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.apache.james.mdn.fields.Text.java

public static Text fromRawText(String rawText) {
    Preconditions.checkNotNull(rawText);
    String trimmedText = rawText.trim();
    Preconditions.checkArgument(!trimmedText.isEmpty(), "Text should not be empty");

    return new Text(replaceLineBreaksByContinuation(trimmedText));
}

From source file:org.opendaylight.mdsal.model.ietf.util.IpClass.java

public IpClass(final String value) {
    this._value = Preconditions.checkNotNull(value);
}

From source file:com.cloudera.oryx.als.computation.ALSJobStepConfig.java

public static ALSJobStepConfig fromArgsArray(String... args) {
    Preconditions.checkNotNull(args);
    Preconditions.checkArgument(args.length >= 5);
    return new ALSJobStepConfig(args[0], Integer.parseInt(args[1]), Integer.parseInt(args[2]),
            Integer.parseInt(args[3]), Boolean.parseBoolean(args[4]));
}

From source file:com.davidbracewell.wordnet.WordNetPOS.java

/**
 * From string./*  w  w w  .j a v  a2 s . c  o m*/
 *
 * @param string the string
 * @return the word net pOS
 */
public static WordNetPOS fromString(String string) {
    Preconditions.checkNotNull(string);
    if (string.equalsIgnoreCase("S")) {
        return ADJECTIVE;
    }
    for (WordNetPOS pos : values()) {
        if (pos.shortForm.equalsIgnoreCase(string) || pos.tag == Character.toLowerCase(string.charAt(0))) {
            return pos;
        }
    }
    return WordNetPOS.valueOf(string);
}

From source file:org.opendaylight.mdsal.model.ietf.util.MacClass.java

public MacClass(final String value) {
    this._value = Preconditions.checkNotNull(value);
}

From source file:org.cloudifysource.cosmo.orchestrator.workflow.RuoteWorkflow.java

public static RuoteWorkflow createFromResource(String resourceName, RuoteRuntime runtime) {
    Preconditions.checkNotNull(resourceName);
    Preconditions.checkNotNull(runtime);
    try {// w  w  w .java  2 s .  co  m
        final URL url = Resources.getResource(resourceName);
        final String workflow = Resources.toString(url, Charsets.UTF_8);
        return new RuoteWorkflow(workflow, runtime);
    } catch (IOException e) {
        throw Throwables.propagate(e);
    }
}

From source file:org.opendaylight.ocpplugin.api.ocp.device.Xid.java

public Xid(final Long value) {
    this.value = Preconditions.checkNotNull(value);
}

From source file:com.gradleware.tooling.testing.Combinations.java

/**
 * Returns all combinations for the given lists.
 *
 * @param lists the lists whose elements to combine, must not be null
 * @return all the combinations, never null
 *//*from   w w  w .j a v a  2  s  . co m*/
public static ImmutableList<List<Object>> getCombinations(List<?>... lists) {
    Preconditions.checkNotNull(lists);

    if (lists.length == 0) {
        return ImmutableList.of();
    }

    ImmutableMap.Builder<Integer, List<?>> listsMappedByDepth = ImmutableMap.builder();
    for (int i = 0; i < lists.length; i++) {
        listsMappedByDepth.put(i, lists[i]);
    }

    return getCombinationsRecursive(listsMappedByDepth.build(), 0, new Object[(lists.length)]);
}

From source file:org.ros.internal.message.definition.MessageDefinitionTupleParser.java

/**
 * Splits the message definition tuple into a {@link List} of message
 * definitions. Split message definitions may be empty (e.g. std_srvs/Empty).
 *
 * @param definition/*from  w ww  .j  a  va2  s .  co  m*/
 *          the message definition tuple
 * @param size
 *          the expected tuple size, or -1 to ignore this requirement
 * @return a {@link List} of the specified size
 */
public static List<String> parse(String definition, int size) {
    Preconditions.checkNotNull(definition);
    List<String> definitions = Lists.newArrayList();
    StringBuilder current = new StringBuilder();
    for (String line : definition.split("\n")) {
        if (line.startsWith(SEPARATOR)) {
            definitions.add(current.toString());
            current = new StringBuilder();
            continue;
        }
        current.append(line);
        current.append("\n");
    }
    if (current.length() > 0) {
        current.deleteCharAt(current.length() - 1);
    }
    definitions.add(current.toString());
    Preconditions.checkState(size == -1 || definitions.size() <= size,
            String.format("Message tuple exceeds expected size: %d > %d", definitions.size(), size));
    while (definitions.size() < size) {
        definitions.add("");
    }
    return definitions;
}

From source file:org.apache.james.mailbox.model.BlobId.java

public static BlobId fromBytes(byte[] bytes) {
    Preconditions.checkNotNull(bytes);
    return new BlobId(Hashing.sha256().hashBytes(bytes).toString());
}