Example usage for java.lang String hashCode

Introduction

In this page you can find the example usage for java.lang String hashCode.

Prototype

public int hashCode() 

Source Link

Document

Returns a hash code for this string.

Usage

From source file:automenta.climatenet.ImportKML.java

public static String getSerial(String layer, int serial) {
    return (Base64.getEncoder().encodeToString(
            BigInteger.valueOf(serial).add(BigInteger.valueOf(layer.hashCode()).shiftRight(32)).toByteArray()));
}

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From source file:msuresh.raftdistdb.RaftClient.java

public static void GetValue(String name, String key) throws FileNotFoundException {
    if (key == null || key.isEmpty()) {
        return;/*from   w w w  .  ja  v a  2  s  .c om*/
    }
    File configFile = new File(Constants.STATE_LOCATION + name + ".info");
    if (!configFile.exists() || configFile.isDirectory()) {
        FileNotFoundException ex = new FileNotFoundException();
        throw ex;
    }
    try {
        System.out.println("Getting key .. Hold on.");
        String content = new Scanner(configFile).useDelimiter("\\Z").next();
        JSONObject config = (JSONObject) (new JSONParser()).parse(content);
        Long numPart = (Long) config.get("countPartitions");
        Integer shardId = key.hashCode() % numPart.intValue();
        JSONArray memberJson = (JSONArray) config.get(shardId.toString());
        List<Address> members = new ArrayList<>();
        for (int i = 0; i < memberJson.size(); i++) {
            JSONObject obj = (JSONObject) memberJson.get(i);
            Long port = (Long) obj.get("port");
            String address = (String) obj.get("address");
            members.add(new Address(address, port.intValue()));
        }
        CopycatClient client = CopycatClient.builder(members).withTransport(new NettyTransport()).build();
        client.open().join();
        Object str = client.submit(new GetQuery(key)).get();
        System.out.println("For the key : " + key + ", the database returned the value : " + (String) str);
        client.close().join();
        while (client.isOpen()) {
            Thread.sleep(1000);
        }
    } catch (Exception ex) {
        System.out.println(ex.toString());
    }
}

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From source file:msuresh.raftdistdb.RaftClient.java

public static void SetValue(String name, String key, String value) throws FileNotFoundException {
    if (key == null || key.isEmpty()) {
        return;//from   w  ww  .j av  a2 s.co m
    }
    File configFile = new File(Constants.STATE_LOCATION + name + ".info");
    if (!configFile.exists() || configFile.isDirectory()) {
        FileNotFoundException ex = new FileNotFoundException();
        throw ex;
    }
    try {
        System.out.println("Adding key .. hold on..");
        String content = new Scanner(configFile).useDelimiter("\\Z").next();
        JSONObject config = (JSONObject) (new JSONParser()).parse(content);
        Long numPart = (Long) config.get("countPartitions");
        Integer shardId = key.hashCode() % numPart.intValue();
        JSONArray memberJson = (JSONArray) config.get(shardId.toString());
        List<Address> members = new ArrayList<>();
        for (int i = 0; i < memberJson.size(); i++) {
            JSONObject obj = (JSONObject) memberJson.get(i);
            Long port = (Long) obj.get("port");
            String address = (String) obj.get("address");
            members.add(new Address(address, port.intValue()));
        }
        CopycatClient client = CopycatClient.builder(members).withTransport(new NettyTransport()).build();
        client.open().join();
        client.submit(new PutCommand(key, value)).get();
        client.close().join();
        while (client.isOpen()) {
            Thread.sleep(1000);
        }
        System.out.println("key " + key + " with value : " + value + " has been added to the cluster");
    } catch (Exception ex) {
        System.out.println(ex.toString());
    }
}

