Java exec executeDotCommand(final File dotFile)

Description

Execute Graphviz dot's command to generate the pdf file.

License

Open Source License

Parameter

Parameter	Description
dotFile	a parameter

Exception

Parameter	Description
IOException	an exception
InterruptedException	an exception

Declaration

private static File executeDotCommand(final File dotFile) throws IOException, InterruptedException 

Method Source Code

//package com.java2s;
/*//from w  w w.  j av a2s . c  o m
 * Copyright 2012 jccastrejon
 *  
 * This file is part of ExSchema.
 *
 * ExSchema is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * any later version.
 *
 * ExSchema is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
    
 * You should have received a copy of the GNU General Public License
 * along with ExSchema. If not, see <http://www.gnu.org/licenses/>.
 */

import java.io.File;

import java.io.IOException;

public class Main {
    /**
     * Execute Graphviz dot's command to generate the pdf file.
     * 
     * @param dotFile
     * @throws IOException
     * @throws InterruptedException
     */
    private static File executeDotCommand(final File dotFile) throws IOException, InterruptedException {
        Process process;
        int processCode;
        File returnValue;
        String dotCommand;

        returnValue = new File(dotFile.getParent(), "schemas.pdf");
        dotCommand = "dot -Tpdf " + dotFile.getAbsolutePath() + " -o " + returnValue.getAbsolutePath();
        process = Runtime.getRuntime().exec(dotCommand);
        processCode = process.waitFor();
        dotFile.delete();

        if (processCode != 0) {
            throw new RuntimeException("An error ocurred while executing: " + dotCommand);
        }

        return returnValue;
    }
}

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