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Arbeitsstand Anfang Februar 

git-svn-id: https://brutex.net/svn/xservices/trunk@99 e7e49efb-446e-492e-b9ec-fcafc1997a86
tag-20130205r
Brian Rosenberger 2013-02-05 13:56:47 +00:00
parent 2f49fc019b
commit 7a46de1d39
3 changed files with 0 additions and 230 deletions
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56
src/java/net/brutex/xservices/util/cache/CacheExecutorService.java vendored
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/*
* Copyright 2012 Brian Rosenberger (Brutex Network)
*
* Licensed 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 net.brutex.xservices.util.cache;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
/**
* @author Brian Rosenberger, bru(at)brutex.de
* @since 0.5.0-20120825
*/
public class CacheExecutorService implements ServletContextListener {
static final String EXECUTOR_NAME = "CACHE_EXECUTOR";
private ExecutorService executor;
public void contextInitialized(ServletContextEvent arg0) {
ServletContext context = arg0.getServletContext();
int nr_executors = 1;
ThreadFactory daemonFactory = new DaemonThreadFactory();
try {
nr_executors = Integer.parseInt(context.getInitParameter("cache:thread-count"));
} catch (NumberFormatException ignore ) {}
if(nr_executors <= 1) {
executor = Executors.newSingleThreadExecutor(daemonFactory);
} else {
executor = Executors.newFixedThreadPool(nr_executors,daemonFactory);
}
context.setAttribute(EXECUTOR_NAME, executor);
}
public void contextDestroyed(ServletContextEvent arg0) {
ServletContext context = arg0.getServletContext();
executor.shutdownNow(); // or process/wait until all pending jobs are done
}
}

122
src/java/net/brutex/xservices/util/cache/CacheServlet.java vendored
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/*
* Copyright 2012 Brian Rosenberger (Brutex Network)
*
* Licensed 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 net.brutex.xservices.util.cache;
import java.io.File;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.concurrent.ExecutorService;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.ws.rs.core.GenericEntity;
import javax.ws.rs.core.Response;
import org.apache.log4j.Logger;
import net.brutex.xservices.types.scm.ModuleType;
import net.brutex.xservices.ws.rs.CVSInfoImpl;
/**
* Perform Caching actions on the CVS Info actions
*
* @author Brian Rosenberger, bru(at)brutex.de
* @since 0.5.0-200120825
*
*/
public class CacheServlet extends HttpServlet {
private final Logger logger = Logger.getLogger(CacheServlet.class);
List<File> configfiles = new ArrayList<File>();;
int cacheinterval;
/*
* (non-Javadoc)
*
* @see javax.servlet.GenericServlet#init()
*/
@Override
public void init() throws ServletException {
super.init();
ExecutorService executor = (ExecutorService) getServletContext()
.getAttribute(CacheExecutorService.EXECUTOR_NAME);
Enumeration<String> attributes = getServletContext()
.getInitParameterNames();
while (attributes.hasMoreElements()) {
String name = attributes.nextElement();
if (name.startsWith("cvs-config-")) {
String configfile = (String) getServletContext()
.getInitParameter(name);
logger.info("CVS configuration file: " + configfile);
this.configfiles.add(new File(configfile));
}
}
cacheinterval = 15;
try {
cacheinterval = Integer.parseInt((String) getServletContext()
.getInitParameter("cvs-cache-interval"));
} catch (NumberFormatException e) {
logger.debug("Could not read parameter 'cvs-cache-interval' from web.xml. Using default value '"+cacheinterval+"' minutes");
}
logger.info("CacheServlet set to " + cacheinterval + " minutes interval.");
executor.submit(new Runnable() {
boolean isInterrupted = false;
@Override
public void run() {
while (!isInterrupted) {
for (File configfile : configfiles) {
CVSInfoImpl instance = new CVSInfoImpl();
logger.info("Caching modules from " + configfile.toURI().toString());
Response response = instance.getModules(null,
configfile, true);
List<ModuleType> list = (List<ModuleType>) ((GenericEntity) response
.getEntity()).getEntity();
if (list.size() == 0)
list.add(new ModuleType("", "", "", ""));
for (ModuleType t : list) {
try {
//Extra sleep
Thread.currentThread().sleep(5000);
} catch (InterruptedException e) {
isInterrupted = true;
break;
}
logger.info("Caching module '" + t.getName()+"'");
instance.getRepositoryFiles(null, configfile, t.getName(), true, true);
}
}
try {
logger.debug("Now sleeping for '"+cacheinterval+"' minutes");
Thread.currentThread().sleep(cacheinterval * 60000);
logger.debug("Waking up after '"+cacheinterval+"' minutes of sleep");
} catch (InterruptedException e) {
isInterrupted = true;
break;
}
}
}
});
}
}

52
src/java/net/brutex/xservices/util/cache/DaemonThreadFactory.java vendored
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/*
* Copyright 2012 Brian Rosenberger (Brutex Network)
*
* Licensed 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 net.brutex.xservices.util.cache;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
public class DaemonThreadFactory implements ThreadFactory {
private final ThreadFactory factory;
/**
* Construct a ThreadFactory with setDeamon(true) using
* Executors.defaultThreadFactory()
*/
public DaemonThreadFactory() {
this(Executors.defaultThreadFactory());
}
/**
* Construct a ThreadFactory with setDeamon(true) wrapping the given factory
*
* @param thread
* factory to wrap
*/
public DaemonThreadFactory(ThreadFactory factory) {
if (factory == null)
throw new NullPointerException("factory cannot be null");
this.factory = factory;
}
public Thread newThread(Runnable r) {
final Thread t = factory.newThread(r);
t.setDaemon(true);
return t;
}
}