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

Introduction

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

Prototype

public static <T> T checkNotNull(T reference)

Source Link

Document

Ensures that an object reference passed as a parameter to the calling method is not null.

Usage

From source file:org.opendaylight.bgpcep.programming.topology.TopologyProgrammingUtil.java

@SuppressWarnings("unchecked")
public static InstanceIdentifier<Topology> topologyForInput(final TopologyInstructionInput input) {
    Preconditions.checkNotNull(input.getNetworkTopologyRef());
    return (InstanceIdentifier<Topology>) input.getNetworkTopologyRef().getValue();
}

From source file:accumulo.input.AccumuloCsvInputFactory.java

public static AccumuloCsvInput getInput(File f) {
    Preconditions.checkNotNull(f);

    if (f.isDirectory()) {
        return new AccumuloCsvDirectoryInput(f);
    } else if (f.isFile()) {
        return new AccumuloCsvFileInput(f);
    } else {//  ww w .j a  va2 s.  com
        throw new UnsupportedOperationException("Input was not a file nor directory");
    }
}

From source file:org.ros.message.MessageIdentifier.java

public static MessageIdentifier of(String pkg, String name) {
    Preconditions.checkNotNull(pkg);
    Preconditions.checkNotNull(name);//from   w w  w.jav a 2  s.c  o m
    return new MessageIdentifier(pkg, name);
}

From source file:org.trancecode.base.TcPreconditions.java

public static void checkNotEmpty(final String string) {
    Preconditions.checkArgument(!Preconditions.checkNotNull(string).isEmpty());
}

From source file:io.appform.nautilus.funnel.utils.RegexUtils.java

public static String convertToRegex(final List<String> stages) {
    Preconditions.checkNotNull(stages);
    Preconditions.checkArgument(!stages.isEmpty());
    String regex = "";
    int i = 0;/* w  w w.  j a v a2s. com*/
    for (String stage : stages) {
        if (0 == i) {
            regex = String.format("(%s.*)", PathUtils.transformName(stage));
        } else {
            regex = String.format("%s|(\\%d%s.*)", regex, i, PathUtils.transformName(stage));
        }
        i++;
    }
    return String.format(".*(%s)", regex);
}

From source file:com.amitinside.java8.practice.StaticMethodExample.java

public static Optional<IParent> isNull(final IParent parent) {
    return Optional.of(Preconditions.checkNotNull(parent));
}

From source file:com.atoito.please.core.util.Store.java

public static File toFile(Object configured) {
    Object value = Preconditions.checkNotNull(configured);
    return new File(simplifyPath(value.toString()));
}

From source file:org.eclipse.xtext.serializer.impl.FeatureFinderUtil.java

/**
 * @since 2.0//from w  w  w .j  a  v  a 2s .  com
 */
public static EStructuralFeature getFeature(AbstractElement grammarElement, EClass owner) {
    Preconditions.checkNotNull(owner);
    if (grammarElement == null)
        return null;
    String featureName = null;
    if (grammarElement instanceof Action)
        featureName = ((Action) grammarElement).getFeature();
    else {
        Assignment ass = GrammarUtil.containingAssignment(grammarElement);
        if (ass != null)
            featureName = ass.getFeature();
    }
    if (featureName != null)
        return owner.getEStructuralFeature(featureName);
    return null;
}

From source file:org.haiku.haikudepotserver.support.cayenne.ExpressionHelper.java

/**
 * <p>This method will produce an expression that can be used in a Cayenne query.</p>
 *//*from  w w  w  . j a  v a 2 s  .  c om*/

public static Expression toExpression(VersionCoordinates coordinates, String prefix) {
    Preconditions.checkNotNull(coordinates);
    Expression majorE = ExpressionFactory.matchExp(prefixKey(prefix, PkgVersion.MAJOR.getName()),
            coordinates.getMajor());
    Expression minorE = ExpressionFactory.matchExp(prefixKey(prefix, PkgVersion.MINOR.getName()),
            coordinates.getMinor());
    Expression microE = ExpressionFactory.matchExp(prefixKey(prefix, PkgVersion.MICRO.getName()),
            coordinates.getMicro());
    Expression preReleaseE = ExpressionFactory.matchExp(prefixKey(prefix, PkgVersion.PRE_RELEASE.getName()),
            coordinates.getPreRelease());
    Expression revisionE = ExpressionFactory.matchExp(prefixKey(prefix, PkgVersion.REVISION.getName()),
            coordinates.getRevision());
    return andAll(ImmutableList.of(majorE, minorE, microE, preReleaseE, revisionE));
}

From source file:io.pravega.controller.store.stream.StreamProperty.java

public static <T> StreamProperty<T> update(final T update) {
    Preconditions.checkNotNull(update);

    return new StreamProperty<>(update, true);
}