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git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2005 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Derek Hulley
161
source/java/org/alfresco/example/SimpleExampleWithContent.java
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161
source/java/org/alfresco/example/SimpleExampleWithContent.java
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/*
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* Copyright (C) 2005 Alfresco, Inc.
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*
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* Licensed under the Mozilla Public License version 1.1
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* with a permitted attribution clause. You may obtain a
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* copy of the License at
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*
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* http://www.alfresco.org/legal/license.txt
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific
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* language governing permissions and limitations under the
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* License.
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*/
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package org.alfresco.example;
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import java.io.File;
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import java.io.Serializable;
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import java.util.HashMap;
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import java.util.Map;
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import org.alfresco.model.ContentModel;
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import org.alfresco.repo.content.MimetypeMap;
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import org.alfresco.repo.transaction.TransactionUtil;
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import org.alfresco.repo.transaction.TransactionUtil.TransactionWork;
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import org.alfresco.service.ServiceRegistry;
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import org.alfresco.service.cmr.repository.ChildAssociationRef;
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import org.alfresco.service.cmr.repository.ContentReader;
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import org.alfresco.service.cmr.repository.ContentService;
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import org.alfresco.service.cmr.repository.ContentWriter;
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import org.alfresco.service.cmr.repository.NodeRef;
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import org.alfresco.service.cmr.repository.NodeService;
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import org.alfresco.service.cmr.repository.StoreRef;
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import org.alfresco.service.namespace.QName;
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import org.alfresco.service.transaction.TransactionService;
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import org.alfresco.util.ApplicationContextHelper;
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import org.alfresco.util.GUID;
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import org.alfresco.util.TempFileProvider;
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import org.alfresco.util.debug.NodeStoreInspector;
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import org.springframework.context.ApplicationContext;
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/**
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* A quick example of how to
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* <ul>
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* <li>get hold of the repository service</li>
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* <li>initialise a model</li>
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* <li>create nodes</li>
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* <li>load in some content</li>
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* </ul>
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* <p>
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* <i>
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* All the normal checks for missing resources and so forth have been left out in the interests
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* of clarity of demonstration.
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* </i>
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* <p>
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* To change the model being used, make changes to the <b>dictionaryDAO</b> bean in the
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* application contenxt XML file. For now, this example is written against the
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* generic <code>alfresco/model/contentModel.xml</code>.
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* <p>
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* The content store location can also be set in the application context.
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*
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*
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* @author Derek Hulley
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*/
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public class SimpleExampleWithContent
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{
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private static final String NAMESPACE = "http://www.alfresco.org/test/SimpleExampleWithContent";
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public static void main(String[] args)
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{
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// initialise app content
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ApplicationContext ctx = ApplicationContextHelper.getApplicationContext();
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// get registry of services
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final ServiceRegistry serviceRegistry = (ServiceRegistry) ctx.getBean(ServiceRegistry.SERVICE_REGISTRY);
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// begin a UserTransaction
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// All the services are set to create or propogate the transaction.
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// This transaction will be recognised and propogated
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// The TransactionUtil takes care of the catching and rollback, etc
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TransactionService transactionService = serviceRegistry.getTransactionService();
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TransactionWork<Object> exampleWork = new TransactionWork<Object>()
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{
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public Object doWork() throws Exception
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{
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doExample(serviceRegistry);
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return null;
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}
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};
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TransactionUtil.executeInUserTransaction(transactionService, exampleWork);
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System.exit(0);
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}
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private static void doExample(ServiceRegistry serviceRegistry) throws Exception
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{
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// get individual, required services
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NodeService nodeService = serviceRegistry.getNodeService();
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ContentService contentService = serviceRegistry.getContentService();
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// create a store, if one doesn't exist
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StoreRef storeRef = new StoreRef(
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StoreRef.PROTOCOL_WORKSPACE,
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"SimpleExampleWithContent-" + GUID.generate());
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if (!nodeService.exists(storeRef))
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{
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nodeService.createStore(storeRef.getProtocol(), storeRef.getIdentifier());
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}
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// get the root node from which to hang the next level of nodes
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NodeRef rootNodeRef = nodeService.getRootNode(storeRef);
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Map<QName, Serializable> nodeProperties = new HashMap<QName, Serializable>(7);
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// add a simple folder to the root node
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nodeProperties.clear();
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nodeProperties.put(ContentModel.PROP_NAME, "My First Folder");
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ChildAssociationRef assocRef = nodeService.createNode(
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rootNodeRef,
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ContentModel.ASSOC_CHILDREN,
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QName.createQName(NAMESPACE, QName.createValidLocalName("My First Folder")),
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ContentModel.TYPE_FOLDER,
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nodeProperties);
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NodeRef folderRef = assocRef.getChildRef();
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// create a file
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nodeProperties.clear();
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nodeProperties.put(ContentModel.PROP_NAME, "My First File");
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assocRef = nodeService.createNode(
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folderRef,
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ContentModel.ASSOC_CONTAINS,
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QName.createQName(NAMESPACE, QName.createValidLocalName("My First File")),
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ContentModel.TYPE_CONTENT,
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nodeProperties);
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NodeRef fileRef = assocRef.getChildRef();
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ContentWriter writer = contentService.getWriter(fileRef, ContentModel.PROP_CONTENT, true);
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// the mimetype will up pushed onto the node automatically once the stream closes
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writer.setMimetype(MimetypeMap.MIMETYPE_TEXT_PLAIN);
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// store string content as UTF-8
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writer.setEncoding("UTF-8");
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// write some content - this API allows streaming and direct loading,
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// but for now we'll just upload a string
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// The writer, being updating, will take care of updating the node once the stream
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// closes.
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String content = "The quick brown fox jumps over the lazy dog";
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writer.putContent(content);
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// dump the content to a file
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File file = TempFileProvider.createTempFile("sample", ".txt");
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ContentReader reader = contentService.getReader(fileRef, ContentModel.PROP_CONTENT);
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reader.getContent(file);
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// just to demonstrate the node structure, dump it to the file
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String dump = NodeStoreInspector.dumpNodeStore(nodeService, storeRef);
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System.out.println("Node Store: \n" + dump);
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// and much, much more ...
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}
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}
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