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
This commit is contained in:
N Smith
2010-07-27 10:01:55 +00:00
parent 876ebf377f
commit 1ab5c1fc62
46 changed files with 245 additions and 188 deletions

View File

@@ -0,0 +1,275 @@
/*
* Copyright (C) 2005-2010 Alfresco Software Limited.
*
* This file is part of Alfresco
*
* Alfresco is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Alfresco is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
*/
package org.alfresco.repo.workflow;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.alfresco.model.ContentModel;
import org.alfresco.repo.security.authentication.AuthenticationUtil;
import org.alfresco.repo.security.authentication.AuthenticationUtil.RunAsWork;
import org.alfresco.service.cmr.repository.ChildAssociationRef;
import org.alfresco.service.cmr.repository.NodeRef;
import org.alfresco.service.cmr.repository.NodeService;
import org.alfresco.service.cmr.workflow.WorkflowException;
import org.alfresco.service.cmr.workflow.WorkflowService;
import org.alfresco.service.namespace.NamespaceService;
import org.alfresco.service.namespace.QName;
import org.alfresco.service.namespace.RegexQNamePattern;
import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* This helper class is used to manage a workflow package. The manager is a
* stateful object which accumulates all the changes to be made to the package
* (such as adding and removing package items). These changes are then applied
* to the package when either the create() or update() method is called.
*
* @since 3.4
* @author Nick Smith
*
*/
public class PackageManager
{
private static final QName PCKG_CONTAINS = WorkflowModel.ASSOC_PACKAGE_CONTAINS;
private static final QName PCKG_ASPECT= WorkflowModel.ASPECT_WORKFLOW_PACKAGE;
private static final String CM_URL = NamespaceService.CONTENT_MODEL_1_0_URI;
/** Default Log */
private final static Log LOGGER = LogFactory.getLog(PackageManager.class);
private final WorkflowService workflowService;
private final NodeService nodeService;
private final Log logger;
private final Set<NodeRef> addItems = new HashSet<NodeRef>();
private final Set<NodeRef> removeItems = new HashSet<NodeRef>();
public PackageManager(WorkflowService workflowService,
NodeService nodeService,
Log logger)
{
this.workflowService = workflowService;
this.nodeService = nodeService;
this.logger = logger ==null ? LOGGER : logger;
}
public void addItems(List<NodeRef> items)
{
addItems.addAll(items);
}
/**
* Takes a comma-separated list of {@link NodeRef} ids and adds the
* specified NodeRefs to the package.
*
* @param items
*/
public void addItems(String items)
{
List<NodeRef> nodes = NodeRef.getNodeRefs(items);
addItems(nodes);
}
public void addItemsAsStrings(List<String> itemStrs)
{
for (String itemStr : itemStrs)
{
addItem(itemStr);
}
}
public void addItem(NodeRef item)
{
addItems.add(item);
}
public void addItem(String itemStr)
{
addItem(new NodeRef(itemStr));
}
public void removeItems(List<NodeRef> items)
{
removeItems.addAll(items);
}
/**
* Takes a comma-separated list of {@link NodeRef} ids and adds the
* specified NodeRefs to the package.
*
* @param items
*/
public void removeItems(String items)
{
List<NodeRef> nodes = NodeRef.getNodeRefs(items);
removeItems(nodes);
}
public void removeItemsAsStrings(List<String> itemStrs)
{
for (String itemStr : itemStrs)
{
removeItem(itemStr);
}
}
public void removeItem(NodeRef item)
{
removeItems.add(item);
}
public void removeItem(String itemStr)
{
removeItem(new NodeRef(itemStr));
}
/**
* Creates a new Workflow package using the specified <code>container</code>.
* If the <code>container</code> is null then a new container node is created.
* Applies the specified updates to the package after it is created.
* @param container
* @return the package {@link NodeRef}.
* @throws WorkflowException if the specified container is already package.
*/
public NodeRef create(NodeRef container) throws WorkflowException
{
NodeRef packageRef = workflowService.createPackage(container);
update(packageRef);
return packageRef;
}
/**
* Applies the specified modifications to the package.
* @param packageRef
*/
public void update(final NodeRef packageRef)
{
if(addItems.isEmpty() && removeItems.isEmpty())
return;
AuthenticationUtil.runAs(new RunAsWork<Void>()
{
public Void doWork() throws Exception
{
checkPackage(packageRef);
checkPackageItems(packageRef);
addPackageItems(packageRef);
removePackageItems(packageRef);
return null;
}
}, AuthenticationUtil.getSystemUserName());
addItems.clear();
removeItems.clear();
}
private void checkPackage(NodeRef packageRef)
{
if(packageRef == null
|| nodeService.hasAspect(packageRef, PCKG_ASPECT)==false )
{
String msg = "The package NodeRef must implement the aspect: " + PCKG_ASPECT;
throw new WorkflowException(msg);
}
}
private void removePackageItems(NodeRef packageRef)
{
for (NodeRef item : removeItems)
{
nodeService.removeChild(packageRef, item);
}
}
private void addPackageItems(final NodeRef packageRef)
{
for (NodeRef item : addItems)
{
String name =
(String) nodeService.getProperty(item, ContentModel.PROP_NAME);
String localName = QName.createValidLocalName(name);
QName qName = QName.createQName(CM_URL, localName);
nodeService.addChild(packageRef, item, PCKG_CONTAINS, qName);
}
}
private List<NodeRef> getCurrentItems(NodeRef packageRef)
{
List<ChildAssociationRef> children = nodeService.getChildAssocs(
packageRef, PCKG_CONTAINS, RegexQNamePattern.MATCH_ALL);
ArrayList<NodeRef> results = new ArrayList<NodeRef>(children.size());
for (ChildAssociationRef child : children)
{
results.add(child.getChildRef());
}
return results;
}
@SuppressWarnings("unchecked")
private void checkPackageItems(NodeRef packageRef)
{
List<NodeRef> currentitems = getCurrentItems(packageRef);
Collection<NodeRef> intersection = CollectionUtils.intersection(addItems, removeItems);
addItems.removeAll(intersection);
removeItems.removeAll(intersection);
for (NodeRef node : intersection)
{
if(logger.isDebugEnabled())
logger.debug("Item was added and removed from package! Ignoring item: "+ node);
}
checkAddedItems(currentitems);
checkRemovedItems(currentitems);
}
private void checkRemovedItems(List<NodeRef> currentitems)
{
for (NodeRef removeItem : removeItems)
{
if(currentitems.contains(removeItem)==false)
{
removeItems.remove(removeItem);
if (logger.isDebugEnabled())
logger.debug("Ignoring item to remove, item not in package: " + removeItem);
}
}
}
private void checkAddedItems(List<NodeRef> currentitems)
{
for (NodeRef addItem : addItems)
{
if (currentitems.contains(addItem))
{
addItems.remove(addItem);
if (logger.isDebugEnabled())
logger.debug("Ignoring item to add, item already in package: " + addItem);
}
}
}
}

