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Posted to commits@atlas.apache.org by ma...@apache.org on 2018/10/24 23:09:40 UTC

atlas git commit: ATLAS-2934: utility to detect and repair incorrect entity state

Repository: atlas
Updated Branches:
  refs/heads/branch-0.8 2a547434b -> 8f99ffedf


ATLAS-2934: utility to detect and repair incorrect entity state


Project: http://git-wip-us.apache.org/repos/asf/atlas/repo
Commit: http://git-wip-us.apache.org/repos/asf/atlas/commit/8f99ffed
Tree: http://git-wip-us.apache.org/repos/asf/atlas/tree/8f99ffed
Diff: http://git-wip-us.apache.org/repos/asf/atlas/diff/8f99ffed

Branch: refs/heads/branch-0.8
Commit: 8f99ffedfb9f8b87b4142167cb9e26ebb13f232c
Parents: 2a54743
Author: Madhan Neethiraj <ma...@apache.org>
Authored: Tue Oct 23 09:16:26 2018 -0700
Committer: Madhan Neethiraj <ma...@apache.org>
Committed: Wed Oct 24 16:01:28 2018 -0700

----------------------------------------------------------------------
 .../model/instance/AtlasCheckStateRequest.java  | 100 ++++++
 .../model/instance/AtlasCheckStateResult.java   | 257 +++++++++++++++
 .../store/graph/AtlasEntityStore.java           |  10 +
 .../store/graph/v1/AtlasEntityStoreV1.java      |  26 ++
 .../store/graph/v1/EntityGraphRetriever.java    |  59 ++--
 .../store/graph/v1/EntityStateChecker.java      | 323 +++++++++++++++++++
 .../atlas/web/resources/AdminResource.java      |  62 ++--
 .../atlas/web/resources/AdminResourceTest.java  |   4 +-
 8 files changed, 802 insertions(+), 39 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/atlas/blob/8f99ffed/intg/src/main/java/org/apache/atlas/model/instance/AtlasCheckStateRequest.java
----------------------------------------------------------------------
diff --git a/intg/src/main/java/org/apache/atlas/model/instance/AtlasCheckStateRequest.java b/intg/src/main/java/org/apache/atlas/model/instance/AtlasCheckStateRequest.java
new file mode 100644
index 0000000..3184746
--- /dev/null
+++ b/intg/src/main/java/org/apache/atlas/model/instance/AtlasCheckStateRequest.java
@@ -0,0 +1,100 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "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
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.atlas.model.instance;
+
+import org.apache.atlas.model.typedef.AtlasBaseTypeDef;
+import org.codehaus.jackson.annotate.JsonAutoDetect;
+import org.codehaus.jackson.annotate.JsonIgnoreProperties;
+import org.codehaus.jackson.map.annotate.JsonSerialize;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import java.io.Serializable;
+import java.util.Set;
+
+import static org.codehaus.jackson.annotate.JsonAutoDetect.Visibility.NONE;
+import static org.codehaus.jackson.annotate.JsonAutoDetect.Visibility.PUBLIC_ONLY;
+
+
+/**
+ * Request to run state-check of entities
+ */
+@JsonAutoDetect(getterVisibility=PUBLIC_ONLY, setterVisibility=PUBLIC_ONLY, fieldVisibility=NONE)
+@JsonSerialize(include=JsonSerialize.Inclusion.NON_NULL)
+@JsonIgnoreProperties(ignoreUnknown=true)
+@XmlRootElement
+@XmlAccessorType(XmlAccessType.PROPERTY)
+public class AtlasCheckStateRequest implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    private Set<String> entityGuids;
+    private Set<String> entityTypes;
+    private boolean     fixIssues;
+
+
+    public AtlasCheckStateRequest() {
+    }
+
+    public Set<String> getEntityGuids() {
+        return entityGuids;
+    }
+
+    public void setEntityGuids(Set<String> entityGuids) {
+        this.entityGuids = entityGuids;
+    }
+
+    public Set<String> getEntityTypes() {
+        return entityTypes;
+    }
+
+    public void setEntityTypes(Set<String> entityTypes) {
+        this.entityTypes = entityTypes;
+    }
+
+    public boolean getFixIssues() {
+        return fixIssues;
+    }
+
+    public void setFixIssues(boolean fixIssues) {
+        this.fixIssues = fixIssues;
+    }
+
+
+    public StringBuilder toString(StringBuilder sb) {
+        if (sb == null) {
+            sb = new StringBuilder();
+        }
+
+        sb.append("AtlasCheckStateRequest{");
+        sb.append("entityGuids=[");
+        AtlasBaseTypeDef.dumpObjects(entityGuids, sb);
+        sb.append("], entityTypes=[");
+        AtlasBaseTypeDef.dumpObjects(entityTypes, sb);
+        sb.append("]");
+        sb.append(", fixIssues=").append(fixIssues);
+        sb.append("}");
+
+        return sb;
+    }
+
+    @Override
+    public String toString() {
+        return toString(new StringBuilder()).toString();
+    }
+}

