| /* |
| * 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.netbeans.modules.j2ee.deployment.impl; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Set; |
| import javax.enterprise.deploy.spi.DeploymentManager; |
| import javax.enterprise.deploy.spi.Target; |
| import javax.enterprise.deploy.spi.exceptions.DeploymentManagerCreationException; |
| import javax.enterprise.deploy.spi.factories.DeploymentFactory; |
| import javax.swing.event.ChangeEvent; |
| import javax.swing.event.ChangeListener; |
| import org.openide.util.Exceptions; |
| import org.openide.util.Lookup; |
| import org.openide.util.LookupEvent; |
| import org.openide.util.LookupListener; |
| import org.openide.util.lookup.Lookups; |
| |
| /** |
| * |
| * @author Petr Hejl |
| */ |
| public class ServerInstanceLookup extends Lookup { |
| |
| private final ServerInstance instance; |
| |
| private final DeploymentFactory factory; |
| |
| private final Target target; |
| |
| public ServerInstanceLookup(ServerInstance instance, |
| DeploymentFactory factory, Target target) { |
| |
| assert instance != null; |
| assert factory != null; |
| |
| this.instance = instance; |
| this.factory = factory; |
| this.target = target; |
| } |
| |
| @Override |
| public <T> T lookup(Class<T> clazz) { |
| if (DeploymentFactory.class.isAssignableFrom(clazz)) { |
| return clazz.cast(factory); |
| } else if (DeploymentManager.class.isAssignableFrom(clazz)) { |
| if (instance.isConnected()) { |
| return clazz.cast(instance.getDeploymentManager()); |
| } |
| try { |
| return clazz.cast(instance.getDisconnectedDeploymentManager()); |
| } catch (DeploymentManagerCreationException dmce) { |
| Exceptions.printStackTrace(dmce); |
| } |
| } else if (target != null && Target.class.isAssignableFrom(clazz)) { |
| return clazz.cast(target); |
| } |
| return null; |
| } |
| |
| @Override |
| public <T> Lookup.Result<T> lookup(Lookup.Template<T> template) { |
| if (DeploymentFactory.class.isAssignableFrom(template.getType())) { |
| return new SimpleResult(factory); |
| } else if (DeploymentManager.class.isAssignableFrom(template.getType())) { |
| return (Lookup.Result<T>) new DeploymentManagerResult(instance); |
| } else if (Target.class.isAssignableFrom(template.getType())) { |
| return new SimpleResult(target); |
| } |
| |
| return new EmptyResult(); |
| } |
| |
| private static final class EmptyResult<T> extends Lookup.Result<T> { |
| |
| @Override |
| public void addLookupListener(LookupListener l) { |
| } |
| |
| @Override |
| public void removeLookupListener(LookupListener l) { |
| } |
| |
| @Override |
| public Collection<? extends T> allInstances() { |
| return Collections.emptyList(); |
| } |
| } |
| |
| private abstract static class AbstractResult<T> extends Lookup.Result<T> { |
| |
| public AbstractResult() { |
| super(); |
| } |
| |
| public abstract T getInstance(); |
| |
| @Override |
| public synchronized Collection<? extends T> allInstances() { |
| T instance = getInstance(); |
| if (instance == null) { |
| return Collections.emptyList(); |
| } |
| return Collections.singletonList(instance); |
| } |
| |
| @Override |
| public synchronized Set<Class<? extends T>> allClasses() { |
| T instance = getInstance(); |
| if (instance == null) { |
| return Collections.emptySet(); |
| } |
| Class<T> clazz = (Class<T>) instance.getClass(); |
| return Collections.<Class<? extends T>>singleton(clazz); |
| } |
| |
| @Override |
| public synchronized Collection<? extends Item<T>> allItems() { |
| T instance = getInstance(); |
| if (instance == null) { |
| return Collections.emptyList(); |
| } |
| return Collections.singletonList(Lookups.lookupItem(instance, null)); |
| } |
| } |
| |
| private static class SimpleResult<T> extends AbstractResult<T> { |
| |
| private final T instance; |
| |
| public SimpleResult(T instance) { |
| this.instance = instance; |
| } |
| |
| @Override |
| public void addLookupListener(LookupListener l) { |
| } |
| |
| @Override |
| public void removeLookupListener(LookupListener l) { |
| } |
| |
| @Override |
| public T getInstance() { |
| return instance; |
| } |
| } |
| |
| private static class DeploymentManagerResult extends AbstractResult<DeploymentManager> implements ChangeListener { |
| |
| private final ServerInstance instance; |
| |
| private final List<LookupListener> listeners = new ArrayList<LookupListener>(); |
| |
| public DeploymentManagerResult(ServerInstance instance) { |
| this.instance = instance; |
| } |
| |
| @Override |
| public void addLookupListener(LookupListener l) { |
| if (l == null) { |
| return; |
| } |
| synchronized (listeners) { |
| if (listeners.isEmpty()) { |
| instance.addManagerChangeListener(this); |
| } |
| listeners.add(l); |
| } |
| } |
| |
| @Override |
| public void removeLookupListener(LookupListener l) { |
| if (l == null) { |
| return; |
| } |
| synchronized (listeners) { |
| listeners.remove(l); |
| if (listeners.isEmpty()) { |
| instance.removeManagerChangeListener(this); |
| } |
| } |
| } |
| |
| // this can fire fake events in rare cases |
| public void stateChanged(ChangeEvent e) { |
| List<LookupListener> toFire = new ArrayList<LookupListener>(); |
| synchronized (listeners) { |
| toFire.addAll(listeners); |
| } |
| |
| for (LookupListener listener : toFire) { |
| listener.resultChanged(new LookupEvent(this)); |
| } |
| |
| } |
| |
| @Override |
| public DeploymentManager getInstance() { |
| if (instance.isConnected()) { |
| return instance.getDeploymentManager(); |
| } |
| try { |
| return instance.getDisconnectedDeploymentManager(); |
| } catch (DeploymentManagerCreationException ex) { |
| Exceptions.printStackTrace(ex); |
| } |
| return null; |
| } |
| } |
| } |