FileMonitor.java Source code

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Here is the source code for FileMonitor.java

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/*
 * JBoss DNA (http://www.jboss.org/dna)
 * See the COPYRIGHT.txt file distributed with this work for information
 * regarding copyright ownership.  Some portions may be licensed
 * to Red Hat, Inc. under one or more contributor license agreements.
 * See the AUTHORS.txt file in the distribution for a full listing of 
 * individual contributors. 
 *
 * JBoss DNA is free software. Unless otherwise indicated, all code in JBoss DNA
 * is licensed to you 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.
 *
 * JBoss DNA 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 software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

public class FileMonitor {

    /**
     * Copy the source file system structure into the supplied target location. If
     * the source is a file, the destiniation will be created as a file; if the
     * source is a directory, the destination will be created as a directory.
     * 
     * @param sourceFileOrDirectory
     *          the file or directory whose contents are to be copied into the
     *          target location
     * @param destinationFileOrDirectory
     *          the location where the copy is to be placed; does not need to
     *          exist, but if it does its type must match that of <code>src</code>
     * @return the number of files (not directories) that were copied
     * @throws IllegalArgumentException
     *           if the <code>src</code> or <code>dest</code> references are
     *           null
     * @throws IOException
     */
    public static int copy(File sourceFileOrDirectory, File destinationFileOrDirectory) throws IOException {
        int numberOfFilesCopied = 0;
        if (sourceFileOrDirectory.isDirectory()) {
            destinationFileOrDirectory.mkdirs();
            String list[] = sourceFileOrDirectory.list();

            for (int i = 0; i < list.length; i++) {
                String dest1 = destinationFileOrDirectory.getPath() + File.separator + list[i];
                String src1 = sourceFileOrDirectory.getPath() + File.separator + list[i];
                numberOfFilesCopied += copy(new File(src1), new File(dest1));
            }
        } else {
            InputStream fin = new FileInputStream(sourceFileOrDirectory);
            fin = new BufferedInputStream(fin);
            try {
                OutputStream fout = new FileOutputStream(destinationFileOrDirectory);
                fout = new BufferedOutputStream(fout);
                try {
                    int c;
                    while ((c = fin.read()) >= 0) {
                        fout.write(c);
                    }
                } finally {
                    fout.close();
                }
            } finally {
                fin.close();
            }
            numberOfFilesCopied++;
        }
        return numberOfFilesCopied;
    }
}