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Posted to commits@ambari.apache.org by be...@apache.org on 2017/10/24 11:52:54 UTC

ambari git commit: AMBARI-22297 Enrich deserialized v2 blueprint (benyoka)

Repository: ambari
Updated Branches:
  refs/heads/branch-feature-AMBARI-14714 f50d9a2aa -> acab46dc6


AMBARI-22297 Enrich deserialized v2 blueprint (benyoka)


Project: http://git-wip-us.apache.org/repos/asf/ambari/repo
Commit: http://git-wip-us.apache.org/repos/asf/ambari/commit/acab46dc
Tree: http://git-wip-us.apache.org/repos/asf/ambari/tree/acab46dc
Diff: http://git-wip-us.apache.org/repos/asf/ambari/diff/acab46dc

Branch: refs/heads/branch-feature-AMBARI-14714
Commit: acab46dc626d7eef9fdf610c8379b34645bcd758
Parents: f50d9a2
Author: Balazs Bence Sari <be...@apache.org>
Authored: Tue Oct 24 13:52:46 2017 +0200
Committer: Balazs Bence Sari <be...@apache.org>
Committed: Tue Oct 24 13:52:46 2017 +0200

----------------------------------------------------------------------
 .../StackAdvisorBlueprintProcessor.java         |    2 +-
 .../ambari/server/controller/StackV2.java       | 1029 +++++++++---------
 .../ambari/server/topology/BlueprintImplV2.java |  211 ++--
 .../ambari/server/topology/BlueprintV2.java     |    8 +-
 .../server/topology/BlueprintV2Factory.java     |    2 +
 .../ambari/server/topology/ComponentV2.java     |    9 +-
 .../ambari/server/topology/HostGroupV2.java     |    9 +-
 .../ambari/server/topology/HostGroupV2Impl.java |   37 +-
 .../apache/ambari/server/topology/Service.java  |   58 +-
 .../ambari/server/topology/ServiceGroup.java    |   28 +-
 .../ambari/server/topology/ServiceId.java       |   10 +
 .../apache/ambari/server/topology/Setting.java  |   18 +-
 .../validators/BlueprintImplV2Test.java         |   11 +
 .../test/resources/blueprintv2/blueprintv2.json |   24 +-
 14 files changed, 800 insertions(+), 656 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/ambari/blob/acab46dc/ambari-server/src/main/java/org/apache/ambari/server/api/services/stackadvisor/StackAdvisorBlueprintProcessor.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/api/services/stackadvisor/StackAdvisorBlueprintProcessor.java b/ambari-server/src/main/java/org/apache/ambari/server/api/services/stackadvisor/StackAdvisorBlueprintProcessor.java
index 2e9ac9f..9bbdc37 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/api/services/stackadvisor/StackAdvisorBlueprintProcessor.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/api/services/stackadvisor/StackAdvisorBlueprintProcessor.java
@@ -117,7 +117,7 @@ public class StackAdvisorBlueprintProcessor {
 
   private Map<String, Set<String>> gatherHostGroupComponents(ClusterTopology clusterTopology) {
     Map<String, Set<String>> hgComponentsMap = Maps.newHashMap();
-    for (Map.Entry<String, HostGroupV2> hgEnrty: clusterTopology.getBlueprint().getHostGroups().entrySet()) {
+    for (Map.Entry<String, ? extends HostGroupV2> hgEnrty: clusterTopology.getBlueprint().getHostGroups().entrySet()) {
       hgComponentsMap.put(hgEnrty.getKey(), Sets.newCopyOnWriteArraySet(hgEnrty.getValue().getComponentNames()));
     }
     return hgComponentsMap;

http://git-wip-us.apache.org/repos/asf/ambari/blob/acab46dc/ambari-server/src/main/java/org/apache/ambari/server/controller/StackV2.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/controller/StackV2.java b/ambari-server/src/main/java/org/apache/ambari/server/controller/StackV2.java
index 169bf6a..040e604 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/controller/StackV2.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/controller/StackV2.java
@@ -7,7 +7,7 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -30,6 +30,7 @@ import org.apache.ambari.server.state.ComponentInfo;
 import org.apache.ambari.server.state.DependencyInfo;
 import org.apache.ambari.server.state.PropertyDependencyInfo;
 import org.apache.ambari.server.state.PropertyInfo;
+import org.apache.ambari.server.state.StackId;
 import org.apache.ambari.server.state.ValueAttributesInfo;
 import org.apache.ambari.server.topology.Cardinality;
 import org.apache.ambari.server.topology.Configuration;
@@ -39,568 +40,572 @@ import org.apache.ambari.server.topology.Configuration;
  */
 public class StackV2 {
 
-    /** Stack name */
-    private final String name;
-
-    /** Stack version */
-    private final String version;
-
-    /** Repo version */
-    private final String repoVersion;
-
-    /** Map of service name to components */
-    private final Map<String, Collection<String>> serviceComponents;
-
-    /** Map of component to service */
-    private final Map<String, String> componentService;
-
-    /** Map of component to dependencies */
-    private final Map<String, Collection<DependencyInfo>> dependencies;
-
-    /** Map of dependency to conditional service */
-    private final Map<DependencyInfo, String> dependencyConditionalServiceMap;
-
-    /**
-     * Map of database component name to configuration property which indicates whether
-     * the database in to be managed or if it is an external non-managed instance.
-     * If the value of the config property starts with 'New', the database is determined
-     * to be managed, otherwise it is non-managed.
-     */
-    private final Map<String, String> dbDependencyInfo;
-
-    /** Map of component to required cardinality */
-    private final Map<String, String> cardinalityRequirements = new HashMap<>();
-
-    //todo: instead of all these maps from component -> * ,
-    //todo: we should use a Component object with all of these attributes
-    private Set<String> masterComponents = new HashSet<>();
-
-    /** Map of component to auto-deploy information */
-    private final Map<String, AutoDeployInfo> componentAutoDeployInfo;
-
-    /** Map of service to config type properties */
-    private final Map<String, Map<String, Map<String, ConfigProperty>>> serviceConfigurations;
-
-    /** Map of service to required type properties */
-    private final Map<String, Map<String, Map<String, ConfigProperty>>> requiredServiceConfigurations;
-
-    /** Map of service to config type properties */
-    private final Map<String, Map<String, ConfigProperty>> stackConfigurations;
-
-    /** Map of service to set of excluded config types */
-    private final Map<String, Set<String>> excludedConfigurationTypes;
-
-    public StackV2(String name,
-                   String version,
-                   String repoVersion,
-                   Map<String, Collection<String>> serviceComponents,
-                   Map<String, Collection<DependencyInfo>> dependencies,
-                   Map<String, String> dbDependencyInfo,
-                   Map<String, AutoDeployInfo> componentAutoDeployInfo,
-                   Map<String, Map<String, Map<String, ConfigProperty>>> serviceConfigurations,
-                   Map<String, Map<String, Map<String, ConfigProperty>>> requiredServiceConfigurations,
-                   Map<String, Map<String, ConfigProperty>> stackConfigurations,
-                   Map<String, Set<String>> excludedConfigurationTypes) {
-        this.name = name;
-        this.version = version;
-        this.repoVersion = repoVersion;
-
-        this.serviceComponents = serviceComponents;
-        this.componentService = new HashMap<>();
-        for (Map.Entry<String, Collection<String>> entry: serviceComponents.entrySet()) {
-            for (String comp: entry.getValue()) {
-                componentService.put(comp, entry.getKey());
-            }
-        }
-
-        this.dependencies = dependencies;
-        this.dependencyConditionalServiceMap = new HashMap<>();
-        for (Map.Entry<String, Collection<DependencyInfo>> entry: dependencies.entrySet()) {
-            for (DependencyInfo di: entry.getValue()) {
-                dependencyConditionalServiceMap.put(di, entry.getKey());
-            }
-        }
-
-        this.dbDependencyInfo = dbDependencyInfo;
-        this.componentAutoDeployInfo = componentAutoDeployInfo;
-        this.serviceConfigurations = serviceConfigurations;
-        this.requiredServiceConfigurations = requiredServiceConfigurations;
-        this.stackConfigurations = stackConfigurations;
-        this.excludedConfigurationTypes = excludedConfigurationTypes;
-    }
-
-    /** @return stack name */
-    public String getName() {
-        return name;
-    }
-
-    /** @return stack version */
-    public String getVersion() {
-        return version;
-    }
-
-    /** @return repo version */
-    public String getRepoVersion() { return repoVersion; }
-
-    Map<DependencyInfo, String> getDependencyConditionalServiceMap() {
-        return dependencyConditionalServiceMap;
-    }
-
-    /** @return collection of all services for the stack */
-    public Collection<String> getServices() {
-        return serviceComponents.keySet();
-    }
-
-    /**
-     * Get components contained in the stack for the specified service.
-     *
-     * @param service  service name
-     * @return collection of component names for the specified service
-     */
-    public Collection<String> getComponents(String service) {
-        return serviceComponents.get(service);
-    }
-
-    /** @return map of service to associated components */
-    public Map<String, Collection<String>> getComponents() {
-        return serviceComponents;
+  /** Stack name */
+  private final String name;
+
+  /** Stack version */
+  private final String version;
+
+  /** Repo version */
+  private final String repoVersion;
+
+  /** Map of service name to components */
+  private final Map<String, Collection<String>> serviceComponents;
+
+  /** Map of component to service */
+  private final Map<String, String> componentService;
+
+  /** Map of component to dependencies */
+  private final Map<String, Collection<DependencyInfo>> dependencies;
+
+  /** Map of dependency to conditional service */
+  private final Map<DependencyInfo, String> dependencyConditionalServiceMap;
+
+  /**
+   * Map of database component name to configuration property which indicates whether
+   * the database in to be managed or if it is an external non-managed instance.
+   * If the value of the config property starts with 'New', the database is determined
+   * to be managed, otherwise it is non-managed.
+   */
+  private final Map<String, String> dbDependencyInfo;
+
+  /** Map of component to required cardinality */
+  private final Map<String, String> cardinalityRequirements = new HashMap<>();
+
+  //todo: instead of all these maps from component -> * ,
+  //todo: we should use a Component object with all of these attributes
+  private Set<String> masterComponents = new HashSet<>();
+
+  /** Map of component to auto-deploy information */
+  private final Map<String, AutoDeployInfo> componentAutoDeployInfo;
+
+  /** Map of service to config type properties */
+  private final Map<String, Map<String, Map<String, ConfigProperty>>> serviceConfigurations;
+
+  /** Map of service to required type properties */
+  private final Map<String, Map<String, Map<String, ConfigProperty>>> requiredServiceConfigurations;
+
+  /** Map of service to config type properties */
+  private final Map<String, Map<String, ConfigProperty>> stackConfigurations;
+
+  /** Map of service to set of excluded config types */
+  private final Map<String, Set<String>> excludedConfigurationTypes;
+
+  public StackV2(String name,
+           String version,
+           String repoVersion,
+           Map<String, Collection<String>> serviceComponents,
+           Map<String, Collection<DependencyInfo>> dependencies,
+           Map<String, String> dbDependencyInfo,
+           Map<String, AutoDeployInfo> componentAutoDeployInfo,
+           Map<String, Map<String, Map<String, ConfigProperty>>> serviceConfigurations,
+           Map<String, Map<String, Map<String, ConfigProperty>>> requiredServiceConfigurations,
+           Map<String, Map<String, ConfigProperty>> stackConfigurations,
+           Map<String, Set<String>> excludedConfigurationTypes) {
+    this.name = name;
+    this.version = version;
+    this.repoVersion = repoVersion;
+
+    this.serviceComponents = serviceComponents;
+    this.componentService = new HashMap<>();
+    for (Map.Entry<String, Collection<String>> entry: serviceComponents.entrySet()) {
+      for (String comp: entry.getValue()) {
+        componentService.put(comp, entry.getKey());
+      }
     }
 
