Example usage for org.apache.commons.compress.archivers.sevenz SevenZFile read

Introduction

In this page you can find the example usage for org.apache.commons.compress.archivers.sevenz SevenZFile read.

Prototype

public int read(final byte[] b) throws IOException 

Source Link

Document

Reads data into an array of bytes.

Usage

From source file:com.espringtran.compressor4j.processor.SevenZipProcessor.java

/**
 * Read from compressed file//  w w w  .java  2s  .c  om
 * 
 * @param srcPath
 *            path of compressed file
 * @param fileCompressor
 *            FileCompressor object
 * @throws Exception
 */
@Override
public void read(String srcPath, FileCompressor fileCompressor) throws Exception {
    long t1 = System.currentTimeMillis();
    byte[] data = FileUtil.convertFileToByte(srcPath);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    SevenZFile sevenZFile = new SevenZFile(new File(srcPath));
    try {
        byte[] buffer = new byte[1024];
        int readByte;
        SevenZArchiveEntry entry = sevenZFile.getNextEntry();
        while (entry != null && entry.getSize() > 0) {
            long t2 = System.currentTimeMillis();
            baos = new ByteArrayOutputStream();
            readByte = sevenZFile.read(buffer);
            while (readByte != -1) {
                baos.write(buffer, 0, readByte);
                readByte = sevenZFile.read(buffer);
            }
            BinaryFile binaryFile = new BinaryFile(entry.getName(), baos.toByteArray());
            fileCompressor.addBinaryFile(binaryFile);
            LogUtil.createAddFileLog(fileCompressor, binaryFile, t2, System.currentTimeMillis());
            entry = sevenZFile.getNextEntry();
        }
    } catch (Exception e) {
        FileCompressor.LOGGER.error("Error on get compressor file", e);
    } finally {
        sevenZFile.close();
        baos.close();
    }
    LogUtil.createReadLog(fileCompressor, srcPath, data.length, t1, System.currentTimeMillis());
}

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From source file:inventory.pl.services.BackupService.java

public void restore(String source, String outputFolder) {
    byte[] buffer = new byte[1024];

    try {/*from  ww w. ja  v  a2 s  .  c  o m*/

        //create output directory is not exists
        File folder = new File(outputFolder);
        if (!folder.exists()) {
            folder.mkdir();
        }

        //get the zip file content
        SevenZFile sevenZFile = new SevenZFile(new File(source));
        //get the zipped file list entry
        SevenZArchiveEntry ze = sevenZFile.getNextEntry();

        while (ze != null) {

            String fileName = ze.getName();
            File newFile = new File(outputFolder + File.separator + fileName);

            System.out.println("file unzip : " + newFile.getAbsoluteFile());

            //create all non exists folders
            //else you will hit FileNotFoundException for compressed folder
            new File(newFile.getParent()).mkdirs();

            FileOutputStream fos = new FileOutputStream(newFile);

            int len;
            while ((len = sevenZFile.read(buffer)) > 0) {
                fos.write(buffer, 0, len);
            }

            fos.close();
            ze = sevenZFile.getNextEntry();
        }

        sevenZFile.close();

        System.out.println("Done");

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

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From source file:org.codehaus.plexus.archiver.sevenz.SevenZUnArchiver.java

protected void execute() throws ArchiverException {
    File source = getSourceFile();
    File dest = this.getDestDirectory();
    if (source.lastModified() > dest.lastModified()) {
        try {//from  w  w  w  .  j  av a 2 s.c o  m
            SevenZFile sevenZFile = new SevenZFile(source);
            SevenZArchiveEntry entry;
            FileOutputStream fos;
            byte[] bytes = new byte[1024];
            int read;
            long offset = 0;
            long size;
            while ((entry = sevenZFile.getNextEntry()) != null) {
                fos = new FileOutputStream(Paths.get(dest.getAbsolutePath(), entry.getName()).toFile());
                size = entry.getSize();
                do {
                    read = sevenZFile.read(bytes);
                    if (read > 0)
                        fos.write(bytes, 0, read);
                } while (size > offset && read > 0);
                fos.close();
            }
            sevenZFile.close();
        } catch (IOException ioe) {
            throw new ArchiverException(
                    "Problem unzipping 7z file " + source.getAbsolutePath() + " to " + dest.getAbsolutePath(),
                    ioe);
        }
    }
}

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