http://git-wip-us.apache.org/repos/asf/atlas/blob/8f99ffed/intg/src/main/java/org/apache/atlas/model/instance/AtlasCheckStateResult.java
----------------------------------------------------------------------
diff --git a/intg/src/main/java/org/apache/atlas/model/instance/AtlasCheckStateResult.java b/intg/src/main/java/org/apache/atlas/model/instance/AtlasCheckStateResult.java
new file mode 100644
index 0000000..503225a
--- /dev/null
+++ b/intg/src/main/java/org/apache/atlas/model/instance/AtlasCheckStateResult.java
@@ -0,0 +1,257 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "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
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.atlas.model.instance;
+
+import org.apache.atlas.model.typedef.AtlasBaseTypeDef;
+import org.codehaus.jackson.annotate.JsonAutoDetect;
+import org.codehaus.jackson.annotate.JsonIgnoreProperties;
+import org.codehaus.jackson.map.annotate.JsonSerialize;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import java.io.Serializable;
+import java.util.List;
+import java.util.Map;
+
+import static org.codehaus.jackson.annotate.JsonAutoDetect.Visibility.NONE;
+import static org.codehaus.jackson.annotate.JsonAutoDetect.Visibility.PUBLIC_ONLY;
+
+
+/**
+ * Result of Atlas state check run.
+ */
+@JsonAutoDetect(getterVisibility=PUBLIC_ONLY, setterVisibility=PUBLIC_ONLY, fieldVisibility=NONE)
+@JsonSerialize(include=JsonSerialize.Inclusion.NON_NULL)
+@JsonIgnoreProperties(ignoreUnknown=true)
+@XmlRootElement
+@XmlAccessorType(XmlAccessType.PROPERTY)
+public class AtlasCheckStateResult implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    public enum State { OK, FIXED, PARTIALLY_FIXED, NOT_FIXED}
+
+    private int                           entitiesScanned        = 0;
+    private int                           entitiesOk             = 0;
+    private int                           entitiesFixed          = 0;
+    private int                           entitiesPartiallyFixed = 0;
+    private int                           entitiesNotFixed       = 0;
+    private State                         state                  = State.OK;
+    private Map<String, AtlasEntityState> entities               = null;
+
+
+    public AtlasCheckStateResult() {
+    }
+
+    public int getEntitiesScanned() {
+        return entitiesScanned;
+    }
+
+    public void setEntitiesScanned(int entitiesScanned) {
+        this.entitiesScanned = entitiesScanned;
+    }
+
+    public void incrEntitiesScanned() { entitiesScanned++; }
+
+    public int getEntitiesOk() {
+        return entitiesOk;
+    }
+
+    public void setEntitiesOk(int entitiesOk) {
+        this.entitiesOk = entitiesOk;
+    }
+
+    public void incrEntitiesOk() { entitiesOk++; }
+
+    public int getEntitiesFixed() {
+        return entitiesFixed;
+    }
+
+    public void setEntitiesFixed(int entitiesFixed) {
+        this.entitiesFixed = entitiesFixed;
+    }
+
+    public void incrEntitiesFixed() { entitiesFixed++; }
+
+    public int getEntitiesPartiallyFixed() {
+        return entitiesPartiallyFixed;
+    }
+
+    public void setEntitiesPartiallyFixed(int entitiesPartiallyFixed) {
+        this.entitiesPartiallyFixed = entitiesPartiallyFixed;
+    }
+
+    public void incrEntitiesPartiallyFixed() { entitiesPartiallyFixed++; }
+
+    public int getEntitiesNotFixed() {
+        return entitiesNotFixed;
+    }
+
+    public void setEntitiesNotFixed(int entitiesNotFixed) {
+        this.entitiesNotFixed = entitiesNotFixed;
+    }
+
+    public void incrEntitiesNotFixed() { entitiesNotFixed++; }
+
+    public State getState() {
+        return state;
+    }
+
+    public void setState(State state) {
+        this.state = state;
+    }
+
+    public Map<String, AtlasEntityState> getEntities() {
+        return entities;
+    }
+
+    public void setEntities(Map<String, AtlasEntityState> entities) {
+        this.entities = entities;
+    }
+
+    public StringBuilder toString(StringBuilder sb) {
+        if (sb == null) {
+            sb = new StringBuilder();
+        }
+
+        sb.append("AtlasCheckStateResult{");
+        sb.append("entitiesScanned='").append(entitiesScanned);
+        sb.append(", entitiesFixed=").append(entitiesFixed);
+        sb.append(", entitiesPartiallyFixed=").append(entitiesPartiallyFixed);
+        sb.append(", entitiesNotFixed=").append(entitiesNotFixed);
+        sb.append(", state=").append(state);
+
+        sb.append("entities=[");
+        if (entities != null) {
+            boolean isFirst = true;
+            for (Map.Entry<String, AtlasEntityState> entry : entities.entrySet()) {
+                if (isFirst) {
+                    isFirst = false;
+                } else {
+                    sb.append(",");
+                }
+
+                sb.append(entry.getKey()).append(":");
+                entry.getValue().toString(sb);
+            }
+        }
+        sb.append("]");
+
+        sb.append("}");
+
+        return sb;
+    }
+
+    @Override
+    public String toString() {
+        return toString(new StringBuilder()).toString();
+    }
+
+    @JsonAutoDetect(getterVisibility=PUBLIC_ONLY, setterVisibility=PUBLIC_ONLY, fieldVisibility=NONE)
+    @JsonSerialize(include=JsonSerialize.Inclusion.NON_NULL)
+    @JsonIgnoreProperties(ignoreUnknown=true)
+    @XmlRootElement
+    @XmlAccessorType(XmlAccessType.PROPERTY)
+    public static class AtlasEntityState implements Serializable {
+        private static final long serialVersionUID = 1L;
+
+        private String             guid;
+        private String             typeName;
+        private String             name;
+        private AtlasEntity.Status status;
+        private State              state = State.OK;
+        private List<String>       issues;
+
+
+        public AtlasEntityState() {
+        }
+
+        public String getGuid() {
+            return guid;
+        }
+
+        public void setGuid(String guid) {
+            this.guid = guid;
+        }
+
+        public String getTypeName() {
+            return typeName;
+        }
+
+        public void setTypeName(String typeName) {
+            this.typeName = typeName;
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        public void setName(String name) {
+            this.name = name;
+        }
+
+        public AtlasEntity.Status getStatus() {
+            return status;
+        }
+
+        public void setStatus(AtlasEntity.Status status) {
+            this.status = status;
+        }
+
+
+        public State getState() {
+            return state;
+        }
+
+        public void setState(State state) {
+            this.state = state;
+        }
+
+        public List<String> getIssues() {
+            return issues;
+        }
+
+        public void setIssues(List<String> issues) {
+            this.issues = issues;
+        }
+
+        public StringBuilder toString(StringBuilder sb) {
+            if (sb == null) {
+                sb = new StringBuilder();
+            }
+
+            sb.append("AtlasEntityState{");
+            sb.append("guid=").append(guid);
+            sb.append(", typeName=").append(typeName);
+            sb.append(", name=").append(name);
+            sb.append(", status=").append(status);
+            sb.append(", state=").append(state);
+            sb.append(", issues=[");
+            AtlasBaseTypeDef.dumpObjects(issues, sb);
+            sb.append("]");
+            sb.append("}");
+
+            return sb;
+        }
+
+        @Override
+        public String toString() {
+            return toString(new StringBuilder()).toString();
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/atlas/blob/8f99ffed/repository/src/main/java/org/apache/atlas/repository/store/graph/AtlasEntityStore.java
----------------------------------------------------------------------
diff --git a/repository/src/main/java/org/apache/atlas/repository/store/graph/AtlasEntityStore.java b/repository/src/main/java/org/apache/atlas/repository/store/graph/AtlasEntityStore.java
index 6a1a88f..fc84421 100644
--- a/repository/src/main/java/org/apache/atlas/repository/store/graph/AtlasEntityStore.java
+++ b/repository/src/main/java/org/apache/atlas/repository/store/graph/AtlasEntityStore.java
@@ -18,6 +18,8 @@
 package org.apache.atlas.repository.store.graph;
 
