package org.argeo.cms.internal.kernel;
import java.lang.management.ManagementFactory;
import javax.jcr.Repository;
import javax.jcr.RepositoryFactory;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.jackrabbit.util.TransientFileFactory;
import org.argeo.ArgeoException;
import org.argeo.cms.CmsException;
import org.argeo.jackrabbit.OsgiJackrabbitRepositoryFactory;
import org.argeo.jcr.ArgeoJcrConstants;
import org.argeo.security.core.InternalAuthentication;
import org.eclipse.equinox.http.servlet.ExtendedHttpService;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceEvent;
import org.osgi.framework.ServiceListener;
import org.osgi.framework.ServiceReference;
import org.osgi.util.tracker.ServiceTracker;
import org.springframework.security.core.context.SecurityContextHolder;
/**
* Argeo CMS Kernel. Responsible for :
*
* - security
* - provisioning
* - transaction
* - logging
* - local and remote file systems access
* - OS access
*
*/
final class Kernel implements ServiceListener {
private final static Log log = LogFactory.getLog(Kernel.class);
private final BundleContext bundleContext;
private final ThreadGroup threadGroup = new ThreadGroup("Argeo CMS Kernel");
private JackrabbitNode node;
private RepositoryFactory repositoryFactory;
private NodeSecurity nodeSecurity;
private NodeHttp nodeHttp;
Kernel(BundleContext bundleContext) {
this.bundleContext = bundleContext;
}
void init() {
new Thread(threadGroup, "init") {
@Override
public void run() {
// CMS bundle classloader used during initialisation
Thread.currentThread().setContextClassLoader(
Kernel.class.getClassLoader());
doInit();
}
}.start();
}
/** Run asynchronously */
protected void doInit() {
long begin = System.currentTimeMillis();
InternalAuthentication initAuth = new InternalAuthentication(
KernelConstants.DEFAULT_SECURITY_KEY);
SecurityContextHolder.getContext().setAuthentication(initAuth);
try {
node = new JackrabbitNode(bundleContext);
repositoryFactory = new OsgiJackrabbitRepositoryFactory();
nodeSecurity = new NodeSecurity(bundleContext, node);
// Equinox dependency
ExtendedHttpService httpService = waitForHttpService();
nodeHttp = new NodeHttp(httpService, node, nodeSecurity);
// Publish services to OSGi
nodeSecurity.publish();
node.publish();
bundleContext.registerService(RepositoryFactory.class,
repositoryFactory, null);
bundleContext.addServiceListener(Kernel.this);
} catch (Exception e) {
log.error("Cannot initialize Argeo CMS", e);
throw new ArgeoException("Cannot initialize", e);
}
long jvmUptime = ManagementFactory.getRuntimeMXBean().getUptime();
log.info("## ARGEO CMS UP in " + (jvmUptime / 1000) + "."
+ (jvmUptime % 1000) + "s ##");
long initDuration = System.currentTimeMillis() - begin;
if (log.isTraceEnabled())
log.trace("Kernel initialization took " + initDuration + "ms");
directorsCut(initDuration);
}
void destroy() {
long begin = System.currentTimeMillis();
if (nodeHttp != null)
nodeHttp.destroy();
if (nodeSecurity != null)
nodeSecurity.destroy();
if (node != null)
node.destroy();
bundleContext.removeServiceListener(this);
// Clean hanging threads from Jackrabbit
TransientFileFactory.shutdown();
long duration = System.currentTimeMillis() - begin;
log.info("## ARGEO CMS DOWN in " + (duration / 1000) + "."
+ (duration % 1000) + "s ##");
}
@Override
public void serviceChanged(ServiceEvent event) {
ServiceReference> sr = event.getServiceReference();
Object jcrRepoAlias = sr
.getProperty(ArgeoJcrConstants.JCR_REPOSITORY_ALIAS);
if (jcrRepoAlias != null) {// JCR repository
String alias = jcrRepoAlias.toString();
Repository repository = (Repository) bundleContext.getService(sr);
if (ServiceEvent.REGISTERED == event.getType()) {
try {
nodeHttp.registerWebdavServlet(alias, repository, true);
nodeHttp.registerWebdavServlet(alias, repository, false);
nodeHttp.registerRemotingServlet(alias, repository, true);
nodeHttp.registerRemotingServlet(alias, repository, false);
} catch (Exception e) {
throw new CmsException("Could not publish JCR repository "
+ alias, e);
}
} else if (ServiceEvent.UNREGISTERING == event.getType()) {
}
}
}
final private static void directorsCut(long initDuration) {
// final long ms = 128l + (long) (Math.random() * 128d);
long ms = initDuration / 10;
log.info("Spend " + ms + "ms"
+ " reflecting on the progress brought to mankind"
+ " by Free Software...");
long beginNano = System.nanoTime();
try {
Thread.sleep(ms, 0);
} catch (InterruptedException e) {
// silent
}
long durationNano = System.nanoTime() - beginNano;
final double M = 1000d * 1000d;
double sleepAccuracy = ((double) durationNano) / (ms * M);
if (log.isTraceEnabled())
log.trace("Sleep accuracy: "
+ String.format("%.2f", sleepAccuracy * 100) + " %");
}
private ExtendedHttpService waitForHttpService() {
final ServiceTracker st = new ServiceTracker(
bundleContext, ExtendedHttpService.class, null);
st.open();
ExtendedHttpService httpService;
try {
httpService = st.waitForService(1000);
} catch (InterruptedException e) {
httpService = null;
}
if (httpService == null)
throw new CmsException("Could not find "
+ ExtendedHttpService.class + " service.");
return httpService;
}
}