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ALF-3974 Cleaned up various classes after the Form Processor refactor. Added @since tags to all new classes. Moved TaskUpdater, WorkflowBuilder and PackageManager into org.alfresco.repo.workflow.
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@21431 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
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N Smith
275
source/java/org/alfresco/repo/workflow/PackageManager.java
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275
source/java/org/alfresco/repo/workflow/PackageManager.java
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/*
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* Copyright (C) 2005-2010 Alfresco Software Limited.
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*
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* This file is part of Alfresco
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*
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* Alfresco is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Alfresco is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.alfresco.repo.workflow;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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import org.alfresco.model.ContentModel;
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import org.alfresco.repo.security.authentication.AuthenticationUtil;
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import org.alfresco.repo.security.authentication.AuthenticationUtil.RunAsWork;
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import org.alfresco.service.cmr.repository.ChildAssociationRef;
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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.workflow.WorkflowException;
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import org.alfresco.service.cmr.workflow.WorkflowService;
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import org.alfresco.service.namespace.NamespaceService;
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import org.alfresco.service.namespace.QName;
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import org.alfresco.service.namespace.RegexQNamePattern;
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import org.apache.commons.collections.CollectionUtils;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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/**
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* This helper class is used to manage a workflow package. The manager is a
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* stateful object which accumulates all the changes to be made to the package
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* (such as adding and removing package items). These changes are then applied
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* to the package when either the create() or update() method is called.
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*
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* @since 3.4
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* @author Nick Smith
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*
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*/
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public class PackageManager
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{
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private static final QName PCKG_CONTAINS = WorkflowModel.ASSOC_PACKAGE_CONTAINS;
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private static final QName PCKG_ASPECT= WorkflowModel.ASPECT_WORKFLOW_PACKAGE;
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private static final String CM_URL = NamespaceService.CONTENT_MODEL_1_0_URI;
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/** Default Log */
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private final static Log LOGGER = LogFactory.getLog(PackageManager.class);
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private final WorkflowService workflowService;
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private final NodeService nodeService;
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private final Log logger;
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private final Set<NodeRef> addItems = new HashSet<NodeRef>();
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private final Set<NodeRef> removeItems = new HashSet<NodeRef>();
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public PackageManager(WorkflowService workflowService,
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NodeService nodeService,
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Log logger)
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{
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this.workflowService = workflowService;
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this.nodeService = nodeService;
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this.logger = logger ==null ? LOGGER : logger;
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}
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public void addItems(List<NodeRef> items)
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{
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addItems.addAll(items);
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}
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/**
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* Takes a comma-separated list of {@link NodeRef} ids and adds the
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* specified NodeRefs to the package.
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*
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* @param items
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*/
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public void addItems(String items)
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{
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List<NodeRef> nodes = NodeRef.getNodeRefs(items);
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addItems(nodes);
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}
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public void addItemsAsStrings(List<String> itemStrs)
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{
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for (String itemStr : itemStrs)
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{
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addItem(itemStr);
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}
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}
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public void addItem(NodeRef item)
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{
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addItems.add(item);
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}
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public void addItem(String itemStr)
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{
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addItem(new NodeRef(itemStr));
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}
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public void removeItems(List<NodeRef> items)
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{
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removeItems.addAll(items);
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}
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/**
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* Takes a comma-separated list of {@link NodeRef} ids and adds the
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* specified NodeRefs to the package.
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*
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* @param items
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*/
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public void removeItems(String items)
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{
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List<NodeRef> nodes = NodeRef.getNodeRefs(items);
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removeItems(nodes);
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}
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public void removeItemsAsStrings(List<String> itemStrs)
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{
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for (String itemStr : itemStrs)
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{
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removeItem(itemStr);
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}
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}
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public void removeItem(NodeRef item)
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{
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removeItems.add(item);
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}
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public void removeItem(String itemStr)
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{
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removeItem(new NodeRef(itemStr));
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}
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/**
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* Creates a new Workflow package using the specified <code>container</code>.
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* If the <code>container</code> is null then a new container node is created.
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* Applies the specified updates to the package after it is created.
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* @param container
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* @return the package {@link NodeRef}.
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* @throws WorkflowException if the specified container is already package.
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*/
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public NodeRef create(NodeRef container) throws WorkflowException
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{
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NodeRef packageRef = workflowService.createPackage(container);
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update(packageRef);
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return packageRef;
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}
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/**
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* Applies the specified modifications to the package.
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* @param packageRef
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*/
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public void update(final NodeRef packageRef)
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{
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if(addItems.isEmpty() && removeItems.isEmpty())
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return;
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AuthenticationUtil.runAs(new RunAsWork<Void>()
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{
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public Void doWork() throws Exception
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{
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checkPackage(packageRef);
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checkPackageItems(packageRef);
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addPackageItems(packageRef);
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removePackageItems(packageRef);
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return null;
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}
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}, AuthenticationUtil.getSystemUserName());
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addItems.clear();
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removeItems.clear();
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}
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private void checkPackage(NodeRef packageRef)
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{
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if(packageRef == null
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|| nodeService.hasAspect(packageRef, PCKG_ASPECT)==false )
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{
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String msg = "The package NodeRef must implement the aspect: " + PCKG_ASPECT;
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throw new WorkflowException(msg);
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}
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}
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private void removePackageItems(NodeRef packageRef)
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{
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for (NodeRef item : removeItems)
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{
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nodeService.removeChild(packageRef, item);
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}
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}
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private void addPackageItems(final NodeRef packageRef)
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{
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for (NodeRef item : addItems)
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{
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String name =
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(String) nodeService.getProperty(item, ContentModel.PROP_NAME);
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String localName = QName.createValidLocalName(name);
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QName qName = QName.createQName(CM_URL, localName);
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nodeService.addChild(packageRef, item, PCKG_CONTAINS, qName);
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}
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}
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private List<NodeRef> getCurrentItems(NodeRef packageRef)
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{
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List<ChildAssociationRef> children = nodeService.getChildAssocs(
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packageRef, PCKG_CONTAINS, RegexQNamePattern.MATCH_ALL);
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ArrayList<NodeRef> results = new ArrayList<NodeRef>(children.size());
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for (ChildAssociationRef child : children)
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{
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results.add(child.getChildRef());
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}
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return results;
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}
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@SuppressWarnings("unchecked")
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private void checkPackageItems(NodeRef packageRef)
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{
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List<NodeRef> currentitems = getCurrentItems(packageRef);
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Collection<NodeRef> intersection = CollectionUtils.intersection(addItems, removeItems);
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addItems.removeAll(intersection);
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removeItems.removeAll(intersection);
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for (NodeRef node : intersection)
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{
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if(logger.isDebugEnabled())
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logger.debug("Item was added and removed from package! Ignoring item: "+ node);
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}
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checkAddedItems(currentitems);
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checkRemovedItems(currentitems);
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}
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private void checkRemovedItems(List<NodeRef> currentitems)
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{
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for (NodeRef removeItem : removeItems)
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{
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if(currentitems.contains(removeItem)==false)
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{
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removeItems.remove(removeItem);
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if (logger.isDebugEnabled())
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logger.debug("Ignoring item to remove, item not in package: " + removeItem);
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}
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}
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}
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private void checkAddedItems(List<NodeRef> currentitems)
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{
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for (NodeRef addItem : addItems)
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{
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if (currentitems.contains(addItem))
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{
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addItems.remove(addItem);
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if (logger.isDebugEnabled())
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logger.debug("Ignoring item to add, item already in package: " + addItem);
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}
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}
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}
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}
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