esg.common.shell.cmds.ESGFls.java Source code

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Here is the source code for esg.common.shell.cmds.ESGFls.java

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/***************************************************************************
*                                                                          *
*  Organization: Lawrence Livermore National Lab (LLNL)                    *
*   Directorate: Computation                                               *
*    Department: Computing Applications and Research                       *
*      Division: S&T Global Security                                       *
*        Matrix: Atmospheric, Earth and Energy Division                    *
*       Program: PCMDI                                                     *
*       Project: Earth Systems Grid Federation (ESGF) Data Node Software   *
*  First Author: Gavin M. Bell (gavin@llnl.gov)                            *
*                                                                          *
****************************************************************************
*                                                                          *
*   Copyright (c) 2009, Lawrence Livermore National Security, LLC.         *
*   Produced at the Lawrence Livermore National Laboratory                 *
*   Written by: Gavin M. Bell (gavin@llnl.gov)                             *
*   LLNL-CODE-420962                                                       *
*                                                                          *
*   All rights reserved. This file is part of the:                         *
*   Earth System Grid Federation (ESGF) Data Node Software Stack           *
*                                                                          *
*   For details, see http://esgf.org/esg-node/                             *
*   Please also read this link                                             *
*    http://esgf.org/LICENSE                                               *
*                                                                          *
*   * Redistribution and use in source and binary forms, with or           *
*   without modification, are permitted provided that the following        *
*   conditions are met:                                                    *
*                                                                          *
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*   notice, this list of conditions and the disclaimer below.              *
*                                                                          *
*   * Redistributions in binary form must reproduce the above copyright    *
*   notice, this list of conditions and the disclaimer (as noted below)    *
*   in the documentation and/or other materials provided with the          *
*   distribution.                                                          *
*                                                                          *
*   Neither the name of the LLNS/LLNL nor the names of its contributors    *
*   may be used to endorse or promote products derived from this           *
*   software without specific prior written permission.                    *
*                                                                          *
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*   LIVERMORE NATIONAL SECURITY, LLC, THE U.S. DEPARTMENT OF ENERGY OR     *
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***************************************************************************/
package esg.common.shell.cmds;

/**
   Description:
   ESGF's "ls" command..."
**/

import esg.common.shell.*;

import org.apache.commons.cli.*;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.logging.impl.*;

public final class ESGFls extends ESGFCommand {

    private static Log log = LogFactory.getLog(ESGFls.class);

    public ESGFls() {
        super();
    }

    public String getCommandName() {
        return "ls";
    }

    public void doInitOptions() {
        getOptions().addOption("d", "datasets", false, "lists All Datasets in CWD");
        Option listfiles = OptionBuilder.withArgName("datasetdir").hasArg()
                .withDescription("lists the files of a particular dataset").create("files");
        getOptions().addOption(listfiles);
        Option missingfiles = OptionBuilder.withArgName("datasetdir").hasArg()
                .withDescription("lists the missing files of a particular dataset").create("missing");
        getOptions().addOption(missingfiles);
        Option localfiles = OptionBuilder.withArgName("datasetdir").hasArg()
                .withDescription("lists the files of a particular dataset").create("local");
        getOptions().addOption(localfiles);
    }

    public ESGFEnv doEval(CommandLine line, ESGFEnv env) {
        log.trace("inside the \"ls\" command's doEval");
        //TODO: Query for options and perform execution logic

        if (line.hasOption("datasets")) {
            env.getWriter().println("Scanning for datasets... :-)");
        }

        String datasetdir = null;
        if (line.hasOption("files")) {
            datasetdir = line.getOptionValue("files");
            env.getWriter().println("files option value is: " + datasetdir);
        }

        if (line.hasOption("missing")) {
            datasetdir = line.getOptionValue("missing");
            env.getWriter().println("missing option value is: " + datasetdir);
        }

        if (line.hasOption("local")) {
            datasetdir = line.getOptionValue("local");
            env.getWriter().println("local option value is: " + datasetdir);
        }

        int i = 0;
        for (String arg : line.getArgs()) {
            log.trace("arg(" + (i++) + "): " + arg);
        }

        return env;
    }
}