Example usage for java.util.zip CRC32 getValue

Introduction

In this page you can find the example usage for java.util.zip CRC32 getValue.

Prototype

@Override
public long getValue()

Source Link

Document

Returns CRC-32 value.

Usage

From source file:me.j360.dubbo.modules.util.text.HashUtil.java

/**
 * crc32int, ?./*from www .  ja  va 2s . co  m*/
 * 
 * Guavacrc32, longJDK
 */
public static int crc32AsInt(@NotNull byte[] input) {
    CRC32 crc32 = new CRC32();
    crc32.update(input);
    // CRC32 ? 32bit intCheckSum??long??
    return (int) crc32.getValue();
}

From source file:com.aol.advertising.qiao.util.CommonUtils.java

public static long checkSum(byte[] bytes) {
    CRC32 crc = new CRC32();
    crc.update(bytes);//from   w w  w . j  av a 2s.  com
    return crc.getValue();

}

From source file:Main.java

public static String getCRC32(File file) {
    CRC32 crc32 = new CRC32();
    CheckedInputStream checkedinputstream = null;
    String crc = null;//from  www .  j  a v  a2  s .c o  m
    try {
        checkedinputstream = new CheckedInputStream(new FileInputStream(file), crc32);
        byte[] buf = new byte[1024];
        while (checkedinputstream.read(buf) >= 0) {
        }
        crc = Long.toHexString(crc32.getValue()).toUpperCase();
    } catch (Exception e) {
        Log.w(TAG, e);
        Log.e("WxException", e.getMessage(), e);
    } finally {
        if (checkedinputstream != null) {
            try {
                checkedinputstream.close();
            } catch (IOException e) {
            }
        }
    }
    return crc;
}

From source file:com.rom.jmultipatcher.Utils.java

public static long getCRC32(final String filepath, final int bytesBeforeEnd) throws IOException {
    final CRC32 sum_control = new CRC32();
    final byte[] fileAsByteArray = FileUtils.readFileToByteArray(new File(filepath));
    final byte[] copyOfRange = Arrays.copyOfRange(fileAsByteArray, 0, fileAsByteArray.length - bytesBeforeEnd);
    sum_control.update(copyOfRange);//from   w  ww. jav  a 2 s.c om
    return sum_control.getValue();
}

From source file:com.aimluck.eip.util.ALCellularUtils.java

/**
 * ?? ID ??? URL ??????//from   www  .  jav a2  s . c  o m
 * 
 * @param username
 * @return
 */
public static String getCheckValueForCellLogin(String username, String userid) {
    if (username == null || username.length() == 0 || userid == null) {
        return "";
    }

    String marge = username + userid;
    CRC32 crc32 = new CRC32();
    crc32.update(marge.getBytes());
    long value = crc32.getValue();
    String base64value = null;
    try {
        base64value = new String(Base64.encodeBase64(String.valueOf(value).getBytes()));
    } catch (Exception e) {
    }

    return (base64value == null) ? "" : base64value.toLowerCase();
}

From source file:com.petercho.Encoder.java

public static long checksumCRC32(String text) {
    CRC32 crc = new CRC32();
    try (InputStream is = new ByteArrayInputStream(text.getBytes(DEFAULT_ENCODING))) {
        checksum(is, crc);//from   w  w w .  j  a  va  2 s. c o  m
    } catch (IOException e) {
        throw new IllegalStateException("Error getting checksum, e:" + e, e);
    }
    return crc.getValue();
}