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From source file:com.eurotong.orderhelperandroid.Common.java

public static String GetDeviceUniqueID() {
    //http://stackoverflow.com/questions/2785485/is-there-a-unique-android-device-id/2853253#2853253
    String android_id = Secure.getString(MyApplication.getAppContext().getContentResolver(), Secure.ANDROID_ID);

    long id = -1;
    long idMod = 0;
    String idString = "UNKNOWN";
    if (android_id != null) {
        id = abs(android_id.hashCode()); //could get negative value
        idString = Long.toString(id);
        idString = idString.concat("0000000000").substring(0, 10);
        id = Long.parseLong(idString);
        idMod = id % Define.MOD;/*ww  w  .  j  a  v  a2 s  .  c om*/
        String idModString = Long.toString(idMod);
        idModString = "00".concat(idModString);
        idModString = idModString.substring(idModString.length() - 2, idModString.length());
        idString = Long.toString(id) + idModString;
        //id=id / 10000;
    }
    return idString;
}

---

From source file:com.microsoft.azure.util.AzureUtil.java

/**
 * Creates a new VM base name given the input parameters.
 * @param templateName Template name//from  ww  w  .  j  a  v a2s  .com
 * @param osType Type of OS
 * @param numberOfVmsToCreate Number of VMs that will be created
 *       (which is added to the suffix of the VM name by azure)
 * @return 
 */
public static String getVMBaseName(String templateName, String deploymentName, String osType, int numberOfVMs) {
    if (!isValidTemplateName(templateName)) {
        throw new IllegalArgumentException("Invalid template name");
    }

    // For VM names, we use a simpler form.  VM names are pretty short 
    int numberOfDigits = (int) Math.floor(Math.log10((double) numberOfVMs)) + 1;
    // Get the hash of the deployment name
    Integer deploymentHashCode = deploymentName.hashCode();
    // Convert the int into a hex string and do a substring
    String shortenedDeploymentHash = Integer.toHexString(deploymentHashCode).substring(0,
            Constants.VM_NAME_HASH_LENGTH - 1);
    return String.format("%s%s",
            getShortenedTemplateName(templateName, osType, Constants.VM_NAME_HASH_LENGTH, numberOfDigits),
            shortenedDeploymentHash);
}

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From source file:im.r_c.android.fusioncache.DiskCache.java

/**
 * A hashing method that changes a string (like a URL) into a hash
 * suitable for using as a disk filename.
 *///from  ww w  .  ja  v  a 2  s . c  om
private static String hashKeyForDisk(String key) {
    String cacheKey;
    try {
        final MessageDigest mDigest = MessageDigest.getInstance("MD5");
        mDigest.update(key.getBytes());
        cacheKey = bytesToHexString(mDigest.digest());
    } catch (NoSuchAlgorithmException e) {
        cacheKey = String.valueOf(key.hashCode());
    }
    return cacheKey;
}

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From source file:Main.java

/**
 * Return pseudo unique ID//from w  w  w.j  a  v a 2 s  .  co  m
 * @return ID
 */
public static String getUniquePsuedoID() {
    // If all else fails, if the user does have lower than API 9 (lower
    // than Gingerbread), has reset their phone or 'Secure.ANDROID_ID'
    // returns 'null', then simply the ID returned will be solely based
    // off their Android device information. This is where the collisions
    // can happen.
    // Thanks http://www.pocketmagic.net/?p=1662!
    // Try not to use DISPLAY, HOST or ID - these items could change.
    // If there are collisions, there will be overlapping data
    String m_szDevIDShort = "35" + (Build.BOARD.length() % 10) + (Build.BRAND.length() % 10)
            + (Build.CPU_ABI.length() % 10) + (Build.DEVICE.length() % 10) + (Build.MANUFACTURER.length() % 10)
            + (Build.MODEL.length() % 10) + (Build.PRODUCT.length() % 10);

    // Thanks to @Roman SL!
    // http://stackoverflow.com/a/4789483/950427
    // Only devices with API >= 9 have android.os.Build.SERIAL
    // http://developer.android.com/reference/android/os/Build.html#SERIAL
    // If a user upgrades software or roots their phone, there will be a duplicate entry
    String serial = null;
    try {
        serial = android.os.Build.class.getField("SERIAL").get(null).toString();

