/*
* Copyright 2012 Red Hat, Inc. and/or its affiliates.
*
* Licensed 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.jbpm.services.task.impl;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.jbpm.services.task.events.TaskEventSupport;
import org.jbpm.services.task.utils.ContentMarshallerHelper;
import org.kie.api.task.model.Content;
import org.kie.api.task.model.Task;
import org.kie.internal.task.api.ContentMarshallerContext;
import org.kie.internal.task.api.TaskContentService;
import org.kie.internal.task.api.TaskModelProvider;
import org.kie.internal.task.api.TaskPersistenceContext;
import org.kie.internal.task.api.model.ContentData;
import org.kie.internal.task.api.model.InternalContent;
import org.kie.internal.task.api.model.InternalTaskData;
/**
*
*/
public class TaskContentServiceImpl implements TaskContentService {
private TaskPersistenceContext persistenceContext;
private TaskEventSupport taskEventSupport;
private org.kie.internal.task.api.TaskContext context;
public TaskContentServiceImpl() {
}
public TaskContentServiceImpl(org.kie.internal.task.api.TaskContext context, TaskPersistenceContext persistenceContext, TaskEventSupport taskEventSupport) {
this.context = context;
this.persistenceContext = persistenceContext;
this.taskEventSupport = taskEventSupport;
}
public void setPersistenceContext(TaskPersistenceContext persistenceContext) {
this.persistenceContext = persistenceContext;
}
public void setTaskEventSupport(TaskEventSupport taskEventSupport) {
this.taskEventSupport = taskEventSupport;
}
@SuppressWarnings("unchecked")
public long addOutputContent(long taskId, Map<String, Object> params) {
Task task = persistenceContext.findTask(taskId);
long outputContentId = task.getTaskData().getOutputContentId();
Content outputContent = persistenceContext.findContent(outputContentId);
long contentId = -1;
if (outputContent == null) {
ContentMarshallerContext context = getMarshallerContext(task);
ContentData outputContentData = ContentMarshallerHelper.marshal(task, params, context.getEnvironment());
Content content = TaskModelProvider.getFactory().newContent();
((InternalContent) content).setContent(outputContentData.getContent());
persistenceContext.persistContent(content);
persistenceContext.setOutputToTask(content, outputContentData, task);
contentId = content.getId();
} else {
// I need to merge it if it already exist
ContentMarshallerContext context = getMarshallerContext(task);
Object unmarshalledObject = ContentMarshallerHelper.unmarshall(outputContent.getContent(), context.getEnvironment(), context.getClassloader());
if(unmarshalledObject != null && unmarshalledObject instanceof Map){
((Map<String, Object>)unmarshalledObject).putAll(params);
}
ContentData outputContentData = ContentMarshallerHelper.marshal(task, unmarshalledObject, context.getEnvironment());
((InternalContent)outputContent).setContent(outputContentData.getContent());
persistenceContext.persistContent(outputContent);
contentId = outputContentId;
}
((InternalTaskData)task.getTaskData()).setTaskOutputVariables(params);
taskEventSupport.fireAfterTaskOutputVariablesChanged(task, context, params);
return contentId;
}
// TODO: if there's an existing document content entity, we lose all link to that through this!
public long setDocumentContent(long taskId, Content content) {
Task task = persistenceContext.findTask(taskId);
persistenceContext.persistContent(content);
((InternalTaskData) task.getTaskData()).setDocumentContentId(content.getId());
return content.getId();
}
public void deleteDocumentContent(long taskId, long contentId) {
Task task = persistenceContext.findTask(taskId);
((InternalTaskData) task.getTaskData()).setDocumentContentId(-1);
Content content = persistenceContext.findContent(contentId);
persistenceContext.removeContent(content);
}
public List<Content> getAllContentByTaskId(long taskId) {
Task task = persistenceContext.findTask(taskId);
long inputContentId = task.getTaskData().getDocumentContentId();
long outputContentId = task.getTaskData().getOutputContentId();
long faultContentId = task.getTaskData().getFaultContentId();
List<Content> allContent = new ArrayList<Content>();
allContent.add(persistenceContext.findContent(inputContentId));
allContent.add(persistenceContext.findContent(outputContentId));
allContent.add(persistenceContext.findContent(faultContentId));
return allContent;
}
public Content getContentById(long contentId) {
return persistenceContext.findContent(contentId);
}
@Override
public void addMarshallerContext(String ownerId, ContentMarshallerContext context) {
TaskContentRegistry.get().addMarshallerContext(ownerId, context);
}
@Override
public void removeMarshallerContext(String ownerId) {
TaskContentRegistry.get().removeMarshallerContext(ownerId);
}
public ContentMarshallerContext getMarshallerContext(Task task) {
return TaskContentRegistry.get().getMarshallerContext(task);
}
@Override
public Task loadTaskVariables(Task task) {
// load input
if (task.getTaskData().getTaskInputVariables() == null) {
Map<String, Object> input = loadContentData(task.getTaskData().getDocumentContentId(), task);
((InternalTaskData)task.getTaskData()).setTaskInputVariables(input);
}
// load output
if (task.getTaskData().getTaskOutputVariables() == null) {
Map<String, Object> output = loadContentData(task.getTaskData().getOutputContentId(), task);
((InternalTaskData)task.getTaskData()).setTaskOutputVariables(output);
}
return task;
}
@SuppressWarnings("unchecked")
protected Map<String, Object> loadContentData(Long contentId, Task task) {
if (contentId != null) {
Map<String, Object> data = null;
Content contentById = getContentById(contentId);
if (contentById != null) {
ContentMarshallerContext mContext = getMarshallerContext(task);
Object unmarshalledObject = ContentMarshallerHelper.unmarshall(contentById.getContent(), mContext.getEnvironment(), mContext.getClassloader());
if (!(unmarshalledObject instanceof Map)) {
data = new HashMap<String, Object>();
data.put("Content", unmarshalledObject);
} else {
data = (Map<String, Object>) unmarshalledObject;
}
return data;
}
}
return null;
}
}