View File

@@ -0,0 +1,155 @@
/*
* Copyright (C) 2005-2009 Alfresco Software Limited.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* As a special exception to the terms and conditions of version 2.0 of
* the GPL, you may redistribute this Program in connection with Free/Libre
* and Open Source Software ("FLOSS") applications as described in Alfresco's
* FLOSS exception. You should have recieved a copy of the text describing
* the FLOSS exception, and it is also available here:
* http://www.alfresco.com/legal/licensing"
*/
package org.alfresco.repo.workflow;
import java.io.Serializable;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.alfresco.service.cmr.repository.NodeRef;
import org.alfresco.service.cmr.repository.NodeService;
import org.alfresco.service.cmr.workflow.WorkflowService;
import org.alfresco.service.cmr.workflow.WorkflowTask;
import org.alfresco.service.namespace.QName;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* A helper class for updating and transitioning {@link WorkflowTask
* WorkflowTasks}. This is a stateful object that accumulates a set of updates
* to a task and then commits all the updates when either the update() or
* transition() method is called.
*
* @since 3.4
* @author Nick Smith
*/
public class TaskUpdater
{
/** Logger */
private static final Log LOGGER = LogFactory.getLog(TaskUpdater.class);
private final String taskId;
private final WorkflowService workflowService;
private final PackageManager packageMgr;
private final Map<QName, Serializable> properties = new HashMap<QName, Serializable>();
private final Map<QName, List<NodeRef>> add = new HashMap<QName, List<NodeRef>>();
private final Map<QName, List<NodeRef>> remove = new HashMap<QName, List<NodeRef>>();
public TaskUpdater(String taskId,
WorkflowService workflowService,
NodeService nodeService)
{
this.taskId = taskId;
this.workflowService = workflowService;
this.packageMgr = new PackageManager(workflowService, nodeService, LOGGER);
}
public void addProperty(QName name, Serializable value)
{
properties.put(name, value);
}
public void addAssociation(QName name, List<NodeRef> value)
{
add.put(name, value);
}
public void removeAssociation(QName name, List<NodeRef> value)
{
remove.put(name, value);
}
public boolean changeAssociation(QName name, String nodeRefs, boolean isAdd)
{
List<NodeRef> value = NodeRef.getNodeRefs(nodeRefs, LOGGER);
if (value == null)
{
return false;
}
Map<QName, List<NodeRef>> map = getAssociationMap(isAdd);
if (map != null)
{
map.put(name, value);
return true;
}
return false;
}
/**
* @param suffix
* @return
*/
private Map<QName, List<NodeRef>> getAssociationMap(boolean isAdd)
{
Map<QName, List<NodeRef>> map = null;
if (isAdd)
{
map = add;
}
else
{
map = remove;
}
return map;
}
public void addPackageItems(List<NodeRef> items)
{
packageMgr.addItems(items);
}
public void removePackageItems(List<NodeRef> items)
{
packageMgr.removeItems(items);
}
public WorkflowTask transition()
{
return transition(null);
}
public WorkflowTask transition(String transitionId)
{
return workflowService.endTask(taskId, transitionId);
}
public WorkflowTask update()
{
WorkflowTask task = workflowService.getTaskById(taskId);
NodeRef packageNode = task.path.instance.workflowPackage;
packageMgr.update(packageNode);
WorkflowTask result = workflowService.updateTask(taskId, properties, add, remove);
properties.clear();
add.clear();
remove.clear();
return result;
}
}

