edu.scripps.fl.pubchem.util.CommandLineHandler.java Source code

Introduction

Here is the source code for edu.scripps.fl.pubchem.util.CommandLineHandler.java

Source

/*
 * Copyright 2010 The Scripps Research Institute
 *
 * 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.
 */
package edu.scripps.fl.pubchem.util;

import java.io.File;
import java.net.URL;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.OptionBuilder;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.PosixParser;
import org.apache.log4j.xml.DOMConfigurator;

import edu.scripps.fl.pubchem.PubChemDB;

public class CommandLineHandler {

    private CommandLine line;
    private Options options;
    private String cmdName;

    public CommandLineHandler() {
        this("<command>");
    }

    public CommandLineHandler(String cmdName) {
        this.cmdName = cmdName;
        options = new Options();
        options.addOption(OptionBuilder.withLongOpt("hib_config").withType("").withValueSeparator('=').hasArg()
                .isRequired().create());
        options.addOption(
                OptionBuilder.withLongOpt("log_config").withType("").withValueSeparator('=').hasArg().create());
    }

    public void configureOptions(Options options) {

    }

    public CommandLine getCommandLine() {
        return line;
    }

    public String[] handle(String[] args) throws Exception {
        configureOptions(options);
        try {
            line = new PosixParser().parse(options, args);
        } catch (Exception ex) {
            HelpFormatter formatter = new HelpFormatter();
            formatter.printHelp(cmdName, options, true);
            System.exit(0);
        }

        String log_config = line.getOptionValue("log_config");
        if (log_config == null) {
            URL url = getClass().getClassLoader().getResource("log4j.config.xml");
            DOMConfigurator.configure(url);
        } else
            DOMConfigurator.configure(log_config);

        String hib_config = line.getOptionValue("hib_config");
        URL hib_url = new File(hib_config).toURI().toURL();
        PubChemDB.setUp(hib_url);
        return line.getArgs();
    }
}