/*******************************************************************************
* Copyright (c) 2011 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tm.te.runtime.stepper.internal.extensions;
import java.util.Map;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.tm.te.runtime.extensions.AbstractExtensionPointManager;
import org.eclipse.tm.te.runtime.extensions.ExecutableExtensionProxy;
import org.eclipse.tm.te.runtime.stepper.interfaces.IContextStepGroup;
/**
* Step group extension manager implementation.
*/
public class StepGroupExtensionPointManager extends AbstractExtensionPointManager<IContextStepGroup> {
/* (non-Javadoc)
* @see org.eclipse.tm.te.runtime.extensions.AbstractExtensionPointManager#getExtensionPointId()
*/
@Override
protected String getExtensionPointId() {
return "org.eclipse.tm.te.runtime.stepper.stepGroups"; //$NON-NLS-1$
}
/* (non-Javadoc)
* @see org.eclipse.tm.te.runtime.extensions.AbstractExtensionPointManager#getConfigurationElementName()
*/
@Override
protected String getConfigurationElementName() {
return "stepGroup"; //$NON-NLS-1$
}
/* (non-Javadoc)
* @see org.eclipse.tm.te.runtime.extensions.AbstractExtensionPointManager#doCreateExtensionProxy(org.eclipse.core.runtime.IConfigurationElement)
*/
@Override
protected ExecutableExtensionProxy<IContextStepGroup> doCreateExtensionProxy(IConfigurationElement element) throws CoreException {
return new StepGroupExtensionProxy(element);
}
/**
* Returns the step group identified by its unique id. If no step group with the specified id is
* registered, <code>null</code> is returned.
*
* @param id The step group unique id. Must not be <code>null</code>
* @param unique If <code>true</code>, the method returns new instances of the step group contribution.
*
* @return The step group instance or <code>null</code>.
*/
public IContextStepGroup getStepGroup(String id, boolean unique) {
Assert.isNotNull(id);
IContextStepGroup contribution = null;
if (getExtensions().containsKey(id)) {
ExecutableExtensionProxy<IContextStepGroup> proxy = getExtensions().get(id);
// Get the extension instance
contribution = unique ? proxy.newInstance() : proxy.getInstance();
}
return contribution;
}
/* (non-Javadoc)
* @see org.eclipse.tm.te.runtime.extensions.AbstractExtensionPointManager#doStoreExtensionTo(java.util.Map, org.eclipse.tm.te.runtime.extensions.ExecutableExtensionProxy, org.eclipse.core.runtime.IConfigurationElement)
*/
@Override
protected void doStoreExtensionTo(Map<String, ExecutableExtensionProxy<IContextStepGroup>> extensions, ExecutableExtensionProxy<IContextStepGroup> candidate, IConfigurationElement element) throws CoreException {
Assert.isNotNull(extensions);
Assert.isNotNull(candidate);
Assert.isNotNull(element);
// If no extension with this id had been registered before, register now.
if (!extensions.containsKey(candidate.getId())) {
extensions.put(candidate.getId(), candidate);
}
else if (extensions.get(candidate.getId()) instanceof StepGroupExtensionProxy) {
StepGroupExtensionProxy proxy = (StepGroupExtensionProxy)extensions.get(candidate.getId());
proxy.addGroupExtension(element);
}
else {
super.doStoreExtensionTo(extensions, candidate, element);
}
}
}