Example usage for com.google.common.collect Maps uniqueIndex

List of usage examples for com.google.common.collect Maps uniqueIndex

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Introduction

In this page you can find the example usage for com.google.common.collect Maps uniqueIndex.

Prototype

public static <K, V> ImmutableMap<K, V> uniqueIndex(Iterator<V> values, Function<? super V, K> keyFunction)

Source Link

Document

Returns a map with the given values , indexed by keys derived from those values.

Usage

From source file:com.nesscomputing.cache.guava.GuavaCacheAdapter.java

@Override
public ImmutableMap<K, V> getAllPresent(Iterable<?> keys) {
    @SuppressWarnings("unchecked")
    Iterable<? extends K> extendedKeys = ImmutableSet.copyOf((Iterable<? extends K>) keys);
    Map<String, ? extends K> keyStrings = Maps.uniqueIndex(extendedKeys, keySerializer);
    Map<String, byte[]> response = cache.get(keyStrings.keySet());

    Builder<K, V> result = ImmutableMap.builder();

    for (Entry<String, byte[]> e : response.entrySet()) {
        K key = keyStrings.get(e.getKey());
        try {//w  w  w.  jav a  2s.  c o m
            result.put(key, valueDeserializer.apply(e.getValue()));
        } catch (Exception exc) {
            invalidate(key);
            throw Throwables.propagate(exc);
        }
    }

    return result.build();
}

From source file:com.viadeo.kasper.core.id.DefaultIDTransformer.java

private Map<ID, ID> doConvert(String vendor, Format sourceFormat, Format targetFormat, Collection<ID> values) {
    if (values.isEmpty() || targetFormat.equals(sourceFormat)) {
        return Maps.uniqueIndex(values, Functions.<ID>identity());
    }/* w  w  w .  ja v a2  s. c om*/

    for (final Converter converter : converterRegistry.getConverters(vendor, targetFormat)) {
        if (sourceFormat.equals(converter.getSource()) && targetFormat.equals(converter.getTarget())
                && vendor.equals(converter.getVendor())) {
            try {
                return converter.convert(values);
            } catch (FailedToTransformIDException e) {
                throw e;
            } catch (RuntimeException e) {
                throw new FailedToTransformIDException(
                        String.format("Failed to convert id from '%s' to '%s', <ids=%s>", sourceFormat,
                                targetFormat, values),
                        e);
            }
        }
    }

    throw new FailedToTransformIDException(
            String.format("No available converter allowing to convert id from '%s' to '%s', <ids=%s>",
                    sourceFormat, targetFormat, values));
}

From source file:com.proofpoint.cloudmanagement.service.JCloudsInstanceConnector.java

public JCloudsInstanceConnector(final JCloudsConfig config) {
    Preconditions.checkNotNull(config);/*w  w w . j av a  2  s  .  c o m*/

    this.name = config.getName();

    Properties overrides = new Properties();
    if (config.getLocation() != null) {
        overrides.setProperty(Constants.PROPERTY_ENDPOINT, config.getLocation());
    }
    overrides.setProperty(KeystoneProperties.CREDENTIAL_TYPE, CredentialType.PASSWORD_CREDENTIALS.toString());
    overrides.setProperty(KeystoneProperties.VERSION, "2.0");

    Set<Module> moduleOverrides = ImmutableSet.<Module>of(new JCloudsLoggingAdapterModule());

    ComputeServiceContext context = new ComputeServiceContextFactory().createContext(config.getApi(),
            config.getUser(), config.getSecret(), moduleOverrides, overrides);

    computeService = context.getComputeService();

    //There are too many images in ec2 to list them all, so we can't verify.
    if (!config.getApi().equals("aws-ec2")) {
        Preconditions
                .checkState(any(computeService.listImages(), new Predicate<org.jclouds.compute.domain.Image>() {
                    @Override
                    public boolean apply(@Nullable org.jclouds.compute.domain.Image image) {
                        return image.getId().endsWith(config.getDefaultImageId());
                    }
                }), "No image found for default image id [" + config.getDefaultImageId()
                        + "] please verify that this image exists");
    }

    defaultImageId = config.getDefaultImageId();

    hardwareMap = Maps.uniqueIndex(computeService.listHardwareProfiles(), new Function<Hardware, String>() {
        @Override
        public String apply(@Nullable Hardware hardware) {
            return firstNonNull(hardware.getName(), hardware.getId());
        }
    });

    locationMap = Maps.uniqueIndex(computeService.listAssignableLocations(), new Function<Location, String>() {
        @Override
        public String apply(@Nullable Location location) {
            return location.getId();
        }
    });

    templateOptions = getProviderSpecificOptions(config);

    getAllInstances();
}

From source file:org.dslforge.xtext.common.actions.BasicGenerateAction.java

protected Map<String, OutputConfiguration> getOutputConfigurations() {
    Set<OutputConfiguration> configurations = getDefaultOutputConfigurations();
    return Maps.uniqueIndex(configurations, new Function<OutputConfiguration, String>() {
        public String apply(OutputConfiguration from) {
            return from.getName();
        }/*from  ww  w.  j a v a2s. c  o  m*/
    });
}

