Example usage for org.apache.commons.compress.archivers.jar JarArchiveOutputStream flush

Introduction

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

Prototype

public void flush() throws IOException 

Source Link

Document

Flushes this output stream and forces any buffered output bytes to be written out to the stream.

Usage

From source file:com.ikon.util.ArchiveUtils.java

/**
 * Recursively create JAR archive from directory 
 *//*from  w  w  w . ja  v  a2 s  . c  o m*/
public static void createJar(File path, String root, OutputStream os) throws IOException {
    log.debug("createJar({}, {}, {})", new Object[] { path, root, os });

    if (path.exists() && path.canRead()) {
        JarArchiveOutputStream jaos = new JarArchiveOutputStream(os);
        jaos.setComment("Generated by openkm");
        jaos.setCreateUnicodeExtraFields(UnicodeExtraFieldPolicy.ALWAYS);
        jaos.setUseLanguageEncodingFlag(true);
        jaos.setFallbackToUTF8(true);
        jaos.setEncoding("UTF-8");

        // Prevents java.util.jar.JarException: JAR file must have at least one entry
        JarArchiveEntry jae = new JarArchiveEntry(root + "/");
        jaos.putArchiveEntry(jae);
        jaos.closeArchiveEntry();

        createJarHelper(path, jaos, root);

        jaos.flush();
        jaos.finish();
        jaos.close();
    } else {
        throw new IOException("Can't access " + path);
    }

    log.debug("createJar: void");
}

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From source file:com.openkm.util.ArchiveUtils.java

/**
 * Recursively create JAR archive from directory
 *///  w  w w.j  a v a  2  s  .c  o m
public static void createJar(File path, String root, OutputStream os) throws IOException {
    log.debug("createJar({}, {}, {})", new Object[] { path, root, os });

    if (path.exists() && path.canRead()) {
        JarArchiveOutputStream jaos = new JarArchiveOutputStream(os);
        jaos.setComment("Generated by OpenKM");
        jaos.setCreateUnicodeExtraFields(UnicodeExtraFieldPolicy.ALWAYS);
        jaos.setUseLanguageEncodingFlag(true);
        jaos.setFallbackToUTF8(true);
        jaos.setEncoding("UTF-8");

        // Prevents java.util.jar.JarException: JAR file must have at least one entry
        JarArchiveEntry jae = new JarArchiveEntry(root + "/");
        jaos.putArchiveEntry(jae);
        jaos.closeArchiveEntry();

        createJarHelper(path, jaos, root);

        jaos.flush();
        jaos.finish();
        jaos.close();
    } else {
        throw new IOException("Can't access " + path);
    }

    log.debug("createJar: void");
}

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From source file:com.jrummyapps.busybox.signing.ZipSigner.java

/** Copy all the files in a manifest from input to output. */
private static void copyFiles(Manifest manifest, JarFile in, JarArchiveOutputStream out, long timestamp)
        throws IOException {
    final byte[] buffer = new byte[4096];
    int num;/*from  w  ww  .j a  va2 s  .  com*/

    final Map<String, Attributes> entries = manifest.getEntries();
    final List<String> names = new ArrayList<>(entries.keySet());
    Collections.sort(names);
    for (final String name : names) {
        final JarEntry inEntry = in.getJarEntry(name);
        if (inEntry.getMethod() == JarArchiveEntry.STORED) {
            // Preserve the STORED method of the input entry.
            out.putArchiveEntry(new JarArchiveEntry(inEntry));
        } else {
            // Create a new entry so that the compressed len is recomputed.
            final JarArchiveEntry je = new JarArchiveEntry(name);
            je.setTime(timestamp);
            out.putArchiveEntry(je);
        }

        final InputStream data = in.getInputStream(inEntry);
        while ((num = data.read(buffer)) > 0) {
            out.write(buffer, 0, num);
        }
        out.flush();
        out.closeArchiveEntry();
    }
}

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