ExecutionNode.java

/**
 * Copyright 2016 vip.com.
 * <p>
 * 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.
 * </p>
 */

package com.vip.saturn.job.internal.execution;

import com.vip.saturn.job.internal.election.ElectionNode;
import com.vip.saturn.job.internal.storage.JobNodePath;

/**
 * Saturn执行状态节点名称的常量类.
 * 
 * @author dylan
 */
public final class ExecutionNode {
    
    /**
     * 执行状态根节点.
     */
    public static final String ROOT = "execution";
    
    public static final String RUNNING_APPENDIX = "running";
    
    public static final String RUNNING = ROOT + "/%s/" + RUNNING_APPENDIX;
    
    public static final String COMPLETED = ROOT + "/%s/completed";
    
    /** 作业执行execution节点*/
    public static final String EXECUTION_NODE = ROOT + "/%s";
    
    /** 执行失败*/
    public static final String FAILED = ROOT + "/%s/failed";
    /** 执行超时*/
    public static final String TIMEOUT = ROOT + "/%s/timeout";
    
    /** 作业执行返回信息*/
    public static final String JOB_MSG = ROOT + "/%s/jobMsg";
    
    /** 作业日志信息*/
    public static final String JOB_LOG = ROOT + "/%s/jobLog";
    
    public static final String LAST_BEGIN_TIME = ROOT + "/%s/lastBeginTime";
    
    public static final String NEXT_FIRE_TIME = ROOT + "/%s/nextFireTime";
    
    public static final String LAST_COMPLETE_TIME = ROOT + "/%s/lastCompleteTime";
    
    public static final String LEADER_ROOT = ElectionNode.ROOT + "/" + ROOT;
    
    private final String jobName;
    
    public ExecutionNode(final String jobName) {
    	this.jobName = jobName;
    }
    
    /**
     * 获取作业运行状态节点路径.
     * 
     * @param item 作业项
     * @return 作业运行状态节点路径
     */
    public static String getRunningNode(final int item) {
        return String.format(RUNNING, item);
    }
    
    public static String getCompletedNode(final int item) {
        return String.format(COMPLETED, item);
    }
    
    /** 执行出错节点*/
    public static String getFailedNode(final int item) {
        return String.format(FAILED, item);
    }
    
    /** 执行超时节点*/
    public  static String getTimeoutNode(final int item) {
        return String.format(TIMEOUT, item);
    }
    
    /** 作业执行返回信息*/
    public static String getJobMsg(final int item) {
        return String.format(JOB_MSG, item);
    }
    
    /** 作业运行日志*/
    public static String getJobLog(final int item) {
        return String.format(JOB_LOG, item);
    }
    
    public static String getLastBeginTimeNode(final int item) {
        return String.format(LAST_BEGIN_TIME, item);
    }
    
    public static String getNextFireTimeNode(final int item) {
        return String.format(NEXT_FIRE_TIME, item);
    }
    
    public static String getLastCompleteTimeNode(final int item) {
        return String.format(LAST_COMPLETE_TIME, item);
    }
    
    public static String getExecutionNode(final String item) {
        return String.format(EXECUTION_NODE, item);
    }
    
    
    /**
     * 根据运行中的分片路径获取分片项.
     * 
     * @param path 运行中的分片路径
     * @return 分片项, 不是运行中的分片路径获则返回null
     */
    public Integer getItemByRunningItemPath(final String path) {
        if (!isRunningItemPath(path)) {
            return null;
        }
        return Integer.parseInt(path.substring(JobNodePath.getNodeFullPath(jobName, ROOT).length() + 1, path.lastIndexOf(RUNNING_APPENDIX) - 1));
    }
    
    private boolean isRunningItemPath(final String path) {
        return path.startsWith(JobNodePath.getNodeFullPath(jobName, ROOT)) && path.endsWith(RUNNING_APPENDIX);
    }
    
}