* @throws Exception -
* error
*/
private int attachToServices(boolean redeploy, String aServiceUri, int howMany,
ProcessingContainer aProcessingContainer) throws Exception {
VinciServiceInfo serviceInfo = null;
// Retrieve configuration information for the CasProcessor. This is the configuration from the
// CPE descriptor
CasProcessorConfiguration casProcessorConfig = aProcessingContainer
.getCasProcessorConfiguration();
ArrayList serviceList = null;
// Check if this Cas Processor has exclusive service access. Meaning it requires service per
// proxy.
boolean exclusiveAccess = false;
String serviceAccess = casProcessorConfig.getDeploymentParameter("service-access");
if (serviceAccess != null && serviceAccess.equalsIgnoreCase("exclusive")) {
if (UIMAFramework.getLogger().isLoggable(Level.FINEST)) {
UIMAFramework.getLogger(this.getClass()).logrb(
Level.FINEST,
this.getClass().getName(),
"initialize",
CPMUtils.CPM_LOG_RESOURCE_BUNDLE,
"UIMA_CPM_cp_with_exclusive_access__FINEST",
new Object[] { Thread.currentThread().getName(), aProcessingContainer.getName(),
casProcessorConfig.getDeploymentType() });
}
exclusiveAccess = true;
// The following is true if the service just crashed and we are trying to recover. The
// container in this case
// should contain a reference to the Cas Processor that failed.
if (((ProcessingContainer_Impl) aProcessingContainer).failedCasProcessorList.size() > 0) {
// In case the service starts on the same port as before it crashed, mark it as
// available in the current service list
if (UIMAFramework.getLogger().isLoggable(Level.FINEST)) {
UIMAFramework.getLogger(this.getClass()).logrb(
Level.FINEST,
this.getClass().getName(),
"initialize",
CPMUtils.CPM_LOG_RESOURCE_BUNDLE,
"UIMA_CPM_retrieve_cp_from_failed_cplist__FINEST",
new Object[] { Thread.currentThread().getName(), aProcessingContainer.getName(),
casProcessorConfig.getDeploymentType() });
}
CasProcessor processor = (CasProcessor) ((ProcessingContainer_Impl) aProcessingContainer).failedCasProcessorList
.get(0);
// Extract old (stale) proxy from the CAS Processor
VinciTAP tap = ((NetworkCasProcessorImpl) processor).getProxy();
if (tap != null) {
// Since the new service may have started on the same machine and the same port, make sure
// that the
// current list is updated so that the service can be again connected to.
String service_host = tap.getServiceHost();
int service_port = tap.getServicePort();
// Go through all services in the in-use service list and try to find one that matches
// host and port
// If found, change the state of the service to available again.
for (int i = 0; currentServiceList != null && i < currentServiceList.size(); i++) {
VinciServiceInfo si = (VinciServiceInfo) currentServiceList.get(i);
if (si.getHost().equals(service_host) && si.getPort() == service_port) {
si.setAvailable(true);
}
}
}
}