/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/**
* To change this template use File | Settings | File Templates.
*/
package org.apache.synapse.commons.datasource;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.synapse.commons.SynapseCommonsException;
import org.apache.synapse.commons.datasource.factory.DataSourceFactory;
import org.apache.synapse.commons.jmx.MBeanRepository;
import javax.sql.DataSource;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
/**
* Keeps all DataSources in the memory
*/
public class InMemoryDataSourceRepository implements DataSourceRepository {
private final static Log log = LogFactory.getLog(InMemoryDataSourceRepository.class);
private final Map<String, DataSource> dataSources = new HashMap<String, DataSource>();
private static final MBeanRepository REPOSITORY = DatasourceMBeanRepository.getInstance();
public InMemoryDataSourceRepository() {
}
/**
* Keep DataSource in the Local store.
*
* @param dataSourceInformation the information describing a data source
* @see DataSourceRepository#register(DataSourceInformation)
*/
public void register(DataSourceInformation dataSourceInformation) {
if (dataSourceInformation == null) {
throw new SynapseCommonsException("DataSourceInformation cannot be found.", log);
}
DataSource dataSource = DataSourceFactory.createDataSource(dataSourceInformation);
if (dataSource == null) {
if (log.isDebugEnabled()) {
log.debug("DataSource cannot be created or" +
" found for DataSource Information " + dataSourceInformation);
}
return;
}
String name = dataSourceInformation.getDatasourceName();
if (log.isDebugEnabled()) {
log.debug("Registering a DatSource with name : " + name + " in Local Pool");
}
REPOSITORY.addMBean(name, new DBPoolView(name));
dataSources.put(name, dataSource);
}
public void unRegister(String name) {
if (name == null || "".equals(name)) {
throw new SynapseCommonsException("Name of the datasource to be removed is empty or " +
"null", log);
}
dataSources.remove(name);
REPOSITORY.removeMBean(name);
}
/**
* Get a DataSource from Local store
*
* @see DataSourceRepository#lookUp(String)
*/
public DataSource lookUp(String name) {
if (name == null || "".equals(name)) {
throw new SynapseCommonsException("Name of the datasource to be looked up is empty or" +
"null", log);
}
return dataSources.get(name);
}
public void init(Properties properties) {
// nothing
}
public boolean isInitialized() {
return true;
}
public void clear() {
if (!dataSources.isEmpty()) {
log.info("Clearing all in-memory datasources ");
dataSources.clear();
}
REPOSITORY.clear();
}
}