Example usage for java.util UUID randomUUID

Introduction

In this page you can find the example usage for java.util UUID randomUUID.

Prototype

public static UUID randomUUID()

Source Link

Document

Static factory to retrieve a type 4 (pseudo randomly generated) UUID.

Usage

From source file:costumetrade.common.util.PdfUtils.java

public static File createImagePdfFile(String urlString) {

    File tempFile = new File(path + File.separator + UUID.randomUUID().toString() + ".pdf");
    try (PDDocument doc = createImagePdf(urlString);) {
        doc.save(tempFile);// w w  w .j  a  v  a2  s  . c o m
    } catch (IOException e) {
        throw new RuntimeException("?pdf", e);
    }
    return tempFile;
}

From source file:Main.java

public static File saveBitmapToExternal(Bitmap bitmap, String targetFileDirPath) {
    if (bitmap == null || bitmap.isRecycled()) {
        return null;
    }/*  ww  w.  j  a va  2s.  c  om*/

    File targetFileDir = new File(targetFileDirPath);
    if (!targetFileDir.exists() && !targetFileDir.mkdirs()) {
        return null;
    }

    File targetFile = new File(targetFileDir, UUID.randomUUID().toString());
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
    FileOutputStream fos = null;
    try {
        fos = new FileOutputStream(targetFile);
        baos.writeTo(fos);
    } catch (FileNotFoundException e) {
        e.printStackTrace();
        return null;
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    } finally {
        try {
            baos.flush();
            baos.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        try {
            if (fos != null) {
                fos.flush();
                fos.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    return targetFile;
}

From source file:org.createnet.raptor.db.AbstractStorage.java

static public String generateId() {
    return UUID.randomUUID().toString();
}

From source file:Main.java

public static String getGcmKey(final Context context, final String accountName) {
    SharedPreferences sp = getSharedPreferences(context);
    String gcmKey = sp.getString(makeAccountSpecificPrefKey(accountName, PREFIX_PREF_GCM_KEY), null);

    // if there is no current GCM key, generate a new random one
    if (TextUtils.isEmpty(gcmKey)) {
        gcmKey = UUID.randomUUID().toString();
        Log.d("GoogleAcount",
                "No GCM key on account " + accountName + ". Generating random one: " + sanitizeGcmKey(gcmKey));
        setGcmKey(context, accountName, gcmKey);
    }/*from   w w w  .  j a v a  2  s . c  o m*/

    return gcmKey;
}

From source file:org.mule.modules.cmis.automation.functional.TestDataBuilder.java

public static String generateRandomShortString() {
    return String.format("qaTest%s", new Object[] { UUID.randomUUID().toString().substring(0, 7) });
}

From source file:com.example.db.User.java

public static User createNew(final String username, final String password) {
    final String id = UUID.randomUUID().toString();
    return new User(id, username, password, UserRole.forNormalUser(), LocalDateTime.now(ZoneId.of("UTC")));
}

From source file:com.fengduo.bee.commons.core.utils.Identities.java

/**
 * ?JDKUUID, Random?, -./*from   ww w .  j a  va 2 s.  c o  m*/
 */
public static String uuid2() {
    return UUID.randomUUID().toString().replaceAll("-", "");
}

From source file:codingsaint.util.UIDGenerator.java

/**
 * <code>getUID</code> :gives a JAVA UID
 * @return String :a universal Unique Identifier String
 *//*from  w w  w.  j  av  a 2s  .co  m*/
public static String getUID() {
    return UUID.randomUUID().toString().toUpperCase();
}

From source file:com.pytsoft.cachelock.util.KeyUtils.java

/**
 * Generate lock value depends on expiration time to store in the target lock key.
 *
 * <p>The value is composed of a random UUID and expiration time separated by default namespace separator.
 *
 * @param lockExpire//from ww w .j a  v a 2 s.c  o  m
 *         Lock expiration time in milliseconds
 *
 * @return Lock value as string
 */
public static String genLockValue(long lockExpire) {
    long expireTime = System.currentTimeMillis() + lockExpire + 1;
    return UUID.randomUUID().toString() + Constants.NAMESPACE_SEPARATOR + expireTime;
}

From source file:com.lakhi.employee.api.Session.java

public Session(String email) {
    this.email = email;
    this.accessToken = UUID.randomUUID().toString();
}