Example usage for org.apache.commons.compress.archivers.jar JarArchiveInputStream read

Introduction

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

Prototype

public int read(byte b[]) throws IOException 

Source Link

Document

Reads some number of bytes from the input stream and stores them into the buffer array b.

Usage

From source file:es.jamisoft.comun.utils.compression.Jar.java

private void unjar(InputStream is, String outputDirectory) throws IOException {
    JarArchiveInputStream jis = new JarArchiveInputStream(is);
    JarArchiveEntry jarEntry = null;//from w w  w .j a v  a2s .  co  m
    byte buffer[] = new byte[1024];
    int readCount = 0;

    if (!outputDirectory.endsWith(File.separator)) {
        outputDirectory = outputDirectory + File.separator;
    }

    do {
        if ((jarEntry = jis.getNextJarEntry()) == null) {
            break;
        }

        if (jarEntry.isDirectory()) {
            File file = new File(outputDirectory + jarEntry.getName());

            if (!file.exists()) {
                file.mkdir();
            }
        } else {
            FileOutputStream fos = new FileOutputStream(outputDirectory + jarEntry.getName());

            while ((readCount = jis.read(buffer)) != -1) {
                fos.write(buffer, 0, readCount);
            }

            fos.close();
        }
    } while (true);

    jis.close();
}

---