Example usage for com.google.common.base Optional of

Introduction

In this page you can find the example usage for com.google.common.base Optional of.

Prototype

public static <T> Optional<T> of(T reference)

Source Link

Document

Returns an Optional instance containing the given non-null reference.

Usage

From source file:edu.ksu.cis.santos.mdcf.dml.ast.MultiplicityAnnotation.java

public MultiplicityAnnotation(final int lo, final int hi, final Optional<String> typeName) {
    this.lo = lo;
    this.hi = hi;
    this.typeName = typeName.isPresent() ? Optional.of(typeName.get().intern()) : typeName;
}

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

/**
 * Returns the Gradle version referenced by the given distribution location.
 *
 * @param uri the distribution location/*from   www .j a v  a2s . c o  m*/
 * @return the Gradle version of the distribution
 */
public static Optional<String> getVersion(URI uri) {
    Preconditions.checkNotNull(uri);

    Matcher m = PATTERN.matcher(uri.toString());
    if (m.find()) {
        return Optional.of(m.group(1));
    } else {
        return Optional.absent();
    }
}

From source file:com.rentmycourt.api.core.helpers.SimpleAuthenticator.java

/**
 *
 * @param credentials// w ww  .j a v a  2  s  . com
 * @return
 * @throws io.dropwizard.auth.AuthenticationException.<error>
 */
@Override
public Optional<User> authenticate(BasicCredentials credentials) throws AuthenticationException {
    if ("secret".equals(credentials.getPassword())) {
        return Optional.of(new User(credentials.getUsername()));
    }
    return Optional.absent();
}

From source file:org.sonar.server.permission.ws.WsProjectRef.java

public static Optional<WsProjectRef> newOptionalWsProjectRef(@Nullable String uuid, @Nullable String key) {
    if (uuid == null && key == null) {
        return Optional.absent();
    }//from   w w  w . ja va  2  s  . c om

    return Optional.of(new WsProjectRef(uuid, key));
}

From source file:org.eclipse.mylyn.internal.wikitext.commonmark.inlines.PotentialBracketSpan.java

@Override
public Optional<? extends Inline> createInline(Cursor cursor) {
    char c = cursor.getChar();
    if (c == '!' && cursor.hasNext() && cursor.getNext() == '[') {
        return Optional.of(new PotentialBracketDelimiter(cursor.getLineAtOffset(), cursor.getOffset(), 2,
                cursor.getTextAtOffset(2)));
    }/* ww  w  .j a  v  a2  s .c om*/
    if (c == '[') {
        return Optional.of(new PotentialBracketDelimiter(cursor.getLineAtOffset(), cursor.getOffset(), 1,
                cursor.getTextAtOffset(1)));
    }
    if (c == ']') {
        return Optional.of(new PotentialBracketEndDelimiter(cursor.getLineAtOffset(), cursor.getOffset()));
    }
    return Optional.absent();
}

From source file:si.arnes.dropbookmarks.auth.HelloAuthenticator.java

@Override
public Optional<User> authenticate(BasicCredentials credentials) throws AuthenticationException {
    if (password.equals(credentials.getPassword())) {
        return Optional.of(new User(0, credentials.getUsername(), credentials.getPassword()));
    }//from w w w  .  ja v a 2  s. c om
    return Optional.absent();
}

From source file:org.automagic.deps.doctor.TransitiveDepsGroup.java

public void add(TransitiveDependency dependency) {
    if (dependency.getHopCount() == 1) {
        topLevelDependency = Optional.of(dependency);
    }//from w  w w.j  av a2  s . c om
    dependencies.add(dependency);
}

From source file:cc.ilo.cc.ilo.pipeline.pipes.AbstractFilterPipe.java

@Override
public Optional<T> process(T input) throws Exception {
    if (accept(input)) {
        return Optional.of(input);
    } else {/* w w  w.  j  a  va 2s.c om*/
        return Optional.absent();
    }

}

From source file:org.fusesource.fabric.service.jclouds.functions.ToAdminAccess.java

public static Optional<AdminAccess> apply(CreateJCloudsContainerOptions input) {
    AdminAccess.Builder builder = AdminAccess.builder();
    //There are images that have issues with copying of public keys, creation of admin user accounts,etc
    //To allow//from  ww w  .j av a 2s.co m
    if (input.isAdminAccess()) {
        if (!Strings.isNullOrEmpty(input.getPublicKeyFile())) {
            File publicKey = new File(input.getPublicKeyFile());
            if (publicKey.exists()) {
                builder.adminPublicKey(publicKey);
            } else {
                LOGGER.warn("Public key has been specified file: {} files cannot be found. Ignoring.",
                        publicKey.getAbsolutePath());
                return Optional.of(AdminAccess.standard());
            }
        }

        if (!Strings.isNullOrEmpty(input.getUser())) {
            builder.adminUsername(input.getUser());
        }

        return Optional.of(builder.build());
    }
    return Optional.absent();
}

From source file:com.github.kevints.mesos.scheduler.server.LibprocessServletUtils.java

static Optional<String> parseMessageType(HttpServletRequest req) {
    String pathInfo = req.getPathInfo();
    if (pathInfo == null) {
        return Optional.absent();
    }/*from  w  w  w .  j  av a  2  s  . c om*/

    return Optional.of(Paths.get(pathInfo).getFileName().toString());
}