public void setProperty(final QName pid, final QName propName, final String value) {
if (__log.isDebugEnabled()) __log.debug("Setting property " + propName + " on process " + pid);
ProcessConfImpl pconf = _processes.get(pid);
if (pconf == null) {
String msg = __msgs.msgProcessNotFound(pid);
__log.info(msg);
throw new ContextException(msg);
}
final DeploymentUnitDir dudir = pconf.getDeploymentUnit();
exec(
new ProcessStoreImpl.Callable<Object>() {
public Object call(ConfStoreConnection conn) {
DeploymentUnitDAO dudao = conn.getDeploymentUnit(dudir.getName());
if (dudao == null) return null;
ProcessConfDAO proc = dudao.getProcess(pid);
if (proc == null) return null;
proc.setProperty(propName, value);
return null;
}
});
fireEvent(new ProcessStoreEvent(ProcessStoreEvent.Type.PROPERTY_CHANGED, pid, dudir.getName()));
}
/**
* Load a deployment unit record stored in the db into memory.
*
* @param dudao
*/
protected List<ProcessConfImpl> load(DeploymentUnitDAO dudao) {
__log.debug("Loading deployment unit record from db: " + dudao.getName());
File dudir = findDeployDir(dudao);
if (dudir == null || !dudir.exists())
throw new ContextException(
"Deployed directory " + (dudir == null ? "(unknown)" : dudir) + " no longer there!");
DeploymentUnitDir dud = new DeploymentUnitDir(dudir);
// set the name with the one from database
dud.setName(dudao.getName());
dud.scan();
ArrayList<ProcessConfImpl> loaded = new ArrayList<ProcessConfImpl>();
_rw.writeLock().lock();
try {
_deploymentUnits.put(dud.getName(), dud);
long version = 0;
for (ProcessConfDAO p : dudao.getProcesses()) {
TDeployment.Process pinfo = dud.getProcessDeployInfo(p.getType());
if (pinfo == null) {
__log.warn("Cannot load " + p.getPID() + "; cannot find descriptor.");
continue;
}
Map<QName, Node> props = calcInitialProperties(dud.getProperties(), pinfo);
// TODO: update the props based on the values in the DB.
ProcessConfImpl pconf =
new ProcessConfImpl(
p.getPID(),
p.getType(),
p.getVersion(),
dud,
pinfo,
dudao.getDeployDate(),
props,
p.getState(),
eprContext,
_configDir,
generateProcessEventsAll);
version = p.getVersion();
_processes.put(pconf.getProcessId(), pconf);
loaded.add(pconf);
}
// All processes and the DU have the same version
dud.setVersion(version);
} finally {
_rw.writeLock().unlock();
}
return loaded;
}
/**
* Retire all the other versions of the same DU: first take the DU name and insert version regexp,
* than try to match the this string against names of already deployed DUs. For instance if we are
* deploying DU "AbsenceRequest-2/AbsenceRequest.ode" and there's already version 2 than regexp
* "AbsenceRequest([-\\.](\d)+)?/AbsenceRequest.ode" will be matched against
* "AbsenceRequest-2/AbsenceRequest.ode" and setRetirePackage() will be called accordingly.
*/
private void retirePreviousPackageVersions(DeploymentUnitDir du) {
// retire all the other versions of the same DU
String[] nameParts = du.getName().split("/");
/* Replace the version number (if any) with regexp to match any version number */
nameParts[0] = nameParts[0].replaceAll("([-\\Q.\\E](\\d)+)?\\z", "");
nameParts[0] += "([-\\Q.\\E](\\d)+)?";
StringBuilder duNameRegExp = new StringBuilder(du.getName().length() * 2);
for (int i = 0, n = nameParts.length; i < n; i++) {
if (i > 0) duNameRegExp.append("/");
duNameRegExp.append(nameParts[i]);
}
Pattern duNamePattern = Pattern.compile(duNameRegExp.toString());
for (String deployedDUname : _deploymentUnits.keySet()) {
Matcher matcher = duNamePattern.matcher(deployedDUname);
if (matcher.matches()) {
setRetiredPackage(deployedDUname, true);
}
}
}
public Collection<QName> undeploy(final String duName) {
try {
exec(
new Callable<Collection<QName>>() {
public Collection<QName> call(ConfStoreConnection conn) {
DeploymentUnitDAO dudao = conn.getDeploymentUnit(duName);
if (dudao != null) dudao.delete();
return null;
}
});
} catch (Exception ex) {
__log.error(
"Error synchronizing with data store; " + duName + " may be reappear after restart!");
}
Collection<QName> undeployed = Collections.emptyList();
DeploymentUnitDir du;
_rw.writeLock().lock();
try {
du = _deploymentUnits.remove(duName);
if (du != null) {
undeployed = toPids(du.getProcessNames(), du.getVersion());
}
for (QName pn : undeployed) {
fireEvent(new ProcessStoreEvent(ProcessStoreEvent.Type.UNDEPLOYED, pn, du.getName()));
__log.info(__msgs.msgProcessUndeployed(pn));
}
_processes.keySet().removeAll(undeployed);
} finally {
_rw.writeLock().unlock();
}
return undeployed;
}
/** Deploys a process. */
public Collection<QName> deploy(
final File deploymentUnitDirectory,
boolean activate,
String duName,
boolean autoincrementVersion) {
__log.info(__msgs.msgDeployStarting(deploymentUnitDirectory));
final Date deployDate = new Date();
// Create the DU and compile/scan it before acquiring lock.
final DeploymentUnitDir du = new DeploymentUnitDir(deploymentUnitDirectory);
if (duName != null) {
// Override the package name if given from the parameter
du.setName(duName);
}
long version;
if (autoincrementVersion || du.getStaticVersion() == -1) {
// Process and DU use a monotonically increased single version number by default.
try {
version = getCurrentVersion();
} finally {
// we need to reset the current version thread local value.
