/**
* 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.camel.component.ibatis;
import java.util.Iterator;
import com.ibatis.sqlmap.client.SqlMapClient;
import org.apache.camel.Exchange;
import org.apache.camel.Message;
import org.apache.camel.impl.DefaultProducer;
import org.apache.camel.util.ObjectHelper;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* @version $Revision: 773474 $
*/
public class IBatisProducer extends DefaultProducer {
private static final Log LOG = LogFactory.getLog(IBatisProducer.class);
private String statement;
private final IBatisEndpoint endpoint;
public IBatisProducer(IBatisEndpoint endpoint) {
super(endpoint);
this.endpoint = endpoint;
this.statement = endpoint.getEntityName();
}
@Override
public IBatisEndpoint getEndpoint() {
return (IBatisEndpoint) super.getEndpoint();
}
public void process(Exchange exchange) throws Exception {
switch (endpoint.getStatementType()) {
case QueryForObject:
doQueryForObject(exchange); break;
case QueryForList:
doQueryForList(exchange); break;
case Insert:
doInsert(exchange); break;
case Update:
doUpdate(exchange); break;
case Delete:
doDelete(exchange); break;
default:
throw new IllegalArgumentException("Unsupported statementType: " + endpoint.getStatementType());
}
}
private void doQueryForObject(Exchange exchange) throws Exception {
SqlMapClient client = endpoint.getSqlClient();
Object result;
Object in = exchange.getIn().getBody();
if (in != null) {
if (LOG.isTraceEnabled()) {
LOG.trace("QueryForObject: " + in + " using statement: " + statement);
}
result = client.queryForObject(statement, in);
} else {
if (LOG.isTraceEnabled()) {
LOG.trace("QueryForObject using statement: " + statement);
}
result = client.queryForObject(statement);
}
doProcessResult(exchange, result);
}
private void doQueryForList(Exchange exchange) throws Exception {
SqlMapClient client = endpoint.getSqlClient();
Object result;
Object in = exchange.getIn().getBody();
if (in != null) {
if (LOG.isTraceEnabled()) {
LOG.trace("QueryForList: " + in + " using statement: " + statement);
}
result = client.queryForList(statement, in);
} else {
if (LOG.isTraceEnabled()) {
LOG.trace("QueryForList using statement: " + statement);
}
result = client.queryForList(statement);
}
doProcessResult(exchange, result);
}
private void doInsert(Exchange exchange) throws Exception {
SqlMapClient client = endpoint.getSqlClient();
Object result;
Object in = exchange.getIn().getBody();
if (in != null) {
// lets handle arrays or collections of objects
Iterator iter = ObjectHelper.createIterator(in);
while (iter.hasNext()) {
Object value = iter.next();
if (LOG.isTraceEnabled()) {
LOG.trace("Inserting: " + value + " using statement: " + statement);
}
result = client.insert(statement, value);
doProcessResult(exchange, result);
}
} else {
if (LOG.isTraceEnabled()) {
LOG.trace("Inserting using statement: " + statement);
}
result = client.insert(statement);
doProcessResult(exchange, result);
}
}
private void doUpdate(Exchange exchange) throws Exception {
SqlMapClient client = endpoint.getSqlClient();
Object result;
Object in = exchange.getIn().getBody();
if (in != null) {
// lets handle arrays or collections of objects
Iterator iter = ObjectHelper.createIterator(in);
while (iter.hasNext()) {
Object value = iter.next();
if (LOG.isTraceEnabled()) {
LOG.trace("Updating: " + value + " using statement: " + statement);
}
result = client.update(statement, value);
doProcessResult(exchange, result);
}
} else {
if (LOG.isTraceEnabled()) {
LOG.trace("Updating using statement: " + statement);
}
result = client.update(statement);
doProcessResult(exchange, result);
}
}
private void doDelete(Exchange exchange) throws Exception {
SqlMapClient client = endpoint.getSqlClient();
Object result;
Object in = exchange.getIn().getBody();
if (in != null) {
// lets handle arrays or collections of objects
Iterator iter = ObjectHelper.createIterator(in);
while (iter.hasNext()) {
Object value = iter.next();
if (LOG.isTraceEnabled()) {
LOG.trace("Deleting: " + value + " using statement: " + statement);
}
result = client.delete(statement, value);
doProcessResult(exchange, result);
}
} else {
if (LOG.isTraceEnabled()) {
LOG.trace("Deleting using statement: " + statement);
}
result = client.delete(statement);
doProcessResult(exchange, result);
}
}
private void doProcessResult(Exchange exchange, Object result) {
Message msg = exchange.getOut();
msg.setBody(result);
msg.setHeader("org.apache.camel.ibatis.queryName", statement);
}
}