org.codehaus.mojo.smc.DotConvertor.java Source code

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Here is the source code for org.codehaus.mojo.smc.DotConvertor.java

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package org.codehaus.mojo.smc;

/*
 * Copyright 2006 The Apache Software Foundation.
 *
 * 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.
 */

import org.codehaus.plexus.util.cli.CommandLineUtils;
import org.codehaus.plexus.util.cli.Commandline;
import org.codehaus.plexus.util.cli.CommandLineException;
import org.apache.maven.plugin.logging.Log;

import java.util.List;
import java.io.File;

/**
 * Graphviz companion class :)
 *
 * @author <a href="jerome@coffeebreaks.org">Jerome Lacoste</a>
 * @version $Id: DotConvertor.java 1741 2006-03-28 13:10:51Z lacostej $
 */
public class DotConvertor {
    /**
     * Convert the specified .dot files to the specified formats using the graphviz tool
     * @see #convert(java.io.File, String, org.apache.maven.plugin.logging.Log)
     */
    public static void convert(List files, String[] formats, Log log) throws CommandLineException {
        for (int i = 0; i < files.size(); i++) {
            File file = (File) files.get(i);
            for (int j = 0; j < formats.length; j++) {
                String format = formats[j];
                convert(file, format, log);
            }
        }
    }

    /**
     * Convert the specified .dot files to the specified formats using the graphviz tool
     * @param file
     * @param format e.g. "png", "gif"
     * @param log
     */
    public static int convert(File file, String format, Log log) throws CommandLineException {
        Commandline cl = new Commandline();
        cl.setExecutable("dot");
        cl.createArgument().setValue("-T" + format);
        cl.createArgument().setValue("-o");
        cl.createArgument().setValue(file.getAbsolutePath().replace(".dot", "." + format));
        cl.createArgument().setValue(file.getAbsolutePath());

        log.debug("executing: " + cl.toString());

        CommandLineUtils.StringStreamConsumer stdout = new CommandLineUtils.StringStreamConsumer();
        CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();

        int exitCode = CommandLineUtils.executeCommandLine(cl, stdout, stderr);

        String output = stdout.getOutput();
        if (output.length() > 0) {
            log.debug(output);
        }
        String errOutput = stderr.getOutput();
        if (errOutput.length() > 0) {
            log.warn(errOutput);
        }
        return exitCode;
    }
}