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.proofpoint.galaxy.agent.MockDeploymentManager.java

@Override
public Deployment install(Installation installation) {
    Preconditions.checkNotNull(installation, "installation is null");
    Preconditions.checkState(deployment == null, "slot has an active deployment");

    deployment = new Deployment(UUID.randomUUID(), location, new File("installation"), new File("data"),
            installation.getAssignment(), installation.getResources());
    return deployment;
}

From source file:com.spotify.apollo.test.response.SequenceResponseSource.java

@Override
public ResponseWithDelay create(Request request) {
    Preconditions.checkState(responseWithDelayIterator.hasNext(), "No more responses specified!");
    return responseWithDelayIterator.next();
}

From source file:org.apache.beam.sdk.extensions.euphoria.core.translate.OperatorTransform.java

public static <InputT, OutputT, OperatorT extends Operator<OutputT>> PCollection<OutputT> apply(
        OperatorT operator, PCollectionList<InputT> inputs) {

    final Optional<OperatorTranslator<InputT, OutputT, OperatorT>> maybeTranslator = TranslatorProvider
            .of(inputs.getPipeline()).findTranslator(operator);

    if (maybeTranslator.isPresent()) {
        final PCollection<OutputT> output = inputs.apply(
                operator.getName().orElseGet(() -> operator.getClass().getName()),
                new OperatorTransform<>(operator, maybeTranslator.orElse(null)));
        Preconditions.checkState(output.getTypeDescriptor() != null,
                "Translator should always return a typed PCollection.");
        return output;
    }//from  w ww.  j a  v  a2s.c  o m

    throw new IllegalStateException("Unable to find translator for basic operator [" + operator.getClass()
            + "] with name [" + operator.getName().orElse(null) + ".");
}

From source file:org.kitesdk.examples.spark.CorrelateEvents.java

@Override
public int run(List<String> args) throws Exception {

    String inputUri = uri;//  w w w  .j a va2  s  .  com
    String outputUri = "dataset:hive?dataset=correlated_events";

    if (args.size() == 1) {
        outputUri = args.get(0);
    }

    Preconditions.checkState(Datasets.exists(inputUri), "input dataset doesn't exists");

    if (!Datasets.exists(outputUri)) {
        Datasets.create(outputUri,
                new DatasetDescriptor.Builder().format("avro").schema(CorrelatedEvents.class).build());
    }
    CorrelateEventsTask task = new CorrelateEventsTask(inputUri, outputUri);
    task.run();

    return 0;
}

From source file:org.opendaylight.controller.cluster.datastore.ReadWriteShardDataTreeTransaction.java

ShardDataTreeCohort ready() {
    Preconditions.checkState(close(), "Transaction is already closed");

    return parent.finishTransaction(this);
}

From source file:codecrafter47.bungeetablistplus.api.sponge.BungeeTabListPlusSpongeAPI.java

/**
 * Unregisters all variables registered by the give plugin
 *
 * @param plugin the plugin//from w  ww.  ja va  2  s  .co m
 */
public static void unregisterVariables(Object plugin) {
    Preconditions.checkState(instance != null, "instance is null, is the plugin enabled?");
    instance.unregisterVariables0(plugin);
}

From source file:org.opendaylight.protocol.bgp.labeled.unicast.OriginatorSrgbTlvParser.java

private static List<SrgbValue> parseSrgbs(final ByteBuf buffer) {
    Preconditions.checkState(buffer.readableBytes() % SRGB_LENGTH == 0,
            "Number of SRGBs doesn't fit available bytes.");
    final List<SrgbValue> ret = new ArrayList<SrgbValue>();
    while (buffer.isReadable()) {
        ret.add(new SrgbValueBuilder().setBase(new Srgb((long) buffer.readUnsignedMedium()))
                .setRange(new Srgb((long) buffer.readUnsignedMedium())).build());
    }/*from   ww  w .  ja va  2  s.  c  om*/
    return ret;
}

From source file:com.google.wave.splash.auth.oauth.OAuthSessionContext.java

@Override
public String getSessionKey() {
    Preconditions.checkState(isAuthenticated(), "not authenticated");
    // TODO: Use an id provided by the profile server instead.
    return String.valueOf(accessor.accessToken.hashCode());
}

From source file:org.n52.wps.algorithm.descriptor.InputDescriptor.java

protected InputDescriptor(Builder<? extends Builder<?, T>, T> builder) {
    super(builder);
    this.minOccurs = builder.minOccurs;
    this.maxOccurs = builder.maxOccurs;
    Preconditions.checkState(maxOccurs.longValue() >= minOccurs.longValue(), "maxOccurs must be >= minOccurs");
}

From source file:net.tenorite.protocol.ClassicStyleAddMessage.java

@Value.Check
protected void check() {
    int lines = getLines();
    Preconditions.checkState((lines == 1 || lines == 2 || lines == 4),
            "invalid value " + lines + " for 'lines', allowed values are 1, 2 or 4");
}