private synchronized void initEnterpriseBeanstalkHolder(
ServerContextInformation serverContextInformation) {
if (serverContextInformation.getProperty(
EnterpriseBeanstalkConstants.BEANSTALK_MANAGER_PROP_NAME)
== null) {
EnterpriseBeanstalkManager beanstalkHolder = new EnterpriseBeanstalkManager();
Properties synapseProperties = SynapsePropertiesLoader.reloadSynapseProperties();
beanstalkHolder.init(synapseProperties);
serverContextInformation.addProperty(
EnterpriseBeanstalkConstants.BEANSTALK_MANAGER_PROP_NAME, beanstalkHolder);
}
}
/**
* Initiating SharedSecretCallbackHandlerCache reusing an existing SecretCallbackHandler instance
* - a SecretCallbackHandler passed when start synapse.
*
* @param information ServerContextInformation instance
*/
private void initSharedSecretCallbackHandlerCache(ServerContextInformation information) {
SharedSecretCallbackHandlerCache cache = SharedSecretCallbackHandlerCache.getInstance();
Object handler = information.getProperty(SecurityConstants.PROP_SECRET_CALLBACK_HANDLER);
if (handler instanceof SecretCallbackHandler) {
cache.setSecretCallbackHandler((SecretCallbackHandler) handler);
}
}
/**
* Initiating DataSourceRepositoryHolder with a new data source information repository or reusing
* an existing repository.
*
* @param serverContextInformation ServerContextInformation instance
*/
private void initDataSourceHelper(ServerContextInformation serverContextInformation) {
DataSourceRepositoryHolder repositoryHolder = DataSourceRepositoryHolder.getInstance();
Properties synapseProperties = SynapsePropertiesLoader.reloadSynapseProperties();
Object repo =
serverContextInformation.getProperty(
DataSourceConstants.DATA_SOURCE_INFORMATION_REPOSITORY);
if (repo instanceof DataSourceInformationRepository) {
repositoryHolder.init((DataSourceInformationRepository) repo, synapseProperties);
} else {
repositoryHolder.init(null, synapseProperties);
}
}
/**
* Waits until it is safe to stop or the the specified end time has been reached. A delay of
* <code>waitIntervalMillis</code> milliseconds is used between each subsequent check. If the
* state "safeToStop" is reached before the specified <code>endTime</code>, the return value is
* true.
*
* @param waitIntervalMillis the pause time (delay) in milliseconds between subsequent checks
* @param endTime the time until which the checks need to finish successfully
* @return true, if a safe state is reached before the specified <code>endTime</code>, otherwise
* false (forceful stop required)
*/
public boolean waitUntilSafeToStop(long waitIntervalMillis, long endTime) {
boolean safeToStop = false;
boolean forcefulStop = false;
Axis2TransportHelper transportHelper = new Axis2TransportHelper(configurationContext);
// wait until it is safe to shutdown (listeners and tasks are idle, no callbacks)
while (!safeToStop && !forcefulStop) {
int pendingListenerThreads = transportHelper.getPendingListenerThreadCount();
if (pendingListenerThreads > 0) {
log.info(
new StringBuilder("Waiting for: ")
.append(pendingListenerThreads)
.append(" listener threads to complete")
.toString());
}
int pendingSenderThreads = transportHelper.getPendingSenderThreadCount();
if (pendingSenderThreads > 0) {
log.info(
new StringBuilder("Waiting for: ")
.append(pendingSenderThreads)
.append(" listener threads to complete")
.toString());
}
int activeConnections = transportHelper.getActiveConnectionsCount();
if (activeConnections > 0) {
log.info("Waiting for: " + activeConnections + " active connections to be closed..");
}
int pendingTransportThreads = pendingListenerThreads + pendingSenderThreads;
int pendingCallbacks = serverContextInformation.getCallbackCount();
if (pendingCallbacks > 0) {
log.info("Waiting for: " + pendingCallbacks + " callbacks/replies..");
}
int runningTasks = 0;
SynapseTaskManager synapseTaskManager = synapseEnvironment.getTaskManager();
if (synapseTaskManager.isInitialized()) {
runningTasks = synapseTaskManager.getTaskScheduler().getRunningTaskCount();
if (runningTasks > 0) {
log.info("Waiting for : " + runningTasks + " tasks to complete..");
}
}
// it is safe to stop if all used listener threads, callbacks and tasks are zero
safeToStop = ((pendingTransportThreads + pendingCallbacks + runningTasks) == 0);
if (safeToStop) {
log.info("All transport threads and tasks are idle and no pending callbacks..");
} else {
if (System.currentTimeMillis() < endTime) {
log.info(
new StringBuilder("Waiting for a maximum of another ")
.append((endTime - System.currentTimeMillis()) / 1000)
.append(" seconds until transport threads and tasks become idle, ")
.append("active connections to get closed,")
.append(" and callbacks to be completed..")
