Example usage for com.google.common.base Preconditions checkState

Introduction

In this page you can find the example usage for com.google.common.base Preconditions checkState.

Prototype

public static void checkState(boolean expression, @Nullable Object errorMessage)

Source Link

Document

Ensures the truth of an expression involving the state of the calling instance, but not involving any parameters to the calling method.

Usage

From source file:com.google.cloud.tools.eclipse.appengine.facets.NonSystemJobSuspender.java

public static void resume() {
    Preconditions.checkState(suspended.get(), "Not suspended.");
    resumeInternal();
}

From source file:com.nesscomputing.jms.JsonProducerCallback.java

@Override
@CheckForNull/*from w w  w.  j av  a  2s  .co  m*/
public Message buildMessage(final AbstractProducer<Object> producer, final Object data)
        throws IOException, JMSException {
    Preconditions.checkState(mapper != null, "need object mapper configured!");

    final TextMessage message = producer.createTextMessage();
    if (message == null) {
        throw new JMSException("Could not create text message, not connected?");
    } else {
        final String dataText = mapper.writeValueAsString(data);
        message.setText(dataText);
        return message;
    }
}

From source file:com.facebook.buck.zip.CustomZipOutputStream.java

public final void putNextEntry(ZipEntry entry) throws IOException {
    Preconditions.checkState(state != State.CLOSED, "Stream has been closed.");
    Preconditions.checkNotNull(entry);//  ww  w.  jav  a2  s  .  c  o  m

    state = State.OPEN;
    closeEntry();
    actuallyPutNextEntry(entry);
    entryOpen = true;
}

From source file:co.cask.cdap.logging.KafkaTestBase.java

private static Properties generateKafkaConfig() throws IOException {
    int port = Networks.getRandomPort();
    Preconditions.checkState(port > 0, "Failed to get random port.");

    Properties prop = new Properties();
    prop.setProperty("broker.id", "1");
    prop.setProperty("port", Integer.toString(port));
    prop.setProperty("num.network.threads", "2");
    prop.setProperty("num.io.threads", "2");
    prop.setProperty("socket.send.buffer.bytes", "1048576");
    prop.setProperty("socket.receive.buffer.bytes", "1048576");
    prop.setProperty("socket.request.max.bytes", "104857600");
    prop.setProperty("log.dir", tmpFolder.newFolder().getAbsolutePath());
    prop.setProperty("num.partitions", "2");
    prop.setProperty("log.flush.interval.messages", "10000");
    prop.setProperty("log.flush.interval.ms", "1000");
    prop.setProperty("log.retention.hours", "1");
    prop.setProperty("log.segment.bytes", "536870912");
    prop.setProperty("log.cleanup.interval.mins", "1");
    prop.setProperty("zookeeper.connect", zkServer.getConnectionStr());
    prop.setProperty("zookeeper.connection.timeout.ms", "1000000");

    return prop;/*from w  w w  .j  a v a  2  s  .co  m*/
}

From source file:com.google.devtools.build.lib.profiler.output.TextPrinter.java

/**
 * Decrease indentation level/*from  w  w  w .j a v  a  2s. c  o m*/
 */
protected void up() {
    Preconditions.checkState(indent.length() >= INDENT.length(),
            "Cannot reduce indentation level, this/a previous call to up() is not matched by down().");
    indent.setLength(indent.length() - INDENT.length());
}

From source file:org.apache.james.jwt.JwtConfiguration.java

public JwtConfiguration(Optional<String> jwtPublicKeyPem) {
    Preconditions.checkState(validPublicKey(jwtPublicKeyPem), "The provided public key is not valid");
    this.jwtPublicKeyPem = jwtPublicKeyPem;
}