 import org.apache.atlas.exception.AtlasBaseException;
+import org.apache.atlas.model.instance.AtlasCheckStateRequest;
+import org.apache.atlas.model.instance.AtlasCheckStateResult;
 import org.apache.atlas.model.instance.AtlasClassification;
 import org.apache.atlas.model.instance.AtlasEntity.AtlasEntitiesWithExtInfo;
 import org.apache.atlas.model.instance.AtlasEntity.AtlasEntityWithExtInfo;
@@ -98,6 +100,14 @@ public interface AtlasEntityStore {
             throws AtlasBaseException;
 
     /**
+     * Check state of entities in the store
+     * @param request AtlasCheckStateRequest
+     * @return AtlasCheckStateResult
+     * @throws AtlasBaseException
+     */
+    AtlasCheckStateResult checkState(AtlasCheckStateRequest request) throws AtlasBaseException;
+
+    /**
      * Create or update  entities in the stream
      * @param entityStream AtlasEntityStream
      * @return EntityMutationResponse Entity mutations operations with the corresponding set of entities on which these operations were performed

http://git-wip-us.apache.org/repos/asf/atlas/blob/8f99ffed/repository/src/main/java/org/apache/atlas/repository/store/graph/v1/AtlasEntityStoreV1.java
----------------------------------------------------------------------
diff --git a/repository/src/main/java/org/apache/atlas/repository/store/graph/v1/AtlasEntityStoreV1.java b/repository/src/main/java/org/apache/atlas/repository/store/graph/v1/AtlasEntityStoreV1.java
index 449a958..5df9295 100644
--- a/repository/src/main/java/org/apache/atlas/repository/store/graph/v1/AtlasEntityStoreV1.java
+++ b/repository/src/main/java/org/apache/atlas/repository/store/graph/v1/AtlasEntityStoreV1.java
@@ -23,6 +23,8 @@ import org.apache.atlas.GraphTransactionInterceptor;
 import org.apache.atlas.RequestContextV1;
 import org.apache.atlas.annotation.GraphTransaction;
 import org.apache.atlas.exception.AtlasBaseException;
+import org.apache.atlas.model.instance.AtlasCheckStateRequest;
+import org.apache.atlas.model.instance.AtlasCheckStateResult;
 import org.apache.atlas.model.instance.AtlasClassification;
 import org.apache.atlas.model.instance.AtlasEntity;
 import org.apache.atlas.model.instance.AtlasEntity.AtlasEntitiesWithExtInfo;
@@ -183,6 +185,30 @@ public class AtlasEntityStoreV1 implements AtlasEntityStore {
         return ret;
     }
 