-      /**
-       * Get info for the specified component.
-       *
-       * @param component  component name
-       *
-       * @return component information for the requested component
-       *         or null if the component doesn't exist in the stack
-       */
-      @Deprecated
-      public ComponentInfo getComponentInfo(String component) {
-        ComponentInfo componentInfo = null;
-//        String service = getServiceForComponent(component);
-//        if (service != null) {
-//          try {
-//            componentInfo = controller.getAmbariMetaInfo().getComponent(
-//                getName(), getVersion(), service, component);
-//          } catch (AmbariException e) {
-//            // just return null if component doesn't exist
-//          }
-//        }
-        return componentInfo;
+    this.dependencies = dependencies;
+    this.dependencyConditionalServiceMap = new HashMap<>();
+    for (Map.Entry<String, Collection<DependencyInfo>> entry: dependencies.entrySet()) {
+      for (DependencyInfo di: entry.getValue()) {
+        dependencyConditionalServiceMap.put(di, entry.getKey());
       }
-
-    /**
-     * Get all configuration types, including excluded types for the specified service.
-     *
-     * @param service  service name
-     *
-     * @return collection of all configuration types for the specified service
-     */
-    public Collection<String> getAllConfigurationTypes(String service) {
-        return serviceConfigurations.get(service).keySet();
     }
 
-    /**
-     * Get configuration types for the specified service.
-     * This doesn't include any service excluded types.
-     *
-     * @param service  service name
-     *
-     * @return collection of all configuration types for the specified service
-     */
-    public Collection<String> getConfigurationTypes(String service) {
-        Set<String> serviceTypes = new HashSet<>(serviceConfigurations.get(service).keySet());
-        serviceTypes.removeAll(getExcludedConfigurationTypes(service));
-        return serviceTypes;
-    }
+    this.dbDependencyInfo = dbDependencyInfo;
+    this.componentAutoDeployInfo = componentAutoDeployInfo;
+    this.serviceConfigurations = serviceConfigurations;
+    this.requiredServiceConfigurations = requiredServiceConfigurations;
+    this.stackConfigurations = stackConfigurations;
+    this.excludedConfigurationTypes = excludedConfigurationTypes;
+  }
+
+  /** @return stack name */
+  public String getName() {
+    return name;
+  }
+
+  /** @return stack version */
+  public String getVersion() {
+    return version;
+  }
+
+  public StackId getStackId() {
+    return new StackId(name, version);
+  }
+
+  /** @return repo version */
+  public String getRepoVersion() { return repoVersion; }
+
+  Map<DependencyInfo, String> getDependencyConditionalServiceMap() {
+    return dependencyConditionalServiceMap;
+  }
+
+  /** @return collection of all services for the stack */
+  public Collection<String> getServices() {
+    return serviceComponents.keySet();
+  }
+
+  /**
+   * Get components contained in the stack for the specified service.
+   *
+   * @param service  service name
+   * @return collection of component names for the specified service
+   */
+  public Collection<String> getComponents(String service) {
+    return serviceComponents.get(service);
+  }
+
+  /** @return map of service to associated components */
+  public Map<String, Collection<String>> getComponents() {
+    return serviceComponents;
+  }
 
