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:org.geogit.api.plumbing.CommitFromDateOp.java

@Override
public Optional<RevCommit> call() {
    Preconditions.checkState(date != null);
    long time = date.getTime();
    Iterator<RevCommit> iter = command(LogOp.class).setFirstParentOnly(true).call();
    while (iter.hasNext()) {
        RevCommit commit = iter.next();/*  w  ww.jav a2s  .  c  o m*/
        if (commit.getCommitter().getTimestamp() < time) {
            return Optional.of(commit);
        }
    }
    return Optional.absent();
}

From source file:org.opendaylight.controller.netconf.confignetconfconnector.mapping.attributes.mapping.EnumAttributeMappingStrategy.java

@Override
public Optional<String> mapAttribute(Object value) {
    if (value == null) {
        return Optional.absent();
    }//w  w w. j av  a2 s . c om

    String expectedClass = getOpenType().getTypeName();
    return Optional.of(enumResolver.toYang(expectedClass, value.toString()));
}

From source file:com.palantir.giraffe.ssh.PublicKeySshCredential.java

public static PublicKeySshCredential fromFile(String username, Path privateKeyFile) throws IOException {
    byte[] privateKey = Files.readAllBytes(privateKeyFile);
    return new PublicKeySshCredential(username, privateKey, Optional.of(privateKeyFile));
}

From source file:io.dockstore.common.Utilities.java

public static ImmutablePair<String, String> executeCommand(String command) {
    return executeCommand(command, true, Optional.of(ByteStreams.nullOutputStream()),
            Optional.of(ByteStreams.nullOutputStream()));
}

From source file:com.addthis.hydra.job.spawn.jersey.DefaultAuthenticator.java

@Override
public Optional<User> authenticate(BasicCredentials credentials) throws AuthenticationException {
    if (!StringUtils.isEmpty(credentials.getUsername())) {
        return Optional.of(new User(credentials.getUsername(), credentials.getUsername(), true)); //default admin
    }//from w  w w.  jav a2  s  . com
    return Optional.absent();
}

From source file:com.google.template.soy.shared.RangeArgs.java

/**
 * Returns a optional {@link RangeArgs} object if the for loop expression is a {@code range(...)}
 * expression./*from  w  w w  .ja va  2  s. c  o  m*/
 */
public static final Optional<RangeArgs> createFromNode(ForNode node) {
    if (node.getExpr().getRoot() instanceof FunctionNode) {
        FunctionNode fn = (FunctionNode) node.getExpr().getRoot();
        if (fn.getSoyFunction() instanceof RangeFunction) {
            return Optional.of(create(fn.getChildren()));
        }
    }
    return Optional.absent();
}

From source file:si.klepra.dropwizardbookmarks.auth.HelloAuthenticator.java

@Override
public Optional<User> authenticate(BasicCredentials c) throws AuthenticationException {

    //call db or auth service here!
    if (configuration.getPassword().equals(c.getPassword())) {
        return Optional.of(new User());
    }//from w  ww.  j  a va2s .  c o  m
    return Optional.absent();
}

From source file:com.google.gerrit.server.change.ChangeTriplet.java

/**
 * Parse a triplet out of a string./*from   w w w  .j  ava 2s .co  m*/
 *
 * @param triplet string of the form "project~branch~id".
 * @return the triplet if the input string has the proper format, or absent if
 *     not.
 */
public static Optional<ChangeTriplet> parse(String triplet) {
    int t2 = triplet.lastIndexOf('~');
    int t1 = triplet.lastIndexOf('~', t2 - 1);
    if (t1 < 0 || t2 < 0) {
        return Optional.absent();
    }

    String project = Url.decode(triplet.substring(0, t1));
    String branch = Url.decode(triplet.substring(t1 + 1, t2));
    String changeId = Url.decode(triplet.substring(t2 + 1));

    ChangeTriplet result = new AutoValue_ChangeTriplet(new Branch.NameKey(new Project.NameKey(project), branch),
            new Change.Key(changeId));
    return Optional.of(result);
}

From source file:com.github.rinde.rinsim.core.model.comm.Message.java

static Message createDirect(CommUser from, CommUser to, MessageContents m, Predicate<CommUser> p) {
    return new AutoValue_Message(from, Optional.of(to), m, p);
}

From source file:im.dadoo.teak.biz.bo.impl.DefaultUserBO.java

@Override
public Optional<UserPO> insert(String name, String password) {
    UserPO userPO = this.userDAO.findByName(name);
    //????//from   w  ww  .  j  a v  a  2 s . com
    if (userPO == null) {
        userPO = new UserPO();
        userPO.setName(name);
        userPO.setPassword(password);
        return Optional.of(this.userDAO.insert(userPO));
    } else {
        return Optional.absent();
    }
}