+    /**
+     * Check state of entities in the store
+     * @param request AtlasCheckStateRequest
+     * @return AtlasCheckStateResult
+     * @throws AtlasBaseException
+     */
+    @Override
+    @GraphTransaction
+    public AtlasCheckStateResult checkState(AtlasCheckStateRequest request) throws AtlasBaseException {
+        if (LOG.isDebugEnabled()) {
+            LOG.debug("==> checkState({})", request);
+        }
+
+        EntityStateChecker entityStateChecker = new EntityStateChecker(typeRegistry);
+
+        AtlasCheckStateResult ret = entityStateChecker.checkState(request);
+
+        if (LOG.isDebugEnabled()) {
+            LOG.debug("<== checkState({}, {})", request, ret);
+        }
+
+        return ret;
+    }
+
     private EntityMutationResponse createOrUpdate(EntityStream entityStream, boolean isPartialUpdate, boolean replaceClassifications) throws AtlasBaseException {
         if (LOG.isDebugEnabled()) {
             LOG.debug("==> createOrUpdate()");

http://git-wip-us.apache.org/repos/asf/atlas/blob/8f99ffed/repository/src/main/java/org/apache/atlas/repository/store/graph/v1/EntityGraphRetriever.java
----------------------------------------------------------------------
diff --git a/repository/src/main/java/org/apache/atlas/repository/store/graph/v1/EntityGraphRetriever.java b/repository/src/main/java/org/apache/atlas/repository/store/graph/v1/EntityGraphRetriever.java
index 0445e27..549e595 100644
--- a/repository/src/main/java/org/apache/atlas/repository/store/graph/v1/EntityGraphRetriever.java
+++ b/repository/src/main/java/org/apache/atlas/repository/store/graph/v1/EntityGraphRetriever.java
@@ -42,6 +42,7 @@ import org.apache.atlas.type.AtlasType;
 import org.apache.atlas.type.AtlasTypeRegistry;
 import org.apache.atlas.type.AtlasTypeUtil;
 import org.apache.commons.collections.CollectionUtils;
+import org.apache.commons.collections.MapUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -158,6 +159,28 @@ public final class EntityGraphRetriever {
         return ret;
     }
 
+    public Map<String, Object> getEntityUniqueAttribute(AtlasVertex entityVertex) throws AtlasBaseException {
+        Map<String, Object> ret        = null;
+        String              typeName   = AtlasGraphUtilsV1.getTypeName(entityVertex);
+        AtlasEntityType     entityType = typeRegistry.getEntityTypeByName(typeName);
+
+        if (entityType != null && MapUtils.isNotEmpty(entityType.getUniqAttributes())) {
+            for (AtlasAttribute attribute : entityType.getUniqAttributes().values()) {
+                Object val = mapVertexToAttribute(entityVertex, attribute, null, false);
+
+                if (val != null) {
+                    if (ret == null) {
+                        ret = new HashMap<>();
+                    }
+
+                    ret.put(attribute.getName(), val);
+                }
+            }
+        }
+
+        return ret;
+    }
+
     private AtlasVertex getEntityVertex(AtlasObjectId objId) throws AtlasBaseException {
         AtlasVertex ret = null;
 
@@ -377,6 +400,24 @@ public final class EntityGraphRetriever {
         return classifications.get(0);
     }
 
+    public AtlasClassification getClassification(AtlasVertex instanceVertex, String classificationName) throws AtlasBaseException {
+
+        AtlasClassification ret = null;
+        if (LOG.isDebugEnabled()) {
+            LOG.debug("mapping classification {} to atlas entity", classificationName);
+        }
+
+        Iterable<AtlasEdge> edges = instanceVertex.getEdges(AtlasEdgeDirection.OUT, classificationName);
+        AtlasEdge           edge  = (edges != null && edges.iterator().hasNext()) ? edges.iterator().next() : null;
+
+        if (edge != null) {
+            ret = new AtlasClassification(classificationName);
+            mapAttributes(edge.getInVertex(), ret, null);
+        }
+
+        return ret;
+    }
+
 
     private List<AtlasClassification> getClassifications(AtlasVertex instanceVertex, String classificationNameFilter) throws AtlasBaseException {
         List<AtlasClassification> classifications = new ArrayList<>();
@@ -406,24 +447,6 @@ public final class EntityGraphRetriever {
         return classifications;
     }
 
