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)

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:org.opendaylight.controller.cluster.raft.protobuff.client.messages.CompositeModificationPayload.java

@Override
public Map<GeneratedMessage.GeneratedExtension, PersistentMessages.CompositeModification> encode() {
    Preconditions.checkState(modification != null);
    Map<GeneratedMessage.GeneratedExtension, PersistentMessages.CompositeModification> map = new HashMap<>();
    map.put(org.opendaylight.controller.protobuff.messages.shard.CompositeModificationPayload.modification,
            this.modification);
    return map;//  www . jav a 2s.co  m
}

From source file:org.geogit.storage.memory.Graph.java

/**
 * Creates a new node in the graph./* w  w w .j av a  2  s. co  m*/
 * 
 * @param id The id of the new node. 
 */
public Node newNode(ObjectId id) {
    Preconditions.checkNotNull(id);
    Preconditions.checkState(nodes.get(id) == null);
    Node n = new Node(id);
    nodes.put(id, n);
    return n;
}

From source file:fathom.rest.controller.extractors.AuthExtractor.java

@Override
public void setObjectType(Class<?> objectType) {
    Preconditions.checkState(Account.class.isAssignableFrom(objectType));
}

From source file:org.ros.tutorials.poark.Basic.java

@Override
public void main(Node node) throws Exception {
    Preconditions.checkState(this.node == null);
    this.node = node;
    try {/*from  w  w w  .  java2s. com*/
        final Log log = node.getLog();
        // Attach the client to the node and add some pin listeners.
        poarkClient = new PoarkClient(Poark.BoardLayout.MegaLayout, node);
        poarkClient.addPinChangeListener(kButton1, new PinChangeListener() {
            @Override
            public void onPinStateChange(byte pin, int new_value) {
                log.info("Pushed the button : \"" + pin + " - " + new_value + "\"");
            }
        });
        poarkClient.setPinMode(kLedPin, Poark.OUT, Poark.HIGH);
        Thread.sleep(1000);
        // Setup the Poark I/O.
        poarkClient.setPinsMode(new byte[] { kLedPin, kButton1 }, new byte[] { Poark.OUT, Poark.IN },
                new byte[] { Poark.LOW, Poark.HIGH });
        // Start blinking the light.
        byte light = Poark.LOW;
        while (true) {
            light = (byte) (Poark.HIGH - light);
            poarkClient.setPinState(kLedPin, light);
            Thread.sleep(1000);
        }
    } catch (Exception e) {
        if (node != null) {
            node.getLog().fatal(e);
        } else {
            e.printStackTrace();
        }
    }
}

From source file:com.palantir.atlasdb.keyvalue.partition.util.CycleMap.java

public K previousKey(K key) {
    Preconditions.checkState(size() > 0);
    K previous = lowerKey(key);/*  ww  w .  ja va2  s .co m*/
    if (previous == null) {
        previous = lastKey();
    }
    return previous;
}

From source file:org.apache.tez.dag.app.launcher.ContainerOp.java

public ContainerLaunchRequest getLaunchRequest() {
    Preconditions.checkState(opType == OPType.LAUNCH_REQUEST);
    return (ContainerLaunchRequest) command;
}

From source file:appeng.bootstrap.components.BuiltInModelComponent.java

public void addModel(String path, IModel model) {
    Preconditions.checkState(!hasInitialized);
    builtInModels.put(path, model);
}

From source file:com.google.devtools.build.skyframe.TrackingInvalidationReceiver.java

@Override
public void invalidated(SkyValue value, InvalidationState state) {
    switch (state) {
    case DELETED:
        dirty.remove(value);/*w  w  w. ja  va 2 s  . co m*/
        deleted.add(value);
        break;
    case DIRTY:
        dirty.add(value);
        Preconditions.checkState(!deleted.contains(value));
        break;
    default:
        throw new IllegalStateException();
    }
}

From source file:com.cloudera.impala.analysis.AlterTableAddPartitionStmt.java

public AlterTableAddPartitionStmt(TableName tableName, PartitionSpec partitionSpec, HdfsUri location,
        boolean ifNotExists, HdfsCachingOp cacheOp) {
    super(tableName);
    Preconditions.checkState(partitionSpec != null);
    location_ = location;/*from   w  ww. j a  v  a2 s . c o m*/
    ifNotExists_ = ifNotExists;
    partitionSpec_ = partitionSpec;
    partitionSpec_.setTableName(tableName);
    cacheOp_ = cacheOp;
}

From source file:com.mapr.workGroup.GroupThread.java

protected void setState(Logger log, ThreadState state) {
    Preconditions.checkState(ThreadState.check(currentState, state));
    log.info("Transitioning from {} to {}", state);
    currentState = state;/*from   www  .j  av  a 2 s  . c o  m*/
}