/*
* 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.karaf.eik.core;
import org.apache.karaf.eik.core.internal.KarafCorePluginActivator;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtension;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Platform;
import org.eclipse.pde.core.plugin.IPluginModelBase;
import org.eclipse.pde.core.plugin.PluginRegistry;
public final class KarafPlatformModelRegistry {
private static final String ATT_CLASS = "class";
private static final String TAG_PLATFORM_MODEL_ITEMTYPE = "model";
private static final String ATT_SYMBOLIC_NAME = "symbolicName";
private static final String TAG_TRIGGER_BUNDLE_ITEMTYPE = "triggerBundle";
/**
*
* @return
* @throws CoreException
*/
public static KarafPlatformModel findActivePlatformModel() throws CoreException {
final Map<String, IConfigurationElement> triggerBundleMap =
getTriggerBundlePlatformFactoryMap();
for (Map.Entry<String, IConfigurationElement> e : triggerBundleMap.entrySet()) {
final String symbolicName = e.getKey();
IPluginModelBase karafPlatformPlugin = PluginRegistry.findModel(symbolicName);
if (karafPlatformPlugin == null) {
continue;
}
final IConfigurationElement c = e.getValue();
final KarafPlatformModelFactory f =
(KarafPlatformModelFactory)c.createExecutableExtension(ATT_CLASS);
final KarafPlatformValidator validator = f.getPlatformValidator();
IPath modelPath = new Path(karafPlatformPlugin.getInstallLocation()).removeLastSegments(1);
while(!modelPath.isEmpty() && !modelPath.isRoot()) {
modelPath = modelPath.removeLastSegments(1);
if (validator.isValid(modelPath)) {
return f.getPlatformModel(modelPath);
}
}
}
return null;
}
/**
*
* @param path
* @return
* @throws CoreException
*/
public static KarafPlatformModel findPlatformModel(IPath path) throws CoreException {
final KarafPlatformModelFactory factory = findPlatformModelFactory(path);
if (factory == null) {
return null;
}
return factory.getPlatformModel(path);
}
/**
*
* @param path
* @return
*/
public static KarafPlatformModelFactory findPlatformModelFactory(IPath path) throws CoreException {
final List<KarafPlatformModelFactory> factories = getPlatformModelFactories();
for (KarafPlatformModelFactory f : factories) {
if (f.getPlatformValidator().isValid(path)) {
return f;
}
}
return null;
}
/**
* Gets all {@link KarafPlatformModelFactory} objects that are a "model"
*
* @return a {@link List<KarafPlatformModelFactory>} of 0 or more {@code
* KarafPlatformModelFactory}
* @throws CoreException
* if there is a problem fetching information from the extension
* registry
*/
public static List<KarafPlatformModelFactory> getPlatformModelFactories() throws CoreException {
final List<KarafPlatformModelFactory> factories =
new ArrayList<KarafPlatformModelFactory>();
final IExtension[] extensions = Platform.getExtensionRegistry()
.getExtensionPoint(KarafCorePluginActivator.PLUGIN_ID, "platformModel")
.getExtensions();
for (IExtension e : extensions) {
for (IConfigurationElement c : e.getConfigurationElements()) {
if (!c.getName().equals(TAG_PLATFORM_MODEL_ITEMTYPE)) {
continue;
}
KarafPlatformModelFactory f =
(KarafPlatformModelFactory)c.createExecutableExtension(ATT_CLASS);
factories.add(f);
}
}
return factories;
}
/**
*
* @return
* @throws CoreException
*/
public static List<String> getTriggerBundles() throws CoreException {
final List<String> triggerBundles = new ArrayList<String>();
triggerBundles.addAll(getTriggerBundlePlatformFactoryMap().keySet());
return triggerBundles;
}
/**
*
* @return
* @throws CoreException
*/
public static Map<String, IConfigurationElement> getTriggerBundlePlatformFactoryMap() throws CoreException {
final Map<String, IConfigurationElement> triggerBundleMap =
new LinkedHashMap<String, IConfigurationElement>();
final IExtension[] extensions =
Platform.getExtensionRegistry()
.getExtensionPoint(KarafCorePluginActivator.PLUGIN_ID, "platformModel")
.getExtensions();
for (IExtension e : extensions) {
for (IConfigurationElement c : e.getConfigurationElements()) {
if (!c.getName().equals(TAG_PLATFORM_MODEL_ITEMTYPE)) {
continue;
}
IConfigurationElement[] children = c.getChildren(TAG_TRIGGER_BUNDLE_ITEMTYPE);
for (IConfigurationElement tb : children) {
triggerBundleMap.put(tb.getAttribute(ATT_SYMBOLIC_NAME), c);
}
}
}
return triggerBundleMap;
}
}