-    private AtlasClassification getClassification(AtlasVertex instanceVertex, String classificationName) throws AtlasBaseException {
-
-        AtlasClassification ret = null;
-        if (LOG.isDebugEnabled()) {
-            LOG.debug("mapping classification {} to atlas entity", classificationName);
-        }
-
-        Iterable<AtlasEdge> edges = instanceVertex.getEdges(AtlasEdgeDirection.OUT, classificationName);
-        AtlasEdge           edge  = (edges != null && edges.iterator().hasNext()) ? edges.iterator().next() : null;
-
-        if (edge != null) {
-            ret = new AtlasClassification(classificationName);
-            mapAttributes(edge.getInVertex(), ret, null);
-        }
-
-        return ret;
-    }
-
     private void mapClassifications(AtlasVertex entityVertex, AtlasEntity entity) throws AtlasBaseException {
         final List<AtlasClassification> classifications = getClassifications(entityVertex, null);
         entity.setClassifications(classifications);

http://git-wip-us.apache.org/repos/asf/atlas/blob/8f99ffed/repository/src/main/java/org/apache/atlas/repository/store/graph/v1/EntityStateChecker.java
----------------------------------------------------------------------
diff --git a/repository/src/main/java/org/apache/atlas/repository/store/graph/v1/EntityStateChecker.java b/repository/src/main/java/org/apache/atlas/repository/store/graph/v1/EntityStateChecker.java
new file mode 100644
index 0000000..3f87f56
--- /dev/null
+++ b/repository/src/main/java/org/apache/atlas/repository/store/graph/v1/EntityStateChecker.java
@@ -0,0 +1,323 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "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
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.atlas.repository.store.graph.v1;
+
+import org.apache.atlas.AtlasErrorCode;
+import org.apache.atlas.RequestContextV1;
+import org.apache.atlas.exception.AtlasBaseException;
+import org.apache.atlas.model.instance.AtlasCheckStateRequest;
+import org.apache.atlas.model.instance.AtlasCheckStateResult;
+import org.apache.atlas.model.instance.AtlasCheckStateResult.AtlasEntityState;
+import org.apache.atlas.repository.Constants;
+import org.apache.atlas.repository.graph.AtlasGraphProvider;
+import org.apache.atlas.repository.graph.GraphHelper;
+import org.apache.atlas.repository.graphdb.AtlasEdge;
+import org.apache.atlas.repository.graphdb.AtlasEdgeDirection;
+import org.apache.atlas.repository.graphdb.AtlasGraphQuery;
+import org.apache.atlas.repository.graphdb.AtlasVertex;
+import org.apache.atlas.type.AtlasClassificationType;
+import org.apache.atlas.type.AtlasEntityType;
+import org.apache.atlas.type.AtlasTypeRegistry;
+import org.apache.commons.collections.CollectionUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+
+import javax.inject.Inject;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+@Component
+public final class EntityStateChecker {
+    private static final Logger LOG = LoggerFactory.getLogger(EntityStateChecker.class);
+
+    private final AtlasTypeRegistry    typeRegistry;
+    private final EntityGraphRetriever entityRetriever;
+
+    @Inject
+    public EntityStateChecker(AtlasTypeRegistry typeRegistry) {
+        this.typeRegistry    = typeRegistry;
+        this.entityRetriever = new EntityGraphRetriever(typeRegistry);
+    }
+
+
+    public AtlasCheckStateResult checkState(AtlasCheckStateRequest request) throws AtlasBaseException {
+        if (LOG.isDebugEnabled()) {
+            LOG.debug("==> checkState({})", request);
+        }
+
+        AtlasCheckStateResult ret = new AtlasCheckStateResult();
+
+        if (request != null) {
+            if (CollectionUtils.isNotEmpty(request.getEntityGuids())) {
+                for (String guid : request.getEntityGuids()) {
+                    checkEntityState(guid, request.getFixIssues(), ret);
+                }
+            } else if (CollectionUtils.isNotEmpty(request.getEntityTypes())) {
+                final Collection<String> entityTypes;
+
+                if (request.getEntityTypes().contains("*")) {
+                    entityTypes = typeRegistry.getAllEntityDefNames();
+                } else {
+                    entityTypes = request.getEntityTypes();
+                }
+
+                LOG.info("checkState(): scanning for entities of {} types", entityTypes.size());
+
+                for (String typeName : entityTypes) {
+                    AtlasEntityType entityType = typeRegistry.getEntityTypeByName(typeName);
+
+                    if (entityType == null) {
+                        LOG.warn("checkState(): {} - entity-type not found", typeName);
+
+                        continue;
+                    }
+
+                    LOG.info("checkState(): scanning for {} entities", typeName);
+
+                    AtlasGraphQuery query = AtlasGraphProvider.getGraphInstance().query().has(Constants.ENTITY_TYPE_PROPERTY_KEY, typeName);
+
+                    int count = 0;
+                    for (Iterator<AtlasVertex> iter = query.vertices().iterator(); iter.hasNext(); count++) {
+                        checkEntityState(iter.next(), request.getFixIssues(), ret);
+                    }
+
+                    LOG.info("checkState(): scanned {} {} entities", count, typeName);
+                }
+            }
+
+            int incorrectFixed          = ret.getEntitiesFixed();
+            int incorrectPartiallyFixed = ret.getEntitiesPartiallyFixed();
+            int incorrectNotFixed       = ret.getEntitiesNotFixed();
+
+            if (incorrectFixed == 0 && incorrectPartiallyFixed == 0 && incorrectNotFixed == 0) {
+                ret.setState(AtlasCheckStateResult.State.OK);
+            } else if (incorrectPartiallyFixed != 0) {
+                ret.setState(AtlasCheckStateResult.State.PARTIALLY_FIXED);
+            } else if (incorrectNotFixed != 0) {
+                ret.setState(incorrectFixed > 0 ? AtlasCheckStateResult.State.PARTIALLY_FIXED : AtlasCheckStateResult.State.NOT_FIXED);
+            } else {
+                ret.setState(AtlasCheckStateResult.State.FIXED);
+            }
+        }
+
+        if (LOG.isDebugEnabled()) {
+            LOG.debug("<== checkState({}, {})", request, ret);
+        }
+
+        return ret;
+    }
+
+
+    /**
+     * Check an entity state given its GUID
+     * @param guid
+     * @return
+     * @throws AtlasBaseException
+     */
+    public AtlasEntityState checkEntityState(String guid, boolean fixIssues, AtlasCheckStateResult result) throws AtlasBaseException {
+        AtlasVertex entityVertex = AtlasGraphUtilsV1.findByGuid(guid);
+
+        if (entityVertex == null) {
+            throw new AtlasBaseException(AtlasErrorCode.INSTANCE_GUID_NOT_FOUND, guid);
