private void initConfigDecorator() {
InputStream in =
Q2.class
.getClassLoader()
.getResourceAsStream("META-INF/org/jpos/config/Q2-decorator.properties");
try {
if (in != null) {
PropertyResourceBundle bundle = new PropertyResourceBundle(in);
String ccdClass = bundle.getString("config-decorator-class");
if (log != null) log.info("Initializing config decoration provider: " + ccdClass);
decorator =
(ConfigDecorationProvider) Q2.class.getClassLoader().loadClass(ccdClass).newInstance();
decorator.initialize(getDeployDir());
}
} catch (IOException e) {
} catch (Exception e) {
if (log != null) log.error(e);
else {
e.printStackTrace();
}
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
}
}
}
}
private boolean deploy(File f) {
try {
if (log != null) log.info("deploy:" + f.getCanonicalPath());
QEntry qentry = (QEntry) dirMap.get(f);
SAXBuilder builder = createSAXBuilder();
Document doc;
if (decorator != null && !f.getName().equals(LOGGER_CONFIG)) {
doc = decrypt(builder.build(new StringReader(decorator.decorateFile(f))));
} else {
doc = decrypt(builder.build(f));
}
Element rootElement = doc.getRootElement();
String iuuid = rootElement.getAttributeValue("instance");
if (iuuid != null) {
UUID uuid = UUID.fromString(iuuid);
if (!uuid.equals(getInstanceId())) {
deleteFile(f, iuuid);
return false;
}
}
Object obj = factory.instantiate(this, rootElement);
qentry.setObject(obj);
ObjectInstance instance = factory.createQBean(this, doc.getRootElement(), obj);
qentry.setInstance(instance);
} catch (InstanceAlreadyExistsException e) {
/*
* Ok, the file we tried to deploy, holds an object
* that already has been deployed.
*
* Rename it out of the way.
*
*/
tidyFileAway(f, DUPLICATE_EXTENSION);
getLog().warn("deploy", e);
return false;
} catch (Exception e) {
getLog().warn("deploy", e);
tidyFileAway(f, ERROR_EXTENSION);
// This will also save deploy error repeats...
return false;
} catch (Error e) {
getLog().warn("deploy", e);
tidyFileAway(f, ENV_EXTENSION);
// This will also save deploy error repeats...
return false;
}
return true;
}
public void run() {
started = true;
Thread.currentThread().setName("Q2-" + getInstanceId().toString());
try {
/*
* The following code determines whether a MBeanServer exists
* already. If so then the first one in the list is used.
* I have not yet find a way to interrogate the server for
* information other than MBeans so to pick a specific one
* would be difficult.
*/
ArrayList mbeanServerList = MBeanServerFactory.findMBeanServer(null);
if (mbeanServerList.isEmpty()) {
server = MBeanServerFactory.createMBeanServer(JMX_NAME);
} else {
server = (MBeanServer) mbeanServerList.get(0);
}
final ObjectName loaderName = new ObjectName(Q2_CLASS_LOADER);
try {
loader =
(QClassLoader)
java.security.AccessController.doPrivileged(
new java.security.PrivilegedAction() {
public Object run() {
return new QClassLoader(server, libDir, loaderName, mainClassLoader);
}
});
server.registerMBean(loader, loaderName);
loader = loader.scan(false);
} catch (Throwable t) {
if (log != null) log.error("initial-scan", t);
else t.printStackTrace();
}
factory = new QFactory(loaderName, this);
initSystemLogger();
addShutdownHook();
q2Thread = Thread.currentThread();
q2Thread.setContextClassLoader(loader);
if (cli != null) cli.start();
initConfigDecorator();
for (int i = 1; !shutdown; i++) {
try {
boolean forceNewClassLoader = scan();
QClassLoader oldClassLoader = loader;
loader = loader.scan(forceNewClassLoader);
if (loader != oldClassLoader) {
oldClassLoader = null; // We want't this to be null so it gets GCed.
System.gc(); // force a GC
log.info(
"new classloader ["
+ Integer.toString(loader.hashCode(), 16)
+ "] has been created");
}
deploy();
checkModified();
relax(SCAN_INTERVAL);
if (i % (3600000 / SCAN_INTERVAL) == 0) logVersion();
} catch (Throwable t) {
log.error("start", t);
relax();
}
}
undeploy();
try {
server.unregisterMBean(loaderName);
} catch (InstanceNotFoundException e) {
log.error(e);
}
if (decorator != null) {
decorator.uninitialize();
}
if (exit && !shuttingDown) System.exit(0);
} catch (Exception e) {
if (log != null) log.error(e);
else e.printStackTrace();
System.exit(1);
}
}
