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/*
* 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.tuscany.sca.host.embedded.impl;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArrayList;
import org.apache.tuscany.sca.assembly.Component;
import org.apache.tuscany.sca.assembly.Composite;
import org.apache.tuscany.sca.core.assembly.ActivationException;
import org.apache.tuscany.sca.core.assembly.RuntimeComponentImpl;
import org.apache.tuscany.sca.host.embedded.management.ComponentListener;
import org.apache.tuscany.sca.host.embedded.management.ComponentManager;
/**
* Implementation of the ComponentManager.
*
* @version $Rev$ $Date$
*/
public class ComponentManagerImpl implements ComponentManager {
protected List<ComponentListener> listeners = new CopyOnWriteArrayList<ComponentListener>();
protected EmbeddedSCADomain domain;
public ComponentManagerImpl(EmbeddedSCADomain domain) {
this.domain = domain;
}
public void addComponentListener(ComponentListener listener) {
this.listeners.add(listener);
}
public void removeComponentListener(ComponentListener listener) {
this.listeners.remove(listener);
}
public Set<String> getComponentNames() {
Set<String> names = new HashSet<String>();
for (Composite composite: domain.getDomainComposite().getIncludes()) {
for (Component component: composite.getComponents()) {
names.add(component.getName());
}
}
return names;
}
public Component getComponent(String componentName) {
for (Composite composite: domain.getDomainComposite().getIncludes()) {
for (Component component: composite.getComponents()) {
if (component.getName().equals(componentName)) {
return component;
}
}
}
return null;
}
public void startComponent(String componentName) throws ActivationException {
Component component = getComponent(componentName);
if (component == null) {
throw new IllegalArgumentException("no component: " + componentName);
}
domain.getCompositeActivator().start(component);
notifyComponentStarted(componentName);
}
public void stopComponent(String componentName) throws ActivationException {
Component component = getComponent(componentName);
if (component == null) {
throw new IllegalArgumentException("no component: " + componentName);
}
domain.getCompositeActivator().stop(component);
notifyComponentStopped(componentName);
}
public void notifyComponentStarted(String componentName) {
for (ComponentListener listener : listeners) {
try {
listener.componentStarted(componentName);
} catch (Exception e) {
e.printStackTrace(); // TODO: log
}
}
}
public void notifyComponentStopped(String componentName) {
for (ComponentListener listener : listeners) {
try {
listener.componentStopped(componentName);
} catch (Exception e) {
e.printStackTrace(); // TODO: log
}
}
}
public boolean isComponentStarted(String componentName) {
RuntimeComponentImpl runtimeComponent = (RuntimeComponentImpl)getComponent(componentName);
return runtimeComponent.isStarted();
}
}
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