/*
* 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.web.internal;
import org.apache.karaf.web.WebBundle;
import org.apache.karaf.web.WebContainerService;
import org.ops4j.pax.web.service.spi.WarManager;
import org.ops4j.pax.web.service.spi.WebEvent;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleEvent;
import org.osgi.framework.BundleListener;
import org.osgi.framework.Constants;
import org.osgi.framework.startlevel.BundleStartLevel;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/**
* Implementation of the WebContainer service.
*/
public class WebContainerServiceImpl implements WebContainerService, BundleListener {
private BundleContext bundleContext;
private WebEventHandler webEventHandler;
private WarManager warManager;
private static final Logger LOGGER = LoggerFactory.getLogger(WebContainerServiceImpl.class);
public void setBundleContext(BundleContext bundleContext) {
this.bundleContext = bundleContext;
}
public void setWebEventHandler(WebEventHandler webEventHandler) {
this.webEventHandler = webEventHandler;
}
public void setWarManager(WarManager warManager) {
this.warManager = warManager;
}
@Override
public void bundleChanged(BundleEvent bundleEvent) {
if (bundleEvent.getType() == BundleEvent.UNINSTALLED
|| bundleEvent.getType() == BundleEvent.UNRESOLVED
|| bundleEvent.getType() == BundleEvent.STOPPED) {
webEventHandler.getBundleEvents().remove(bundleEvent.getBundle().getBundleId());
}
}
public List<WebBundle> list() throws Exception {
Bundle[] bundles = bundleContext.getBundles();
Map<Long, WebEvent> bundleEvents = webEventHandler.getBundleEvents();
List<WebBundle> webBundles = new ArrayList<WebBundle>();
if (bundles != null) {
for (Bundle bundle : bundles) {
// first check if the bundle is a web bundle
String contextPath = (String) bundle.getHeaders().get("Web-ContextPath");
if (contextPath == null) {
contextPath = (String) bundle.getHeaders().get("Webapp-Context"); // this one used by pax-web but is deprecated
}
if (contextPath == null) {
// the bundle is not a web bundle
continue;
}
WebBundle webBundle = new WebBundle();
contextPath = contextPath.trim();
// get the bundle name
String name = (String) bundle.getHeaders().get(Constants.BUNDLE_NAME);
// if there is no name, then default to symbolic name
name = (name == null) ? bundle.getSymbolicName() : name;
// if there is no symbolic name, resort to location
name = (name == null) ? bundle.getLocation() : name;
// get the bundle version
String version = (String) bundle.getHeaders().get(Constants.BUNDLE_VERSION);
name = ((version != null)) ? name + " (" + version + ")" : name;
long bundleId = bundle.getBundleId();
int level = bundle.adapt(BundleStartLevel.class).getStartLevel();
if (!contextPath.startsWith("/")) {
contextPath = "/" + contextPath;
}
webBundle.setBundleId(bundleId);
webBundle.setName(name);
webBundle.setContextPath(contextPath);
webBundle.setLevel(level);
webBundle.setState(getStateString(bundle));
webBundle.setWebState(state(bundle.getBundleId()));
webBundles.add(webBundle);
}
}
return webBundles;
}
public void start(List<Long> bundleIds) throws Exception {
if (bundleIds != null && !bundleIds.isEmpty()) {
for (long bundleId : bundleIds) {
if (webEventHandler.getBundleEvents().containsKey(bundleId)) {
WebEvent webEvent = webEventHandler.getBundleEvents().get(bundleId);
Bundle bundle = webEvent.getBundle();
if (bundle != null) {
// deploy
warManager.start(bundleId, null);
} else {
System.out.println("Bundle ID " + bundleId + " is invalid");
LOGGER.warn("Bundle ID {} is invalid", bundleId);
}
}
}
}
}
public void stop(List<Long> bundleIds) throws Exception {
if (bundleIds != null && !bundleIds.isEmpty()) {
for (long bundleId : bundleIds) {
if (webEventHandler.getBundleEvents().containsKey(bundleId)) {
WebEvent webEvent = webEventHandler.getBundleEvents().get(bundleId);
Bundle bundle = webEvent.getBundle();
if (bundle != null) {
// deploy
warManager.stop(bundleId);
} else {
System.out.println("Bundle ID " + bundleId + " is invalid");
LOGGER.warn("Bundle ID {} is invalid", bundleId);
}
}
}
}
}
public String state(long bundleId) {
Map<Long, WebEvent> bundleEvents = webEventHandler.getBundleEvents();
String topic = "Unknown ";
if (bundleEvents.containsKey(bundleId)) {
WebEvent webEvent = bundleEvents.get(bundleId);
switch(webEvent.getType()) {
case WebEvent.DEPLOYING:
topic = "Deploying ";
break;
case WebEvent.DEPLOYED:
topic = "Deployed ";
break;
case WebEvent.UNDEPLOYING:
topic = "Undeploying";
break;
case WebEvent.UNDEPLOYED:
topic = "Undeployed ";
break;
case WebEvent.FAILED:
topic = "Failed ";
break;
case WebEvent.WAITING:
topic = "Waiting ";
break;
default:
topic = "Failed ";
}
}
while (topic.length() < 11) {
topic += " ";
}
return topic;
}
/**
* Return a string representation of the bundle state.
*
* TODO use an util method provided by bundle core
*
* @param bundle the target bundle.
* @return the string representation of the state
*/
private String getStateString(Bundle bundle) {
int state = bundle.getState();
if (state == Bundle.ACTIVE) {
return "Active ";
} else if (state == Bundle.INSTALLED) {
return "Installed ";
} else if (state == Bundle.RESOLVED) {
return "Resolved ";
} else if (state == Bundle.STARTING) {
return "Starting ";
} else if (state == Bundle.STOPPING) {
return "Stopping ";
} else {
return "Unknown ";
}
}
@Override
public String getWebContextPath(Long id) {
Map<Long, WebEvent> bundleEvents = webEventHandler.getBundleEvents();
WebEvent webEvent = bundleEvents.get(id);
return webEvent.getContextPath();
}
}