View File

@@ -0,0 +1,108 @@
/*
* Copyright (C) 2005-2010 Alfresco Software Limited.
*
* This file is part of Alfresco
*
* Alfresco is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Alfresco is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
*/
package org.alfresco.repo.workflow;
import java.io.Serializable;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.alfresco.service.cmr.repository.NodeRef;
import org.alfresco.service.cmr.repository.NodeService;
import org.alfresco.service.cmr.workflow.WorkflowDefinition;
import org.alfresco.service.cmr.workflow.WorkflowException;
import org.alfresco.service.cmr.workflow.WorkflowInstance;
import org.alfresco.service.cmr.workflow.WorkflowPath;
import org.alfresco.service.cmr.workflow.WorkflowService;
import org.alfresco.service.cmr.workflow.WorkflowTask;
import org.alfresco.service.namespace.QName;
/**
* A helper class used to start workflows. The builder is a stateful object that
* accumulates the various parameters and package items used to start the
* workflow. The workflow is started when the build() method is called.
*
* @since 3.4
* @author Nick Smith
*/
public class WorkflowBuilder
{
private final WorkflowService workflowService;
private final PackageManager packageMgr;
private final WorkflowDefinition definition;
private final Map<QName, Serializable> params = new HashMap<QName, Serializable>();
private NodeRef packageNode = null;
public WorkflowBuilder(WorkflowDefinition definition, WorkflowService workflowService, NodeService nodeService)
{
this.workflowService = workflowService;
this.packageMgr = new PackageManager(workflowService, nodeService, null);
this.definition = definition;
}
public void addParameter(QName name, Serializable value)
{
params.put(name, value);
}
public void addAssociationParameter(QName name, List<NodeRef> values)
{
if(values instanceof Serializable)
{
params.put(name, (Serializable) values);
}
}
/**
* @param packageNode the packageNode to set
*/
public void setPackageNode(NodeRef packageNode)
{
this.packageNode = packageNode;
}
public void addPackageItems(List<NodeRef> items)
{
packageMgr.addItems(items);
}
public WorkflowInstance build()
{
NodeRef packageRef = packageMgr.create(packageNode);
params.put(WorkflowModel.ASSOC_PACKAGE, packageRef);
WorkflowPath path = workflowService.startWorkflow(definition.id, params);
signalStartTask(path);
return path.instance;
}
private void signalStartTask(WorkflowPath path)
{
List<WorkflowTask> tasks = workflowService.getTasksForWorkflowPath(path.id);
if(tasks.size() == 1)
{
WorkflowTask startTask = tasks.get(0);
workflowService.endTask(startTask.id, null);
}
else
throw new WorkflowException("Start task not found! Expected 1 task but found: " + tasks.size());
}
}