| /** |
| * 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.cmis; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.impl.DefaultProducer; |
| import org.apache.chemistry.opencmis.client.api.ItemIterable; |
| import org.apache.chemistry.opencmis.client.api.QueryResult; |
| |
| /** |
| * The CMIS Query producer. |
| */ |
| public class CMISQueryProducer extends DefaultProducer { |
| |
| private final CMISSessionFacadeFactory sessionFacadeFactory; |
| private CMISSessionFacade sessionFacade; |
| |
| public CMISQueryProducer(CMISEndpoint endpoint, CMISSessionFacadeFactory sessionFacadeFactory) { |
| super(endpoint); |
| this.sessionFacadeFactory = sessionFacadeFactory; |
| this.sessionFacade = null; |
| } |
| |
| public void process(Exchange exchange) throws Exception { |
| List<Map<String, Object>> nodes = executeQuery(exchange); |
| exchange.getOut().setBody(nodes); |
| exchange.getOut().setHeader(CamelCMISConstants.CAMEL_CMIS_RESULT_COUNT, nodes.size()); |
| } |
| |
| private List<Map<String, Object>> executeQuery(Exchange exchange) throws Exception { |
| String query = exchange.getIn().getMandatoryBody(String.class); |
| Boolean retrieveContent = getRetrieveContent(exchange); |
| Integer readSize = getReadSize(exchange); |
| |
| ItemIterable<QueryResult> itemIterable = getSessionFacade().executeQuery(query); |
| return getSessionFacade().retrieveResult(retrieveContent, readSize, itemIterable); |
| } |
| |
| private Integer getReadSize(Exchange exchange) { |
| return exchange.getIn().getHeader(CamelCMISConstants.CAMEL_CMIS_READ_SIZE, Integer.class); |
| } |
| |
| private Boolean getRetrieveContent(Exchange exchange) { |
| return exchange.getIn().getHeader(CamelCMISConstants.CAMEL_CMIS_RETRIEVE_CONTENT, Boolean.class); |
| } |
| |
| private CMISSessionFacade getSessionFacade() throws Exception { |
| if (sessionFacade == null) { |
| sessionFacade = sessionFacadeFactory.create(); |
| sessionFacade.initSession(); |
| } |
| |
| return sessionFacade; |
| } |
| } |