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

/**
 * Groups {@code binding}'s implicit dependencies by their binding key, using the dependency keys
 * from the {@link Binding#unresolved()} binding if it exists.
 *//*from  ww  w .j  av a  2 s.  c  o m*/
private static ImmutableList<Collection<DependencyRequest>> groupByUnresolvedKey(Binding binding) {
    // If the binding has no unresolved version, just group the dependencies by binding key.
    if (!binding.unresolved().isPresent()) {
        return groupByKey(binding, Functions.<DependencyRequest>identity());
    }

    // Group the unresolved dependencies, replacing each one with its resolved version by looking it
    // up by request element.
    final ImmutableMap<Element, DependencyRequest> resolvedDependencies = Maps
            .uniqueIndex(binding.implicitDependencies(), new Function<DependencyRequest, Element>() {
                @Override
                public Element apply(DependencyRequest dependencyRequest) {
                    return dependencyRequest.requestElement();
                }
            });
    return groupByKey(binding.unresolved().get(), new Function<DependencyRequest, DependencyRequest>() {
        @Override
        public DependencyRequest apply(DependencyRequest unresolvedRequest) {
            return resolvedDependencies.get(unresolvedRequest.requestElement());
        }
    });
}

From source file:com.twitter.aurora.scheduler.storage.mem.MemTaskStore.java

@Timed("mem_storage_save_tasks")
@Override/*from ww  w .j a  v  a 2 s . c om*/
public void saveTasks(Set<IScheduledTask> newTasks) {
    checkNotNull(newTasks);
    Preconditions.checkState(Tasks.ids(newTasks).size() == newTasks.size(),
            "Proposed new tasks would create task ID collision.");

    Iterable<Task> canonicalized = Iterables.transform(newTasks, toTask);
    tasks.putAll(Maps.uniqueIndex(canonicalized, TO_ID));
    tasksByJobKey.putAll(taskIdsByJobKey(canonicalized));
}

From source file:com.b2international.snowowl.snomed.datastore.converter.SnomedReferenceSetMemberConverter.java

private void expandTargetComponent(List<SnomedReferenceSetMember> results) {
    if (expand().containsKey(SnomedRf2Headers.FIELD_TARGET_COMPONENT)) {
        final Options expandOptions = expand().get(SnomedRf2Headers.FIELD_TARGET_COMPONENT, Options.class);

        final Multimap<String, SnomedReferenceSetMember> membersByTargetComponent = HashMultimap.create();
        for (SnomedReferenceSetMember member : results) {
            final Map<String, Object> props = member.getProperties();
            if (props.containsKey(SnomedRf2Headers.FIELD_TARGET_COMPONENT)) {
                membersByTargetComponent.put(
                        ((SnomedCoreComponent) props.get(SnomedRf2Headers.FIELD_TARGET_COMPONENT)).getId(),
                        member);//from ww  w.  j a  va 2s. c  o  m
            }
        }

        final Multimap<ComponentCategory, String> targetComponentIdsByCategory = Multimaps
                .index(membersByTargetComponent.keySet(), new Function<String, ComponentCategory>() {
                    @Override
                    public ComponentCategory apply(String id) {
                        return SnomedIdentifiers.getComponentCategory(id);
                    }
                });

        for (ComponentCategory category : targetComponentIdsByCategory.keySet()) {
            final Collection<String> targetComponentIds = targetComponentIdsByCategory.get(category);
            final Map<String, ? extends SnomedCoreComponent> componentsById = Maps.uniqueIndex(
                    getComponents(category, targetComponentIds, expandOptions.get("expand", Options.class)),
                    IComponent.ID_FUNCTION);
            for (String targetComponentId : targetComponentIds) {
                final SnomedCoreComponent targetComponent = componentsById.get(targetComponentId);
                if (targetComponent != null) {
                    for (SnomedReferenceSetMember member : membersByTargetComponent.get(targetComponentId)) {
                        final Map<String, Object> newProps = newHashMap(member.getProperties());
                        newProps.put(SnomedRf2Headers.FIELD_TARGET_COMPONENT, targetComponent);
                        ((SnomedReferenceSetMember) member).setProperties(newProps);
                    }
                }
            }
        }
    }
}

From source file:org.apache.whirr.actions.ConfigureClusterAction.java

private Map<String, ? extends NodeMetadata> getNodesForInstanceIdsInCluster(Cluster cluster,
        ComputeService computeService) {
    Iterable<String> ids = Iterables.transform(cluster.getInstances(), new Function<Instance, String>() {

        @Override//from  w w  w . j av  a  2 s. c om
        public String apply(Instance arg0) {
            return arg0.getId();
        }

    });

    Set<? extends NodeMetadata> nodes = computeService
            .listNodesDetailsMatching(NodePredicates.withIds(Iterables.toArray(ids, String.class)));

    return Maps.uniqueIndex(nodes, getNodeId);
}

From source file:com.twitter.aurora.scheduler.base.Tasks.java

public static Map<String, IScheduledTask> mapById(Iterable<IScheduledTask> tasks) {
    return Maps.uniqueIndex(tasks, SCHEDULED_TO_ID);
}

From source file:org.opendaylight.controller.netconf.cli.reader.impl.ChoiceReader.java

private Map<String, ChoiceCaseNode> collectAllCases(final ChoiceSchemaNode schemaNode) {
    return Maps.uniqueIndex(schemaNode.getCases(), new Function<ChoiceCaseNode, String>() {
        @Override//w  ww .j  a  v  a2 s. c o m
        public String apply(final ChoiceCaseNode input) {
            return input.getQName().getLocalName();
        }
    });
}