/*
* 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.
*/
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 javax.sql.DataSource;
import java.util.Properties;
/**
* Manages data sources defined in the synapse. This is an observer of the DataSourceInformationRepository
*/
public class DataSourceRepositoryManager implements DataSourceInformationRepositoryListener {
private static final Log log = LogFactory.getLog(DataSourceRepositoryManager.class);
private final InMemoryDataSourceRepository inMemoryDataSourceRepository;
private final JNDIBasedDataSourceRepository jndiBasedDataSourceRepository;
public DataSourceRepositoryManager(InMemoryDataSourceRepository inMemoryDataSourceRepository,
JNDIBasedDataSourceRepository jndiBasedDataSourceRepository) {
this.inMemoryDataSourceRepository = inMemoryDataSourceRepository;
this.jndiBasedDataSourceRepository = jndiBasedDataSourceRepository;
}
/**
* Find a DataSource using given name
*
* @param name Name of the DataSource to be found
* @return DataSource if found , otherwise null
*/
public DataSource getDataSource(String name) {
if (name == null || "".equals(name)) {
throw new SynapseCommonsException("DataSource name cannot be found.", log);
}
DataSource result = inMemoryDataSourceRepository.lookUp(name);
if (result != null) {
if (log.isDebugEnabled()) {
log.debug("DataSource is found in the in-memory data source repository." +
" Datasource name is : " + name);
}
return result;
}
if (jndiBasedDataSourceRepository.isInitialized()) {
result = jndiBasedDataSourceRepository.lookUp(name);
if (result != null) {
if (log.isDebugEnabled()) {
log.debug("DataSource is found in the JNDI data source repository." +
" Datasource name is : " + name);
}
return result;
}
}
if (log.isDebugEnabled()) {
log.debug("Cannot find a datasource with name : " + name + " either in in-memory or" +
" JNDI datasource repositories");
}
return result;
}
public void addDataSourceInformation(DataSourceInformation dataSourceInformation) {
assertDataSourceInformationNull(dataSourceInformation);
String repositoryType = dataSourceInformation.getRepositoryType();
if (log.isDebugEnabled()) {
log.debug("Registering a datasource in the repository : " + repositoryType + "." +
" DataSource information is : " + dataSourceInformation);
}
if (DataSourceConstants.PROP_REGISTRY_JNDI.equals(repositoryType)) {
jndiBasedDataSourceRepository.register(dataSourceInformation);
} else {
inMemoryDataSourceRepository.register(dataSourceInformation);
}
}
public void removeDataSourceInformation(DataSourceInformation dataSourceInformation) {
assertDataSourceInformationNull(dataSourceInformation);
String repositoryType = dataSourceInformation.getRepositoryType();
if (log.isDebugEnabled()) {
log.debug("Un-Registering a datasource from the repository : " + repositoryType + "." +
" DataSource information is : " + dataSourceInformation);
}
if (DataSourceConstants.PROP_REGISTRY_JNDI.equals(repositoryType)) {
jndiBasedDataSourceRepository.unRegister(dataSourceInformation.getDatasourceName());
} else {
inMemoryDataSourceRepository.unRegister(dataSourceInformation.getDatasourceName());
}
}
public void reConfigure(Properties confProperties) {
if (log.isDebugEnabled()) {
log.debug("Reconfiguring datasource repositories ");
}
jndiBasedDataSourceRepository.init(confProperties);
inMemoryDataSourceRepository.init(confProperties);
}
/**
* Clear all DataSource Repositories
*/
public void clear() {
if (log.isDebugEnabled()) {
log.debug("Clearing datasource repositories ");
}
if (inMemoryDataSourceRepository.isInitialized()) {
inMemoryDataSourceRepository.clear();
}
if (jndiBasedDataSourceRepository.isInitialized()) {
jndiBasedDataSourceRepository.clear();
}
}
private void assertDataSourceInformationNull(DataSourceInformation dataSourceInformation) {
if (dataSourceInformation == null) {
throw new SynapseCommonsException("Provided DataSource Information instance is null",
log);
}
}
}