init
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Rinjae
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package com.eactive.eai.common.util;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.Hashtable;
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import java.util.Map;
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import javax.jms.Queue;
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import javax.jms.QueueConnectionFactory;
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import javax.naming.Context;
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import javax.naming.InitialContext;
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import javax.naming.NamingException;
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import javax.sql.DataSource;
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import com.eactive.eai.common.exception.ExceptionUtil;
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/**
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* 1. 기능 : WAS의 각종 서비스를 레퍼런스를 얻어내는 공통 Class
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* 2. 처리 개요 :
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* * -
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* 3. 주의사항
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*
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* @author :
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* @version : v 1.0.0
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* @see : 관련 기능을 참조
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* @since :
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* :
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*/
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public class ServiceLocator {
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/** Eai Logger */
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// static private Logger logger = Logger.getLogger(Logger.LOGGER_DEFAULT);
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/** weblogic.jndi.WLInitialContextFactory */
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public final static String WEBLOGIC_INITIAL_CONTEXT_FACTORY = "weblogic.jndi.WLInitialContextFactory";
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/** ServiceLocator singleton object */
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private static ServiceLocator instance;
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/** JNDI Context object */
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private InitialContext initial;
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/** caching을 위한 collection object */
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private Map<String, Object> cache;
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/**
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* EaiMain start시 t3 url 초기화를 위해 호출된다<br>
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* t3 url을 초기화하고, ServiceLocator singleton object를 생성 초기화한다.
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*/
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/*
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static public void init(String t3Url) {
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try {
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//WEBLOGIC_T3_URL = t3Url;
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instance = new ServiceLocator();
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if (logger.isInfo()) logger.info("ServiceLocator#init() initailized...");
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} catch (ServiceLocatorException e) {
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if (logger.isError()) logger.error("!! Cannot connect to WebLogic Server...");
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if (logger.isError()) logger.error("1. Check if WebLogic Server is alive.");
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if (logger.isError()) logger.error("2. Check if t3Url is correct in config file(server.xml).");
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if (logger.isError()) logger.error(e.getMessage(), e);
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//System.exit(1);
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}
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}
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*/
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/**
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* 1. 기능 : Constructor
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* 2. 처리 개요 :
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* - JNDI Context object를 생성 초기화하고, cache Map object를 생성 초기화한다.
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* 3. 주의사항
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*
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* @exception ServiceLocatorException
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**/
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protected ServiceLocator() throws ServiceLocatorException {
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try {
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/*
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Hashtable env = new Hashtable();
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env.put(Context.INITIAL_CONTEXT_FACTORY, WEBLOGIC_INITIAL_CONTEXT_FACTORY);
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env.put(Context.PROVIDER_URL, WEBLOGIC_T3_URL);
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initial = new InitialContext(env);
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*/
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initial = new InitialContext();
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cache = Collections.synchronizedMap(new HashMap<String, Object>());
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} catch (NamingException e) {
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// throw new ServiceLocatorException(e);
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throw new ServiceLocatorException(ExceptionUtil.getErrorCode(e,"RECEAICUL101"));
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} catch (Exception e) {
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// throw new ServiceLocatorException(e);
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throw new ServiceLocatorException(ExceptionUtil.getErrorCode(e,"RECEAICUL102"));
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}
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}
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/**
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* 1. 기능 : ServiceLocator object를 반환하는 factory method
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* 2. 처리 개요 :
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* - ServiceLocator object를 반환하는 factory method
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* 3. 주의사항
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*
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* @return ServiceLocator
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* @exception
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**/
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public static synchronized ServiceLocator getInstance() throws ServiceLocatorException {
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if ( instance == null ) {
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instance = new ServiceLocator();
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return instance;
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} else {
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return instance;
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}
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}
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/**
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* 1. 기능 : 파라미터 name에 해당하는 DataSource를 lookup해 반환하는 method
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* 2. 처리 개요 :
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* - 파라미터 name에 해당하는 DataSource를 lookup해 반환하는 method
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* 3. 주의사항
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*
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* @param dataSourceName DataSource의 JNDI name
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* @return DataSource JDBC DataSource object
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* @exception ServiceLocatorException
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**/
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public DataSource getDataSource(String dataSourceName)
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throws ServiceLocatorException {
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DataSource dataSource = null;