+        }
+
+        return checkEntityState(entityVertex, fixIssues, result);
+    }
+
+    /**
+     * Check an entity state given its vertex
+     * @param entityVertex
+     * @return
+     * @throws AtlasBaseException
+     */
+    public AtlasEntityState checkEntityState(AtlasVertex entityVertex, boolean fixIssues, AtlasCheckStateResult result) throws AtlasBaseException {
+        if (LOG.isDebugEnabled()) {
+            LOG.debug("==> checkEntityState(guid={})", AtlasGraphUtilsV1.getIdFromVertex(entityVertex));
+        }
+
+        AtlasEntityState ret = new AtlasEntityState();
+
+        ret.setGuid(AtlasGraphUtilsV1.getIdFromVertex(entityVertex));
+        ret.setTypeName(AtlasGraphUtilsV1.getTypeName(entityVertex));
+        ret.setName(getEntityName(entityVertex));
+        ret.setStatus(AtlasGraphUtilsV1.getState(entityVertex));
+        ret.setState(AtlasCheckStateResult.State.OK);
+
+        checkEntityState_Classifications(entityVertex, ret, fixIssues);
+
+        if (ret.getState() != AtlasCheckStateResult.State.OK) { // don't include clean entities in the response
+            if (result.getEntities() == null) {
+                result.setEntities(new HashMap<String, AtlasEntityState>());
+            }
+
+            result.getEntities().put(ret.getGuid(), ret);
+        }
+
+        result.incrEntitiesScanned();
+
+        switch (ret.getState()) {
+            case FIXED:
+                result.incrEntitiesFixed();
+                break;
+
+            case PARTIALLY_FIXED:
+                result.incrEntitiesPartiallyFixed();
+                break;
+
+            case NOT_FIXED:
+                result.incrEntitiesNotFixed();
+                break;
+
+            case OK:
+                result.incrEntitiesOk();
+                break;
+        }
+
+        LOG.info("checkEntityState(guid={}; type={}; name={}): {}", ret.getGuid(), ret.getTypeName(), ret.getName(), ret.getState());
+
+        if (LOG.isDebugEnabled()) {
+            LOG.debug("<== checkEntityState({}): {}", ret.getGuid(), ret);
+        }
+
+        return ret;
+    }
+
+    private void checkEntityState_Classifications(AtlasVertex entityVertex, AtlasEntityState result, boolean fixIssues) {
+        if (LOG.isDebugEnabled()) {
+            LOG.debug("==> checkEntityState_Classifications({}, {})", result, fixIssues);
+        }
+
+        List<String>        traitNames       = GraphHelper.getTraitNames(entityVertex);
+        List<String>        traitVertexNames = null;
+        Iterable<AtlasEdge> edges            = entityVertex.getEdges(AtlasEdgeDirection.OUT);
+
+        if (edges != null) {
+            for (Iterator<AtlasEdge> iter = edges.iterator(); iter.hasNext(); ) {
+                AtlasEdge edge               = iter.next();
+                String    edgeLabel          = edge.getLabel();
+                String    classificationName = GraphHelper.getTypeName(edge.getInVertex());
+
+                // classification edge name is same as the name of the classification
+                if (StringUtils.equals(edgeLabel, classificationName)) {
+                    AtlasClassificationType classification = typeRegistry.getClassificationTypeByName(classificationName);
+
+                    if (classification != null) {
+                        if (traitVertexNames == null) {
+                            traitVertexNames = new ArrayList<>();
+                        }
+
+                        traitVertexNames.add(classificationName);
+                    }
+                }
+            }
+        }
+
+        List<String> traitNamesToRemove = null;
+        List<String> traitNamesToAdd    = null;
+
+        if (traitNames != null) {
+            for (String traitName : traitNames) {
+                if (traitVertexNames == null || !traitVertexNames.contains(traitName)) {
+                    if (traitNamesToRemove == null) {
+                        traitNamesToRemove = new ArrayList<>();
+                    }
+
+                    traitNamesToRemove.add(traitName);
+                }
+            }
+        }
+
+        if (traitVertexNames != null) {
+            for (String traitVertexName : traitVertexNames) {
+                if (traitNames == null || !traitNames.contains(traitVertexName)) {
+                    if (traitNamesToAdd == null) {
+                        traitNamesToAdd = new ArrayList<>();
+                    }
+
+                    traitNamesToAdd.add(traitVertexName);
+                }
+            }
+        }
+
+        if (traitNamesToAdd != null || traitNamesToRemove != null) {
+            List<String> issues = result.getIssues();
+
+            if (issues == null) {
+                issues = new ArrayList<>();
+            }
+
+            if (traitNamesToAdd != null) {
+                issues.add("incorrect property: __traitNames has missing classifications: " + traitNamesToAdd.toString());
+            }
+
+            if (traitNamesToRemove != null) {
+                issues.add("incorrect property: __traitNames has unassigned classifications: " + traitNamesToRemove.toString());
+            }
+
+            if (fixIssues) {
+                entityVertex.removeProperty(Constants.TRAIT_NAMES_PROPERTY_KEY);
+
+                for (String classificationName : traitVertexNames) {
+                    AtlasGraphUtilsV1.addEncodedProperty(entityVertex, Constants.TRAIT_NAMES_PROPERTY_KEY, classificationName);
+                }
+
+                AtlasGraphUtilsV1.setEncodedProperty(entityVertex, Constants.MODIFICATION_TIMESTAMP_PROPERTY_KEY, RequestContextV1.get().getRequestTime());
+
+                result.setState(AtlasCheckStateResult.State.FIXED);
+            } else {
+                result.setState(AtlasCheckStateResult.State.NOT_FIXED);
+            }
+
+            result.setIssues(issues);
+        }
+
+        if (LOG.isDebugEnabled()) {
+            LOG.debug("<== checkEntityState_Classifications({}, {})", result, fixIssues);
+        }
+    }
+
+    private String getEntityName(AtlasVertex entityVertex) throws AtlasBaseException {
+        String              ret              = null;
+        Map<String, Object> uniqueAttributes = entityRetriever.getEntityUniqueAttribute(entityVertex);
+
+        if (uniqueAttributes != null) {
+            Object val = uniqueAttributes.get("qualifiedName");
+
+            if (val == null) {
+                for (Object attrVal : uniqueAttributes.values()) {
+                    if (attrVal != null) {
+                        ret = attrVal.toString();
+
+                        break;
+                    }
+                }
+            } else {
+                ret = val.toString();
+            }
+        }
+
+        return ret;
+    }
+}
+

