com.ipcglobal.fredimport.util.FredUtils.java Source code

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Here is the source code for com.ipcglobal.fredimport.util.FredUtils.java

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/**
 *    Copyright 2015 IPC Global (http://www.ipc-global.com) and others.
 * 
 *    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.
 */
package com.ipcglobal.fredimport.util;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Properties;

import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream;
import org.apache.commons.compress.compressors.gzip.GzipCompressorOutputStream;
import org.apache.commons.compress.utils.IOUtils;

/**
 * The Class FredUtils.
 */
public class FredUtils {

    /**
     * Creates a tar.gz file at the specified path with the contents of the specified directory.
     *
     * @param directoryPath the directory path
     * @param tarGzPath the tar gz path
     * @throws IOException             If anything goes wrong
     */
    public static void createTarGzOfDirectory(String directoryPath, String tarGzPath) throws IOException {
        FileOutputStream fOut = null;
        BufferedOutputStream bOut = null;
        GzipCompressorOutputStream gzOut = null;
        TarArchiveOutputStream tOut = null;
        try {
            fOut = new FileOutputStream(new File(tarGzPath));
            bOut = new BufferedOutputStream(fOut);
            gzOut = new GzipCompressorOutputStream(bOut);
            tOut = new TarArchiveOutputStream(gzOut);
            addFileToTarGz(tOut, directoryPath, "/");
        } finally {
            tOut.finish();
            tOut.close();
            gzOut.close();
            bOut.close();
            fOut.close();
        }
    }

    /**
     * Creates a tar entry for the path specified with a name built from the base passed in and the file/directory name. If the path is a directory, a recursive
     * call is made such that the full directory is added to the tar.
     *
     * @param tOut
     *            The tar file's output stream
     * @param path
     *            The filesystem path of the file/directory being added
     * @param base
     *            The base prefix to for the name of the tar file entry
     *
     * @throws IOException
     *             If anything goes wrong
     */
    private static void addFileToTarGz(TarArchiveOutputStream tOut, String path, String base) throws IOException {
        try {
            File f = new File(path);
            String entryName = base + f.getName();
            TarArchiveEntry tarEntry = new TarArchiveEntry(f, entryName);
            tOut.putArchiveEntry(tarEntry);
            if (f.isFile()) {
                // had to do this in 3 steps due to memory leak as per http://stackoverflow.com/questions/13461393/compress-directory-to-tar-gz-with-commons-compress/23524963#23524963 
                FileInputStream in = new FileInputStream(f);
                IOUtils.copy(in, tOut);
                in.close();

                tOut.closeArchiveEntry();
            } else {
                tOut.closeArchiveEntry();
                File[] children = f.listFiles();
                if (children != null) {
                    for (File child : children) {
                        addFileToTarGz(tOut, child.getAbsolutePath(), entryName + "/");
                    }
                }
            }
        } catch (Exception e) {
            System.out.println(e);
            e.printStackTrace();
            throw e;
        }
    }

    /**
     * Convert m secs to h mm ss.
     *
     * @param msecs the msecs
     * @return the string
     */
    public static String convertMSecsToHMmSs(long msecs) {
        return convertSecsToHMmSs(msecs / 1000L);
    }

    /**
     * Convert secs to h mm ss.
     *
     * @param seconds the seconds
     * @return the string
     */
    public static String convertSecsToHMmSs(long seconds) {
        long s = seconds % 60;
        long m = (seconds / 60) % 60;
        long h = (seconds / (60 * 60)) % 24;
        return String.format("%02d:%02d:%02d", h, m, s);
    }

    /**
     * Readfix path.
     *
     * @param propertyName the property name
     * @param properties the properties
     * @return the string
     */
    public static String readfixPath(String propertyName, Properties properties) {
        String pathName = properties.getProperty(propertyName).trim();
        if (pathName.endsWith(File.separator))
            return pathName;
        else
            return pathName + File.separator;
    }

}