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try {
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if (cache.containsKey(dataSourceName)) {
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dataSource = (DataSource) cache.get(dataSourceName);
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} else {
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dataSource = (DataSource) initial.lookup(dataSourceName);
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cache.put(dataSourceName,dataSource);
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// already made connection pool
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//throw new ServiceLocatorException("DataSource Name [" + dataSourceName + "] does not exist.");
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}
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} catch (Exception e) {
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// throw new ServiceLocatorException(e);
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throw new ServiceLocatorException(ExceptionUtil.getErrorCode(e,"RECEAICUL103"));
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}
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return dataSource;
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}
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public void putDataSource(String dataSourceName, DataSource dataSource) {
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cache.put(dataSourceName, dataSource);
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}
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/**
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* 1. 기능 : 파라미터 name에 해당하는 Remote 서버의 DataSource를 lookup해 반환하는 method
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* 2. 처리 개요 :
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* - 파라미터 name에 해당하는 Remote 서버의 DataSource를 lookup해 반환하는 method
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* 3. 주의사항
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*
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* @param providerUrl Remote URI
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* @param dataSourceName DataSource의 JNDI name
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* @return DataSource JDBC DataSource object
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* @exception ServiceLocatorException
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**/
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public DataSource getRemoteDataSource(String providerUrl, String dataSourceName) {
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DataSource dataSource = null;
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try {
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if (cache.containsKey(dataSourceName)) {
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dataSource = (DataSource) cache.get(dataSourceName);
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} else {
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Hashtable<String, Object> env = new Hashtable<String, Object>();
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env.put(Context.INITIAL_CONTEXT_FACTORY, WEBLOGIC_INITIAL_CONTEXT_FACTORY);
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env.put(Context.PROVIDER_URL, providerUrl);
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initial = new InitialContext(env);
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dataSource = (DataSource)initial.lookup(dataSourceName);
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cache.put(dataSourceName,dataSource);
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}
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return dataSource;
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} catch (Exception e) {
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// throw new RuntimeException(e);
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throw new RuntimeException(ExceptionUtil.getErrorCode(e,"RECEAICUL104"));
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}
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}
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/**
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* 1. 기능 : QueueConnectionFactory를 반환하는 method
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* 2. 처리 개요 :
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* - QueueConnectionFactory를 반환하는 method
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* 3. 주의사항
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*
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* @param qConnFactoryName QueueConnectionFactory의 JNDI name
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* @return QueueConnectionFactory object
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* @exception ServiceLocatorException
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*/
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public QueueConnectionFactory getQueueConnectionFactory(String qConnFactoryName)
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throws ServiceLocatorException {
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QueueConnectionFactory factory = null;
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try {
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if (cache.containsKey(qConnFactoryName)) {
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factory = (QueueConnectionFactory) cache.get(qConnFactoryName);
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} else {
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factory = (QueueConnectionFactory) initial.lookup(qConnFactoryName);
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cache.put(qConnFactoryName, factory);
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}
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} catch (NamingException ne) {
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//throw new ServiceLocatorException(ne);
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throw new ServiceLocatorException(ExceptionUtil.getErrorCode(ne,"RECEAICUL113"));
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} catch (Exception e) {
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//throw new ServiceLocatorException(e);
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throw new ServiceLocatorException(ExceptionUtil.getErrorCode(e,"RECEAICUL114"));
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}
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return factory;
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}
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/**
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* 1. 기능 : Queue를 반환하는 method
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* 2. 처리 개요 :
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* - Queue를 반환하는 method
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* 3. 주의사항
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*
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* @param queueName Queue의 JNDI name
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* @return Queue object
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* @exception ServiceLocatorException
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*/
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public Queue getQueue(String queueName) throws ServiceLocatorException {
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Queue queue = null;
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try {
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if (cache.containsKey(queueName)) {
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queue = (Queue) cache.get(queueName);
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} else {
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queue = (Queue) initial.lookup(queueName);
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cache.put(queueName, queue);
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}
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} catch (NamingException ne) {
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//throw new ServiceLocatorException(ne);
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throw new ServiceLocatorException(ExceptionUtil.getErrorCode(ne,"RECEAICUL115"));
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} catch (Exception e) {
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//throw new ServiceLocatorException(e);
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throw new ServiceLocatorException(ExceptionUtil.getErrorCode(e,"RECEAICUL116"));
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}
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return queue;
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}
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}
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