| /* |
| * Copyright (c) 2007-2009, 2011, 2012 Eike Stepper (Berlin, Germany) and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Eike Stepper - initial API and implementation |
| */ |
| package org.eclipse.net4j.internal.util.container; |
| |
| import org.eclipse.net4j.internal.util.bundle.OM; |
| import org.eclipse.net4j.util.container.IElementProcessor; |
| import org.eclipse.net4j.util.lifecycle.Lifecycle; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.ListIterator; |
| |
| /** |
| * @author Eike Stepper |
| */ |
| public class PluginElementProcessorList extends Lifecycle implements List<IElementProcessor> |
| { |
| private static final String ATTR_CLASS = "class"; //$NON-NLS-1$ |
| |
| public static final String NAMESPACE = OM.BUNDLE_ID; |
| |
| public static final String EXT_POINT = "elementProcessors"; //$NON-NLS-1$ |
| |
| private List<IElementProcessor> processors = new ArrayList<IElementProcessor>(); |
| |
| private Object extensionRegistryListener; |
| |
| public PluginElementProcessorList() |
| { |
| } |
| |
| public boolean add(IElementProcessor o) |
| { |
| return processors.add(o); |
| } |
| |
| public void add(int index, IElementProcessor element) |
| { |
| processors.add(index, element); |
| } |
| |
| public boolean addAll(Collection<? extends IElementProcessor> c) |
| { |
| return processors.addAll(c); |
| } |
| |
| public boolean addAll(int index, Collection<? extends IElementProcessor> c) |
| { |
| return processors.addAll(index, c); |
| } |
| |
| public void clear() |
| { |
| processors.clear(); |
| } |
| |
| public boolean contains(Object o) |
| { |
| return processors.contains(o); |
| } |
| |
| public boolean containsAll(Collection<?> c) |
| { |
| return processors.containsAll(c); |
| } |
| |
| @Override |
| public boolean equals(Object o) |
| { |
| return processors.equals(o); |
| } |
| |
| public IElementProcessor get(int index) |
| { |
| return processors.get(index); |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return processors.hashCode(); |
| } |
| |
| public int indexOf(Object o) |
| { |
| return processors.indexOf(o); |
| } |
| |
| public boolean isEmpty() |
| { |
| return processors.isEmpty(); |
| } |
| |
| public Iterator<IElementProcessor> iterator() |
| { |
| return processors.iterator(); |
| } |
| |
| public int lastIndexOf(Object o) |
| { |
| return processors.lastIndexOf(o); |
| } |
| |
| public ListIterator<IElementProcessor> listIterator() |
| { |
| return processors.listIterator(); |
| } |
| |
| public ListIterator<IElementProcessor> listIterator(int index) |
| { |
| return processors.listIterator(index); |
| } |
| |
| public IElementProcessor remove(int index) |
| { |
| return processors.remove(index); |
| } |
| |
| public boolean remove(Object o) |
| { |
| return processors.remove(o); |
| } |
| |
| public boolean removeAll(Collection<?> c) |
| { |
| return processors.removeAll(c); |
| } |
| |
| public boolean retainAll(Collection<?> c) |
| { |
| return processors.retainAll(c); |
| } |
| |
| public IElementProcessor set(int index, IElementProcessor element) |
| { |
| return processors.set(index, element); |
| } |
| |
| public int size() |
| { |
| return processors.size(); |
| } |
| |
| public List<IElementProcessor> subList(int fromIndex, int toIndex) |
| { |
| return processors.subList(fromIndex, toIndex); |
| } |
| |
| public Object[] toArray() |
| { |
| return processors.toArray(); |
| } |
| |
| public <T> T[] toArray(T[] a) |
| { |
| return processors.toArray(a); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return processors.toString(); |
| } |
| |
| @Override |
| protected void doActivate() throws Exception |
| { |
| super.doActivate(); |
| try |
| { |
| doActivateOSGi(); |
| } |
| catch (Throwable t) |
| { |
| OM.LOG.warn(t); |
| } |
| } |
| |
| @Override |
| protected void doDeactivate() throws Exception |
| { |
| try |
| { |
| doDeactivateOSGi(); |
| } |
| catch (Throwable t) |
| { |
| OM.LOG.warn(t); |
| } |
| |
| processors.clear(); |
| super.doDeactivate(); |
| } |
| |
| private void doActivateOSGi() throws Exception |
| { |
| org.eclipse.core.runtime.IExtensionRegistry extensionRegistry = org.eclipse.core.runtime.Platform |
| .getExtensionRegistry(); |
| if (extensionRegistry == null) |
| { |
| return; |
| } |
| |
| org.eclipse.core.runtime.IConfigurationElement[] elements = extensionRegistry.getConfigurationElementsFor(NAMESPACE, |
| EXT_POINT); |
| for (org.eclipse.core.runtime.IConfigurationElement element : elements) |
| { |
| IElementProcessor processor = (IElementProcessor)element.createExecutableExtension(ATTR_CLASS); |
| processors.add(processor); |
| } |
| |
| org.eclipse.core.runtime.IRegistryChangeListener listener = new org.eclipse.core.runtime.IRegistryChangeListener() |
| { |
| public void registryChanged(org.eclipse.core.runtime.IRegistryChangeEvent event) |
| { |
| org.eclipse.core.runtime.IExtensionDelta[] deltas = event.getExtensionDeltas(NAMESPACE, EXT_POINT); |
| for (org.eclipse.core.runtime.IExtensionDelta delta : deltas) |
| { |
| // TODO Handle ExtensionDelta |
| OM.LOG.warn("ExtensionDelta not handled: " + delta); //$NON-NLS-1$ |
| } |
| } |
| }; |
| |
| extensionRegistry.addRegistryChangeListener(listener, NAMESPACE); |
| extensionRegistryListener = listener; |
| } |
| |
| private void doDeactivateOSGi() |
| { |
| org.eclipse.core.runtime.IExtensionRegistry extensionRegistry = org.eclipse.core.runtime.Platform |
| .getExtensionRegistry(); |
| if (extensionRegistry == null) |
| { |
| return; |
| } |
| |
| extensionRegistry |
| .removeRegistryChangeListener((org.eclipse.core.runtime.IRegistryChangeListener)extensionRegistryListener); |
| } |
| } |