| /** |
| * 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.ExchangeHelper; |
| import org.apache.camel.util.ObjectHelper; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * @version |
| */ |
| public class IBatisProducer extends DefaultProducer { |
| private static final Logger LOG = LoggerFactory.getLogger(IBatisProducer.class); |
| private String statement; |
| private IBatisEndpoint endpoint; |
| |
| public IBatisProducer(IBatisEndpoint endpoint) { |
| super(endpoint); |
| this.endpoint = endpoint; |
| this.statement = endpoint.getStatement(); |
| } |
| |
| 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.getSqlMapClient(); |
| |
| Object result; |
| Object in = exchange.getIn().getBody(); |
| if (in != null) { |
| LOG.trace("QueryForObject: {} using statement: {}", in, statement); |
| result = client.queryForObject(statement, in); |
| } else { |
| LOG.trace("QueryForObject using statement: {}", statement); |
| result = client.queryForObject(statement); |
| } |
| |
| doProcessResult(exchange, result); |
| } |
| |
| private void doQueryForList(Exchange exchange) throws Exception { |
| SqlMapClient client = endpoint.getSqlMapClient(); |
| |
| Object result; |
| Object in = exchange.getIn().getBody(); |
| if (in != null) { |
| LOG.trace("QueryForList: {} using statement: {}", in, statement); |
| result = client.queryForList(statement, in); |
| } else { |
| LOG.trace("QueryForList using statement: {}", statement); |
| result = client.queryForList(statement); |
| } |
| |
| doProcessResult(exchange, result); |
| } |
| |
| private void doInsert(Exchange exchange) throws Exception { |
| SqlMapClient client = endpoint.getSqlMapClient(); |
| |
| 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(); |
| LOG.trace("Inserting: {} using statement: {}", value, statement); |
| result = client.insert(statement, value); |
| doProcessResult(exchange, result); |
| } |
| } else { |
| LOG.trace("Inserting using statement: {}", statement); |
| result = client.insert(statement); |
| doProcessResult(exchange, result); |
| } |
| } |
| |
| private void doUpdate(Exchange exchange) throws Exception { |
| SqlMapClient client = endpoint.getSqlMapClient(); |
| |
| 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(); |
| LOG.trace("Updating: {} using statement: {}", value, statement); |
| result = client.update(statement, value); |
| doProcessResult(exchange, result); |
| } |
| } else { |
| LOG.trace("Updating using statement: {}", statement); |
| result = client.update(statement); |
| doProcessResult(exchange, result); |
| } |
| } |
| |
| private void doDelete(Exchange exchange) throws Exception { |
| SqlMapClient client = endpoint.getSqlMapClient(); |
| |
| 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(); |
| LOG.trace("Deleting: {} using statement: {}", value, statement); |
| result = client.delete(statement, value); |
| doProcessResult(exchange, result); |
| } |
| } else { |
| LOG.trace("Deleting using statement: {}", statement); |
| result = client.delete(statement); |
| doProcessResult(exchange, result); |
| } |
| } |
| |
| private void doProcessResult(Exchange exchange, Object result) { |
| if (endpoint.getStatementType() == StatementType.QueryForList || endpoint.getStatementType() == StatementType.QueryForObject) { |
| Message answer = exchange.getIn(); |
| if (ExchangeHelper.isOutCapable(exchange)) { |
| answer = exchange.getOut(); |
| // preserve headers |
| answer.getHeaders().putAll(exchange.getIn().getHeaders()); |
| } |
| // set the result as body for insert |
| answer.setBody(result); |
| |
| answer.setHeader(IBatisConstants.IBATIS_RESULT, result); |
| answer.setHeader(IBatisConstants.IBATIS_STATEMENT_NAME, statement); |
| } else { |
| Message msg = exchange.getIn(); |
| msg.setHeader(IBatisConstants.IBATIS_RESULT, result); |
| msg.setHeader(IBatisConstants.IBATIS_STATEMENT_NAME, statement); |
| } |
| } |
| } |