http://git-wip-us.apache.org/repos/asf/atlas/blob/8f99ffed/webapp/src/main/java/org/apache/atlas/web/resources/AdminResource.java
----------------------------------------------------------------------
diff --git a/webapp/src/main/java/org/apache/atlas/web/resources/AdminResource.java b/webapp/src/main/java/org/apache/atlas/web/resources/AdminResource.java
index b53ac69..9069f44 100755
--- a/webapp/src/main/java/org/apache/atlas/web/resources/AdminResource.java
+++ b/webapp/src/main/java/org/apache/atlas/web/resources/AdminResource.java
@@ -34,6 +34,8 @@ import org.apache.atlas.model.impexp.AtlasExportResult;
 import org.apache.atlas.model.impexp.AtlasImportRequest;
 import org.apache.atlas.model.impexp.AtlasImportResult;
 import org.apache.atlas.model.impexp.ExportImportAuditEntry;
+import org.apache.atlas.model.instance.AtlasCheckStateRequest;
+import org.apache.atlas.model.instance.AtlasCheckStateResult;
 import org.apache.atlas.model.metrics.AtlasMetrics;
 import org.apache.atlas.repository.impexp.AtlasServerService;
 import org.apache.atlas.repository.impexp.ExportImportAuditService;
@@ -41,6 +43,7 @@ import org.apache.atlas.repository.impexp.ExportService;
 import org.apache.atlas.repository.impexp.ImportService;
 import org.apache.atlas.repository.impexp.ZipSink;
 import org.apache.atlas.repository.impexp.ZipSource;
+import org.apache.atlas.repository.store.graph.AtlasEntityStore;
 import org.apache.atlas.services.MetricsService;
 import org.apache.atlas.type.AtlasType;
 import org.apache.atlas.util.SearchTracker;
@@ -116,14 +119,15 @@ public class AdminResource {
     private static final String DEFAULT_EDITABLE_ENTITY_TYPES = "hdfs_path,hbase_table,hbase_column,hbase_column_family,kafka_topic";
     private Response version;
 
