ShardingNode.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.sharding;

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

/**
 * Saturn分片节点名称的常量类.
 * 
 * 
 */
public final class ShardingNode {
    
	public static final String LEADER_SHARDING_ROOT = ElectionNode.ROOT + "/sharding";
    
    public static final String NECESSARY = LEADER_SHARDING_ROOT + "/necessary";
    
    public static final String PROCESSING = LEADER_SHARDING_ROOT + "/processing";
    
    private static final String SERVER_SHARDING = ServerNode.ROOT + "/%s/sharding";
    
    private final String jobName;
    
    public ShardingNode(String jobName) {
    	 this.jobName = jobName;
    }
    
    public static String getShardingNode(final String executorName) {
        return String.format(SERVER_SHARDING, executorName);
    }
    

    /**
     * 判断是否为需要重新做sharding的Path
     * 
     * @param path 节点路径
     * @return 判断是否为需要重新做sharding的Path
     */
    public boolean isShardingNecessaryPath(final String path) {
        return JobNodePath.getNodeFullPath(jobName, NECESSARY).equals(path);
    }
}