     /**
-     * Get the set of excluded configuration types for this service.
+     * Get info for the specified component.
      *
-     * @param service service name
+     * @param component  component name
      *
-     * @return Set of names of excluded config types. Will not return null.
+     * @return component information for the requested component
+     *     or null if the component doesn't exist in the stack
      */
-    public Set<String> getExcludedConfigurationTypes(String service) {
-        return excludedConfigurationTypes.containsKey(service) ?
-                excludedConfigurationTypes.get(service) :
-                Collections.emptySet();
+    @Deprecated
+    public ComponentInfo getComponentInfo(String component) {
+    ComponentInfo componentInfo = null;
+//    String service = getServiceForComponent(component);
+//    if (service != null) {
+//      try {
+//      componentInfo = controller.getAmbariMetaInfo().getComponent(
+//        getName(), getVersion(), service, component);
+//      } catch (AmbariException e) {
+//      // just return null if component doesn't exist
+//      }
+//    }
+    return componentInfo;
+    }
+
+  /**
+   * Get all configuration types, including excluded types for the specified service.
+   *
+   * @param service  service name
+   *
+   * @return collection of all configuration types for the specified service
+   */
+  public Collection<String> getAllConfigurationTypes(String service) {
+    return serviceConfigurations.get(service).keySet();
+  }
+
+  /**
+   * Get configuration types for the specified service.
+   * This doesn't include any service excluded types.
+   *
+   * @param service  service name
+   *
+   * @return collection of all configuration types for the specified service
+   */
+  public Collection<String> getConfigurationTypes(String service) {
+    Set<String> serviceTypes = new HashSet<>(serviceConfigurations.get(service).keySet());
+    serviceTypes.removeAll(getExcludedConfigurationTypes(service));
+    return serviceTypes;
+  }
+
+  /**
+   * Get the set of excluded configuration types for this service.
+   *
+   * @param service service name
+   *
+   * @return Set of names of excluded config types. Will not return null.
+   */
+  public Set<String> getExcludedConfigurationTypes(String service) {
+    return excludedConfigurationTypes.containsKey(service) ?
+        excludedConfigurationTypes.get(service) :
+        Collections.emptySet();
+  }
+
+  /**
+   * Get config properties for the specified service and configuration type.
+   *
+   * @param service  service name
+   * @param type   configuration type
+   *
+   * @return map of property names to values for the specified service and configuration type
+   */
+  public Map<String, String> getConfigurationProperties(String service, String type) {
+    Map<String, String> configMap = new HashMap<>();
+    Map<String, ConfigProperty> configProperties = serviceConfigurations.get(service).get(type);
+    if (configProperties != null) {
+      for (Map.Entry<String, ConfigProperty> configProperty : configProperties.entrySet()) {
+        configMap.put(configProperty.getKey(), configProperty.getValue().getValue());
+      }
     }
-
-    /**
-     * Get config properties for the specified service and configuration type.
-     *
-     * @param service  service name
-     * @param type     configuration type
-     *
-     * @return map of property names to values for the specified service and configuration type
-     */
-    public Map<String, String> getConfigurationProperties(String service, String type) {
-        Map<String, String> configMap = new HashMap<>();
-        Map<String, ConfigProperty> configProperties = serviceConfigurations.get(service).get(type);
-        if (configProperties != null) {
-            for (Map.Entry<String, ConfigProperty> configProperty : configProperties.entrySet()) {
-                configMap.put(configProperty.getKey(), configProperty.getValue().getValue());
-            }
+    return configMap;
+  }
+
+  public Map<String, ConfigProperty> getConfigurationPropertiesWithMetadata(String service, String type) {
+    return serviceConfigurations.get(service).get(type);
+  }
+
+  /**
+   * Get all required config properties for the specified service.
+   *
+   * @param service  service name
+   *
+   * @return collection of all required properties for the given service
+   */
+  public Collection<ConfigProperty> getRequiredConfigurationProperties(String service) {
+    Collection<ConfigProperty> requiredConfigProperties = new HashSet<>();
+    Map<String, Map<String, ConfigProperty>> serviceProperties = requiredServiceConfigurations.get(service);
+    if (serviceProperties != null) {
+      for (Map.Entry<String, Map<String, ConfigProperty>> typePropertiesEntry : serviceProperties.entrySet()) {
+        requiredConfigProperties.addAll(typePropertiesEntry.getValue().values());
+      }
+    }
+    return requiredConfigProperties;
+  }
+
+  /**
+   * Get required config properties for the specified service which belong to the specified property type.
+   *
+   * @param service     service name
+   * @param propertyType  property type
+   *
+   * @return collection of required properties for the given service and property type
+   */
+  public Collection<ConfigProperty> getRequiredConfigurationProperties(String service, PropertyInfo.PropertyType propertyType) {
+    Collection<ConfigProperty> matchingProperties = new HashSet<>();
+    Map<String, Map<String, ConfigProperty>> requiredProperties = requiredServiceConfigurations.get(service);
+    if (requiredProperties != null) {
+      for (Map.Entry<String, Map<String, ConfigProperty>> typePropertiesEntry : requiredProperties.entrySet()) {
+        for (ConfigProperty configProperty : typePropertiesEntry.getValue().values()) {
+          if (configProperty.getPropertyTypes().contains(propertyType)) {
+            matchingProperties.add(configProperty);
+          }
         }
-        return configMap;
+      }
     }
-
-    public Map<String, ConfigProperty> getConfigurationPropertiesWithMetadata(String service, String type) {
-        return serviceConfigurations.get(service).get(type);
+    return matchingProperties;
+  }
+
+  public boolean isPasswordProperty(String service, String type, String propertyName) {
+    return (serviceConfigurations.containsKey(service) &&
+        serviceConfigurations.get(service).containsKey(type) &&
+        serviceConfigurations.get(service).get(type).containsKey(propertyName) &&
+        serviceConfigurations.get(service).get(type).get(propertyName).getPropertyTypes().
+            contains(PropertyInfo.PropertyType.PASSWORD));
+  }
+
+  //todo
+  public Map<String, String> getStackConfigurationProperties(String type) {
+    Map<String, String> configMap = new HashMap<>();
+    Map<String, ConfigProperty> configProperties = stackConfigurations.get(type);
+    if (configProperties != null) {
+      for (Map.Entry<String, ConfigProperty> configProperty : configProperties.entrySet()) {
+        configMap.put(configProperty.getKey(), configProperty.getValue().getValue());
+      }
     }
-
-    /**
-     * Get all required config properties for the specified service.
-     *
-     * @param service  service name
-     *
-     * @return collection of all required properties for the given service
-     */
-    public Collection<ConfigProperty> getRequiredConfigurationProperties(String service) {
-        Collection<ConfigProperty> requiredConfigProperties = new HashSet<>();
-        Map<String, Map<String, ConfigProperty>> serviceProperties = requiredServiceConfigurations.get(service);
-        if (serviceProperties != null) {
-            for (Map.Entry<String, Map<String, ConfigProperty>> typePropertiesEntry : serviceProperties.entrySet()) {
-                requiredConfigProperties.addAll(typePropertiesEntry.getValue().values());
+    return configMap;
+  }
+
+  public boolean isKerberosPrincipalNameProperty(String service, String type, String propertyName) {
+    return (serviceConfigurations.containsKey(service) &&
+        serviceConfigurations.get(service).containsKey(type) &&
+        serviceConfigurations.get(service).get(type).containsKey(propertyName) &&
+        serviceConfigurations.get(service).get(type).get(propertyName).getPropertyTypes().
+            contains(PropertyInfo.PropertyType.KERBEROS_PRINCIPAL));
+  }
+  /**
+   * Get config attributes for the specified service and configuration type.
+   *
+   * @param service  service name
+   * @param type   configuration type
+   *
+   * @return  map of attribute names to map of property names to attribute values
+   *      for the specified service and configuration type
+   */
+  public Map<String, Map<String, String>> getConfigurationAttributes(String service, String type) {
+    Map<String, Map<String, String>> attributesMap = new HashMap<>();
+    Map<String, ConfigProperty> configProperties = serviceConfigurations.get(service).get(type);
+    if (configProperties != null) {
+      for (Map.Entry<String, ConfigProperty> configProperty : configProperties.entrySet()) {
+        String propertyName = configProperty.getKey();
+        Map<String, String> propertyAttributes = configProperty.getValue().getAttributes();
+        if (propertyAttributes != null) {
+          for (Map.Entry<String, String> propertyAttribute : propertyAttributes.entrySet()) {
+            String attributeName = propertyAttribute.getKey();
+            String attributeValue = propertyAttribute.getValue();
+            if (attributeValue != null) {
+              Map<String, String> attributes = getWithEmptyDefault(attributesMap, attributeName);
+              attributes.put(propertyName, attributeValue);
             }
+          }
         }
-        return requiredConfigProperties;
+      }
     }
-
-    /**
-     * Get required config properties for the specified service which belong to the specified property type.
-     *
-     * @param service       service name
-     * @param propertyType  property type
-     *
-     * @return collection of required properties for the given service and property type
-     */
-    public Collection<ConfigProperty> getRequiredConfigurationProperties(String service, PropertyInfo.PropertyType propertyType) {
-        Collection<ConfigProperty> matchingProperties = new HashSet<>();
-        Map<String, Map<String, ConfigProperty>> requiredProperties = requiredServiceConfigurations.get(service);
-        if (requiredProperties != null) {
-            for (Map.Entry<String, Map<String, ConfigProperty>> typePropertiesEntry : requiredProperties.entrySet()) {
-                for (ConfigProperty configProperty : typePropertiesEntry.getValue().values()) {
-                    if (configProperty.getPropertyTypes().contains(propertyType)) {
-                        matchingProperties.add(configProperty);
-                    }
-                }
-            }
+    return attributesMap;
+  }
+
+  //todo:
+  public Map<String, Map<String, String>> getStackConfigurationAttributes(String type) {
+    Map<String, Map<String, String>> attributesMap = new HashMap<>();
+    Map<String, ConfigProperty> configProperties = stackConfigurations.get(type);
+    if (configProperties != null) {
+      for (Map.Entry<String, ConfigProperty> configProperty : configProperties.entrySet()) {
+        String propertyName = configProperty.getKey();
+        Map<String, String> propertyAttributes = configProperty.getValue().getAttributes();
+        if (propertyAttributes != null) {
+          for (Map.Entry<String, String> propertyAttribute : propertyAttributes.entrySet()) {
+            String attributeName = propertyAttribute.getKey();
+            String attributeValue = propertyAttribute.getValue();
+            Map<String, String> attributes = getWithEmptyDefault(attributesMap, attributeName);
+            attributes.put(propertyName, attributeValue);
+          }
         }
-        return matchingProperties;
+      }
     }
-
-    public boolean isPasswordProperty(String service, String type, String propertyName) {
-        return (serviceConfigurations.containsKey(service) &&
-                serviceConfigurations.get(service).containsKey(type) &&
-                serviceConfigurations.get(service).get(type).containsKey(propertyName) &&
-                serviceConfigurations.get(service).get(type).get(propertyName).getPropertyTypes().
-                        contains(PropertyInfo.PropertyType.PASSWORD));
+    return attributesMap;
+  }
+
+  /**
+   * Get the service for the specified component.
+   *
+   * @param component  component name
+   *
+   * @return service name that contains tha specified component
+   */
+  public String getServiceForComponent(String component) {
+    return componentService.get(component);
+  }
+
+  /**
+   * Get the names of the services which contains the specified components.
+   *
+   * @param components collection of components
+   *
+   * @return collection of services which contain the specified components
+   */
+  public Collection<String> getServicesForComponents(Collection<String> components) {
+    Set<String> services = new HashSet<>();
+    for (String component : components) {
+      services.add(getServiceForComponent(component));
+    }
+
+    return services;
+  }
+
+  /**
+   * Obtain the service name which corresponds to the specified configuration.
+   *
+   * @param config  configuration type
+   *
+   * @return name of service which corresponds to the specified configuration type
+   */
+  public String getServiceForConfigType(String config) {
+    for (Map.Entry<String, Map<String, Map<String, ConfigProperty>>> entry : serviceConfigurations.entrySet()) {
+      Map<String, Map<String, ConfigProperty>> typeMap = entry.getValue();
+      String serviceName = entry.getKey();
+      if (typeMap.containsKey(config) && !getExcludedConfigurationTypes(serviceName).contains(config)) {
+        return serviceName;
+      }
     }
-
-    //todo
-    public Map<String, String> getStackConfigurationProperties(String type) {
-        Map<String, String> configMap = new HashMap<>();
-        Map<String, ConfigProperty> configProperties = stackConfigurations.get(type);
-        if (configProperties != null) {
-            for (Map.Entry<String, ConfigProperty> configProperty : configProperties.entrySet()) {
-                configMap.put(configProperty.getKey(), configProperty.getValue().getValue());
-            }
+    throw new IllegalArgumentException(
+        "Specified configuration type is not associated with any service: " + config);
+  }
+
+  /**
+   * Return the dependencies specified for the given component.
+   *
+   * @param component  component to get dependency information for
+   *
+   * @return collection of dependency information for the specified component
+   */
+  //todo: full dependency graph
+  public Collection<DependencyInfo> getDependenciesForComponent(String component) {
+    return dependencies.containsKey(component) ? dependencies.get(component) :
+        Collections.emptySet();
+  }
+
+  /**
+   * Get the service, if any, that a component dependency is conditional on.
+   *
+   * @param dependency  dependency to get conditional service for
+   *
+   * @return conditional service for provided component or null if dependency
+   *     is not conditional on a service
+   */
+  public String getConditionalServiceForDependency(DependencyInfo dependency) {
+    return dependencyConditionalServiceMap.get(dependency);
+  }
+
+  public String getExternalComponentConfig(String component) {
+    return dbDependencyInfo.get(component);
+  }
+
+  /**
+   * Obtain the required cardinality for the specified component.
+   */
+  public Cardinality getCardinality(String component) {
+    return new Cardinality(cardinalityRequirements.get(component));
+  }
+
+  /**
+   * Obtain auto-deploy information for the specified component.
+   */
+  public AutoDeployInfo getAutoDeployInfo(String component) {
+    return componentAutoDeployInfo.get(component);
+  }
+
+  public boolean isMasterComponent(String component) {
+    return masterComponents.contains(component);
+  }
+
+  public Configuration getConfiguration(Collection<String> services) {
+    Map<String, Map<String, Map<String, String>>> attributes = new HashMap<>();
+    Map<String, Map<String, String>> properties = new HashMap<>();
+
+    for (String service : services) {
+      Collection<String> serviceConfigTypes = getConfigurationTypes(service);
+      for (String type : serviceConfigTypes) {
+        Map<String, String> typeProps = getWithEmptyDefault(properties, type);
+        typeProps.putAll(getConfigurationProperties(service, type));
+
+        Map<String, Map<String, String>> stackTypeAttributes = getConfigurationAttributes(service, type);
+        if (!stackTypeAttributes.isEmpty()) {
+          if (! attributes.containsKey(type)) {
+            attributes.put(type, new HashMap<>());
+          }
+          Map<String, Map<String, String>> typeAttributes = attributes.get(type);
+          for (Map.Entry<String, Map<String, String>> attribute : stackTypeAttributes.entrySet()) {
+            String attributeName = attribute.getKey();
+            Map<String, String> attributeProps = getWithEmptyDefault(typeAttributes, attributeName);
+            attributeProps.putAll(attribute.getValue());
+          }
         }
-        return configMap;
-    }
-
-    public boolean isKerberosPrincipalNameProperty(String service, String type, String propertyName) {
-        return (serviceConfigurations.containsKey(service) &&
-                serviceConfigurations.get(service).containsKey(type) &&
-                serviceConfigurations.get(service).get(type).containsKey(propertyName) &&
-                serviceConfigurations.get(service).get(type).get(propertyName).getPropertyTypes().
-                        contains(PropertyInfo.PropertyType.KERBEROS_PRINCIPAL));
+      }
     }
-    /**
-     * Get config attributes for the specified service and configuration type.
-     *
-     * @param service  service name
-     * @param type     configuration type
-     *
-     * @return  map of attribute names to map of property names to attribute values
-     *          for the specified service and configuration type
-     */
-    public Map<String, Map<String, String>> getConfigurationAttributes(String service, String type) {
-        Map<String, Map<String, String>> attributesMap = new HashMap<>();
-        Map<String, ConfigProperty> configProperties = serviceConfigurations.get(service).get(type);
-        if (configProperties != null) {
-            for (Map.Entry<String, ConfigProperty> configProperty : configProperties.entrySet()) {
-                String propertyName = configProperty.getKey();
-                Map<String, String> propertyAttributes = configProperty.getValue().getAttributes();
-                if (propertyAttributes != null) {
-                    for (Map.Entry<String, String> propertyAttribute : propertyAttributes.entrySet()) {
-                        String attributeName = propertyAttribute.getKey();
-                        String attributeValue = propertyAttribute.getValue();
-                        if (attributeValue != null) {
-                            Map<String, String> attributes = getWithEmptyDefault(attributesMap, attributeName);
-                            attributes.put(propertyName, attributeValue);
-                        }
-                    }
-                }
-            }
+    return new Configuration(properties, attributes);
+  }
+
+  public Configuration getConfiguration() {
+    Map<String, Map<String, Map<String, String>>> stackAttributes = new HashMap<>();
+    Map<String, Map<String, String>> stackConfigs = new HashMap<>();
+
+    for (String service : getServices()) {
+      for (String type : getAllConfigurationTypes(service)) {
+        Map<String, String> typeProps = getWithEmptyDefault(stackConfigs, type);
+        typeProps.putAll(getConfigurationProperties(service, type));
+
+        Map<String, Map<String, String>> stackTypeAttributes = getConfigurationAttributes(service, type);
+        if (!stackTypeAttributes.isEmpty()) {
+          if (! stackAttributes.containsKey(type)) {
+            stackAttributes.put(type, new HashMap<>());
+          }
+          Map<String, Map<String, String>> typeAttrs = stackAttributes.get(type);
+          for (Map.Entry<String, Map<String, String>> attribute : stackTypeAttributes.entrySet()) {
+            String attributeName = attribute.getKey();
+            Map<String, String> attributes = getWithEmptyDefault(typeAttrs, attributeName);
+            attributes.putAll(attribute.getValue());
+          }
         }
-        return attributesMap;
+      }
     }
+    return new Configuration(stackConfigs, stackAttributes);
+  }
 