-    private final ServiceState      serviceState;
-    private final MetricsService    metricsService;
-    private static Configuration atlasProperties;
-    private final ExportService exportService;
-    private final ImportService importService;
-    private final SearchTracker activeSearches;
-    private AtlasServerService  atlasServerService;
-    private ExportImportAuditService exportImportAuditService;
+    private final ServiceState             serviceState;
+    private final MetricsService           metricsService;
+    private static Configuration           atlasProperties;
+    private final ExportService            exportService;
+    private final ImportService            importService;
+    private final SearchTracker            activeSearches;
+    private final AtlasServerService       atlasServerService;
+    private final ExportImportAuditService exportImportAuditService;
+    private final AtlasEntityStore         entityStore;
 
     static {
         try {
@@ -134,17 +138,17 @@ public class AdminResource {
     }
 
     @Inject
-    public AdminResource(ServiceState serviceState, MetricsService metricsService,
-                         ExportService exportService, ImportService importService, SearchTracker activeSearches,
-                         AtlasServerService serverService,
-                         ExportImportAuditService exportImportAuditService) {
-        this.serviceState               = serviceState;
-        this.metricsService             = metricsService;
-        this.exportService = exportService;
-        this.importService = importService;
-        this.activeSearches = activeSearches;
-        this.atlasServerService = serverService;
-        this.exportImportAuditService = exportImportAuditService;
+    public AdminResource(ServiceState serviceState, MetricsService metricsService, ExportService exportService,
+                         ImportService importService, SearchTracker activeSearches, AtlasServerService serverService,
+                         ExportImportAuditService exportImportAuditService, AtlasEntityStore entityStore) {
+        this.serviceState              = serviceState;
+        this.metricsService            = metricsService;
+        this.exportService             = exportService;
+        this.importService             = importService;
+        this.activeSearches            = activeSearches;
+        this.atlasServerService        = serverService;
+        this.exportImportAuditService  = exportImportAuditService;
+        this.entityStore               = entityStore;
         this.importExportOperationLock = new ReentrantLock();
     }
 
@@ -519,6 +523,26 @@ public class AdminResource {
         return null != terminate;
     }
 
+    @POST
+    @Path("checkstate")
+    @Produces(Servlets.JSON_MEDIA_TYPE)
+    @Consumes(Servlets.JSON_MEDIA_TYPE)
+    public AtlasCheckStateResult checkState(AtlasCheckStateRequest request) throws AtlasBaseException {
+        AtlasPerfTracer perf = null;
+
+        try {
+            if (AtlasPerfTracer.isPerfTraceEnabled(PERF_LOG)) {
+                perf = AtlasPerfTracer.getPerfTracer(PERF_LOG, "checkState(" + request + ")");
+            }
+
+            AtlasCheckStateResult ret = entityStore.checkState(request);
+
+            return ret;
+        } finally {
+            AtlasPerfTracer.log(perf);
+        }
+    }
+
     private String getEditableEntityTypes(Configuration config) {
         String ret = DEFAULT_EDITABLE_ENTITY_TYPES;
 

http://git-wip-us.apache.org/repos/asf/atlas/blob/8f99ffed/webapp/src/test/java/org/apache/atlas/web/resources/AdminResourceTest.java
----------------------------------------------------------------------
diff --git a/webapp/src/test/java/org/apache/atlas/web/resources/AdminResourceTest.java b/webapp/src/test/java/org/apache/atlas/web/resources/AdminResourceTest.java
index 2f4b3d9..bdfe9e0 100644
--- a/webapp/src/test/java/org/apache/atlas/web/resources/AdminResourceTest.java
+++ b/webapp/src/test/java/org/apache/atlas/web/resources/AdminResourceTest.java
@@ -48,7 +48,7 @@ public class AdminResourceTest {
 
         when(serviceState.getState()).thenReturn(ServiceState.ServiceStateValue.ACTIVE);
 
-        AdminResource adminResource = new AdminResource(serviceState, null, null, null, null, null, null);
+        AdminResource adminResource = new AdminResource(serviceState, null, null, null, null, null, null, null);
         Response response = adminResource.getStatus();
         assertEquals(response.getStatus(), HttpServletResponse.SC_OK);
         JSONObject entity = (JSONObject) response.getEntity();
@@ -59,7 +59,7 @@ public class AdminResourceTest {
     public void testResourceGetsValueFromServiceState() throws JSONException {
         when(serviceState.getState()).thenReturn(ServiceState.ServiceStateValue.PASSIVE);
 
-        AdminResource adminResource = new AdminResource(serviceState, null, null, null, null, null, null);
+        AdminResource adminResource = new AdminResource(serviceState, null, null, null, null, null, null, null);
         Response response = adminResource.getStatus();
 
         verify(serviceState).getState();