/*
* Copyright (c) 2012, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* 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.wso2.carbon.humantask.core.engine.commands;
import org.wso2.carbon.humantask.core.dao.*;
import org.wso2.carbon.humantask.core.engine.runtime.api.HumanTaskIllegalAccessException;
import org.wso2.carbon.humantask.core.engine.util.OperationAuthorizationUtil;
import org.wso2.carbon.humantask.core.internal.HumanTaskServerHolder;
import java.util.ArrayList;
import java.util.List;
/**
* The release operation logic.
*/
public class Release extends AbstractHumanTaskCommand {
public Release(String callerId, Long taskId) {
super(callerId, taskId);
}
/**
* Checks the Pre-conditions before executing the task operation.
*/
@Override
protected void checkPreConditions() {
TaskDAO task = getTask();
OrganizationalEntityDAO caller = getOperationInvoker();
checkForValidTask();
//if the task is in progress status we need to stop it first before releasing it!
if (TaskStatus.IN_PROGRESS.equals(task.getStatus())) {
List<GenericHumanRoleDAO.GenericHumanRoleType> allowedRoles = new ArrayList
<GenericHumanRoleDAO.GenericHumanRoleType>();
allowedRoles.add(GenericHumanRoleDAO.GenericHumanRoleType.ACTUAL_OWNER);
if (HumanTaskServerHolder.getInstance().getHtServer().getServerConfig().isTaskOperationsForBusinessAdministratorEnabled()) {
allowedRoles.add(GenericHumanRoleDAO.GenericHumanRoleType.BUSINESS_ADMINISTRATORS);
}
if (!OperationAuthorizationUtil.authoriseUser(task, caller, allowedRoles,
getEngine().getPeopleQueryEvaluator())) {
throw new HumanTaskIllegalAccessException(String.format("The user[%s] cannot perform [%s]" +
" operation as he is not in task roles[%s]",
caller.getName(), Release.class, allowedRoles));
}
task.stop();
reloadTask();
}
}
/**
* Perform the authorization checks before executing the task operation.
*/
@Override
protected void authorise() {
List<GenericHumanRoleDAO.GenericHumanRoleType> allowedRoles =
new ArrayList<GenericHumanRoleDAO.GenericHumanRoleType>();
allowedRoles.add(GenericHumanRoleDAO.GenericHumanRoleType.ACTUAL_OWNER);
if (HumanTaskServerHolder.getInstance().getHtServer().getServerConfig().isTaskOperationsForBusinessAdministratorEnabled()) {
allowedRoles.add(GenericHumanRoleDAO.GenericHumanRoleType.BUSINESS_ADMINISTRATORS);
}
authoriseRoles(allowedRoles);
}
/**
* Perform the state checks before executing the task operation.
*/
@Override
protected void checkState() {
checkPreState(TaskStatus.RESERVED);
}
/**
* Checks the post-conditions after executing the task operation.
*/
@Override
protected void checkPostConditions() {
checkPostState(TaskStatus.READY);
}
@Override
protected EventDAO createTaskEvent() {
EventDAO taskEvent = super.createTaskEvent();
taskEvent.setDetails("");
return taskEvent;
}
@Override
public void execute() {
authorise();
TaskDAO task = getTask();
checkPreConditions();
checkState();
task.release();
processTaskEvent();
checkPostConditions();
}
}