init

src/main/java/com/eactive/eai/common/jms/JmsServiceLocator.java

@@ -0,0 +1,114 @@
+package com.eactive.eai.common.jms;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.jms.Queue;
+import javax.jms.QueueConnectionFactory;
+import javax.jms.Topic;
+import javax.jms.TopicConnectionFactory;
+import javax.naming.InitialContext;
+import javax.naming.NamingException;
+
+import com.eactive.eai.common.exception.ExceptionUtil;
+import com.eactive.eai.common.util.Logger;
+import com.eactive.eai.common.util.ServiceLocatorException;
+
+public class JmsServiceLocator {
+	static private Logger logger = Logger.getLogger(Logger.LOGGER_DEFAULT);
+	private static JmsServiceLocator instance;
+	private InitialContext initial;
+	private Map cache;
+
+	protected JmsServiceLocator() throws ServiceLocatorException {
+		try {
+			initial = new InitialContext();
+			cache = Collections.synchronizedMap(new HashMap());
+		} catch (NamingException e) {
+			throw new ServiceLocatorException(ExceptionUtil.getErrorCode(e, "RECEAICUL101"));
+		} catch (Exception e) {
+			throw new ServiceLocatorException(ExceptionUtil.getErrorCode(e, "RECEAICUL102"));
+		}
+	}
+
+	public static synchronized JmsServiceLocator getInstance() throws ServiceLocatorException {
+		if (instance == null) {
+			instance = new JmsServiceLocator();
+			return instance;
+		} else {
+			return instance;
+		}
+	}
+
+	public QueueConnectionFactory getQueueConnectionFactory(String qConnFactoryName) throws ServiceLocatorException {
+		QueueConnectionFactory factory = null;
+
+		try {
+			if (cache.containsKey(qConnFactoryName)) {
+				factory = (QueueConnectionFactory) cache.get(qConnFactoryName);
+			} else {
+				factory = (QueueConnectionFactory) initial.lookup(qConnFactoryName);
+				cache.put(qConnFactoryName, factory);
+			}
+		} catch (NamingException ne) {
+			throw new ServiceLocatorException(ExceptionUtil.getErrorCode(ne, "RECEAICUL113"));
+		} catch (Exception e) {
+			throw new ServiceLocatorException(ExceptionUtil.getErrorCode(e, "RECEAICUL114"));
+		}
+		return factory;
+	}
+
+	public Queue getQueue(String queueName) throws ServiceLocatorException {
+		Queue queue = null;
+		try {
+			if (cache.containsKey(queueName)) {
+				queue = (Queue) cache.get(queueName);
+			} else {
+				queue = (Queue) initial.lookup(queueName);
+				cache.put(queueName, queue);
+			}
+		} catch (NamingException ne) {
+			throw new ServiceLocatorException(ExceptionUtil.getErrorCode(ne, "RECEAICUL115"));
+		} catch (Exception e) {
+			throw new ServiceLocatorException(ExceptionUtil.getErrorCode(e, "RECEAICUL116"));
+		}
+		return queue;
+	}
+
+	public TopicConnectionFactory getTopicConnectionFactory(String topicConnFactoryName)
+			throws ServiceLocatorException {
+		TopicConnectionFactory factory = null;
+
+		try {
+			if (cache.containsKey(topicConnFactoryName)) {
+				factory = (TopicConnectionFactory) cache.get(topicConnFactoryName);
+			} else {
+				factory = (TopicConnectionFactory) initial.lookup(topicConnFactoryName);
+				cache.put(topicConnFactoryName, factory);
+			}
+		} catch (NamingException ne) {
+			throw new ServiceLocatorException(ExceptionUtil.getErrorCode(ne, "RECEAICUL117"));
+		} catch (Exception e) {
+			throw new ServiceLocatorException(ExceptionUtil.getErrorCode(e, "RECEAICUL118"));
+		}
+		return factory;
+	}
+
+	public Topic getTopic(String topicName) throws ServiceLocatorException {
+		Topic topic = null;
+		try {
+			if (cache.containsKey(topicName)) {
+				topic = (Topic) cache.get(topicName);
+			} else {
+				topic = (Topic) initial.lookup(topicName);
+				cache.put(topicName, topic);
+			}
+		} catch (NamingException ne) {
+			throw new ServiceLocatorException(ExceptionUtil.getErrorCode(ne, "RECEAICUL119"));
+		} catch (Exception e) {
+			throw new ServiceLocatorException(ExceptionUtil.getErrorCode(e, "RECEAICUL120"));
+		}
+		return topic;
+	}
+}