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

List of usage examples for com.google.common.collect Iterables getOnlyElement

  1. HOME
  2. Java
  3. com.google.common
  4. com.google.common.collect.*
  5. Iterables
  6. 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:com.google.errorprone.bugpatterns.time.JodaDurationWithMillis.java

@Override
public Description matchMethodInvocation(MethodInvocationTree tree, VisitorState state) {
    if (!MATCHER.matches(tree, state)) {
        return Description.NO_MATCH;
    }//from   ww w.  ja  va  2 s  . c om

    SuggestedFix.Builder builder = SuggestedFix.builder();
    String replacement = SuggestedFixes.qualifyType(state, builder, "org.joda.time.Duration") + ".millis(";
    ExpressionTree millisArg = Iterables.getOnlyElement(tree.getArguments());

    builder.replace(((JCTree) tree).getStartPosition(), ((JCTree) millisArg).getStartPosition(), replacement);
    return describeMatch(tree, builder.build());
}

From source file:org.jclouds.trmk.vcloud_0_8.location.OrgAndVDCToLocationSupplier.java

protected Builder<Location> buildJustProviderOrVDCs() {
    Builder<Location> locations = ImmutableSet.builder();
    Location provider = Iterables.getOnlyElement(super.get());
    if (orgNameToResource.get().size() == 0)
        return locations.add(provider);
    Map<String, Supplier<Set<String>>> isoCodesById = isoCodesByIdSupplier.get();
    for (ReferenceType org : orgNameToResource.get().values()) {
        LocationBuilder builder = new LocationBuilder().scope(LocationScope.REGION)
                .id(org.getHref().toASCIIString()).description(org.getName()).parent(provider);
        if (isoCodesById.containsKey(org.getHref().toASCIIString()))
            builder.iso3166Codes(isoCodesById.get(org.getHref().toASCIIString()).get());
        Location orgL = builder.build();
        for (ReferenceType vdc : orgNameToVDCResource.get().get(org.getName()).getVDCs().values()) {
            builder = new LocationBuilder().scope(LocationScope.ZONE).id(vdc.getHref().toASCIIString())
                    .description(vdc.getName()).parent(orgL);
            if (isoCodesById.containsKey(vdc.getHref().toASCIIString()))
                builder.iso3166Codes(isoCodesById.get(vdc.getHref().toASCIIString()).get());
            locations.add(builder.build());
        }/*from  ww  w .  j a  v a2s. c o  m*/
    }
    return locations;
}

From source file:com.opengamma.financial.analytics.model.black.BlackDiscountingForwardDeltaFXOptionFunction.java

@Override
public CompiledFunctionDefinition compile(final FunctionCompilationContext context, final Instant atInstant) {
    return new BlackDiscountingCompiledFunction(getTargetToDefinitionConverter(context),
            getDefinitionToDerivativeConverter(context), false) {

        @Override/*from   w w w.  ja  v  a  2s.c  o m*/
        protected Set<ComputedValue> getValues(final FunctionExecutionContext executionContext,
                final FunctionInputs inputs, final ComputationTarget target,
                final Set<ValueRequirement> desiredValues, final InstrumentDerivative derivative,
                final FXMatrix fxMatrix) {
            final BlackForexSmileProvider blackData = getBlackSurface(executionContext, inputs, target,
                    fxMatrix);
            final double forwardDelta = derivative.accept(CALCULATOR, blackData);
            final ValueRequirement desiredValue = Iterables.getOnlyElement(desiredValues);
            final ValueProperties properties = desiredValue.getConstraints().copy().get();
            final ValueSpecification spec = new ValueSpecification(FORWARD_DELTA, target.toSpecification(),
                    properties);
            return Collections.singleton(new ComputedValue(spec, forwardDelta));
        }

    };
}

From source file:com.opengamma.financial.analytics.model.black.BlackDiscountingForwardGammaFXOptionFunction.java