-    //todo:
-    public Map<String, Map<String, String>> getStackConfigurationAttributes(String type) {
-        Map<String, Map<String, String>> attributesMap = new HashMap<>();
-        Map<String, ConfigProperty> configProperties = stackConfigurations.get(type);
-        if (configProperties != null) {
-            for (Map.Entry<String, ConfigProperty> configProperty : configProperties.entrySet()) {
-                String propertyName = configProperty.getKey();
-                Map<String, String> propertyAttributes = configProperty.getValue().getAttributes();
-                if (propertyAttributes != null) {
-                    for (Map.Entry<String, String> propertyAttribute : propertyAttributes.entrySet()) {
-                        String attributeName = propertyAttribute.getKey();
-                        String attributeValue = propertyAttribute.getValue();
-                        Map<String, String> attributes = getWithEmptyDefault(attributesMap, attributeName);
-                        attributes.put(propertyName, attributeValue);
-                    }
-                }
-            }
-        }
-        return attributesMap;
+  static <OK, IK, IV> Map<IK, IV> getWithEmptyDefault(Map<OK, Map<IK, IV>> outerMap, OK outerKey) {
+    Map<IK, IV> innerMap = outerMap.get(outerKey);
+    if (null == innerMap) {
+      innerMap = new HashMap<>();
+      outerMap.put(outerKey, innerMap);
     }
+    return innerMap;
+  }
 
-    /**
-     * Get the service for the specified component.
-     *
-     * @param component  component name
-     *
-     * @return service name that contains tha specified component
-     */
-    public String getServiceForComponent(String component) {
-        return componentService.get(component);
-    }
 
-    /**
-     * Get the names of the services which contains the specified components.
-     *
-     * @param components collection of components
-     *
-     * @return collection of services which contain the specified components
-     */
-    public Collection<String> getServicesForComponents(Collection<String> components) {
-        Set<String> services = new HashSet<>();
-        for (String component : components) {
-            services.add(getServiceForComponent(component));
-        }
+  /**
+   * Contains a configuration property's value and attributes.
+   */
+  public static class ConfigProperty {
+    private ValueAttributesInfo propertyValueAttributes = null;
+    private String name;
+    private String value;
+    private Map<String, String> attributes;
+    private Set<PropertyInfo.PropertyType> propertyTypes;
+    private String type;
+    private Set<PropertyDependencyInfo> dependsOnProperties =
+        Collections.emptySet();
 
-        return services;
+    public ConfigProperty(ReadOnlyConfigurationResponse config) {
+      this.name = config.getPropertyName();
+      this.value = config.getPropertyValue();
+      this.attributes = config.getPropertyAttributes();
+      this.propertyTypes = config.getPropertyType();
+      this.type = normalizeType(config.getType());
+      this.dependsOnProperties = config.getDependsOnProperties();
+      this.propertyValueAttributes = config.getPropertyValueAttributes();
     }
 
-    /**
-     * Obtain the service name which corresponds to the specified configuration.
-     *
-     * @param config  configuration type
-     *
-     * @return name of service which corresponds to the specified configuration type
-     */
-    public String getServiceForConfigType(String config) {
-        for (Map.Entry<String, Map<String, Map<String, ConfigProperty>>> entry : serviceConfigurations.entrySet()) {
-            Map<String, Map<String, ConfigProperty>> typeMap = entry.getValue();
-            String serviceName = entry.getKey();
-            if (typeMap.containsKey(config) && !getExcludedConfigurationTypes(serviceName).contains(config)) {
-                return serviceName;
-            }
-        }
-        throw new IllegalArgumentException(
-                "Specified configuration type is not associated with any service: " + config);
+    public ConfigProperty(String type, String name, String value) {
+      this.type = type;
+      this.name = name;
+      this.value = value;
     }
 
-    /**
-     * Return the dependencies specified for the given component.
-     *
-     * @param component  component to get dependency information for
-     *
-     * @return collection of dependency information for the specified component
-     */
-    //todo: full dependency graph
-    public Collection<DependencyInfo> getDependenciesForComponent(String component) {
-        return dependencies.containsKey(component) ? dependencies.get(component) :
-                Collections.emptySet();
+    public String getName() {
+      return name;
     }
 
-    /**
-     * Get the service, if any, that a component dependency is conditional on.
-     *
-     * @param dependency  dependency to get conditional service for
-     *
-     * @return conditional service for provided component or null if dependency
-     *         is not conditional on a service
-     */
-    public String getConditionalServiceForDependency(DependencyInfo dependency) {
-        return dependencyConditionalServiceMap.get(dependency);
+    public String getValue() {
+      return value;
     }
 
-    public String getExternalComponentConfig(String component) {
-        return dbDependencyInfo.get(component);
+    public void setValue(String value) {
+      this.value = value;
     }
 
-    /**
-     * Obtain the required cardinality for the specified component.
-     */
-    public Cardinality getCardinality(String component) {
-        return new Cardinality(cardinalityRequirements.get(component));
+    public String getType() {
+      return type;
     }
 
-    /**
-     * Obtain auto-deploy information for the specified component.
-     */
-    public AutoDeployInfo getAutoDeployInfo(String component) {
-        return componentAutoDeployInfo.get(component);
+    public Set<PropertyInfo.PropertyType> getPropertyTypes() {
+      return propertyTypes;
     }
 
-    public boolean isMasterComponent(String component) {
-        return masterComponents.contains(component);
+    public void setPropertyTypes(Set<PropertyInfo.PropertyType> propertyTypes) {
+      this.propertyTypes = propertyTypes;
     }
 
-    public Configuration getConfiguration(Collection<String> services) {
-        Map<String, Map<String, Map<String, String>>> attributes = new HashMap<>();
-        Map<String, Map<String, String>> properties = new HashMap<>();
-
-        for (String service : services) {
-            Collection<String> serviceConfigTypes = getConfigurationTypes(service);
-            for (String type : serviceConfigTypes) {
-                Map<String, String> typeProps = getWithEmptyDefault(properties, type);
-                typeProps.putAll(getConfigurationProperties(service, type));
-
-                Map<String, Map<String, String>> stackTypeAttributes = getConfigurationAttributes(service, type);
-                if (!stackTypeAttributes.isEmpty()) {
-                    if (! attributes.containsKey(type)) {
-                        attributes.put(type, new HashMap<>());
-                    }
-                    Map<String, Map<String, String>> typeAttributes = attributes.get(type);
-                    for (Map.Entry<String, Map<String, String>> attribute : stackTypeAttributes.entrySet()) {
-                        String attributeName = attribute.getKey();
-                        Map<String, String> attributeProps = getWithEmptyDefault(typeAttributes, attributeName);
-                        attributeProps.putAll(attribute.getValue());
-                    }
-                }
-            }
-        }
-        return new Configuration(properties, attributes);
+    public Map<String, String> getAttributes() {
+      return attributes;
     }
 
-    public Configuration getConfiguration() {
-        Map<String, Map<String, Map<String, String>>> stackAttributes = new HashMap<>();
-        Map<String, Map<String, String>> stackConfigs = new HashMap<>();
-
-        for (String service : getServices()) {
-            for (String type : getAllConfigurationTypes(service)) {
-                Map<String, String> typeProps = getWithEmptyDefault(stackConfigs, type);
-                typeProps.putAll(getConfigurationProperties(service, type));
-
-                Map<String, Map<String, String>> stackTypeAttributes = getConfigurationAttributes(service, type);
-                if (!stackTypeAttributes.isEmpty()) {
-                    if (! stackAttributes.containsKey(type)) {
-                        stackAttributes.put(type, new HashMap<>());
-                    }
-                    Map<String, Map<String, String>> typeAttrs = stackAttributes.get(type);
-                    for (Map.Entry<String, Map<String, String>> attribute : stackTypeAttributes.entrySet()) {
-                        String attributeName = attribute.getKey();
-                        Map<String, String> attributes = getWithEmptyDefault(typeAttrs, attributeName);
-                        attributes.putAll(attribute.getValue());
-                    }
-                }
-            }
-        }
-        return new Configuration(stackConfigs, stackAttributes);
+    public void setAttributes(Map<String, String> attributes) {
+      this.attributes = attributes;
     }
 
