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;
}
/** Load all the deployment units out of the store. Called on start-up. */
public void loadAll() {
final ArrayList<ProcessConfImpl> loaded = new ArrayList<ProcessConfImpl>();
exec(
new Callable<Object>() {
public Object call(ConfStoreConnection conn) {
Collection<DeploymentUnitDAO> dus = conn.getDeploymentUnits();
for (DeploymentUnitDAO du : dus)
try {
loaded.addAll(load(du));
} catch (Exception ex) {
__log.error("Error loading DU from store: " + du.getName(), ex);
}
return null;
}
});
// Dispatch DISABLED, RETIRED and ACTIVE events in that order
Collections.sort(
loaded,
new Comparator<ProcessConf>() {
public int compare(ProcessConf o1, ProcessConf o2) {
return stateValue(o1.getState()) - stateValue(o2.getState());
}
int stateValue(ProcessState state) {
if (ProcessState.DISABLED.equals(state)) return 0;
if (ProcessState.RETIRED.equals(state)) return 1;
if (ProcessState.ACTIVE.equals(state)) return 2;
throw new IllegalStateException("Unexpected process state: " + state);
}
});
for (ProcessConfImpl p : loaded) {
try {
fireStateChange(p.getProcessId(), p.getState(), p.getDeploymentUnit().getName());
} catch (Exception except) {
__log.error(
"Error while activating process: pid="
+ p.getProcessId()
+ " package="
+ p.getDeploymentUnit().getName(),
except);
}
}
}
public void setState(final QName pid, final ProcessState state) {
__log.debug("Changing process state for " + pid + " to " + state);
final ProcessConfImpl pconf;
_rw.readLock().lock();
try {
pconf = _processes.get(pid);
if (pconf == null) {
String msg = __msgs.msgProcessNotFound(pid);
__log.info(msg);
throw new ContextException(msg);
}
} finally {
_rw.readLock().unlock();
}
final DeploymentUnitDir dudir = pconf.getDeploymentUnit();
// Update in the database.
ProcessState old =
exec(
new Callable<ProcessState>() {
public ProcessState call(ConfStoreConnection conn) {
DeploymentUnitDAO dudao = conn.getDeploymentUnit(dudir.getName());
if (dudao == null) {
String errmsg = __msgs.msgProcessNotFound(pid);
__log.error(errmsg);
throw new ContextException(errmsg);
}
ProcessConfDAO dao = dudao.getProcess(pid);
if (dao == null) {
String errmsg = __msgs.msgProcessNotFound(pid);
__log.error(errmsg);
throw new ContextException(errmsg);
}
Set processKeys = _processes.keySet();
Iterator processConfQNameItr = processKeys.iterator();
while (processConfQNameItr.hasNext()) {
ProcessConf cachedProcessConf = _processes.get(processConfQNameItr.next());
if (dao.getType().equals(cachedProcessConf.getType())) {
if (ProcessState.ACTIVE == cachedProcessConf.getState()
&& ProcessState.RETIRED == dao.getState()
&& ProcessState.ACTIVE == state) {
String errorMsg =
"Can't activate the process with PID: "
+ dao.getPID()
+ " with version "
+ dao.getVersion()
+ ", as another version of the process with PID : "
+ cachedProcessConf.getProcessId()
+ " with version "
+ cachedProcessConf.getVersion()
+ " is already active.";
__log.error(errorMsg);
throw new ContextException(errorMsg);
}
}
}
ProcessState old = dao.getState();
dao.setState(state);
pconf.setState(state);
return old;
}
});
pconf.setState(state);
if (old != null && old != state)
fireStateChange(pid, state, pconf.getDeploymentUnit().getName());
}
/** 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;
}