@Override
public CompiledFunctionDefinition compile(final FunctionCompilationContext context, final Instant atInstant) {
    return new BlackDiscountingCompiledFunction(getTargetToDefinitionConverter(context),
            getDefinitionToDerivativeConverter(context), false) {

        @Override//from  w ww . j a v a  2 s  .c o  m
        protected Set<ComputedValue> getValues(final FunctionExecutionContext executionContext,
                final FunctionInputs inputs, final ComputationTarget target,
                final Set<ValueRequirement> desiredValues, final InstrumentDerivative derivative,
                final FXMatrix fxMatrix) {
            final BlackForexSmileProvider blackData = getBlackSurface(executionContext, inputs, target,
                    fxMatrix);
            final double forwardGamma = derivative.accept(CALCULATOR, blackData);
            final ValueRequirement desiredValue = Iterables.getOnlyElement(desiredValues);
            final ValueProperties properties = desiredValue.getConstraints().copy().get();
            final ValueSpecification spec = new ValueSpecification(FORWARD_GAMMA, target.toSpecification(),
                    properties);
            return Collections.singleton(new ComputedValue(spec, forwardGamma));
        }

    };
}

From source file:com.groupon.jenkins.extensions.DotCiExtensionsHelper.java

private <T extends DotCiExtension> List<T> createPlugins(List<?> pluginSpecs, Class<T> extensionClass) {
    if (Iterables.isEmpty(pluginSpecs)) {
        return Collections.emptyList();
    }//www. java 2s.  c  o  m
    List<T> plugins = new ArrayList<T>(pluginSpecs.size());
    for (Object pluginSpec : pluginSpecs) {
        String pluginName;
        Object options;
        if (pluginSpec instanceof String) {
            pluginName = (String) pluginSpec;
            options = new HashMap<Object, Object>();
        } else { // has to be a Map
            Map<String, Object> pluginSpecMap = (Map<String, Object>) pluginSpec;
            pluginName = Iterables.getOnlyElement(pluginSpecMap.keySet());
            options = pluginSpecMap.get(pluginName);
        }
        plugins.add(create(pluginName, options, extensionClass));
    }
    return plugins;
}

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

/**
 * Returns at most one associated scoped annotation from the source code element, throwing an
 * exception if there are more than one.
 *///from  w  w w . jav  a 2s  .com
static Optional<Scope> uniqueScopeOf(Element element) {
    ImmutableSet<? extends AnnotationMirror> scopeAnnotations = getScopes(element);
    if (scopeAnnotations.isEmpty()) {
        return Optional.empty();
    }
    return Optional.of(scope(Iterables.getOnlyElement(scopeAnnotations)));
}

From source file:org.jclouds.rimuhosting.miro.location.RimuHostingLocationSupplier.java

@Override
public Set<? extends Location> get() {
    Builder<Location> locations = ImmutableSet.builder();
    Iterable<DataCenter> list = Iterables
            .filter(Iterables.transform(sync.getPricingPlanList(), new Function<PricingPlan, DataCenter>() {

                @Override//from ww w . j  av  a2  s  . c  o  m
                public DataCenter apply(PricingPlan arg0) {
                    return arg0.getDataCenter();
                }

            }), Predicates.<DataCenter>notNull());
    Location provider = Iterables.getOnlyElement(super.get());
    if (Iterables.size(list) == 0)
        locations.add(provider);
    else {
        Map<String, Supplier<Set<String>>> isoCodesById = isoCodesByIdSupplier.get();
        for (DataCenter from : list) {
            LocationBuilder builder = new LocationBuilder().scope(LocationScope.ZONE).id(from.getId())
                    .description(from.getName()).parent(provider);
            if (isoCodesById.containsKey(from.getId()))
                builder.iso3166Codes(isoCodesById.get(from.getId()).get());
            locations.add(builder.build());
        }
    }
    return locations.build();
}

From source file:com.opengamma.financial.analytics.model.discounting.DiscountingInflationPVFunction.java

