Examples with Packer java.util.jar.Pack200.Packer used on opensource projects

Example 1 with Packer

use of java.util.jar.Pack200.Packer in project jdk8u_jdk by JetBrains.

the class Utils method pack.

// given a jar file foo.jar will write to foo.pack
static void pack(JarFile jarFile, File packFile) throws IOException {
    Pack200.Packer packer = Pack200.newPacker();
    Map<String, String> p = packer.properties();
    // Take the time optimization vs. space
    // CAUTION: do not use 0.
    p.put(packer.EFFORT, "1");
    // Make the memory consumption as effective as possible
    p.put(packer.SEGMENT_LIMIT, "10000");
    // ignore all JAR deflation requests to save time
    p.put(packer.DEFLATE_HINT, packer.FALSE);
    // save the file ordering of the original JAR
    p.put(packer.KEEP_FILE_ORDER, packer.TRUE);
    FileOutputStream fos = null;
    try {
        // Write out to a jtreg scratch area
        fos = new FileOutputStream(packFile);
        // Call the packer
        packer.pack(jarFile, fos);
    } finally {
        close(fos);
    }
}

Example 2 with Packer

use of java.util.jar.Pack200.Packer in project jdk8u_jdk by JetBrains.

the class T7007157 method main.

public static void main(String... args) throws IOException {
    File sdkHome = Utils.JavaSDK;
    File testJar = new File(new File(sdkHome, "lib"), "tools.jar");
    JarFile jarFile = new JarFile(testJar);
    File packFile = new File("foo.pack");
    Pack200.Packer packer = Pack200.newPacker();
    Map<String, String> p = packer.properties();
    // Take the time optimization vs. space
    // CAUTION: do not use 0.
    p.put(packer.EFFORT, "1");
    // Make the memory consumption as effective as possible
    p.put(packer.SEGMENT_LIMIT, "10000");
    // ignore all JAR deflation requests to save time
    p.put(packer.DEFLATE_HINT, packer.FALSE);
    // save the file ordering of the original JAR
    p.put(packer.KEEP_FILE_ORDER, packer.TRUE);
    // strip the StackMapTables
    p.put(packer.CODE_ATTRIBUTE_PFX + "StackMapTable", packer.STRIP);
    FileOutputStream fos = null;
    try {
        // Write out to a jtreg scratch area
        fos = new FileOutputStream(packFile);
        // Call the packer
        packer.pack(jarFile, fos);
    } finally {
        Utils.close(fos);
        Utils.close(jarFile);
    }
    Utils.cleanup();
}

Example 3 with Packer

use of java.util.jar.Pack200.Packer in project Lucee by lucee.

the class Pack200Util method jar2pack.

public static void jar2pack(InputStream is, OutputStream os, boolean closeIS, boolean closeOS) throws IOException {
    // Create the Packer object
    Packer packer = Pack200.newPacker();
    // Initialize the state by setting the desired properties
    Map p = packer.properties();
    // take more time choosing codings for better compression
    // default is "5"
    p.put(Packer.EFFORT, "7");
    // use largest-possible archive segments (>10% better compression).
    p.put(Packer.SEGMENT_LIMIT, "-1");
    // reorder files for better compression.
    p.put(Packer.KEEP_FILE_ORDER, Packer.FALSE);
    // smear modification times to a single value.
    p.put(Packer.MODIFICATION_TIME, Packer.LATEST);
    // ignore all JAR deflation requests,
    // transmitting a single request to use "store" mode.
    p.put(Packer.DEFLATE_HINT, Packer.FALSE);
    // discard debug attributes
    p.put(Packer.CODE_ATTRIBUTE_PFX + "LineNumberTable", Packer.STRIP);
    // throw an error if an attribute is unrecognized
    p.put(Packer.UNKNOWN_ATTRIBUTE, Packer.ERROR);
    JarInputStream jis = null;
    os = new GZIPOutputStream(os);
    PrintStream err = System.err;
    try {
        System.setErr(new PrintStream(new DevNullOutputStream()));
        jis = new JarInputStream(is);
        packer.pack(jis, os);
    } finally {
        System.setErr(err);
        if (closeIS)
            Util.closeEL(jis);
        if (closeOS)
            Util.closeEL(os);
    }
}

Example 4 with Packer

use of java.util.jar.Pack200.Packer in project jdk8u_jdk by JetBrains.

the class Pack200Props method verifyDefaults.

private static void verifyDefaults() {
    Map<String, String> expectedDefaults = new HashMap<>();
    Packer p = Pack200.newPacker();
    expectedDefaults.put("com.sun.java.util.jar.pack.default.timezone", p.FALSE);
    expectedDefaults.put("com.sun.java.util.jar.pack.disable.native", p.FALSE);
    expectedDefaults.put("com.sun.java.util.jar.pack.verbose", "0");
    expectedDefaults.put(p.CLASS_ATTRIBUTE_PFX + "CompilationID", "RUH");
    expectedDefaults.put(p.CLASS_ATTRIBUTE_PFX + "SourceID", "RUH");
    expectedDefaults.put(p.CODE_ATTRIBUTE_PFX + "CharacterRangeTable", "NH[PHPOHIIH]");
    expectedDefaults.put(p.CODE_ATTRIBUTE_PFX + "CoverageTable", "NH[PHHII]");
    expectedDefaults.put(p.DEFLATE_HINT, p.KEEP);
    expectedDefaults.put(p.EFFORT, "5");
    expectedDefaults.put(p.KEEP_FILE_ORDER, p.TRUE);
    expectedDefaults.put(p.MODIFICATION_TIME, p.KEEP);
    expectedDefaults.put(p.SEGMENT_LIMIT, "-1");
    expectedDefaults.put(p.UNKNOWN_ATTRIBUTE, p.PASS);
    Map<String, String> props = p.properties();
    int errors = 0;
    for (String key : expectedDefaults.keySet()) {
        String def = expectedDefaults.get(key);
        String x = props.get(key);
        if (x == null) {
            System.out.println("Error: key not found:" + key);
            errors++;
        } else {
            if (!def.equals(x)) {
                System.out.println("Error: key " + key + "\n  value expected: " + def + "\n  value obtained: " + x);
                errors++;
            }
        }
    }
    if (errors > 0) {
        throw new RuntimeException(errors + " error(s) encountered in default properties verification");
    }
}

Example 5 with Packer

use of java.util.jar.Pack200.Packer in project jdk8u_jdk by JetBrains.

the class TestExceptions method pack200Test3.

// test the Pack200.pack(JarInputStream, OutputStream);
static void pack200Test3() {
    List<PackTestJarInputStream> tlist = new ArrayList<PackTestJarInputStream>();
    try {
        // setup the test scenarios
        try {
            tlist.add(new PackTestJarInputStream((JarInputStream) null, null));
            tlist.add(new PackTestJarInputStream((JarInputStream) null, new ByteArrayOutputStream()));
            tlist.add(new PackTestJarInputStream(new JarInputStream(new FileInputStream(testJar)), null));
        } catch (Exception e) {
            throw new Error("Initialization error", e);
        }
        for (PackTestJarInputStream ti : tlist) {
            System.out.println(ti);
            try {
                Pack200.Packer p = Pack200.newPacker();
                p.pack(ti.getJarInputStream(), ti.getOutputStream());
            } catch (Exception e) {
                ti.checkException(e);
            }
        }
    } finally {
        // keep jprt happy
        for (PackTestJarInputStream ti : tlist) {
            if (ti != null) {
                ti.close();
            }
        }
    }
}