-    static <OK, IK, IV> Map<IK, IV> getWithEmptyDefault(Map<OK, Map<IK, IV>> outerMap, OK outerKey) {
-        Map<IK, IV> innerMap = outerMap.get(outerKey);
-        if (null == innerMap) {
-            innerMap = new HashMap<>();
-            outerMap.put(outerKey, innerMap);
-        }
-        return innerMap;
+    public Set<PropertyDependencyInfo> getDependsOnProperties() {
+      return this.dependsOnProperties;
     }
 
+    private String normalizeType(String type) {
+      //strip .xml from type
+      if (type.endsWith(".xml")) {
+        type = type.substring(0, type.length() - 4);
+      }
+      return type;
+    }
 
-    /**
-     * Contains a configuration property's value and attributes.
-     */
-    public static class ConfigProperty {
-        private ValueAttributesInfo propertyValueAttributes = null;
-        private String name;
-        private String value;
-        private Map<String, String> attributes;
-        private Set<PropertyInfo.PropertyType> propertyTypes;
-        private String type;
-        private Set<PropertyDependencyInfo> dependsOnProperties =
-                Collections.emptySet();
-
-        public ConfigProperty(ReadOnlyConfigurationResponse config) {
-            this.name = config.getPropertyName();
-            this.value = config.getPropertyValue();
-            this.attributes = config.getPropertyAttributes();
-            this.propertyTypes = config.getPropertyType();
-            this.type = normalizeType(config.getType());
-            this.dependsOnProperties = config.getDependsOnProperties();
-            this.propertyValueAttributes = config.getPropertyValueAttributes();
-        }
-
-        public ConfigProperty(String type, String name, String value) {
-            this.type = type;
-            this.name = name;
-            this.value = value;
-        }
-
-        public String getName() {
-            return name;
-        }
-
-        public String getValue() {
-            return value;
-        }
-
-        public void setValue(String value) {
-            this.value = value;
-        }
-
-        public String getType() {
-            return type;
-        }
-
-        public Set<PropertyInfo.PropertyType> getPropertyTypes() {
-            return propertyTypes;
-        }
-
-        public void setPropertyTypes(Set<PropertyInfo.PropertyType> propertyTypes) {
-            this.propertyTypes = propertyTypes;
-        }
-
-        public Map<String, String> getAttributes() {
-            return attributes;
-        }
-
-        public void setAttributes(Map<String, String> attributes) {
-            this.attributes = attributes;
-        }
-
-        public Set<PropertyDependencyInfo> getDependsOnProperties() {
-            return this.dependsOnProperties;
-        }
-
-        private String normalizeType(String type) {
-            //strip .xml from type
-            if (type.endsWith(".xml")) {
-                type = type.substring(0, type.length() - 4);
-            }
-            return type;
-        }
-
-        public ValueAttributesInfo getPropertyValueAttributes() {
-            return propertyValueAttributes;
-        }
+    public ValueAttributesInfo getPropertyValueAttributes() {
+      return propertyValueAttributes;
     }
+  }
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ambari/blob/acab46dc/ambari-server/src/main/java/org/apache/ambari/server/topology/BlueprintImplV2.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/topology/BlueprintImplV2.java b/ambari-server/src/main/java/org/apache/ambari/server/topology/BlueprintImplV2.java
index 4b7dd32..044e78a 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/topology/BlueprintImplV2.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/topology/BlueprintImplV2.java
@@ -19,13 +19,16 @@
 
 package org.apache.ambari.server.topology;
 
+import static java.util.stream.Collectors.toList;
+import static java.util.stream.Collectors.toMap;
+import static java.util.stream.Collectors.toSet;
+
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 import java.util.Set;
-import java.util.stream.Collectors;
 
 import javax.annotation.Nonnull;
 
@@ -33,7 +36,6 @@ import org.apache.ambari.server.controller.StackV2;
 import org.apache.ambari.server.orm.entities.BlueprintEntity;
 import org.apache.ambari.server.state.ConfigHelper;
 import org.apache.ambari.server.state.StackId;
-import org.apache.commons.lang.StringUtils;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
@@ -46,14 +48,13 @@ public class BlueprintImplV2 implements BlueprintV2 {
   private String name;
   private SecurityConfiguration securityConfiguration;
   private Collection<RepositoryVersion> repositoryVersions;
-  private Collection<ServiceGroup> serviceGroups;
-  private Collection<? extends HostGroupV2> hostGroups;
+  private Map<String, ServiceGroup> serviceGroups;
   private Setting setting;
+  private Configuration configuration;
 
   // Transient fields
   @JsonIgnore
-  private Map<String, HostGroupV2> hostGroupMap = new HashMap<>();
-
+  private Map<String, HostGroupV2Impl> hostGroupMap = new HashMap<>();
 
   @JsonIgnore
   private Map<StackId, StackV2> stacks;
@@ -61,8 +62,12 @@ public class BlueprintImplV2 implements BlueprintV2 {
   @JsonIgnore
   private List<RepositorySetting> repoSettings;
 
+  @JsonIgnore
+  private Map<ServiceId, Service> services = new HashMap<>();
+
   public void setStacks(Map<StackId, StackV2> stacks) {
     this.stacks = stacks;
+    getAllServices().stream().forEach(s -> s.setStackFromBlueprint(this));
   }
 
   @JsonProperty("Blueprints")
@@ -86,13 +91,12 @@ public class BlueprintImplV2 implements BlueprintV2 {
 
   @JsonProperty("service_groups")
   public void setServiceGroups(Collection<ServiceGroup> serviceGroups) {
-    this.serviceGroups = serviceGroups;
+    this.serviceGroups = serviceGroups.stream().collect(toMap( sg -> sg.getName(), sg -> sg ));
   }
 
   @JsonProperty("host_groups")
   public void setHostGroups(Collection<HostGroupV2Impl> hostGroups) {
-    this.hostGroups = hostGroups;
-    this.hostGroupMap = hostGroups.stream().collect(Collectors.toMap(
+    this.hostGroupMap = hostGroups.stream().collect(toMap(
       hg -> hg.getName(),
       hg -> hg
     ));
@@ -114,7 +118,8 @@ public class BlueprintImplV2 implements BlueprintV2 {
   }
 
   @Override
-  public Map<String, HostGroupV2> getHostGroups() {
+  @JsonProperty("host_groups")
+  public Map<String, ? extends HostGroupV2> getHostGroups() {
     return hostGroupMap;
   }
 
@@ -125,18 +130,23 @@ public class BlueprintImplV2 implements BlueprintV2 {
 
   @Override
   public Collection<String> getStackIds() {
-    return repositoryVersions.stream().map(rv -> rv.getStackId()).collect(Collectors.toList());
+    return repositoryVersions.stream().map(rv -> rv.getStackId()).collect(toList());
   }
 
   @Override
   public Collection<ServiceGroup> getServiceGroups() {
-    return serviceGroups;
+    return serviceGroups.values();
+  }
+
+  @Override
+  public ServiceGroup getServiceGroup(String name) {
+    return serviceGroups.get(name);
   }
 
   @Override
   @JsonIgnore
   public Collection<ServiceId> getAllServiceIds() {
-    return hostGroups.stream().flatMap(hg -> hg.getServiceIds().stream()).collect(Collectors.toSet());
+    return getHostGroups().values().stream().flatMap(hg -> hg.getServiceIds().stream()).collect(toSet());
   }
 
   @Override
@@ -146,70 +156,90 @@ public class BlueprintImplV2 implements BlueprintV2 {
       return serviceGroup.getServices();
     } else {
       return serviceGroup.getServices().stream().filter(
-              service -> service.getType().equalsIgnoreCase(serviceType)).collect(Collectors.toList());
+              service -> service.getType().equalsIgnoreCase(serviceType)).collect(toList());
     }
   }
 
   @Override
   @JsonIgnore
   public StackV2 getStackById(String stackId) {
-    return null;
+    return stacks.get(new StackId(stackId));
   }
 
   @Override
   @JsonIgnore
   public Collection<Service> getAllServices() {
-    return null;
+    return services.values();
+  }
+
+  @Override
+  @JsonIgnore
+  public Service getService(ServiceId serviceId) {
+    return services.get(serviceId);
   }
 
   @Override
   @JsonIgnore
   public Collection<String> getAllServiceTypes() {
-    return null;
+    return getServiceGroups().stream().flatMap(sg -> sg.getServices().stream()).map(s -> s.getType()).collect(toSet());
   }
 
   @Override
   @JsonIgnore
   public Collection<Service> getServicesByType(String serviceType) {
-    return null;
-//    getAllServices().stream().filter(
-//            service -> service.getType().equalsIgnoreCase(serviceType)).collect(Collectors.toList());
+    return serviceGroups.values().stream().flatMap(sg -> sg.getServiceByType(serviceType).stream()).collect(toList());
   }
 
   @Override
   @JsonIgnore
   public Collection<ComponentV2> getComponents(Service service) {
-    return null;
+    return getHostGroupsForService(service.getId()).stream().flatMap(
+      hg -> hg.getComponents().stream()).
+      collect(toList());
   }
 
   @Override
   @JsonIgnore
   public Collection<ComponentV2> getComponentsByType(Service service, String componentType) {
     return getComponents(service).stream().filter(
-            compnoent -> compnoent.getType().equalsIgnoreCase(componentType)).collect(Collectors.toList());
+            compnoent -> compnoent.getType().equalsIgnoreCase(componentType)).collect(toList());
   }
 
   @Override
   @JsonIgnore
   public Collection<ComponentV2> getComponents(ServiceId serviceId) {
-    return getHostGroupsForService(serviceId).stream().flatMap(hg -> hg.getComponents().stream()).collect(Collectors.toSet());
+    return getHostGroupsForService(serviceId).stream().flatMap(hg -> hg.getComponents().stream()).collect(toSet());
   }
 
