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:com.dangdang.ddframe.rdb.sharding.parser.result.merger.OrderByColumn.java

public OrderByColumn(final String name, final OrderByType orderByType) {
    super(Optional.<String>absent(), Optional.of(name), Optional.<String>absent(), orderByType);
    index = Optional.absent();/* w ww  .  j  a  va2 s .  co m*/
}

From source file:dagger.internal.codegen.KeyFormatter.java

@Override
public String format(Key request) {
    if (request.bindingMethod().isPresent()) {
        // If there's a binding method, its signature is enough.
        SourceElement bindingMethod = request.bindingMethod().get();
        return methodSignatureFormatter.format(MoreElements.asExecutable(bindingMethod.element()),
                Optional.of(MoreTypes.asDeclared(bindingMethod.contributedBy().get().asType())));
    }/*from   w ww .ja v a2 s.  com*/
    StringBuilder builder = new StringBuilder();
    if (request.qualifier().isPresent()) {
        builder.append(request.qualifier().get());
        builder.append(' ');
    }
    builder.append(request.type());
    return builder.toString();
}

From source file:org.geogit.osm.internal.log.ReadOSMMapping.java

@Override
public Optional<Mapping> call() {
    Preconditions.checkNotNull(entry);//from   ww w  .  ja  va 2  s .c  o m
    final File osmMapFolder = command(ResolveOSMMappingLogFolder.class).call();
    File file = new File(osmMapFolder, entry.getPostMappingId().toString());
    if (!file.exists()) {
        return Optional.absent();
    }
    try {
        List<String> lines = Files.readLines(file, Charsets.UTF_8);
        String s = Joiner.on("\n").join(lines);
        Mapping mapping = Mapping.fromString(s);
        return Optional.of(mapping);
    } catch (IOException e) {
        throw Throwables.propagate(e);
    }
}

From source file:com.urswolfer.intellij.plugin.gerrit.ui.filter.StatusFilter.java

public StatusFilter() {
    value = Optional.of(statuses.get(1));
}

From source file:appeng.items.tools.quartz.ToolQuartzAxe.java

public ToolQuartzAxe(final AEFeature type) {
    super(ToolMaterial.IRON);
    this.feature = new ItemFeatureHandler(EnumSet.of(this.type = type, AEFeature.QuartzAxe), this, this,
            Optional.of(type.name()));
}

From source file:org.robotninjas.util.callable.DecoratedCallableFunction.java

void setRetryer(Retryer<V> retryer) {
    this.retryer = Optional.of(retryer);
}

From source file:com.hellblazer.glassHouse.demo.ExampleAuthenticator.java

@Override
public Optional<AuthenticatedUser> authenticate(final BasicCredentials credentials)
        throws AuthenticationException {
    if ("secret".equals(credentials.getPassword())) {
        AuthenticatedUser user = new AuthenticatedUser() {
            private final String name = credentials.getUsername();

            @Override/*from  w  w w .ja  v  a 2 s .  c o m*/
            public String getName() {
                return name;
            }
        };
        return Optional.of(user);
    }
    return Optional.absent();
}

From source file:appeng.items.tools.quartz.ToolQuartzSword.java

public ToolQuartzSword(final AEFeature type) {
    super(ToolMaterial.IRON);
    this.feature = new ItemFeatureHandler(EnumSet.of(this.type = type, AEFeature.QuartzSword), this, this,
            Optional.of(type.name()));
}

From source file:org.jboss.aerogear.controller.router.rest.pagination.PaginationProperties.java

public PaginationProperties(final int offset, final int limit, final int total) {
    checkValues(offset, limit);/*from   w ww  .ja  v a 2  s.c  o  m*/
    this.offset = offset;
    this.limit = limit;
    this.total = total == -1 ? Optional.<Integer>absent() : Optional.of(Integer.valueOf(total));
}

From source file:com.dowdandassociates.gentoo.bootstrap.JSchProvider.java

public Optional<JSch> get() {
    log.info("Get JSch");
    try {//from  w  ww.j a  va  2s . co  m
        JSch jsch = new JSch();

        jsch.addIdentity(keyPair.getFilename());

        return Optional.of(jsch);
    } catch (JSchException jse) {
        log.error(jse.getMessage(), jse);
        return Optional.absent();
    }
}