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/***************************************************************************************************
* Copyright (c) 2005 Eteration A.S. and Gorkem Ercan. 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: Gorkem Ercan - initial API and implementation
*
**************************************************************************************************/
package org.eclipse.jst.server.generic.internal.core.util;
import java.util.ArrayList;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtension;
import org.eclipse.core.runtime.IExtensionPoint;
import org.eclipse.core.runtime.IExtensionRegistry;
import org.eclipse.core.runtime.IRegistryChangeListener;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jst.server.generic.core.internal.CorePlugin;
/**
* Utilities for handling the extension points.
*
* @author Gorkem Ercan
*/
public class ExtensionPointUtil {
/**
* serverdefinition extension id
*/
public static final String SERVERDEFINITION_EXTENSION_ID = "serverdefinition"; //$NON-NLS-1$
public static final String RUNTIMEDEFINITION_EXTENSION_ID = "runtimedefinition"; //$NON-NLS-1$
private static final String GENERICPUBLISHER_EXTENSION_ID = "genericpublisher"; //$NON-NLS-1$
private static final String EXTENSION_SERVER_TYPE = "serverTypes";//$NON-NLS-1$
/**
* Returns serverdefinition extensions
* @return serverdefinition Extensions
*/
public static IExtension[] getGenericServerDefinitionExtensions(){
return getExtensions(CorePlugin.PLUGIN_ID+"."+SERVERDEFINITION_EXTENSION_ID); //$NON-NLS-1$
}
/**
* Returns runtimedefinition extensions
* @return runtimedefinition Extensions
*/
public static IExtension[] getGenericServerRuntimeDefinitionExtensions(){
return getExtensions(CorePlugin.PLUGIN_ID+"."+RUNTIMEDEFINITION_EXTENSION_ID); //$NON-NLS-1$
}
/**
* Returns publisher extensions
* @return genericpublisher extensions
*/
public static IExtension[] getGenericPublisherExtension(){
return getExtensions(CorePlugin.PLUGIN_ID+"."+GENERICPUBLISHER_EXTENSION_ID); //$NON-NLS-1$
}
private static IExtension[] getExtensions(String extensionId){
IExtensionPoint extensionPoint=getExtensionPoint(extensionId);
IExtension[] extensions = extensionPoint.getExtensions();
return extensions;
}
private static IExtensionPoint getExtensionPoint(String id)
{
IExtensionRegistry registry = Platform.getExtensionRegistry();
IExtensionPoint extensionPoint= registry.getExtensionPoint(id);
return extensionPoint;
}
/**
* Returns the configuration elements
*
* @param extension
* @return configurationElements
*/
public static IConfigurationElement[] getConfigurationElements(IExtension extension){
return extension!=null?extension.getConfigurationElements():null;
}
/**
* Add listener to extension registry.
* @param listener
*/
public static void addRegistryListener(IRegistryChangeListener listener){
IExtensionRegistry registry = Platform.getExtensionRegistry();
registry.addRegistryChangeListener(listener, CorePlugin.PLUGIN_ID);
}
/**
* Retrieves the list of servers with the given launch configuration ID.
* Returns an empty array if there is none.
* @param launchConfigId
* @return
*/
public static String[] getServerTypesFromLaunchConfig(String launchConfigId){
IExtensionRegistry registry = Platform.getExtensionRegistry();
IConfigurationElement[] cf = registry.getConfigurationElementsFor("org.eclipse.wst.server.core", EXTENSION_SERVER_TYPE); //$NON-NLS-1$
ArrayList list = new ArrayList();
for( int i = 0; i < cf.length; i++ )
{
String id = cf[i].getAttribute( "launchConfigId" ); //$NON-NLS-1$
if (id != null && id.equals( launchConfigId ))
{
list.add( cf[i].getAttribute( "id" ) ); //$NON-NLS-1$
}
};
return (String[])list.toArray(new String[list.size()]);
}
}
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