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.gradleware.tooling.toolingmodel.repository.internal.DefaultOmniGradleBuild.java

public static DefaultOmniGradleBuild from(GradleProject gradleRootProject, boolean enforceAllTasksPublic) {
    Preconditions.checkState(gradleRootProject.getParent() == null,
            "Provided Gradle project is not the root project.");
    return new DefaultOmniGradleBuild(DefaultOmniGradleProject.from(gradleRootProject, enforceAllTasksPublic));
}

From source file:codecrafter47.bungeetablistplus.api.bukkit.BungeeTabListPlusBukkitAPI.java

/**
 * Registers a custom variable/* w  w w. jav a 2s. c o m*/
 * <p>
 * You cannot use this to replace existing variables. If registering a variable which already
 * exists there may be an exception thrown but there is no guarantee that an exception
 * is thrown in that case.
 *
 * @param plugin   your plugin
 * @param variable your variable
 */
public static void registerVariable(Plugin plugin, Variable variable) {
    Preconditions.checkState(instance != null, "instance is null, is the plugin enabled?");
    instance.registerVariable0(plugin, variable);
}

From source file:edu.umn.msi.tropix.persistence.service.impl.Utils.java

static void initObject(final TropixObject object) {
    //Preconditions.checkState(object.getId() == null, "Object with nonnull id sent to initAndSaveObject id is " + object.getId());
    Preconditions.checkState(object.getCreationTime() == null,
            "Object with creation time already sent to initAndSaveObject id is " + object.getId());
    setCreationTime(object);// ww w.  j a va2 s.  c om
    object.setPermissionParents(new HashSet<TropixObject>());
    object.setPermissionChildren(new HashSet<TropixObject>());
    object.setParentVirtualFolders(new HashSet<VirtualFolder>());
}

From source file:org.apache.james.jmap.model.ProtocolRequest.java

public static ProtocolRequest deserialize(JsonNode[] json) {
    Preconditions.checkState(json.length == 3, "should have three elements");
    Preconditions.checkState(json[0].isTextual(), "first element should be a String");
    Preconditions.checkState(json[1].isObject(), "second element should be a Json");
    Preconditions.checkState(json[2].isTextual(), "third element should be a String");
    return new ProtocolRequest(Method.Request.name(json[0].textValue()), (ObjectNode) json[1],
            ClientId.of(json[2].textValue()));
}

From source file:me.lucko.luckperms.common.api.internal.Utils.java

public static void checkUser(User user) {
    Preconditions.checkState(user instanceof UserLink,
            "User instance cannot be handled by this implementation.");
}

From source file:com.github.jcustenborder.kafka.connect.utils.config.TaskConfigs.java

/**
 * Method is used to generate a list of taskConfigs based on the supplied settings.
 *
 * @param settings/*from  w  w  w. j  a  v  a2 s . c  o m*/
 * @param taskCount
 * @return
 */
public static List<Map<String, String>> multiple(Map<String, String> settings, final int taskCount) {
    Preconditions.checkNotNull(settings, "settings cannot be null.");
    Preconditions.checkState(taskCount > 0, "taskCount must be greater than 0.");
    final List<Map<String, String>> result = new ArrayList<>(taskCount);
    for (int i = 0; i < taskCount; i++) {
        result.add(settings);
    }
    return ImmutableList.copyOf(result);
}

From source file:org.opendaylight.netconf.sal.streams.websockets.WebSocketServer.java

/**
 * Create singleton instance of {@link WebSocketServer}
 *
 * @param port TCP port used for this server
 * @return instance of {@link WebSocketServer}
 *//*  www.jav  a 2  s. co  m*/
public static WebSocketServer createInstance(final int port) {
    Preconditions.checkState(instance == null, "createInstance() has already been called");
    Preconditions.checkArgument(port >= 1024, "Privileged port (below 1024) is not allowed");

    instance = new WebSocketServer(port);
    return instance;
}

From source file:com.tellapart.taba.TabaApiFactory.java

public static synchronized void initialize(TabaClientEngine clientEngine) {
    Preconditions.checkState(engine == null, "Already initialized.");
    engine = clientEngine;/*w w  w .  j a  va2s  . c o  m*/
    api = new TabaApi(engine);
}

From source file:com.dmdirc.addons.ui_swing.SwingPreconditions.java

/**
 * Checks that the method is called on the Swing EDT.
 *
 * @throws IllegalStateException if the method is called from another thread.
 *//*  w  w  w.j a  va  2s  .  c o  m*/
public static void checkOnEDT() {
    Preconditions.checkState(SwingUtilities.isEventDispatchThread(),
            "Must be called on the event despatch thread");
}

From source file:pocman.game.Tiles.java

public static Tile fromCharacter(final Character character) {
    Preconditions.checkArgument(character != null);
    final Tile tile = TILE_BY_CHARACTER_MAP.get(character);
    Preconditions.checkState(tile != null, "Unknown tile from character: " + character);
    return tile;//from   w w w  . j av a2  s .  co m
}