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package org.glassfish.batch;
import com.ibm.batch.container.config.DatabaseConfigurationBean;
import com.ibm.batch.container.config.GlassfishThreadPoolConfigurationBean;
import com.ibm.batch.container.config.IBatchConfig;
import com.ibm.batch.container.services.ServicesManager;
import org.glassfish.hk2.api.PostConstruct;
import org.glassfish.hk2.runlevel.RunLevel;
import org.jvnet.hk2.annotations.Optional;
import org.jvnet.hk2.annotations.Service;
import javax.ejb.Singleton;
import javax.inject.Inject;
import java.util.concurrent.atomic.AtomicBoolean;
/**
* Helper class to get values for Batch Runtime. Follows
* zero-config rules by using default values when the
* batch-runtime config object is not present in
* domain.xml
*
* @author Mahesh Kannan
*/
@Service
@Singleton
@RunLevel(value = 15)
public class BatchRuntimeHelper
implements PostConstruct {
@Inject
@Optional
BatchRuntime batchRuntimeConfiguration;
private DatabaseConfigurationBeanProxy databaseConfigurationBeanProxy;
private GlassFishThreadPoolConfigurationBeanProxy glassFishThreadPoolConfigurationBeanProxy;
private JobExecutorService jobExecutorService;
private PersistenceStore persistenceStore;
private AtomicBoolean initialized = new AtomicBoolean(false);
public void checkAndInitializeBatchRuntime() {
if (!initialized.get()) {
synchronized (this) {
if (!initialized.get()) {
/*
Java2DBProcessorHelper java2DBProcessorHelper = new Java2DBProcessorHelper(this.getClass().getSimpleName());
File ddlDir = new File(serverContext.getInstallRoot(), "/lib");
//Temporary fix till batch_{db_vendor}.sql is part of the distribution
File sqlFile = new File(ddlDir, "batch_derby.sql");
if (sqlFile.exists()) {
java2DBProcessorHelper.executeDDLStatement(ddlDir.getCanonicalPath() + CREATE_TABLE_DDL_NAME, dsName);
} else {
logger.log(Level.WARNING, sqlFile.getAbsolutePath() + " does NOT exist");
}
*/
initialized.set(true);
}
}
}
}
@Override
public void postConstruct() {
registerProxies();
}
public void registerProxies() {
try {
if (batchRuntimeConfiguration != null) {
jobExecutorService = batchRuntimeConfiguration.getJobExecutorService();
persistenceStore = batchRuntimeConfiguration.getPersistenceStore();
}
ServicesManager servicesManager = ServicesManager.getInstance();
IBatchConfig batchConfig = servicesManager.getBatchRuntimeConfiguration();
databaseConfigurationBeanProxy = new DatabaseConfigurationBeanProxy(this);
batchConfig.setDatabaseConfigurationBean(databaseConfigurationBeanProxy);
glassFishThreadPoolConfigurationBeanProxy = new GlassFishThreadPoolConfigurationBeanProxy(this);
batchConfig.setGlassfishThreadPoolConfigurationBean(glassFishThreadPoolConfigurationBeanProxy);
} catch (Throwable th) {
//TODO: Log
}
}
/*package*/
int getMaxThreadPoolSize() {
return jobExecutorService != null
? jobExecutorService.getMaxThreadPoolSize()
: Integer.valueOf(JobExecutorService.MAX_THREAD_POOL_SIZE);
}
/*package*/
int getMinThreadPoolSize() {
return jobExecutorService != null
? jobExecutorService.getMinThreadPoolSize()
: Integer.valueOf(JobExecutorService.MIN_THREAD_POOL_SIZE);
}
/*package*/
int getMaxIdleThreadTimeout() {
return jobExecutorService != null
? jobExecutorService.getMaxIdleThreadTimeoutInSeconds()
: Integer.valueOf(JobExecutorService.MAX_IDLE_THREAD_TIMEOUT_IN_SECONDS);
}
/*package*/
int getMaxQueueSize() {
return jobExecutorService != null
? jobExecutorService.getMaxQueueSize()
: Integer.valueOf(JobExecutorService.MAX_QUEUE_SIZE);
}
/*package*/
String getDataSourceJndiName() {
return persistenceStore != null
? persistenceStore.getDataSourceJndiName()
: PersistenceStore.DEFAULT_DATA_SOURCE_NAME;
}
/*package*/
int getMaxRetentionTime() {
return persistenceStore != null
? persistenceStore.getMaxRetentionTimeInSeconds()
: PersistenceStore.MAX_DATA_RETENTION_TIME_IN_SECONDS;
}
private static class DatabaseConfigurationBeanProxy
extends DatabaseConfigurationBean {
private BatchRuntimeHelper helper;
DatabaseConfigurationBeanProxy(BatchRuntimeHelper helper) {
this.helper = helper;
}
@Override
public String getSchema() {
helper.checkAndInitializeBatchRuntime();
return "APP";
}
@Override
public String getJndiName() {
helper.checkAndInitializeBatchRuntime();
return helper.getDataSourceJndiName();
}
}
private static class GlassFishThreadPoolConfigurationBeanProxy
extends GlassfishThreadPoolConfigurationBean {
private BatchRuntimeHelper helper;
GlassFishThreadPoolConfigurationBeanProxy(BatchRuntimeHelper helper) {
this.helper = helper;
}
@Override
public int getMaxQueueSize() {
helper.checkAndInitializeBatchRuntime();
return helper.getMaxQueueSize();
}
@Override
public int getMinThreadPoolSize() {
helper.checkAndInitializeBatchRuntime();
return helper.getMinThreadPoolSize();
}
@Override
public int getMaxThreadPoolSize() {
helper.checkAndInitializeBatchRuntime();
return helper.getMaxThreadPoolSize();
}
@Override
public int getIdleThreadTimeout() {
helper.checkAndInitializeBatchRuntime();
return helper.getMaxIdleThreadTimeout();
}
}
}