svn commit: r1574533 - /felix/sandbox/pderop/dependencymanager-prototype/dm/src/dm/impl/ComponentAdminImpl.java

[pd...@apache.org]

Author: pderop
Date: Wed Mar  5 15:38:43 2014
New Revision: 1574533

URL: http://svn.apache.org/r1574533
Log:
Introduced new ComponentAdmin service, which provides access to all dependency manager components

Added:
    felix/sandbox/pderop/dependencymanager-prototype/dm/src/dm/impl/ComponentAdminImpl.java

Added: felix/sandbox/pderop/dependencymanager-prototype/dm/src/dm/impl/ComponentAdminImpl.java
URL: http://svn.apache.org/viewvc/felix/sandbox/pderop/dependencymanager-prototype/dm/src/dm/impl/ComponentAdminImpl.java?rev=1574533&view=auto
==============================================================================
--- felix/sandbox/pderop/dependencymanager-prototype/dm/src/dm/impl/ComponentAdminImpl.java (added)
+++ felix/sandbox/pderop/dependencymanager-prototype/dm/src/dm/impl/ComponentAdminImpl.java Wed Mar  5 15:38:43 2014
@@ -0,0 +1,72 @@
+package dm.impl;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.Iterator;
+import java.util.List;
+
+import org.osgi.framework.Bundle;
+
+import dm.Component;
+import dm.DependencyManager;
+import dm.admin.ComponentAdmin;
+import dm.admin.ComponentDeclaration;
+
+public class ComponentAdminImpl implements ComponentAdmin {
+    /**
+     * Sorter used to sort components.
+     */
+    private static final DependencyManagerSorter SORTER = new DependencyManagerSorter();
+
+    private static class DependencyManagerSorter implements Comparator<DependencyManager> {
+        public int compare(DependencyManager dm1, DependencyManager dm2) {
+            long id1 = dm1.getBundleContext().getBundle().getBundleId();
+            long id2 = dm2.getBundleContext().getBundle().getBundleId();
+            return id1 > id2 ? 1 : -1;
+        }
+    }
+
+    @Override
+	public List<ComponentDeclaration> getComponents() {
+    	return getComponents(null, -1);
+	}
+
+	@Override
+	public ComponentDeclaration getComponent(long componentId) {
+    	List<ComponentDeclaration> result = getComponents(null, componentId);
+    	return result.size() > 0 ? result.get(0) : null;
+	}
+
+	@Override
+	public List<ComponentDeclaration> getComponents(Bundle bundle) {
+    	return getComponents(bundle);
+	}
+	
+	private List<ComponentDeclaration> getComponents(Bundle bundle, long componentId) {
+		List<ComponentDeclaration> result = new ArrayList();
+        List<DependencyManager> managers = DependencyManager.getDependencyManagers();
+        Collections.sort(managers, SORTER);
+        Iterator<DependencyManager> iterator = managers.iterator();
+        
+        while (iterator.hasNext()) {
+            DependencyManager manager = iterator.next();
+            List<Component> complist = manager.getComponents();
+            Iterator<Component> componentIterator = complist.iterator();
+            
+            while (componentIterator.hasNext()) {
+                Component component = componentIterator.next();
+                ComponentDeclaration sc = (ComponentDeclaration) component;
+                if (bundle != null && ! sc.getBundleContext().getBundle().equals(bundle)) {
+                	continue;
+                }
+                if (componentId != -1 && sc.getId() != componentId) {
+                	continue;
+                }
+                result.add(sc);
+            }
+        }
+        
+        return result;
+	}
+}