Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2007-2011 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package org.jvnet.hk2.component.internal.runlevel;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import org.jvnet.hk2.annotations.RunLevel;
import org.jvnet.hk2.component.ComponentException;
import org.jvnet.hk2.component.Habitat;
import org.jvnet.hk2.component.HabitatListener;
import org.jvnet.hk2.component.Inhabitant;
import org.jvnet.hk2.component.RunLevelService;
/**
* This serves to provide holders, or proxy instances, for RunLevelServices
* that are not initially found in the Habitat.
*
* for internal use only.
*
* @author Jeff Trent
*
* @since 3.1
*/
public class RunLevelServices {
private Map, RunLevelServiceStub>> map =
new HashMap, RunLevelServiceStub>>();
/**
* Find the RunLevelService appropriate for the specified RunLevel.
*/
public synchronized RunLevelService get(Habitat habitat, RunLevel rl) {
assert(null != rl);
// if any inhabitants are already being managed, use same RLS stub.
// we especially want to do this because we don't want to activate
// the RunLevelservice before all of the inhabitants are present.
RunLevelService rls = getFromMap(habitat, rl.environment());
// next, check to see if we have it from the habitat
if (null == rls) {
rls = getFromHabitat(habitat, rl.environment());
}
// create the stub if we didn't find it anywhere
if (null == rls) {
rls = create(habitat, rl);
}
return rls;
}
@SuppressWarnings("unchecked")
static RunLevelService getFromHabitat(Habitat habitat, Class environment) {
// TODO: If environment was on annotation of the RunLevelService impl instead of
// a method of the instance, we wouldn't have to activate the RunLevelService(s)
if (null == habitat) {
return null;
}
Collection coll = habitat.getAllByContract(RunLevelService.class);
RunLevelService theOne = null;
for (RunLevelService hrls : coll) {
if (null != hrls.getState() &&
hrls.getState().getEnvironment() == environment) {
if (null != theOne) {
throw new ComponentException("constraint violation - competing RunLevelServices: " +
theOne + " and " + hrls);
}
theOne = hrls;
}
}
return theOne;
}
private RunLevelService getFromMap(Habitat habitat, Class env) {
Map, RunLevelServiceStub> envMap;
synchronized (map) {
envMap = map.get(habitat);
if (null == envMap) {
return null;
}
}
RunLevelService rls;
synchronized (envMap) {
rls = envMap.get(env);
}
return rls;
}
private RunLevelService create(Habitat habitat, RunLevel rl) {
initialize(habitat, rl);
Map, RunLevelServiceStub> envMap;
synchronized (map) {
envMap = map.get(habitat);
if (null == envMap) {
envMap = new HashMap, RunLevelServiceStub>();
map.put(habitat, envMap);
}
}
RunLevelServiceStub rls;
synchronized (envMap) {
rls = envMap.get(rl.environment());
if (null == rls) {
rls = new RunLevelServiceStub(habitat, rl.environment());
envMap.put(rl.environment(), rls);
}
}
return rls;
}
private void initialize(Habitat habitat, RunLevel rl) {
if (null == habitat) {
return;
}
if (habitat.isInitialized()) {
throw new ComponentException("no RunLevelService found appropriate for RunLevel: " + rl);
}
habitat.addHabitatListener(new HabitatListener() {
@Override
public boolean inhabitantChanged(EventType eventType, Habitat habitat,
Inhabitant inhabitant) {
if (EventType.HABITAT_INITIALIZED == eventType) {
Map, RunLevelServiceStub> rlss;
synchronized (map) {
rlss = map.remove(habitat);
}
if (null != rlss) {
// we must have some runlevel inhabitants under management
for (RunLevelServiceStub rls : rlss.values()) {
RunLevelService realRls = getFromHabitat(rls.getHabitat(), rls.getEnvironment());
rls.activate(realRls);
}
}
return false;
}
return true;
}
@Override
public boolean inhabitantIndexChanged(EventType eventType,
Habitat habitat, Inhabitant inhabitant, String index, String name,
Object service) {
return true;
}
});
}
}
