private void deploy() {
List startList = new ArrayList();
Iterator iter = dirMap.entrySet().iterator();
try {
while (iter.hasNext() && !shutdown) {
Map.Entry entry = (Map.Entry) iter.next();
File f = (File) entry.getKey();
QEntry qentry = (QEntry) entry.getValue();
long deployed = qentry.getDeployed();
if (deployed == 0) {
if (deploy(f)) {
if (qentry.isQBean()) startList.add(qentry.getInstance());
qentry.setDeployed(f.lastModified());
} else {
// deploy failed, clean up.
iter.remove();
}
} else if (deployed != f.lastModified()) {
undeploy(f);
iter.remove();
loader.forceNewClassLoaderOnNextScan();
}
}
iter = startList.iterator();
while (iter.hasNext()) {
start((ObjectInstance) iter.next());
}
} catch (Exception e) {
log.error("deploy", e);
}
}
private void initSystemLogger() {
File loggerConfig = new File(deployDir, LOGGER_CONFIG);
if (loggerConfig.canRead()) {
hasSystemLogger = true;
try {
register(loggerConfig);
deploy();
} catch (Exception e) {
getLog().warn("init-system-logger", e);
}
}
getLog().info("Q2 started, deployDir=" + deployDir.getAbsolutePath());
}
private boolean register(File f) {
boolean rc = false;
if (f.isDirectory()) {
File file[] = f.listFiles(this);
for (int i = 0; i < file.length; i++) {
if (register(file[i])) rc = true;
}
} else if (dirMap.get(f) == null) {
dirMap.put(f, new QEntry());
rc = true;
}
return rc;
}
private void undeploy(File f) {
QEntry qentry = (QEntry) dirMap.get(f);
try {
if (log != null) log.trace("undeploying:" + f.getCanonicalPath());
Object obj = qentry.getObject();
ObjectName name = qentry.getObjectName();
factory.destroyQBean(this, name, obj);
if (log != null) log.info("undeployed:" + f.getCanonicalPath());
} catch (Exception e) {
getLog().warn("undeploy", 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;
}
private boolean scan() {
boolean rc = false;
File file[] = deployDir.listFiles(this);
// Arrays.sort (file); --apr not required - we use TreeMap
if (file == null) {
// Shutting down might be best, how to trigger from within?
throw new Error("Deploy directory \"" + deployDir.getAbsolutePath() + "\" is not available");
} else {
for (File f : file) {
if (register(f)) rc = true;
}
}
return rc;
}
public void deployElement(Element e, String fileName, boolean encrypt, boolean isTransient)
throws ISOException, IOException, GeneralSecurityException {
e = ((Element) e.clone());
XMLOutputter out = new XMLOutputter(Format.getPrettyFormat());
Document doc = new Document();
doc.setRootElement(e);
File qbean = new File(deployDir, fileName);
if (isTransient) {
e.setAttribute("instance", getInstanceId().toString());
qbean.deleteOnExit();
}
FileWriter writer = new FileWriter(qbean);
if (encrypt) doc = encrypt(doc);
out.output(doc, writer);
writer.close();
}
public Q2(String[] args) {
super();
this.args = args;
startTime = System.currentTimeMillis();
instanceId = UUID.randomUUID();
parseCmdLine(args);
libDir = new File(deployDir, "lib");
dirMap = new TreeMap();
deployDir.mkdirs();
mainClassLoader = Thread.currentThread().getContextClassLoader();
}
private void tidyFileAway(File f, String extension) {
File rename = new File(f.getAbsolutePath() + "." + extension);
while (rename.exists()) {
rename = new File(rename.getAbsolutePath() + "." + extension);
}
getLog()
.warn(
"Tidying " + f.getAbsolutePath() + " out of the way, by adding ." + extension,
"It will be called: "
+ rename.getAbsolutePath()
+ " see log above for detail of problem.");
f.renameTo(rename);
}
private long persist(File f, ObjectName name) {
long deployed = f.lastModified();
try {
Element e = (Element) server.getAttribute(name, "Persist");
if (e != null) {
XMLOutputter out = new XMLOutputter(Format.getPrettyFormat());
Document doc = new Document();
e.detach();
doc.setRootElement(e);
File tmp = new File(f.getAbsolutePath() + ".tmp");
FileWriter writer = new FileWriter(tmp);
out.output(doc, writer);
writer.close();
f.delete();
tmp.renameTo(f);
deployed = f.lastModified();
}
} catch (Exception ex) {
log.warn("persist", ex);
}
return deployed;
}
private void deleteFile(File f, String iuuid) {
f.delete();
getLog()
.info(String.format("Deleted transient descriptor %s (%s)", f.getAbsolutePath(), iuuid));
}
public boolean accept(File f) {
return f.canRead()
&& (f.getName().endsWith(".xml")
|| (recursive && f.isDirectory() && !"lib".equalsIgnoreCase(f.getName())));
}