.toString());
try {
Thread.sleep(waitIntervalMillis);
} catch (InterruptedException ignore) {
// nothing to do here
}
} else {
// maximum time to wait is over, do a forceful stop
forcefulStop = true;
}
}
}
return !forcefulStop;
}
/** Cleanup the axis2 environment and stop the synapse environment. */
public void stop() {
try {
// stop tasks
SynapseTaskManager synapseTaskManager = synapseEnvironment.getTaskManager();
if (synapseTaskManager.isInitialized()) {
synapseTaskManager.cleanup();
}
EnterpriseBeanstalkManager manager =
(EnterpriseBeanstalkManager)
serverContextInformation.getProperty(
EnterpriseBeanstalkConstants.BEANSTALK_MANAGER_PROP_NAME);
if (manager != null) {
manager.destroy();
}
// stop the listener manager
if (listenerManager != null) {
listenerManager.stop();
}
// detach the synapse handlers
if (configurationContext != null) {
List<Phase> inflowPhases = configurationContext.getAxisConfiguration().getInFlowPhases();
for (Phase inPhase : inflowPhases) {
// we are interested about the Dispatch phase in the inflow
if (PhaseMetadata.PHASE_DISPATCH.equals(inPhase.getPhaseName())) {
List<HandlerDescription> synapseHandlers = new ArrayList<HandlerDescription>();
for (Handler handler : inPhase.getHandlers()) {
if (SynapseDispatcher.NAME.equals(handler.getName())
|| SynapseMustUnderstandHandler.NAME.equals(handler.getName())) {
synapseHandlers.add(handler.getHandlerDesc());
}
}
for (HandlerDescription handlerMD : synapseHandlers) {
inPhase.removeHandler(handlerMD);
}
}
}
} else {
handleException(
"Couldn't detach the Synapse handlers, " + "ConfigurationContext not found.");
}
// continue stopping the axis2 environment if we created it
if (serverConfigurationInformation.isCreateNewInstance()
&& configurationContext != null
&& configurationContext.getAxisConfiguration() != null) {
Map<String, AxisService> serviceMap =
configurationContext.getAxisConfiguration().getServices();
for (AxisService svc : serviceMap.values()) {
svc.setActive(false);
}
// stop all modules
Map<String, AxisModule> moduleMap =
configurationContext.getAxisConfiguration().getModules();
for (AxisModule mod : moduleMap.values()) {
if (mod.getModule() != null && !"synapse".equals(mod.getName())) {
mod.getModule().shutdown(configurationContext);
}
}
}
} catch (AxisFault e) {
log.error("Error stopping the Axis2 Environment");
}
}
/**
* {@inheritDoc}
*
* @param serverConfigurationInformation ServerConfigurationInformation Instance
* @param serverContextInformation Server Context if the Axis2 Based Server Environment has been
* already set up.
*/
public void init(
ServerConfigurationInformation serverConfigurationInformation,
ServerContextInformation serverContextInformation) {
log.info("Initializing Synapse at : " + new Date());
if (serverConfigurationInformation == null) {
throw new IllegalArgumentException("ServerConfigurationInformation cannot be null");
}
if (serverContextInformation == null) {
throw new IllegalArgumentException("ServerContextInformation cannot be null");
}
this.serverConfigurationInformation = serverConfigurationInformation;
this.serverContextInformation = serverContextInformation;
/* If no system property for the JMX agent is specified from outside, use a default one
to show all MBeans (including the Axis2-MBeans) within the Synapse tree */
if (System.getProperty(JMX_AGENT_NAME) == null) {
System.setProperty(JMX_AGENT_NAME, "org.apache.synapse");
}
if (serverContextInformation.getServerContext() == null
|| serverConfigurationInformation.isCreateNewInstance()) {
if (log.isDebugEnabled()) {
log.debug("Initializing Synapse in a new axis2 server environment instance");
}
createNewInstance(serverConfigurationInformation);
} else {
Object context = serverContextInformation.getServerContext();
if (context instanceof ConfigurationContext) {
if (log.isDebugEnabled()) {
log.debug(
"Initializing Synapse in an already existing " + "axis2 server environment instance");
}
configurationContext = (ConfigurationContext) context;
configurationContext.setProperty(AddressingConstants.ADDR_VALIDATE_ACTION, Boolean.FALSE);
} else {
handleFatal(
"Synapse startup initialization failed : Provided server context is"
+ " invalid, expected an Axis2 ConfigurationContext instance");
}
}
// set the configuration context
serverContextInformation.setServerContext(configurationContext);
// set the ServerContextInformation as a parameter
Parameter serverContextParameter =
new Parameter(SynapseConstants.SYNAPSE_SERVER_CTX_INFO, serverContextInformation);
// set the ServerConfiguration as a parameter
Parameter serverConfigParameter =
new Parameter(SynapseConstants.SYNAPSE_SERVER_CONFIG_INFO, serverConfigurationInformation);
try {
configurationContext.getAxisConfiguration().addParameter(serverContextParameter);
configurationContext.getAxisConfiguration().addParameter(serverConfigParameter);
} catch (AxisFault ignored) {
log.fatal("Error adding the parameter to the Axis Configuration");
}
// we retrieve these properties to initialize the task scheduler in the environment
Object repo = serverContextInformation.getProperty(TaskConstants.TASK_DESCRIPTION_REPOSITORY);
Object taskScheduler = serverContextInformation.getProperty(TaskConstants.TASK_SCHEDULER);
if (repo != null && (repo instanceof TaskDescriptionRepository)) {
this.taskDescriptionRepository = (TaskDescriptionRepository) repo;
}
if (taskScheduler != null && (taskScheduler instanceof TaskScheduler)) {
this.taskScheduler = (TaskScheduler) taskScheduler;
}
addDefaultBuildersAndFormatters(configurationContext.getAxisConfiguration());
initDataSourceHelper(serverContextInformation);
initSharedSecretCallbackHandlerCache(serverContextInformation);
initEnterpriseBeanstalkHolder(serverContextInformation);
initialized = true;
}
