nl.toolforge.karma.core.module.template.BaseModuleLayoutTemplate.java Source code

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Here is the source code for nl.toolforge.karma.core.module.template.BaseModuleLayoutTemplate.java

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/*
Karma core - Core of the Karma application
Copyright (C) 2004  Toolforge <www.toolforge.nl>
    
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
    
This library 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
Lesser General Public License for more details.
    
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/
package nl.toolforge.karma.core.module.template;

import nl.toolforge.karma.core.KarmaRuntimeException;
import nl.toolforge.karma.core.module.SourceModule;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;

/**
 * @author D.A. Smedes
 * @version $Id$
 */
public abstract class BaseModuleLayoutTemplate implements ModuleLayoutTemplate {

    protected static Log logger = LogFactory.getLog(BaseModuleLayoutTemplate.class);

    public abstract FileTemplate[] getFileElements();

    public abstract String[] getDirectoryElements();

    public final void createLayout(File baseDir) throws IOException {

        FileTemplate[] fileTemplates = getFileElements();
        String[] templateFiles = new String[fileTemplates.length];

        for (int i = 0; i < fileTemplates.length; i++) {

            FileTemplate fileTemplate = fileTemplates[i];
            logger.debug(
                    "Write template '" + fileTemplate.getSource() + "' to '" + fileTemplate.getTarget() + "'.");
            Reader input = new BufferedReader(new InputStreamReader(SourceModule.class
                    .getResourceAsStream(fileTemplate.getSource().toString().replace('\\', '/'))));

            File outputFile = new File(baseDir + File.separator + fileTemplate.getTarget());
            outputFile.getParentFile().mkdirs();
            outputFile.createNewFile();

            FileOutputStream output = new FileOutputStream(outputFile);

            while (input.ready()) {
                output.write(input.read());
            }
            templateFiles[i] = fileTemplate.getTarget().getPath();
            logger.debug("Wrote template.");
        }

        // Create directories.
        //
        String[] dirs = getDirectoryElements();

        for (int i = 0; i < dirs.length; i++) {

            File dirToAdd = new File(baseDir, dirs[i]);

            // Try to create the dirs
            if (!dirToAdd.mkdirs() && !dirToAdd.exists()) {
                // Failed to create the dirs and they do not exist yet.
                //
                throw new KarmaRuntimeException("Error while creating module layout.");
            }
        }
    }
}