BSPJobClientHelp.java

/**
 * CopyRight by Chinamobile
 * 
 * BSPJobClient.java
 */
package com.chinamobile.bcbsp.client;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;

public class BSPJobClientHelp implements Tool{

    @Override
    public void setConf(Configuration conf) {
    }

    @Override
    public Configuration getConf() {
        return null;
    }

    @Override
    public int run(String[] args) throws Exception {
        if (args.length < 1) {
            return -1;
        }
        String cmd = args[0];
        if("jar".equals(cmd)){
            System.out.print("\n");
            System.out.println(" COMMAND FORMAT:");
            System.out.println("     ========================================");
            System.out.println("       bcbsp jar <filename>.jar [arguments]");
            System.out.println("     ========================================");
            System.out.println(" Explanation:Submit a jar file to run a job on BCBSP");
            System.out.print("\n");
        } else if("job".equals(cmd) && args.length == 1){
            System.out.print("\n");
            System.out.println(" COMMAND FORMAT: ");
            System.out.println("     ========================================");
            System.out.println("        -list ");
            System.out.println("        -kill ");
            System.out.println("        -list-staffs ");
            System.out.println("        -setcheckpoint ");
            System.out.println("     ========================================");  
            System.out.print("\n");
        } else if("job".equals(cmd) && args.length == 2){
            if(args[1].equals("-list")){
                System.out.print("\n");
                System.out.println(" COMMAND FORMAT: ");
                System.out.println("     ========================================");
                System.out.println("       bcbsp job -list [all]");
                System.out.println("     ========================================");
                System.out.println(" Explanation:list current jobs or all history jobs");
                System.out.print("\n");
            }
            if(args[1].equals("-kill")){
                System.out.print("\n");
                System.out.println(" COMMAND FORMAT: ");
                System.out.println("     ========================================");
                System.out.println("       bcbsp job -kill <job-id>");
                System.out.println("     ========================================");
                System.out.println(" Explanation:kill the job with JobID <job-id>");
                System.out.print("\n");
            }
            if(args[1].equals("-list-staffs")){
                System.out.print("\n");
                System.out.println(" COMMAND FORMAT: ");
                System.out.println("     ========================================");
                System.out.println("       bcbsp job -list-staffs <job-id>");
                System.out.println("     ========================================");
                System.out.println(" Explanation:list all the TaskIDs of the job with JobID <job-id>");
                System.out.print("\n");
            }
            if(args[1].equals("-setcheckpoint")){
                System.out.print("\n");
                System.out.println(" COMMAND FORMAT: ");
                System.out.println("     ========================================");
                System.out.println("       bcbsp job -setcheckpoint <interval> <job-id>");
                System.out.println("     ========================================");
                System.out.println(" Explanation:set checkpoint interval for the job with JobID <job-id>");
                System.out.print("\n");
            }
        } else if("admin".equals(cmd) && args.length ==1){
            System.out.print("\n");
            System.out.println(" COMMAND FORMAT: ");
            System.out.println("     ========================================");
            System.out.println("        -controller ");
            System.out.println("        -workers ");
            System.out.println("     ========================================");
            System.out.print("\n");
        } else if("admin".equals(cmd) && args.length ==2){
            if(args[1].equals("-master")){
                System.out.print("\n");
                System.out.println(" COMMAND FORMAT: ");
                System.out.println("     ========================================");
                System.out.println("       bcbsp admin -controller");
                System.out.println("     ========================================");
                System.out.println(" Explanation:report controller's hostname,ip,state");
                System.out.print("\n");
            }
            if(args[1].equals("-workers")){
                System.out.print("\n");
                System.out.println(" COMMAND FORMAT: ");
                System.out.println("     ========================================");
                System.out.println("       bcbsp admin -workers");
                System.out.println("     ========================================");
                System.out.println(" Explanation:report Worker's state");
                System.out.print("\n");
            }
        }
        else {
            System.out.println("COMMAND LIST");
            System.out.println("     ========================================");
            System.out.println("     bcbsp help job");
            System.out.println("     bcbsp help jar  ");
            System.out.println("     bcbsp help admin ");
            System.out.println("     ========================================");
        }
        
        return 0;
    } 
    public static void main(String[] args) throws Exception {
        int res = ToolRunner.run(new BSPJobClientHelp(), args);
        System.exit(res);
    }

}