Example usage for org.apache.lucene.util StringHelper randomId

Introduction

In this page you can find the example usage for org.apache.lucene.util StringHelper randomId.

Prototype

public static byte[] randomId() 

Source Link

Document

Generates a non-cryptographic globally unique id.

Usage

From source file:org.apache.solr.util.IdUtils.java

License:Apache License

/**
 * Generate a short random id (see {@link StringHelper#randomId()}).
 *//*w ww .j a v  a 2s  . c o m*/
public static final String randomId() {
    return StringHelper.idToString(StringHelper.randomId());
}

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From source file:org.elasticsearch.bootstrap.Bootstrap.java

License:Apache License

/** initialize native resources */
public static void initializeNatives(Path tmpFile, boolean mlockAll, boolean seccomp, boolean ctrlHandler) {
    final ESLogger logger = Loggers.getLogger(Bootstrap.class);

    // check if the user is running as root, and bail
    if (Natives.definitelyRunningAsRoot()) {
        if (Boolean.parseBoolean(System.getProperty("es.insecure.allow.root"))) {
            logger.warn("running as ROOT user. this is a bad idea!");
        } else {/*w  w w  . ja  v  a  2  s .  com*/
            throw new RuntimeException("don't run elasticsearch as root.");
        }
    }

    // enable secure computing mode
    if (seccomp) {
        Natives.trySeccomp(tmpFile);
    }

    // mlockall if requested
    if (mlockAll) {
        if (Constants.WINDOWS) {
            Natives.tryVirtualLock();
        } else {
            Natives.tryMlockall();
        }
    }

    // listener for windows close event
    if (ctrlHandler) {
        Natives.addConsoleCtrlHandler(new ConsoleCtrlHandler() {
            @Override
            public boolean handle(int code) {
                if (CTRL_CLOSE_EVENT == code) {
                    logger.info("running graceful exit on windows");
                    Bootstrap.stop();
                    return true;
                }
                return false;
            }
        });
    }

    // force remainder of JNA to be loaded (if available).
    try {
        JNAKernel32Library.getInstance();
    } catch (Throwable ignored) {
        // we've already logged this.
    }

    // init lucene random seed. it will use /dev/urandom where available:
    StringHelper.randomId();
}

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From source file:org.elasticsearch.bootstrap.BootstrapProxy.java

License:Apache License

/**
 * initialize native resources//w  w w . jav a2 s .  com
 */
static void initializeNatives(Path tmpFile, boolean mlockAll, boolean seccomp, boolean ctrlHandler) {
    final Logger logger = Loggers.getLogger(BootstrapProxy.class);

    // check if the user is running as root, and bail
    if (Natives.definitelyRunningAsRoot()) {
        throw new RuntimeException("can not run crate as root");
    }

    // enable secure computing mode
    if (seccomp) {
        Natives.trySeccomp(tmpFile);
    }

    // mlockall if requested
    if (mlockAll) {
        if (Constants.WINDOWS) {
            Natives.tryVirtualLock();
        } else {
            Natives.tryMlockall();
        }
    }

    // listener for windows close event
    if (ctrlHandler) {
        Natives.addConsoleCtrlHandler(code -> {
            if (ConsoleCtrlHandler.CTRL_CLOSE_EVENT == code) {
                logger.info("running graceful exit on windows");
                try {
                    BootstrapProxy.stop();
                } catch (IOException e) {
                    throw new ElasticsearchException("failed to stop node", e);
                }
                return true;
            }
            return false;
        });
    }

    // force remainder of JNA to be loaded (if available).
    try {
        JNAKernel32Library.getInstance();
    } catch (Exception ignored) {
        // we've already logged this.
    }

    Natives.trySetMaxNumberOfThreads();
    Natives.trySetMaxSizeVirtualMemory();

    // init lucene random seed. it will use /dev/urandom where available:
    StringHelper.randomId();
}

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From source file:org.elasticsearch.bootstrap.Security.java

License:Apache License

/** 
 * Initializes securitymanager for the environment
 * Can only happen once!//  www.  j a va 2 s .c o  m
 */
static void configure(Environment environment) throws IOException {
    // init lucene random seed. it will use /dev/urandom where available.
    StringHelper.randomId();
    InputStream config = Security.class.getResourceAsStream(POLICY_RESOURCE);
    if (config == null) {
        throw new NoSuchFileException(POLICY_RESOURCE);
    }
    Path newConfig = processTemplate(config, environment);
    System.setProperty("java.security.policy", newConfig.toString());
    System.setSecurityManager(new SecurityManager());
    IOUtils.deleteFilesIgnoringExceptions(newConfig); // TODO: maybe log something if it fails?
}

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From source file:org.sonar.search.SearchServer.java

License:Open Source License

private static void initBootstrap() {
    // init lucene random seed. it will use /dev/urandom where available:
    StringHelper.randomId();
}

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