org.nuiton.io.MirroredFileUpdater Maven / Gradle / Ivy

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Simple maven mojo api for our projects
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package org.nuiton.io;

/*
 * #%L
 * Helper Maven Plugin :: API
 * $Id: MirroredFileUpdater.java 876 2012-11-11 08:14:19Z tchemit $
 * $HeadURL: http://svn.nuiton.org/svn/maven-helper-plugin/tags/maven-helper-plugin-2.1/helper-maven-plugin-api/src/main/java/org/nuiton/io/MirroredFileUpdater.java $
 * %%
 * Copyright (C) 2009 - 2012 Codelutin, Tony Chemit
 * %%
 * This program 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 3 of the 
 * License, or (at your option) any later version.
 * 
 * This program 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 Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public 
 * License along with this program.  If not, see
 * .
 * #L%
 */

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.io.File;

/**
 * Simple base implementation of a {@link FileUpdater} for an updater with
 * a sourcedir and a destinationdir.
 *
 * @author tchemit 
 */
public class MirroredFileUpdater implements FileUpdater {

    /** to use log facility, just put in your code: log.info(\"...\"); */
    static private final Log log = LogFactory.getLog(MirroredFileUpdater.class);

    /** source basedir */
    protected File sourceDirectory;

    /** length of source basedir absolute path */
    protected int prefixSourceDirecotory;

    /** destination basedir */
    protected File destinationDirectory;

    protected String fileInPattern = "";

    protected String fileOutPattern = "";

    public MirroredFileUpdater(String fileInPattern,
                               String fileOutPattern,
                               File sourceDirectory,
                               File destinationDirectory) {
        this.fileInPattern = fileInPattern;
        this.fileOutPattern = fileOutPattern;
        this.sourceDirectory = sourceDirectory;
        this.destinationDirectory = destinationDirectory;
        if (sourceDirectory != null) {
            prefixSourceDirecotory = sourceDirectory.getAbsolutePath().length();
        }
        if (log.isDebugEnabled()) {
            log.debug(this);
        }
    }

    public File getSourceDirectory() {
        return sourceDirectory;
    }

    public File getDestinationDirectory() {
        return destinationDirectory;
    }

    public String getFileInPattern() {
        return fileInPattern;
    }

    public String getFileOutPattern() {
        return fileOutPattern;
    }

    public File getMirrorFile(File f) {
        String filename = f.getName();
        String file = f.getAbsolutePath().substring(prefixSourceDirecotory);
        file = file.substring(0, file.length() - filename.length());
        String destFilename = applyTransformationFilename(filename);
        String mirrorRelativePath = file + destFilename;
        return new File(destinationDirectory + File.separator +
                        mirrorRelativePath);
    }

    @Override
    public boolean isFileUpToDate(File f) {
        File mirror = getMirrorFile(f);
        return mirror.exists() && f.lastModified() < mirror.lastModified();
    }

    public void setDestinationDirectory(File destinationDirectory) {
        this.destinationDirectory = destinationDirectory;
    }

    public void setSourceDirectory(File sourceDirectory) {
        this.sourceDirectory = sourceDirectory;
        prefixSourceDirecotory = sourceDirectory.getAbsolutePath().length();
    }

    public void setFileInPattern(String fileInPattern) {
        this.fileInPattern = fileInPattern;
    }

    public void setFileOutPattern(String fileOutPattern) {
        this.fileOutPattern = fileOutPattern;
    }

    public String applyTransformationFilename(String filename) {
        return filename.replaceAll(fileInPattern, fileOutPattern);
    }

    @Override
    public String toString() {
        return super.toString() + "";
    }
}