_currentVersion.set(null);
}
} else {
version = du.getStaticVersion();
}
du.setVersion(version);
try {
du.compile();
} catch (CompilationException ce) {
String errmsg = __msgs.msgDeployFailCompileErrors(ce);
__log.error(errmsg, ce);
throw new ContextException(errmsg, ce);
}
du.scan();
final DeployDocument dd = du.getDeploymentDescriptor();
final ArrayList<ProcessConfImpl> processes = new ArrayList<ProcessConfImpl>();
Collection<QName> deployed;
_rw.writeLock().lock();
try {
if (_deploymentUnits.containsKey(du.getName())) {
String errmsg = __msgs.msgDeployFailDuplicateDU(du.getName());
__log.error(errmsg);
throw new ContextException(errmsg);
}
retirePreviousPackageVersions(du);
for (TDeployment.Process processDD : dd.getDeploy().getProcessArray()) {
QName pid = toPid(processDD.getName(), version);
if (_processes.containsKey(pid)) {
String errmsg = __msgs.msgDeployFailDuplicatePID(processDD.getName(), du.getName());
__log.error(errmsg);
throw new ContextException(errmsg);
}
QName type = processDD.getType() != null ? processDD.getType() : processDD.getName();
CBPInfo cbpInfo = du.getCBPInfo(type);
if (cbpInfo == null) {
String errmsg = __msgs.msgDeployFailedProcessNotFound(processDD.getName(), du.getName());
__log.error(errmsg);
throw new ContextException(errmsg);
}
ProcessConfImpl pconf =
new ProcessConfImpl(
pid,
processDD.getName(),
version,
du,
processDD,
deployDate,
calcInitialProperties(du.getProperties(), processDD),
calcInitialState(processDD),
eprContext,
_configDir,
generateProcessEventsAll);
processes.add(pconf);
}
_deploymentUnits.put(du.getName(), du);
for (ProcessConfImpl process : processes) {
__log.info(__msgs.msgProcessDeployed(du.getDeployDir(), process.getProcessId()));
_processes.put(process.getProcessId(), process);
}
} finally {
_rw.writeLock().unlock();
}
// Do the deployment in the DB. We need this so that we remember deployments across system
// shutdowns.
// We don't fail if there is a DB error, simply print some errors.
deployed =
exec(
new Callable<Collection<QName>>() {
public Collection<QName> call(ConfStoreConnection conn) {
// Check that this deployment unit is not deployed.
DeploymentUnitDAO dudao = conn.getDeploymentUnit(du.getName());
if (dudao != null) {
String errmsg = "Database out of synch for DU " + du.getName();
__log.warn(errmsg);
dudao.delete();
}
dudao = conn.createDeploymentUnit(du.getName());
try {
dudao.setDeploymentUnitDir(deploymentUnitDirectory.getCanonicalPath());
} catch (IOException e1) {
String errmsg =
"Error getting canonical path for "
+ du.getName()
+ "; deployment unit will not be available after restart!";
__log.error(errmsg);
}
ArrayList<QName> deployed = new ArrayList<QName>();
// Going trough each process declared in the dd
for (ProcessConfImpl pc : processes) {
try {
ProcessConfDAO newDao =
dudao.createProcess(pc.getProcessId(), pc.getType(), pc.getVersion());
newDao.setState(pc.getState());
for (Map.Entry<QName, Node> prop : pc.getProcessProperties().entrySet()) {
newDao.setProperty(prop.getKey(), DOMUtils.domToString(prop.getValue()));
}
deployed.add(pc.getProcessId());
} catch (Throwable e) {
String errmsg =
"Error persisting deployment record for "
+ pc.getProcessId()
+ "; process will not be available after restart!";
__log.error(errmsg, e);
}
}
return deployed;
}
});
_rw.readLock().lock();
boolean readLockHeld = true;
try {
for (ProcessConfImpl process : processes) {
fireEvent(
new ProcessStoreEvent(
ProcessStoreEvent.Type.DEPLOYED,
process.getProcessId(),
process.getDeploymentUnit().getName()));
fireStateChange(
process.getProcessId(), process.getState(), process.getDeploymentUnit().getName());
}
} catch (Exception e) {
// need to unlock as undeploy operation will need a writeLock
_rw.readLock().unlock();
readLockHeld = false;
// A problem at that point means that engine deployment failed, we don't want the store to
// keep the du
__log.warn("Deployment failed within the engine, store undeploying process.", e);
undeploy(deploymentUnitDirectory);
if (e instanceof ContextException) throw (ContextException) e;
else throw new ContextException("Deployment failed within the engine. " + e.getMessage(), e);
} finally {
if (readLockHeld) _rw.readLock().unlock();
}
return deployed;
}