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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* 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:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.plugin.core.util;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.logging.Level;
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.Platform;
import org.eclipse.core.runtime.Plugin;
import org.eclipse.osee.framework.logging.OseeLog;
import org.eclipse.osee.framework.plugin.core.internal.PluginCoreActivator;
import org.osgi.framework.Bundle;
/**
* Use ExtensionDefinedObjects if possible
*
* @author Ryan D. Brooks
*/
public class ExtensionPoints {
public static List<IConfigurationElement> getExtensionElements(Plugin plugin, String extensionPointName, String elementName) {
Bundle bundle = plugin.getBundle();
return getExtensionElements(bundle.getSymbolicName() + "." + extensionPointName, elementName);
}
public static List<IConfigurationElement> getExtensionElements(String extensionPointId, String elementName) {
IExtensionRegistry extensionRegistry = Platform.getExtensionRegistry();
if (extensionRegistry == null) {
throw new IllegalStateException("The extension registry is unavailable");
}
IExtensionPoint point = extensionRegistry.getExtensionPoint(extensionPointId);
if (point == null) {
throw new IllegalArgumentException("The extension point " + extensionPointId + " does not exist");
}
IExtension[] extensions = point.getExtensions();
ArrayList<IConfigurationElement> elementsList = new ArrayList<IConfigurationElement>(extensions.length * 3);
for (IExtension extension : extensions) {
IConfigurationElement[] elements = extension.getConfigurationElements();
for (IConfigurationElement element : elements) {
if (element.getName().equalsIgnoreCase(elementName)) {
elementsList.add(element);
}
}
}
return elementsList;
}
/**
* Return extension point unique ids if type extensionPointId
*
* @param extensionPointId <plugin>.Point Id
* @param extensionPointUniqueIds array of unique ids
*/
public static List<IExtension> getExtensionsByUniqueId(String extensionPointId, Collection<String> extensionPointUniqueIds) {
List<IExtension> extensions = new ArrayList<IExtension>();
for (String entensionPointUniqueId : extensionPointUniqueIds) {
IExtension extension = Platform.getExtensionRegistry().getExtension(entensionPointUniqueId);
if (extension == null) {
OseeLog.log(PluginCoreActivator.class, Level.SEVERE,
"Unable to locate extension [" + entensionPointUniqueId + "]");
} else {
String thisPointId = extension.getExtensionPointUniqueIdentifier();
if (extensionPointId.equals(thisPointId)) {
extensions.add(extension);
} else {
OseeLog.log(PluginCoreActivator.class, Level.SEVERE,
"Unknown extension id [" + thisPointId + "] from extension [" + entensionPointUniqueId + "]");
}
}
}
return extensions;
}
public static List<String> getExtensionsPointUniqueIds(String extensionPointId) {
List<String> extensionPointIds = new ArrayList<String>();
IExtensionPoint point = Platform.getExtensionRegistry().getExtensionPoint(extensionPointId);
if (point == null) {
throw new IllegalArgumentException("The extension point " + extensionPointId + " does not exist");
}
IExtension[] extensions = point.getExtensions();
for (IExtension extension : extensions) {
extensionPointIds.add(extension.getUniqueIdentifier());
}
return extensionPointIds;
}
public static IConfigurationElement getExtensionElement(String extensionPointId, String elementName) {
List<IConfigurationElement> elements = ExtensionPoints.getExtensionElements(extensionPointId, elementName);
if (elements.isEmpty()) {
throw new IllegalArgumentException(
"no elements named " + elementName + " for " + extensionPointId + " where found.");
}
if (elements.size() > 1) {
throw new IllegalArgumentException(
elements.size() + " elements named " + elementName + " for " + extensionPointId + " where found. Expected exactly one.");
}
return elements.get(0);
}
}
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