package com.choncms.felix.bridge;
/*
* 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.
*/
import java.io.File;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import javax.servlet.ServletContext;
import org.apache.felix.framework.Felix;
import org.apache.felix.framework.util.FelixConstants;
import org.osgi.framework.Constants;
import com.choncms.config.ConfigReader;
public final class FrameworkService
{
private final ServletContext context;
private Felix felix;
public FrameworkService(ServletContext context)
{
this.context = context;
}
public void start()
{
try {
doStart();
} catch (Exception e) {
log("Failed to start framework", e);
}
}
public void stop()
{
try {
doStop();
} catch (Exception e) {
log("Error stopping framework", e);
}
}
private void doStart()
throws Exception
{
Felix tmp = new Felix(createConfig());
printInfo();
tmp.start();
this.felix = tmp;
log("OSGi framework started", null);
}
private void printInfo() {
System.out.println("--------------------------------------------------------------------------------");
System.out.println("--------------- Starting Chon Application ----------------------------------");
System.out.println(" - Using work-dir ........ " + System.getProperty("app.work.dir"));
System.out.println(" - Plugins dir ........... " + System.getProperty("chon.plugins.dir"));
System.out.println(" - Reposotiry dir ........ " + System.getProperty("repo.dir"));
System.out.println(" - Site URL .............. " + System.getProperty("siteUrl"));
System.out.println("--------------------------------------------------------------------------------");
}
private void doStop()
throws Exception
{
if (this.felix != null) {
this.felix.stop();
}
log("OSGi framework stopped", null);
}
private Map<String, Object> createConfig()
throws Exception
{
Properties props = new Properties();
props.load(this.context.getResourceAsStream("/WEB-INF/framework.properties"));
HashMap<String, Object> map = new HashMap<String, Object>();
for (Object key : props.keySet()) {
map.put(key.toString(), props.get(key));
}
map.put(FelixConstants.SYSTEMBUNDLE_ACTIVATORS_PROP, Arrays.asList(new ProvisionActivator(this.context)));
/**
* TODO: check intergrity for configurations
* make sure we have valid plugins dir, repository dir and resources...
* On initial application run (if application plugins are packaged inside war)
* make sure we can create chon-work-dir and unpack plugins.
* Repository and config should also be autocreated
*/
// read system.properties file
ConfigReader.readSystemProperties(this.context);
// set felix-cache to temp dir if felx-cache dir not found
String felixCacheDirPath = System.getProperty("felix-cache", System.getProperty("java.io.tmpdir") + "/felix-cache");
File felixCacheDir = new File(felixCacheDirPath);
felixCacheDir.mkdirs();
felixCacheDirPath = felixCacheDir.getAbsolutePath();
log("Using felix-cache dir: " + felixCacheDirPath, null);
map.put(Constants.FRAMEWORK_STORAGE, felixCacheDirPath);
return map;
}
private void log(String message, Throwable cause)
{
this.context.log(message, cause);
}
}