ServerNode.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.server;

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

/**
 * Saturn服务器节点名称的常量类.
 * @author dylan.xue
 */
public final class ServerNode {
    
    /**
     * 作业服务器信息根节点.
     */
    public static final String ROOT = "servers";
    
    public static final String IP = ROOT + "/%s/ip";
    
    public static final String STATUS_APPENDIX = "status";
    
    public static final String STATUS = ROOT + "/%s/" + STATUS_APPENDIX;
    
    public static final String PROCESS_SUCCESS_COUNT = ROOT + "/%s/processSuccessCount";
    
    public static final String PROCESS_FAILURE_COUNT = ROOT + "/%s/processFailureCount";

    /** server 版本 **/
    public static final String VERSION = ROOT + "/%s/version";
    /** 对应的Executor运行节点 */
    public static final String SERVER = ROOT + "/%s";
    
    public static final String RUNONETIME = ROOT + "/%s/runOneTime";
    
    public static final String STOPONETIME = ROOT + "/%s/stopOneTime";
    
    private ServerNode() {
    }
    

    static String getVersionNode(String executorName) {
        return String.format(VERSION, executorName);
    }
    
    static String getIpNode(String executorName) {
        return String.format(IP, executorName);
    }
    
    static String getStatusNode(String executorName) {
        return String.format(STATUS, executorName);
    }
    
    static String getProcessSuccessCountNode(String executorName) {
        return String.format(PROCESS_SUCCESS_COUNT, executorName);
    }
    
    static String getProcessFailureCountNode(String executorName) {
        return String.format(PROCESS_FAILURE_COUNT, executorName);
    }
    
    static String getRunOneTimePath(String executorName){
    	return String.format(ServerNode.RUNONETIME, executorName);
    }
    
    static String getStopOneTimePath(String executorName){
    	return String.format(ServerNode.STOPONETIME, executorName);
    }
    
    /** 对应的Executor运行节点 */
	static String getServerNodePath(String executorName) {
		return String.format(SERVER, executorName);
	}
    
    /**
     * 判断给定路径是否为作业服务器状态路径.
     * 
     * @param path 待判断的路径
     * @return 是否为作业服务器状态路径
     */
    public static boolean isServerStatusPath(final String jobName, final String path) {
        return path.startsWith(JobNodePath.getNodeFullPath(jobName, ServerNode.ROOT)) && path.endsWith(ServerNode.STATUS_APPENDIX);
    }
    
    /**
     * @return 运行态的server的ZK节点路径
     */
    public static String getServerNode(final String jobName, String executorName){
    	return JobNodePath.getNodeFullPath(jobName, getServerNodePath(executorName));
    }
    
    public static String getServerRoot(final String jobName){
    	return JobNodePath.getNodeFullPath(jobName, ROOT);
    }
    
	public static boolean isRunOneTimePath(final String jobName, String path, String executorName) {
        return path.startsWith(JobNodePath.getNodeFullPath(jobName, String.format(ServerNode.RUNONETIME, executorName)));
	}
	
	public static boolean isStopOneTimePath(final String jobName, String path, String executorName) {
        return path.startsWith(JobNodePath.getNodeFullPath(jobName, String.format(ServerNode.STOPONETIME, executorName)));
	}
}