/*
*
* 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.airavata.persistance.registry.jpa.resources;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.locks.Lock;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import org.apache.airavata.persistance.registry.jpa.Resource;
import org.apache.airavata.persistance.registry.jpa.ResourceType;
import org.apache.airavata.persistance.registry.jpa.ResourceUtils;
import org.apache.airavata.persistance.registry.jpa.model.Configuration;
import org.apache.airavata.persistance.registry.jpa.model.Configuration_PK;
import org.apache.airavata.persistance.registry.jpa.utils.QueryGenerator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class ConfigurationResource extends AbstractResource {
private final static Logger logger = LoggerFactory.getLogger(ConfigurationResource.class);
private String configKey;
private String configVal;
private Timestamp expireDate;
private String categoryID = ConfigurationConstants.CATEGORY_ID_DEFAULT_VALUE;
public ConfigurationResource() {
}
/**
*
* @param configKey configuration key
* @param configVal configuration value
*/
public ConfigurationResource(String configKey, String configVal) {
this.configKey = configKey;
this.configVal = configVal;
}
/**
* Since Configuration does not depend on any other data structures at the
* system, this method is not valid
* @param type child resource types
* @return UnsupportedOperationException
*/
public Resource create(ResourceType type) {
logger.error("Unsupported operation for configuration resource " +
"since there are no child resources generated by configuration resource.. ",
new UnsupportedOperationException());
throw new UnsupportedOperationException();
}
/**
* Since Configuration does not depend on any other data structures at the
* system, this method is not valid
* @param type child resource types
* @param name name of the child resource
* throws UnsupportedOperationException
*/
public void remove(ResourceType type, Object name) {
logger.error("Unsupported operation for configuration resource " +
"since there are no child resources generated by configuration resource.. ",
new UnsupportedOperationException());
throw new UnsupportedOperationException();
}
/**
* Since Configuration does not depend on any other data structures at the
* system, this method is not valid
* @param type child resource types
* @param name name of the child resource
* @return UnsupportedOperationException
*/
public Resource get(ResourceType type, Object name) {
logger.error("Unsupported operation for configuration resource " +
"since there are no child resources generated by configuration resource.. ",
new UnsupportedOperationException());
throw new UnsupportedOperationException();
}
/**
* key should be the configuration name
* @param keys names
* @return list of ConfigurationResources
*/
public List<Resource> populate(Object[] keys) {
List<Resource> list = new ArrayList<Resource>();
EntityManager em = ResourceUtils.getEntityManager();
em.getTransaction().begin();
QueryGenerator queryGenerator = new QueryGenerator(CONFIGURATION);
queryGenerator.setParameter(ConfigurationConstants.CONFIG_KEY, keys[0]);
Query q = queryGenerator.selectQuery(em);
List resultList = q.getResultList();
if (resultList.size() != 0) {
for (Object result : resultList) {
Configuration configuration = (Configuration) result;
ConfigurationResource configurationResource =
(ConfigurationResource)Utils.getResource(ResourceType.CONFIGURATION, configuration);
list.add(configurationResource);
}
}
em.getTransaction().commit();
em.close();
return list;
}
/**
*
* Since Configuration does not depend on any other data structures at the
* system, this method is not valid
* @param type child resource types
* @return UnsupportedOperationException
*/
public List<Resource> get(ResourceType type) {
logger.error("Unsupported operation for configuration resource " +
"since there are no child resources generated by configuration resource.. ",
new UnsupportedOperationException());
throw new UnsupportedOperationException();
}
/**
*
* @param expireDate expire date of the configuration
*/
public void setExpireDate(Timestamp expireDate) {
this.expireDate = expireDate;
}
/**
* save configuration to database
*/
public synchronized void save() {
Lock lock = ResourceUtils.getLock();
lock.lock();
try {
EntityManager em = ResourceUtils.getEntityManager();
//whether existing
Configuration existing = em.find(Configuration.class, new Configuration_PK(configKey, configVal, categoryID));
em.close();
em = ResourceUtils.getEntityManager();
em.getTransaction().begin();
Configuration configuration = new Configuration();
configuration.setConfig_key(configKey);
configuration.setConfig_val(configVal);
configuration.setExpire_date(expireDate);
configuration.setCategory_id(categoryID);
if (existing != null) {
existing.setExpire_date(expireDate);
existing.setCategory_id(categoryID);
configuration = em.merge(existing);
} else {
em.merge(configuration);
}
em.getTransaction().commit();
em.close();
}
finally {
lock.unlock();
}
}
/**
* Since Configuration does not depend on any other data structures at the
* system, this method is not valid
* @param type child resource types
* @param name of the child resource
* @return UnsupportedOperationException
*/
public boolean isExists(ResourceType type, Object name) {
logger.error("Unsupported operation for configuration resource " +
"since there are no child resources generated by configuration resource.. ",
new UnsupportedOperationException());
throw new UnsupportedOperationException();
}
/**
*
* @return configuration value
*/
public String getConfigVal() {
return configVal;
}
/**
*
* @param configKey configuration key
*/
public void setConfigKey(String configKey) {
this.configKey = configKey;
}
/**
*
* @param configVal configuration value
*/
public void setConfigVal(String configVal) {
this.configVal = configVal;
}
public String getCategoryID() {
return categoryID;
}
public void setCategoryID(String categoryID) {
this.categoryID = categoryID;
}
}