From source file:com.jhash.oimadmin.Utils.java

public static void createJarFileFromContent(Map<String, byte[]> content, String[] fileSequence,
        String jarFileName) {//from   ww w  .  j  av a  2 s.  c o m
    logger.trace("createJarFileFromContent({},{})", content, jarFileName);
    logger.trace("Trying to create a new jar file");
    try (ZipOutputStream jarFileOutputStream = new ZipOutputStream(new FileOutputStream(jarFileName))) {
        jarFileOutputStream.setMethod(ZipOutputStream.STORED);
        for (String jarItem : fileSequence) {
            logger.trace("Processing item {}", jarItem);
            byte[] fileContent = content.get(jarItem);
            if (fileContent == null)
                throw new NullPointerException("Failed to locate content for file " + jarItem);
            JarEntry pluginXMLFileEntry = new JarEntry(jarItem);
            pluginXMLFileEntry.setTime(System.currentTimeMillis());
            pluginXMLFileEntry.setSize(fileContent.length);
            pluginXMLFileEntry.setCompressedSize(fileContent.length);
            CRC32 crc = new CRC32();
            crc.update(fileContent);
            pluginXMLFileEntry.setCrc(crc.getValue());
            jarFileOutputStream.putNextEntry(pluginXMLFileEntry);
            jarFileOutputStream.write(fileContent);
            jarFileOutputStream.closeEntry();
        }
    } catch (Exception exception) {
        throw new OIMAdminException("Failed to create the Jar file " + jarFileName, exception);
    }
}

From source file:org.mariotaku.twidere.util.TwitterContentUtils.java

public static boolean isOfficialKey(final Context context, final String consumerKey,
        final String consumerSecret) {
    if (context == null || consumerKey == null || consumerSecret == null)
        return false;
    final String[] keySecrets = context.getResources()
            .getStringArray(R.array.values_official_consumer_secret_crc32);
    final CRC32 crc32 = new CRC32();
    final byte[] consumerSecretBytes = consumerSecret.getBytes(Charset.forName("UTF-8"));
    crc32.update(consumerSecretBytes, 0, consumerSecretBytes.length);
    final long value = crc32.getValue();
    crc32.reset();//from w ww. ja  v  a2 s.  c  o  m
    for (final String keySecret : keySecrets) {
        if (Long.parseLong(keySecret, 16) == value)
            return true;
    }
    return false;
}

From source file:org.mariotaku.twidere.util.TwitterContentUtils.java

public static String getOfficialKeyName(final Context context, final String consumerKey,
        final String consumerSecret) {
    if (context == null || consumerKey == null || consumerSecret == null)
        return null;
    final String[] keySecrets = context.getResources()
            .getStringArray(R.array.values_official_consumer_secret_crc32);
    final String[] keyNames = context.getResources().getStringArray(R.array.names_official_consumer_secret);
    final CRC32 crc32 = new CRC32();
    final byte[] consumerSecretBytes = consumerSecret.getBytes(Charset.forName("UTF-8"));
    crc32.update(consumerSecretBytes, 0, consumerSecretBytes.length);
    final long value = crc32.getValue();
    crc32.reset();/*from   w w w.j  a va 2  s .  c o m*/
    for (int i = 0, j = keySecrets.length; i < j; i++) {
        if (Long.parseLong(keySecrets[i], 16) == value)
            return keyNames[i];
    }
    return null;
}

From source file:org.mariotaku.twidere.util.TwitterContentUtils.java

@NonNull
public static ConsumerKeyType getOfficialKeyType(final Context context, final String consumerKey,
        final String consumerSecret) {
    if (context == null || consumerKey == null || consumerSecret == null) {
        return ConsumerKeyType.UNKNOWN;
    }/*from  www  . ja va 2s .  co m*/
    final String[] keySecrets = context.getResources()
            .getStringArray(R.array.values_official_consumer_secret_crc32);
    final String[] keyNames = context.getResources().getStringArray(R.array.types_official_consumer_secret);
    final CRC32 crc32 = new CRC32();
    final byte[] consumerSecretBytes = consumerSecret.getBytes(Charset.forName("UTF-8"));
    crc32.update(consumerSecretBytes, 0, consumerSecretBytes.length);
    final long value = crc32.getValue();
    crc32.reset();
    for (int i = 0, j = keySecrets.length; i < j; i++) {
        if (Long.parseLong(keySecrets[i], 16) == value) {
            return ConsumerKeyType.parse(keyNames[i]);
        }
    }
    return ConsumerKeyType.UNKNOWN;
}