@Override
public CompiledFunctionDefinition compile(final FunctionCompilationContext context, final Instant atInstant) {
    return new DiscountingInflationCompiledFunction(getTargetToDefinitionConverter(context),
            getDefinitionToDerivativeConverter(context), true) {

        @Override/*from  w  ww.j  a  v  a  2 s  .c  om*/
        protected Set<ComputedValue> getValues(final FunctionExecutionContext executionContext,
                final FunctionInputs inputs, final ComputationTarget target,
                final Set<ValueRequirement> desiredValues, final InstrumentDerivative derivative,
                final FXMatrix fxMatrix) {
            final InflationProviderInterface data = (InflationProviderInterface) inputs.getValue(CURVE_BUNDLE);
            final ValueRequirement desiredValue = Iterables.getOnlyElement(desiredValues);
            final ValueProperties properties = desiredValue.getConstraints().copy().get();
            final Currency currency = FinancialSecurityUtils.getCurrency(target.getTrade().getSecurity());
            final MultipleCurrencyAmount mca = derivative.accept(CALCULATOR, data);
            final ValueSpecification spec = new ValueSpecification(PRESENT_VALUE, target.toSpecification(),
                    properties);
            return Collections.singleton(new ComputedValue(spec, mca.getAmount(currency)));
        }
    };
}

From source file:com.opengamma.financial.analytics.model.discounting.DiscountingInflationNetAmountFunction.java

@Override
public CompiledFunctionDefinition compile(final FunctionCompilationContext context, final Instant atInstant) {
    return new DiscountingInflationCompiledFunction(getTargetToDefinitionConverter(context),
            getDefinitionToDerivativeConverter(context), true) {

        @Override//from  w  ww .j  a v a 2 s .  co  m
        protected Set<ComputedValue> getValues(final FunctionExecutionContext executionContext,
                final FunctionInputs inputs, final ComputationTarget target,
                final Set<ValueRequirement> desiredValues, final InstrumentDerivative derivative,
                final FXMatrix fxMatrix) {
            final InflationProviderInterface data = (InflationProviderInterface) inputs.getValue(CURVE_BUNDLE);
            final ValueRequirement desiredValue = Iterables.getOnlyElement(desiredValues);
            final ValueProperties properties = desiredValue.getConstraints().copy().get();
            final Currency currency = FinancialSecurityUtils.getCurrency(target.getTrade().getSecurity());
            final MultipleCurrencyAmount mca = derivative.accept(CALCULATOR, data);
            final ValueSpecification spec = new ValueSpecification(INFLATION_NET_AMOUNT,
                    target.toSpecification(), properties);
            return Collections.singleton(new ComputedValue(spec, mca.getAmount(currency)));
        }
    };
}

From source file:org.jclouds.cache.CacheServerInstaller.java

private NodeMetadata getCacheServer(final Template template) throws RunNodesException {
    try {//w  ww. j av  a2s .c om
        return Iterables.getOnlyElement(
                ctx.getComputeService().listNodesDetailsMatching(new Predicate<ComputeMetadata>() {
                    @Override
                    public boolean apply(ComputeMetadata input) {
                        checkArgument(input instanceof NodeMetadata);
                        NodeMetadata node = (NodeMetadata) input;
                        return node.getGroup().startsWith(CACHE_SERVER_GROUP) && node.getGroup().endsWith(
                                template.getImage().getOperatingSystem().getFamily().name().toLowerCase());
                    }
                }));
    } catch (NoSuchElementException e) {
        logger.info("No cache server was found. Creating a new one [Template: %s ]", template);
        NodeMetadata node = Iterables.getOnlyElement(ctx.getComputeService().createNodesInGroup(
                CACHE_SERVER_GROUP + "-"
                        + template.getImage().getOperatingSystem().getFamily().name().toLowerCase(),
                1, template));
        logger.info("New cache server node created: %s ", node);
        ctx.getComputeService().runScriptOnNode(node.getId(), AdminAccess.standard());
        return node;
    } catch (IllegalArgumentException e) {
        throw new IllegalStateException("Found multiple cache servers!");
    }
}