   @Override
   @JsonIgnore
   public Collection<HostGroupV2> getHostGroupsForService(ServiceId serviceId) {
-    return hostGroups.stream().filter(hg -> !hg.getComponentsByServiceId(serviceId).isEmpty()).collect(Collectors.toList());
+    return getHostGroups().values().stream().filter(hg -> !hg.getComponentsByServiceId(serviceId).isEmpty()).collect(toList());
   }
 
   @Override
   @JsonIgnore
   public Collection<HostGroupV2> getHostGroupsForComponent(ComponentV2 component) {
-    return hostGroups.stream().filter(hg -> hg.getComponents().contains(component)).collect(Collectors.toList());
+    return hostGroupMap.values().stream().filter(hg -> hg.getComponents().contains(component)).collect(toList());
   }
 
   @Override
+  @JsonIgnore
   public Configuration getConfiguration() {
-    return null;
+    if (null == configuration) {
+      configuration = new Configuration(new HashMap<>(), new HashMap<>());
+      getServiceGroups().stream().forEach( sg -> addChildConfiguration(configuration, sg.getConfiguration()) );
+      getHostGroups().values().stream().forEach(
+        hg -> hg.getComponents().stream().forEach(
+          c -> addChildConfiguration(configuration, c.getConfiguration())));
+    }
+    return configuration;
+  }
+
+  private void addChildConfiguration(Configuration parent, Configuration child) {
+    child.setParentConfiguration(parent);
+    parent.getProperties().putAll(child.getProperties());
+    parent.getAttributes().putAll(child.getAttributes());
   }
 
   @Override
@@ -217,86 +247,54 @@ public class BlueprintImplV2 implements BlueprintV2 {
     return this.setting;
   }
 
-
-
   @Nonnull
   @Override
   @JsonIgnore
   public Collection<String> getAllServiceNames() {
-    return getAllServices().stream().map(s -> s.getName()).collect(Collectors.toList());
+    return getAllServices().stream().map(s -> s.getName()).collect(toList());
   }
 
   @Nonnull
   @Override
   public Collection<String> getComponentNames(ServiceId serviceId) {
-    return getComponents(serviceId).stream().map(c -> c.getName()).collect(Collectors.toList());
+    return getComponents(serviceId).stream().map(c -> c.getName()).collect(toList());
   }
 
   @Override
   public String getRecoveryEnabled(ComponentV2 component) {
-    return null;
-  }
-
-  public String getRecoveryEnabled(String serviceName, String componentName) {
-    // If component name was specified in the list of "component_settings",
-    // determine if recovery_enabled is true or false and return it.
-    Optional<String> recoveryEnabled = getSettingValue(Setting.SETTING_NAME_COMPONENT_SETTINGS,
-      Setting.SETTING_NAME_RECOVERY_ENABLED,
-      Optional.of(componentName));
-    if (recoveryEnabled.isPresent()) {
-      return recoveryEnabled.get();
-    }
-
-    // If component name was specified in the list of "component_settings",
-    // determine if recovery_enabled is true or false and return it.
-    recoveryEnabled = getSettingValue(Setting.SETTING_NAME_SERVICE_SETTINGS,
-      Setting.SETTING_NAME_RECOVERY_ENABLED,
-      Optional.of(serviceName));
-    if (recoveryEnabled.isPresent()) {
-      return recoveryEnabled.get();
-    }
-
-    // If service name is not specified, look up the cluster setting.
-    recoveryEnabled = getSettingValue(Setting.SETTING_NAME_RECOVERY_SETTINGS,
-      Setting.SETTING_NAME_RECOVERY_ENABLED,
-      Optional.empty());
-    if (recoveryEnabled.isPresent()) {
-      return recoveryEnabled.get();
-    }
-
-    return null;
-  }
-
-  private Optional<String> getSettingValue(String settingCategory, String settingName, Optional<String> nameFilter) {
-    if (this.setting != null) {
-      Set<HashMap<String, String>> settingValue = this.setting.getSettingValue(settingCategory);
-      for (Map<String, String> setting : settingValue) {
-        String name = setting.get(Setting.SETTING_NAME_NAME);
-        if (!nameFilter.isPresent() || StringUtils.equals(name, nameFilter.get())) {
-          String value = setting.get(settingName);
-          if (!StringUtils.isEmpty(value)) {
-            return Optional.of(value);
-          }
-        }
-      }
-    }
-    return Optional.empty();
-  }
+    Optional<String> value =
+      setting.getSettingValue(Setting.SETTING_NAME_RECOVERY_SETTINGS, Setting.SETTING_NAME_RECOVERY_ENABLED);
+    // TODO: handle service and component level settings
+    return value.orElse(null);
+  }
+
+//  private Optional<String> getSettingValue(String settingCategory, String settingName, Optional<String> nameFilter) {
+//    if (this.setting != null) {
+//      Set<HashMap<String, String>> settingValue = this.setting.getSettingValue(settingCategory);
+//      for (Map<String, String> setting : settingValue) {
+//        String name = setting.get(Setting.SETTING_NAME_NAME);
+//        if (!nameFilter.isPresent() || StringUtils.equals(name, nameFilter.get())) {
+//          String value = setting.get(settingName);
+//          if (!StringUtils.isEmpty(value)) {
+//            return Optional.of(value);
+//          }
+//        }
+//      }
+//    }
+//    return Optional.empty();
+//  }
 
   @Override
   public String getCredentialStoreEnabled(String serviceName) {
-    // Look up the service and return the credential_store_enabled value.
-    Optional<String> credentialStoreEnabled = getSettingValue(Setting.SETTING_NAME_SERVICE_SETTINGS,
-      Setting.SETTING_NAME_CREDENTIAL_STORE_ENABLED,
-      Optional.of(serviceName));
-    return  credentialStoreEnabled.isPresent() ? credentialStoreEnabled.get() : null;
+    // TODO: this is a service level level setting, handle appropriately
+    return null;
   }
 
   @Override
   public boolean shouldSkipFailure() {
-    Optional<String> shouldSkipFailure = getSettingValue(Setting.SETTING_NAME_DEPLOYMENT_SETTINGS,
-      Setting.SETTING_NAME_SKIP_FAILURE,
-      Optional.empty());
+    Optional<String> shouldSkipFailure = setting.getSettingValue(
+      Setting.SETTING_NAME_DEPLOYMENT_SETTINGS,
+      Setting.SETTING_NAME_SKIP_FAILURE);
     return shouldSkipFailure.isPresent() ? shouldSkipFailure.get().equalsIgnoreCase("true") : false;
   }
 
@@ -312,7 +310,7 @@ public class BlueprintImplV2 implements BlueprintV2 {
       return true;
     }
     final Set<String> serviceNames =
-      getAllServices().stream().map(s -> s.getName()).collect(Collectors.toSet());
+      getAllServices().stream().map(s -> s.getName()).collect(toSet());
     return getStacks().stream().anyMatch(
       stack -> {
         String service = stack.getServiceForConfigType(configType);
@@ -321,9 +319,46 @@ public class BlueprintImplV2 implements BlueprintV2 {
     );
   }
 
+  public void postDeserialization() {
+    // Maintain a ServiceId -> Service map
+    this.services = getAllServiceIds().stream().collect(toMap(
+      serviceId -> serviceId,
+      serviceId -> {
+        ServiceGroup sg = getServiceGroup(serviceId.getServiceGroup());
+        Service service = null != sg ? sg.getServiceByName(serviceId.getName()) : null;
+        if (null == service) {
+          throw new IllegalStateException("Cannot find service for service id: " + serviceId);
+        }
+        return service;
+      }
+    ));
+
+    // Set Service -> ServiceGroup references and Service -> Service dependencies
+    getAllServices().stream().forEach( s -> {
+      s.setServiceGroup(serviceGroups.get(s.getServiceGroupId()));
+      Map<ServiceId, Service> dependencies = s.getDependentServiceIds().stream().collect(toMap(
+        serviceId -> serviceId,
+        serviceId -> getService(serviceId)
+      ));
+      s.setDependencyMap(dependencies);
+    });
+
+
+    // Set HostGroup -> Services and Component -> Service references
+    for (HostGroupV2Impl hg: hostGroupMap.values()) {
+      hg.setServiceMap(hg.getServiceIds().stream().collect(toMap(
+        serviceId -> serviceId,
+        serviceId -> this.services.get(serviceId)
+      )));
+      for (ComponentV2 comp: hg.getComponents()) {
+        comp.setService(hg.getService(comp.getServiceId()));
+      }
+    }
+  }
+
   @Override
   public BlueprintEntity toEntity() {
-    throw new UnsupportedOperationException("This is not supported here and will be removed. Pls. use BlueprintConverter");
+    throw new UnsupportedOperationException("This is not supported here and will be removed. Pls. use BlueprintV2Factory");
   }
 
   @Override

http://git-wip-us.apache.org/repos/asf/ambari/blob/acab46dc/ambari-server/src/main/java/org/apache/ambari/server/topology/BlueprintV2.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/topology/BlueprintV2.java b/ambari-server/src/main/java/org/apache/ambari/server/topology/BlueprintV2.java
index 29539db..b5d5430 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/topology/BlueprintV2.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/topology/BlueprintV2.java
@@ -53,7 +53,7 @@ public interface BlueprintV2 {
    * Get the hot groups contained in the blueprint.
    * @return map of host group name to host group
    */
-  Map<String, HostGroupV2> getHostGroups();
+  Map<String, ? extends HostGroupV2> getHostGroups();
 
   /**
    * Get  stacks associated with the blueprint.
@@ -71,6 +71,8 @@ public interface BlueprintV2 {
 
   Collection<ServiceGroup> getServiceGroups();
 
+  ServiceGroup getServiceGroup(String name);
+
   /**
    * Get all of the services represented in the blueprint.
    *
@@ -78,7 +80,7 @@ public interface BlueprintV2 {
    */
   Collection<ServiceId> getAllServiceIds();
 
-  ;Collection<Service> getAllServices();
+  Collection<Service> getAllServices();
 
   /**
    * Get the names of all the services represented in the blueprint.
@@ -104,6 +106,8 @@ public interface BlueprintV2 {
    */
   Collection<Service> getServicesByType(String serviceType);
 
