com.GTDF.server.Transxchange2GoogleTransitServiceImpl.java Source code

Introduction

Here is the source code for com.GTDF.server.Transxchange2GoogleTransitServiceImpl.java

Source

/*
 * Copyright 2007 GoogleTransitDataFeed
 * 
 * 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 com.GTDF.server;

import com.google.gwt.user.server.rpc.RemoteServiceServlet;
import com.GTDF.client.Transxchange2GoogleTransitService;

import java.util.StringTokenizer;

import org.apache.commons.io.FilenameUtils;

import transxchange2GoogleTransitHandler.TransxchangeHandler;

public class Transxchange2GoogleTransitServiceImpl extends RemoteServiceServlet
        implements Transxchange2GoogleTransitService {

    static final long serialVersionUID = 0;

    public String transxchange2GoogleTransit_transform(String inArgs) {

        String rootDirectory = getServletConfig().getInitParameter("TRANSFORM_HOME");
        String workDirectory = getServletConfig().getInitParameter("TRANSFORM_DIR");
        int maxargs = 5;
        String[] args = new String[maxargs];
        int argv = 0;
        String result = "";
        TransxchangeHandler handler = null;

        /*
        * Parse input string to extract arguments (similar command line arguments)
        */
        StringTokenizer st = new StringTokenizer(inArgs, " ");
        while (st.hasMoreTokens() && argv < maxargs) {
            args[argv] = st.nextToken();
            argv++;
        }
        if (argv < maxargs) // Don't let in if too few arguments
            return "Not enough arguments. Required: <url> <timezone> <default route type> <output-directory>";

        String outdir = "";
        if (argv == 5)
            outdir = args[4];

        /*
           * Parse transxchange input file
           */
        String fileName = FilenameUtils.getName(args[0]);

        try {
            handler = new TransxchangeHandler();
            handler.parse(rootDirectory + workDirectory + '/' + outdir + '/' + fileName, args[1], args[2], args[3],
                    rootDirectory, workDirectory + '/' + outdir);
        } catch (Exception e) {
            return e.getMessage();
        }

        /*
         * Create Google Transit output files
         */
        try {
            result = handler.writeOutput(rootDirectory, workDirectory + '/' + outdir);
        } catch (Exception e) {
            return e.getMessage();
        }

        /*
         * Success - create return message
         */
        String hostedOn = getServletConfig().getInitParameter("HOSTED_ON");
        return "Created Google Transit Data Feed Spec archive at: " + hostedOn + result;
    }
}