Example usage for com.google.common.collect Iterables getOnlyElement

Introduction

In this page you can find the example usage for com.google.common.collect Iterables getOnlyElement.

Prototype

public static <T> T getOnlyElement(Iterable<T> iterable)

Source Link

Document

Returns the single element contained in iterable .

Usage

From source file:org.jclouds.cloudtransformer.openstack.GenericComputeServiceContextToOpenstackComputeServiceContext.java

public static NodeMetadata getDevstackNode(ComputeServiceContext ctx) {
    return Iterables
            .getOnlyElement(ctx.getComputeService().listNodesDetailsMatching(new Predicate<ComputeMetadata>() {
                @Override//w w w  . j a v a 2 s .  com
                public boolean apply(ComputeMetadata input) {
                    checkArgument(input instanceof NodeMetadata);
                    return ((NodeMetadata) input).getGroup().equals("devstack");
                }
            }));
}

From source file:org.sonar.plugins.scmactivity.PreviousSha1Finder.java

public String find(Resource resource) {
    List<Measure> measures = timeMachine.getMeasures(queryPreviousHash(resource));
    if (measures.isEmpty()) {
        return "";
    }/*from  www. ja  va  2 s .  c om*/

    return Iterables.getOnlyElement(measures).getData();
}

From source file:com.squareup.wire.ConsoleWireLogger.java

@Override
public void artifact(Path outputPath, FileSpec kotlinFile) {
    TypeSpec typeSpec = (TypeSpec) Iterables.getOnlyElement(kotlinFile.getMembers());
    if (quiet) {/*from  w  ww .  j a v  a 2  s  .  co  m*/
        System.out.printf("%s.%s%n", kotlinFile.getPackageName(), typeSpec.getName());
    } else {
        System.out.printf("Writing %s.%s to %s%n", kotlinFile.getPackageName(), typeSpec.getName(), outputPath);
    }
}

From source file:org.jclouds.gogrid.functions.ParseServerFromJsonResponse.java

@Override
public Server apply(HttpResponse arg0) {
    return Iterables.getOnlyElement(parser.apply(arg0));
}

From source file:com.google.gerrit.server.account.GroupBackends.java

/**
 * Runs {@link GroupBackend#suggest(String, Project)} and filters the result to return
 * the best suggestion, or null if one does not exist.
 *
 * @param groupBackend the group backend
 * @param name the name for which to suggest groups
 * @param project the project for which to suggest groups
 * @return the best single GroupReference suggestion
 *///  w  w  w .jav  a2 s  .  c  om
@Nullable
public static GroupReference findBestSuggestion(GroupBackend groupBackend, String name,
        @Nullable ProjectControl project) {
    Collection<GroupReference> refs = groupBackend.suggest(name, project);
    if (refs.size() == 1) {
        return Iterables.getOnlyElement(refs);
    }

    for (GroupReference ref : refs) {
        if (isExactSuggestion(ref, name)) {
            return ref;
        }
    }
    return null;
}

From source file:org.fuusio.api.nfc.SmartPosterRecord.java

public static SmartPosterRecord parse(final NdefRecord[] recordsRaw) {
    try {// ww  w.j  a v a2 s  .c  om
        final Iterable<ParsedNdefRecord> records = getRecords(recordsRaw);
        final UriRecord uri = Iterables.getOnlyElement(Iterables.filter(records, UriRecord.class));
        final TextRecord title = getFirstIfExists(records, TextRecord.class);
        final RecommendedAction action = parseRecommendedAction(recordsRaw);
        final String type = parseType(recordsRaw);
        return new SmartPosterRecord(uri, title, action, type);
    } catch (final NoSuchElementException e) {
        throw new IllegalArgumentException(e);
    }
}

From source file:org.jclouds.profitbricks.compute.function.LocationToLocation.java

@Override
public org.jclouds.domain.Location apply(Location in) {
    return new LocationBuilder().id(in.getId()).description(in.getDescription()).scope(LocationScope.REGION)
            .parent(Iterables.getOnlyElement(justProvider.get())).build();
}

From source file:org.jclouds.fujitsu.fgcp.xml.internal.GetPublicIPAttributesResponse.java

@Override
public Object getElement() {
    return Iterables.getOnlyElement(publicIPs);
}

From source file:com.android.build.gradle.integration.common.utils.DeviceHelper.java

public static IDevice getIDevice() throws DeviceException {
    return Iterables.getOnlyElement(getIDevices());
}

From source file:org.apache.whirr.service.TagBuilder.java

public static <T extends NodeMetadata> NodeMetadata getSingleNodeInRole(final String roleAbreviation,
        Collection<T> nodes) {
    return Iterables.getOnlyElement(Collections2.filter(nodes, new Predicate<NodeMetadata>() {
        @Override/*from w  w  w .j a  va 2s . c  o  m*/
        public boolean apply(NodeMetadata metadata) {
            return Iterables.contains(rolesFromTag(metadata.getTag()), roleAbreviation);
        }
    }));
}