+  Service getService(ServiceId serviceId);
+
   /**
    * Get services by type from a service group.
    * @param serviceGroup

http://git-wip-us.apache.org/repos/asf/ambari/blob/acab46dc/ambari-server/src/main/java/org/apache/ambari/server/topology/BlueprintV2Factory.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/topology/BlueprintV2Factory.java b/ambari-server/src/main/java/org/apache/ambari/server/topology/BlueprintV2Factory.java
index a8c5b4c..3b656e2 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/topology/BlueprintV2Factory.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/topology/BlueprintV2Factory.java
@@ -87,6 +87,7 @@ public class BlueprintV2Factory {
 
   public BlueprintV2 convertFromEntity(BlueprintV2Entity blueprintEntity) throws NoSuchStackException, IOException {
     BlueprintImplV2 blueprintV2 = createObjectMapper().readValue(blueprintEntity.getContent(), BlueprintImplV2.class);
+    blueprintV2.postDeserialization();
     Map<StackId, StackV2> stacks = new HashMap<>();
     for (String stackIdString: blueprintV2.getStackIds()) {
       StackId stackId = new StackId(stackIdString);
@@ -126,6 +127,7 @@ public class BlueprintV2Factory {
     ObjectMapper om = createObjectMapper();
     String json = om.writeValueAsString(properties);
     BlueprintImplV2 blueprint = om.readValue(json, BlueprintImplV2.class);
+    blueprint.postDeserialization();
     Map<String, StackV2> stacks = new HashMap<>();
     for (String stackId: blueprint.getStackIds()) {
       stacks.put(stackId, stackFactory.create(stackId));

http://git-wip-us.apache.org/repos/asf/ambari/blob/acab46dc/ambari-server/src/main/java/org/apache/ambari/server/topology/ComponentV2.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/topology/ComponentV2.java b/ambari-server/src/main/java/org/apache/ambari/server/topology/ComponentV2.java
index e59b1f9..68744d4 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/topology/ComponentV2.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/topology/ComponentV2.java
@@ -38,6 +38,9 @@ public class ComponentV2 implements Configurable {
 
   private boolean masterComponent = false;
 
+  @JsonIgnore
+  private Service service;
+
   public ComponentV2() { }
 
 
@@ -69,9 +72,8 @@ public class ComponentV2 implements Configurable {
     return serviceId;
   }
 
-  //TODO
   public Service getService() {
-    return null;
+    return service;
   }
 
   //TODO
@@ -130,4 +132,7 @@ public class ComponentV2 implements Configurable {
     this.masterComponent = stack.isMasterComponent(this.type);
   }
 
+  public void setService(Service service) {
+    this.service = service;
+  }
 }

http://git-wip-us.apache.org/repos/asf/ambari/blob/acab46dc/ambari-server/src/main/java/org/apache/ambari/server/topology/HostGroupV2.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/topology/HostGroupV2.java b/ambari-server/src/main/java/org/apache/ambari/server/topology/HostGroupV2.java
index 4745f59..8da24bd 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/topology/HostGroupV2.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/topology/HostGroupV2.java
@@ -104,10 +104,12 @@ public interface HostGroupV2 {
   Collection<ServiceId> getServiceIds();
 
   /**
-   * @return collection of service ids associated with the host group components.
+   * @return collection of services associated with the host group components.
    */
   Collection<Service> getServices();
 
+  Service getService(ServiceId serviceId);
+
   /**
    * @return collection of service names associated with the host group components.
    */
@@ -124,11 +126,6 @@ public interface HostGroupV2 {
   Configuration getConfiguration();
 
   /**
-   * List of services
-   */
-  Collection<Service> getServiceConfigs();
-
-  /**
    * Get the cardinality value that was specified for the host group.
    * This is simply meta-data for the stack that a deployer can use
    * and this information is not used by ambari.

http://git-wip-us.apache.org/repos/asf/ambari/blob/acab46dc/ambari-server/src/main/java/org/apache/ambari/server/topology/HostGroupV2Impl.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/topology/HostGroupV2Impl.java b/ambari-server/src/main/java/org/apache/ambari/server/topology/HostGroupV2Impl.java
index ca19df3..2c9d1dd 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/topology/HostGroupV2Impl.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/topology/HostGroupV2Impl.java
@@ -19,6 +19,7 @@ package org.apache.ambari.server.topology;
 
 import java.util.Collection;
 import java.util.List;
+import java.util.Map;
 import java.util.stream.Collectors;
 
 import javax.annotation.Nullable;
@@ -27,9 +28,11 @@ import org.apache.ambari.server.controller.internal.ProvisionAction;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.google.common.base.Function;
+import com.google.common.base.Preconditions;
 import com.google.common.base.Predicates;
 import com.google.common.collect.Collections2;
 import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Lists;
 
 public class HostGroupV2Impl implements HostGroupV2, Configurable {
@@ -37,10 +40,12 @@ public class HostGroupV2Impl implements HostGroupV2, Configurable {
   private String name;
   private String blueprintName;
   private List<ComponentV2> components;
-  private List<ServiceId> services;
+  private List<ServiceId> serviceIds;
   private Configuration configuration;
   private String cardinality;
   private boolean containsMasterComponent;
+  @JsonIgnore
+  private Map<ServiceId, Service> serviceMap;
 
   public HostGroupV2Impl() { }
 
@@ -84,8 +89,8 @@ public class HostGroupV2Impl implements HostGroupV2, Configurable {
   }
 
   @Override
-  public Collection<ComponentV2> getComponents(Service serviceId) {
-    return null;
+  public Collection<ComponentV2> getComponents(Service service) {
+    return getComponentsByServiceId(service.getId());
   }
 
   @Override
@@ -100,29 +105,37 @@ public class HostGroupV2Impl implements HostGroupV2, Configurable {
 
   @Override
   public Collection<ServiceId> getServiceIds() {
-    return services;
+    return serviceIds;
   }
 
   @Override
   @JsonIgnore
   public Collection<Service> getServices() {
-    return null;
+    return serviceMap.values();
   }
 
   @Override
   @JsonIgnore
-  public Collection<String> getServiceNames() {
-    return services.stream().map(s -> s.getName()).collect(Collectors.toList());
+  public Service getService(ServiceId serviceId) {
+    return serviceMap.get(serviceId);
   }
 
   @Override
-  public Configuration getConfiguration() {
-    return configuration;
+  @JsonIgnore
+  public Collection<String> getServiceNames() {
+    return serviceMap.values().stream().map(s -> s.getName()).collect(Collectors.toList());
+  }
+
+  @JsonIgnore
+  public void setServiceMap(Map<ServiceId, Service> serviceMap) {
+    Preconditions.checkArgument(serviceMap.keySet().equals(ImmutableSet.copyOf(this.serviceIds)),
+      "Maitained list of service ids doesn't match with received service map: %s vs %s", serviceIds, serviceMap.keySet());
+    this.serviceMap = serviceMap;
   }
 
   @Override
-  public Collection<Service> getServiceConfigs() {
-    return null;
+  public Configuration getConfiguration() {
+    return configuration;
   }
 
   @Override
@@ -141,7 +154,7 @@ public class HostGroupV2Impl implements HostGroupV2, Configurable {
   public void setComponents(List<ComponentV2> components) {
     this.components = components;
     this.containsMasterComponent = components.stream().anyMatch(c -> c.isMasterComponent());
-    this.services = components.stream().map(c -> c.getServiceId()).collect(Collectors.toList());
+    this.serviceIds = components.stream().map(c -> c.getServiceId()).collect(Collectors.toList());
   }
 
   public void setConfiguration(Configuration configuration) {

http://git-wip-us.apache.org/repos/asf/ambari/blob/acab46dc/ambari-server/src/main/java/org/apache/ambari/server/topology/Service.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/topology/Service.java b/ambari-server/src/main/java/org/apache/ambari/server/topology/Service.java
index 81f235c..46c75c5 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/topology/Service.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/topology/Service.java
@@ -19,11 +19,17 @@
 package org.apache.ambari.server.topology;
 
 
+import java.util.Map;
 import java.util.Set;
 
 import org.apache.ambari.server.controller.StackV2;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+
 
 public class Service implements Configurable {
 
@@ -35,7 +41,16 @@ public class Service implements Configurable {
 
   private Configuration configuration;
 
-  private Set<ServiceId> dependencies;
+  private Set<ServiceId> dependencies = ImmutableSet.of();
+
+  @JsonIgnore
+  private Map<ServiceId, Service> dependencyMap = ImmutableMap.of();
+
+  @JsonIgnore
+  private ServiceGroup serviceGroup;
+
+  @JsonIgnore
+  private StackV2 stack;
 
   /**
    * Gets the name of this service
@@ -50,9 +65,8 @@ public class Service implements Configurable {
     return this.id.getServiceGroup();
   }
 
-  //TODO
   public ServiceGroup getServiceGroup() {
-    return null;
+    return serviceGroup;
   }
 
   public String getType() {
@@ -63,35 +77,36 @@ public class Service implements Configurable {
     return stackId;
   }
 
-  //TODO
   public StackV2 getStack() {
-    return null;
+    return stack;
   }
 
   public Set<ServiceId> getDependentServiceIds() {
     return dependencies;
   }
 
-  //TODO
   public Set<Service> getDependencies() {
-    return null;
+    return ImmutableSet.copyOf(dependencyMap.values());
   }
 
   public Configuration getConfiguration() {
     return configuration;
   }
 
-
   public void setType(String type) {
     this.type = type;
+    if (null == this.getName()) {
+      setName(type);
+    }
   }
 
   public void setName(String name) {
     this.id.setName(name);
   }
 
-  public void setServiceGroup(String serviceGroup) {
-    this.id.setServiceGroup(serviceGroup);
+  public void setServiceGroup(ServiceGroup serviceGroup) {
+    this.serviceGroup = serviceGroup;
+    this.id.setServiceGroup(serviceGroup.getName());
   }
 
   @JsonProperty("stack_id")
@@ -99,6 +114,10 @@ public class Service implements Configurable {
     this.stackId = stackId;
   }
 
+  public void setStackFromBlueprint(BlueprintV2 blueprint) {
+    this.stack = blueprint.getStackById(this.stackId);
+  }
+
   public void setConfiguration(Configuration configuration) {
     this.configuration = configuration;
   }
@@ -107,8 +126,27 @@ public class Service implements Configurable {
     this.dependencies = dependencies;
   }
 
