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:ivory.smrf.model.builder.ExpressionGenerator.java

@SuppressWarnings("unchecked")
public static ExpressionGenerator create(String type, Node domNode) throws ConfigurationException {
    Preconditions.checkNotNull(type);
    Preconditions.checkNotNull(domNode);

    try {/*from   w  w  w  . j av a 2 s. c o m*/
        Class<? extends ExpressionGenerator> clz = (Class<? extends ExpressionGenerator>) Class.forName(type);
        ExpressionGenerator f = clz.newInstance();
        f.configure(domNode);

        return f;
    } catch (Exception e) {
        throw new ConfigurationException("Unable to instantiate ExpressionGenerator \"" + type + "\"!", e);
    }
}

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

public static MessageDeclaration of(String type, String definition) {
    Preconditions.checkNotNull(type);
    Preconditions.checkNotNull(definition);
    return new MessageDeclaration(MessageIdentifier.of(type), definition);
}

From source file:com.facebook.buck.cli.LabelSelector.java

static LabelSelector fromString(String raw) {
    Preconditions.checkNotNull(raw);
    Preconditions.checkState(!raw.isEmpty());

    boolean isInclusive = true;
    if (raw.charAt(0) == '!') {
        isInclusive = false;//from w ww .  j  a  va 2 s. c  o  m
        raw = raw.substring(1);
    }

    ImmutableSet.Builder<Label> labelBuilder = new ImmutableSet.Builder<>();
    Iterable<String> labelStrings = splitter.split(raw);
    for (String labelString : labelStrings) {
        BuckConfig.validateLabelName(labelString);
        labelBuilder.add(new Label(labelString));
    }

    return new LabelSelector(isInclusive, labelBuilder.build());
}

From source file:org.projectbuendia.client.utils.LexicographicVersion.java

/** Returns an instance of {@link LexicographicVersion} parsed from the specified string. */
public static LexicographicVersion parse(String raw) {
    Preconditions.checkNotNull(raw);
    Preconditions.checkArgument(!raw.equals(""));

    String[] stringParts = raw.split("\\.");
    int[] parts = new int[stringParts.length];
    for (int i = 0; i < stringParts.length; i++) {
        try {// ww  w .j  a  va2s  .c o m
            parts[i] = Integer.parseInt(stringParts[i]);
        } catch (NumberFormatException e) {
            throw new IllegalArgumentException("'" + raw + "' is not a valid version string.", e);
        }
    }

    return new LexicographicVersion(raw, parts);
}

From source file:com.spotify.helios.client.ClientCertificatePath.java

private static Path checkExists(Path path) {
    Preconditions.checkNotNull(path);
    Preconditions.checkArgument(path.toFile().canRead(), path + " does not exist or cannot be read");
    return path;// w  ww .  j a  v  a2s . c  om
}

From source file:se.curity.examples.oauth.AuthenticatedUser.java

public static AuthenticatedUser fromMap(Map<String, Object> tokenData) {
    Preconditions.checkNotNull(tokenData.get("sub"));
    String sub = (String) tokenData.get("sub");
    @Nullable/*from   ww  w  .  j av a 2s  . co m*/
    String scope = (String) tokenData.get("scope");

    return new AuthenticatedUser(sub, scope);
}

From source file:org.sosy_lab.cpachecker.cpa.coverage.CoverageState.java

public static CoverageState getSingleton() {
    Preconditions.checkNotNull(instance);
    return instance;
}

From source file:com.google.collide.shared.grok.PositionTranslator.java

private static List<Integer> calculateNewlineOffsets(String fileContents) {
    Preconditions.checkNotNull(fileContents);
    List<Integer> newlineOffsets = Lists.newArrayList();
    for (int i = -1; (i = fileContents.indexOf('\n', i + 1)) >= 0;) {
        newlineOffsets.add(i);//w ww.j  av  a 2s  . c om
    }

    return newlineOffsets;
}

From source file:com.google.template.soy.conformance.ConformanceInput.java

public static ConformanceInput create(SoyFileSetNode soyTree,
        ImmutableList<SlicedRawTextNode> slicedRawTextNodes) {
    return new AutoValue_ConformanceInput(Preconditions.checkNotNull(soyTree),
            Preconditions.checkNotNull(slicedRawTextNodes));
}

From source file:com.facebook.buck.rules.keys.config.impl.BuckBinaryHashProvider.java

/**
 * Returns Buck binary hash/*from  w  ww . j a va  2 s.com*/
 *
 * <p>The Buck binary hash key is generated during build time and reflects changes in Buck code
 * that can affect the content of build artifacts.
 */
public static String getBuckBinaryHash() {
    if (buckBinaryHash == null) {
        buckBinaryHash = Preconditions.checkNotNull(System.getProperty("buck.binary_hash"));
    }
    return buckBinaryHash;
}