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:org.eclipse.viatra.transformation.evm.api.adapter.AdaptableConflictResolver.java

public AdaptableConflictResolver(ConflictResolver delegatedConflictResolver, AdaptableEVM container) {
    this.delegatedConflictResolver = delegatedConflictResolver;
    Preconditions.checkState(this.delegatedConflictResolver != null,
            "Delegated Conflict resolver must be set.");
    this.container = container;
}

From source file:com.google.javascript.jscomp.fuzzing.ExistingIdentifierFuzzer.java

@Override
protected Node generate(int budget, Set<Type> types) {
    Preconditions.checkState(isEnough(1), "No symbol defined.");
    int flags = 0;
    if (excludeExterns) {
        flags = ScopeManager.EXCLUDE_EXTERNS;
    }//from  w w w .ja va 2 s  . co  m
    return Node.newString(Token.NAME, context.scopeManager.getRandomSymbol(type, flags).name);
}

From source file:com.google.jstestdriver.requesthandlers.RequestScope.java

/**
 * Enter the {@link RequestScope}./*w  ww . j a  v a 2s .c  om*/
 */
public void enter() {
    Preconditions.checkState(values.get() == null, "Scope already entered.");
    values.set(Maps.<Key<?>, Object>newHashMap());
}

From source file:com.google.devtools.build.android.desugar.CloseResourceMethodScanner.java

@Override
public void visit(int version, int access, String name, String signature, String superName,
        String[] interfaces) {//from   ww  w  .jav  a  2s  . c om
    Preconditions.checkState(internalName == null, "This scanner has been used.");
    this.internalName = name;
    this.classFileVersion = version;
    super.visit(version, access, name, signature, superName, interfaces);
}

From source file:to.lean.tools.gmail.importer.fixers.CorruptEmailFixer.java

private boolean hasValidFrom(JavaxMailMessage message) {
    String[] fromHeaders = message.getHeader("From");
    Preconditions.checkState(fromHeaders.length == 1,
            "Expected exactly 1 From header, got: " + Arrays.toString(fromHeaders));
    String rawAddress = fromHeaders[0].replaceAll("\\s+", " ");
    try {//from   ww w .  j  a  v  a  2  s  .c o m
        InternetAddress[] address = InternetAddress.parseHeader(rawAddress, true);
        Preconditions.checkState(address.length == 1,
                "Expected exactly 1 From address, got: " + Arrays.toString(address));
        System.err.format("Valid? %s == %s\n", address[0].toString(), rawAddress);
        return address[0].toString().equals(rawAddress);
    } catch (AddressException e) {
        System.err.format("Not valid from because: %s", e.getMessage());
        return false;
    }
}

From source file:org.locationtech.geogig.api.plumbing.DescribeFeatureType.java

/**
 * Retrieves the set of property descriptors for the given feature type.
 * /*  ww w  . ja  va2 s.  com*/
 * @return a sorted set of all the property descriptors of the feature type.
 */
@Override
protected ImmutableSet<PropertyDescriptor> _call() {
    Preconditions.checkState(featureType != null, "FeatureType has not been set.");

    FeatureType type = featureType.type();

    ImmutableSet.Builder<PropertyDescriptor> propertySetBuilder = new ImmutableSet.Builder<PropertyDescriptor>();

    propertySetBuilder.addAll(type.getDescriptors());

    return propertySetBuilder.build();
}

From source file:com.mapr.synth.samplers.MapSampler.java

@Override
public JsonNode sample() {
    Preconditions.checkState(base != null, "Need to specify definition");
    return base.sample();
}

From source file:org.sonar.api.batch.sensor.measure.internal.DefaultMeasureBuilder.java

@Override
public DefaultMeasureBuilder<G> onFile(InputFile inputFile) {
    Preconditions.checkState(!this.onProject, "onProject already called");
    Preconditions.checkState(this.file == null, "onFile already called");
    Preconditions.checkNotNull(inputFile, "InputFile should be non null");
    this.file = inputFile;
    return this;
}

From source file:org.apache.usergrid.chop.api.store.amazon.InstanceValues.java

public InstanceValues(Instance instance, String sshKeyFile) {
    Preconditions.checkNotNull(sshKeyFile, "The 'sshKeyFile' parameter cannot be null.");
    Preconditions.checkNotNull(instance, "The 'instance parameter cannot be null.");
    Preconditions.checkState(
            instance.getPublicIpAddress() != null && (!instance.getPublicIpAddress().isEmpty()),
            "Public IP address field of the 'instance' parameter cannot be empty");

    this.sshKeyFile = sshKeyFile;
    this.instance = instance;
}

From source file:com.torodb.core.cursors.IteratorCursor.java

@Override
public E next() {
    Preconditions.checkState(!closed, "The cursor is closed");
    return iterator.next();
}