+  /**
+   * Called during post-deserialization
+   * @param dependencyMap
+   */
+  void setDependencyMap(Map<ServiceId, Service> dependencyMap) {
+    Preconditions.checkArgument(dependencyMap.keySet().equals(dependencies),
+      "Received dependency map is not consisted with persisted dependency references: %s vs. %s",
+      dependencyMap.keySet(), dependencies);
+    this.dependencyMap = dependencyMap;
+  }
+
   public ServiceId getId() {
     return id;
   }
 
+  @Override
+  public String toString() {
+    return "Service{" +
+      "type='" + type + '\'' +
+      ", id=" + id +
+      ", stackId='" + stackId + '\'' +
+      '}';
+  }
 }

http://git-wip-us.apache.org/repos/asf/ambari/blob/acab46dc/ambari-server/src/main/java/org/apache/ambari/server/topology/ServiceGroup.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/topology/ServiceGroup.java b/ambari-server/src/main/java/org/apache/ambari/server/topology/ServiceGroup.java
index 13967c0..7f38b2c 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/topology/ServiceGroup.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/topology/ServiceGroup.java
@@ -18,17 +18,22 @@
 
 package org.apache.ambari.server.topology;
 
-
-import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
 import java.util.Set;
+import java.util.stream.Collectors;
+
+import com.google.common.collect.ListMultimap;
+import com.google.common.collect.Multimaps;
 
 public class ServiceGroup {
 
   private String name = null;
 
-  private Collection<Service> services = new ArrayList<>();
+  private Map<String, Service> servicesByName;
+  private ListMultimap<String, Service> servicesByType;
 
   private Configuration configuration = null;
 
@@ -46,7 +51,15 @@ public class ServiceGroup {
   }
 
   public Collection<Service> getServices() {
-    return services;
+    return servicesByName.values();
+  }
+
+  public Service getServiceByName(String name) {
+    return servicesByName.get(name);
+  }
+
+  public List<Service> getServiceByType(String name) {
+    return servicesByType.get(name);
   }
 
   public Configuration getConfiguration() {
@@ -57,14 +70,15 @@ public class ServiceGroup {
     return dependencies;
   }
 
-
   public void setName(String name) {
     this.name = name;
   }
 
   public void setServices(Collection<Service> services) {
-    this.services = services;
-    services.forEach(s -> s.setServiceGroup(this.name));
+    services.forEach(s -> s.setServiceGroup(this));
+    this.servicesByName = services.stream().collect(Collectors.toMap(Service::getName, s -> s));
+    this.servicesByType = Multimaps.index(services, Service::getType);
+    services.forEach(s -> s.setServiceGroup(this));
   }
 
   public void setConfiguration(Configuration configuration) {

http://git-wip-us.apache.org/repos/asf/ambari/blob/acab46dc/ambari-server/src/main/java/org/apache/ambari/server/topology/ServiceId.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/topology/ServiceId.java b/ambari-server/src/main/java/org/apache/ambari/server/topology/ServiceId.java
index 669e031..2d81a07 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/topology/ServiceId.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/topology/ServiceId.java
@@ -23,6 +23,8 @@ public class ServiceId {
   private String serviceGroup;
   private String name;
 
+  public ServiceId() { }
+
   public static ServiceId of(String name, String serviceGroup) {
     ServiceId id = new ServiceId();
     id.name = name;
@@ -66,4 +68,12 @@ public class ServiceId {
     result = 31 * result + (name != null ? name.hashCode() : 0);
     return result;
   }
+
+  @Override
+  public String toString() {
+    return "ServiceId{" +
+      "serviceGroup='" + serviceGroup + '\'' +
+      ", name='" + name + '\'' +
+      '}';
+  }
 }

http://git-wip-us.apache.org/repos/asf/ambari/blob/acab46dc/ambari-server/src/main/java/org/apache/ambari/server/topology/Setting.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/topology/Setting.java b/ambari-server/src/main/java/org/apache/ambari/server/topology/Setting.java
index 904c784..34542e1 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/topology/Setting.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/topology/Setting.java
@@ -20,8 +20,14 @@ package org.apache.ambari.server.topology;
 
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
+import java.util.Objects;
+import java.util.Optional;
 import java.util.Set;
+import java.util.stream.Collectors;
+
+import com.google.common.base.Preconditions;
 
 public class Setting {
   /**
@@ -95,7 +101,17 @@ public class Setting {
     if (properties.containsKey(settingName)) {
       return properties.get(settingName);
     }
-
     return Collections.emptySet();
   }
+
+  public Optional<String> getSettingValue(String settingCategory, String propertyName) {
+    List<String> values = getSettingValue(settingCategory).stream().
+      flatMap(sv -> sv.entrySet().stream()).
+      filter(entry -> Objects.equals(entry.getKey(), propertyName)).
+      map(entry -> entry.getValue()).
+      collect(Collectors.toList());
+    Preconditions.checkState(values.size() < 2, "Ambigous settings (%s) for category %s, property %s",
+      values.size(), settingCategory, settingCategory);
+    return values.isEmpty() ? Optional.empty() : Optional.of(values.get(0));
+  }
 }

http://git-wip-us.apache.org/repos/asf/ambari/blob/acab46dc/ambari-server/src/test/java/org/apache/ambari/server/topology/validators/BlueprintImplV2Test.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/test/java/org/apache/ambari/server/topology/validators/BlueprintImplV2Test.java b/ambari-server/src/test/java/org/apache/ambari/server/topology/validators/BlueprintImplV2Test.java
index 6b98b77..3bcf31b 100644
--- a/ambari-server/src/test/java/org/apache/ambari/server/topology/validators/BlueprintImplV2Test.java
+++ b/ambari-server/src/test/java/org/apache/ambari/server/topology/validators/BlueprintImplV2Test.java
@@ -20,6 +20,8 @@ package org.apache.ambari.server.topology.validators;
 import java.util.HashMap;
 import java.util.Map;
 
+import org.apache.ambari.server.controller.StackV2;
+import org.apache.ambari.server.state.StackId;
 import org.apache.ambari.server.topology.BlueprintImplV2;
 import org.apache.ambari.server.topology.HostGroupV2;
 import org.apache.ambari.server.topology.HostGroupV2Impl;
@@ -32,6 +34,7 @@ import com.fasterxml.jackson.databind.SerializationFeature;
 import com.fasterxml.jackson.databind.module.SimpleAbstractTypeResolver;
 import com.fasterxml.jackson.databind.module.SimpleModule;
 import com.google.common.base.Charsets;
+import com.google.common.collect.ImmutableMap;
 import com.google.common.io.Resources;
 
 public class BlueprintImplV2Test {
@@ -53,6 +56,14 @@ public class BlueprintImplV2Test {
     mapper.registerModule(module);
     mapper.enable(SerializationFeature.INDENT_OUTPUT);
     BlueprintImplV2 bp = mapper.readValue(BLUEPRINT_V2_JSON, BlueprintImplV2.class);
+    bp.postDeserialization();
+    // -- add stack --
+    StackV2 hdpCore = new StackV2("HDPCORE", "3.0.0", "3.0.0.0-1", new HashMap<>(), new HashMap<>(), new HashMap<>(),
+      new HashMap<>(), new HashMap<>(), new HashMap<>(), new HashMap<>(), new HashMap<>());
+    StackV2 analytics = new StackV2("ANALYTICS", "1.0.0", "1.0.0.0-1", new HashMap<>(), new HashMap<>(), new HashMap<>(),
+      new HashMap<>(), new HashMap<>(), new HashMap<>(), new HashMap<>(), new HashMap<>());
+    bp.setStacks(ImmutableMap.of(new StackId("HDPCORE", "3.0.0"), hdpCore, new StackId("ANALYTICS", "1.0.0"), analytics));
+    // ---------------
     String bpJson = mapper.writeValueAsString(bp);
     System.out.println(bpJson);
     System.out.println("\n\n====================================================================================\n\n");

http://git-wip-us.apache.org/repos/asf/ambari/blob/acab46dc/ambari-server/src/test/resources/blueprintv2/blueprintv2.json
----------------------------------------------------------------------
diff --git a/ambari-server/src/test/resources/blueprintv2/blueprintv2.json b/ambari-server/src/test/resources/blueprintv2/blueprintv2.json
index 7884abf..b6b4e8d 100644
--- a/ambari-server/src/test/resources/blueprintv2/blueprintv2.json
+++ b/ambari-server/src/test/resources/blueprintv2/blueprintv2.json
@@ -25,7 +25,7 @@
   ],
   "service_groups": [
     {
-      "name": "Core SG",
+      "name": "CoreSG",
       "dependencies": [],
       "services": [
         {
@@ -88,7 +88,7 @@
           "stack_id": "HDPCORE-3.0.0"
         }
       ],
-      "dependencies": ["Core SG"]
+      "dependencies": ["CoreSG"]
     }
   ],
   "host_groups": [
@@ -100,50 +100,44 @@
         {
           "type": "NAMENODE",
           "service_name": "HDFS",
-          "service_group": "Core SG",
+          "service_group": "CoreSG",
           "configurations": [],
           "provision_action": "INSTALL_AND_START"
         },
         {
           "type": "ZOOKEEPER_SERVER",
           "service_name": "ZK1",
-          "service_group": "Core SG",
+          "service_group": "CoreSG",
           "configurations": []
         },
         {
           "type": "ZOOKEEPER_SERVER",
           "service_name": "ZK2",
-          "service_group": "Core SG",
+          "service_group": "CoreSG",
           "configurations": []
         },
         {
           "type": "RESOURCEMANAGER",
           "service_name": "YARN",
-          "service_group": "Core SG",
+          "service_group": "CoreSG",
           "configurations": []
         },
         {
           "type": "HBASE_MASTER",
           "service_name": "HBASE",
-          "service_group": "Core SG",
-          "configurations": []
-        },
-        {
-          "type": "ZOOKEEPER_SERVER",
-          "service_name": "ZOOKEEPER",
-          "service_group": "Stream SG",
+          "service_group": "CoreSG",
           "configurations": []
         },
         {
           "type": "KAFKA_MASTER",
           "service_name": "KAFKA",
-          "service_group": "Stream SG",
+          "service_group": "StreamSG",
           "configurations": []
         },
         {
           "type": "NIFI_MASTER",
           "service_name": "NIFI",
-          "service_group": "Stream SG",
+          "service_group": "StreamSG",
           "configurations": []
         }
       ]