com.glaf.activiti.delegate.CancelAllTask.java Source code

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Here is the source code for com.glaf.activiti.delegate.CancelAllTask.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 com.glaf.activiti.delegate;

import java.util.List;

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.activiti.engine.delegate.Expression;
import org.activiti.engine.impl.Page;
import org.activiti.engine.impl.TaskQueryImpl;
import org.activiti.engine.impl.context.Context;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.pvm.PvmTransition;
import org.activiti.engine.impl.pvm.delegate.ActivityBehavior;
import org.activiti.engine.impl.pvm.delegate.ActivityExecution;
import org.activiti.engine.task.Task;

import com.glaf.core.util.Constants;
import com.glaf.core.util.StringTools;

public class CancelAllTask implements ActivityBehavior {

    private static final long serialVersionUID = 1L;

    protected final static Log logger = LogFactory.getLog(CancelAllTask.class);

    /**
     * ??
     */
    protected Expression conditionExpression;

    /**
     * ??
     */
    protected Expression outcomeVar;

    /**
     * ?????
     */
    protected Expression includes;

    @Override
    public void execute(ActivityExecution execution) throws Exception {
        logger.debug("----------------------------------------------------");
        logger.debug("------------------CancelAllTask---------------------");
        logger.debug("----------------------------------------------------");

        boolean executable = true;

        if (conditionExpression != null) {
            Object value = conditionExpression.getValue(execution);
            if (value != null) {
                logger.debug("condition:" + value);
                if (value instanceof Boolean) {
                    Boolean b = (Boolean) value;
                    executable = b.booleanValue();
                }
            }
        }

        if (!executable) {
            logger.debug("???false??");
            return;
        }

        String processInstanceId = execution.getProcessInstanceId();
        CommandContext commandContext = Context.getCommandContext();
        TaskQueryImpl taskQuery = new TaskQueryImpl();
        taskQuery.processInstanceId(processInstanceId);
        Page page = new Page(0, 10000);
        taskQuery.setFirstResult(page.getFirstResult());
        taskQuery.setMaxResults(page.getMaxResults());
        List<Task> tasks = commandContext.getTaskEntityManager().findTasksByQueryCriteria(taskQuery);
        if (tasks != null && !tasks.isEmpty()) {
            if (includes != null && includes.getValue(execution) != null) {
                String x_includes = (String) includes.getValue(execution);
                logger.debug("includes:" + x_includes);
                if (StringUtils.isNotEmpty(x_includes)) {
                    if (StringUtils.equals(x_includes, "ALL")) {

                    } else {
                        List<String> list = StringTools.split(x_includes);
                        for (String taskDefKey : list) {
                            for (Task task : tasks) {
                                if (StringUtils.equals(task.getTaskDefinitionKey(), taskDefKey)) {

                                }
                            }
                        }
                    }
                }
            }
        }

        String name = null;
        if (outcomeVar != null) {
            name = (String) outcomeVar.getValue(execution);
        }

        if (name == null) {
            name = Constants.OUTCOME;
        }
        String outcome = (String) execution.getVariable(name);
        if (outcome != null) {
            PvmTransition transition = execution.getActivity().findOutgoingTransition(outcome);
            if (transition != null) {
                execution.take(transition);
            }
        } else {
            PvmTransition defaultOutgoingTransition = execution.getActivity().getOutgoingTransitions().get(0);
            execution.take(defaultOutgoingTransition);
        }

    }

}