        // Go ahead and return the serial for api => 9
        return new UUID(m_szDevIDShort.hashCode(), serial.hashCode()).toString();
    } catch (Exception e) {
        // String needs to be initialized
        serial = "serial"; // some value
    }

    // Thanks @Joe!
    // http://stackoverflow.com/a/2853253/950427
    // Finally, combine the values we have found by using the UUID class to create a unique identifier
    return new UUID(m_szDevIDShort.hashCode(), serial.hashCode()).toString();
}

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From source file:com.redhat.rhn.manager.profile.test.ProfileManagerTest.java

public static PackageListItem createItem(String evrString, int nameId) {
    PackageListItem pli = new PackageListItem();
    String[] evr = StringUtils.split(evrString, "-");
    pli.setName(evr[0]);//from  w w w . ja  v a 2 s.  c om
    pli.setVersion(evr[1]);
    pli.setRelease(evr[2]);
    pli.setEvrId(new Long(evrString.hashCode()));
    pli.setIdCombo(nameId + "|" + evrString.hashCode());
    pli.setEvr(evrString);
    pli.setNameId(new Long(nameId));
    return pli;
}

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From source file:com.redhat.rhn.manager.profile.test.ProfileManagerTest.java

public static PackageListItem createPackageListItem(String evrString, int nameId) {
    PackageListItem pli = new PackageListItem();
    String[] evr = StringUtils.split(evrString, "-");
    pli.setName(evr[0]);/*from   www.  j a va  2  s .  co  m*/
    pli.setVersion(evr[1]);
    pli.setRelease(evr[2]);
    pli.setEvrId(new Long(evrString.hashCode()));
    pli.setIdCombo(nameId + "|" + evrString.hashCode());
    pli.setEvr(evrString);
    pli.setNameId(new Long(nameId));
    PackageArch pa = PackageFactory.lookupPackageArchByLabel("x86_64");
    pli.setArch(pa.getLabel());
    pli.setArchId(pa.getId());
    return pli;
}

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From source file:Main.java

/**
 * Return pseudo unique ID//from  w w  w .j a va 2s. com
 * 
 * @return ID
 */
public static String getUniquePsuedoID() {
    // If all else fails, if the user does have lower than API 9 (lower
    // than Gingerbread), has reset their phone or 'Secure.ANDROID_ID'
    // returns 'null', then simply the ID returned will be solely based
    // off their Android device information. This is where the collisions
    // can happen.
    // Thanks http://www.pocketmagic.net/?p=1662!
    // Try not to use DISPLAY, HOST or ID - these items could change.
    // If there are collisions, there will be overlapping data
    String m_szDevIDShort = "35" + (Build.BOARD.length() % 10) + (Build.BRAND.length() % 10)
            + (Build.CPU_ABI.length() % 10) + (Build.DEVICE.length() % 10) + (Build.MANUFACTURER.length() % 10)
            + (Build.MODEL.length() % 10) + (Build.PRODUCT.length() % 10);

    // Thanks to @Roman SL!
    // http://stackoverflow.com/a/4789483/950427
    // Only devices with API >= 9 have android.os.Build.SERIAL
    // http://developer.android.com/reference/android/os/Build.html#SERIAL
    // If a user upgrades software or roots their phone, there will be a
    // duplicate entry
    String serial = null;
    try {
        serial = android.os.Build.class.getField("SERIAL").get(null).toString();

        // Go ahead and return the serial for api => 9
        return new UUID(m_szDevIDShort.hashCode(), serial.hashCode()).toString();
    } catch (Exception e) {
        // String needs to be initialized
        serial = "serial"; // some value
    }

    // Thanks @Joe!
    // http://stackoverflow.com/a/2853253/950427
    // Finally, combine the values we have found by using the UUID class to
    // create a unique identifier
    return new UUID(m_szDevIDShort.hashCode(), serial.hashCode()).toString();
}

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