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.aws.ec2.predicates.PlacementGroupDeleted.java

private PlacementGroup refresh(PlacementGroup group) {
    return Iterables.getOnlyElement(client.getPlacementGroupApi().get()
            .describePlacementGroupsInRegion(group.getRegion(), group.getName()));
}

From source file:org.jclouds.ec2.compute.predicates.InstancePresent.java

protected void refresh(RegionAndName instance) {
    Iterables.getOnlyElement(Iterables.getOnlyElement(
            client.getInstanceServices().describeInstancesInRegion(instance.getRegion(), instance.getName())));
}

From source file:org.apache.calcite.adapter.druid.UnaryPrefixOperatorConversion.java

@Override
public String toDruidExpression(RexNode rexNode, RelDataType rowType, DruidQuery druidQuery) {

    final RexCall call = (RexCall) rexNode;

    final List<String> druidExpressions = DruidExpressions.toDruidExpressions(druidQuery, rowType,
            call.getOperands());//w w  w .jav a 2 s . com

    if (druidExpressions == null) {
        return null;
    }

    return DruidQuery.format("(%s %s)", druidOperator, Iterables.getOnlyElement(druidExpressions));
}

From source file:org.cebolla.injection.RepositoryRegister.java

public Optional<Object> getRepositoryForInjection(Class<?> targetClass) {
    Set<Object> candidates = new HashSet<>();

    for (Collection<?> collection : repositories.values()) {
        for (Object repository : collection) {
            if (targetClass.isAssignableFrom(repository.getClass())) {
                candidates.add(repository);
            }/*www  .j a  v  a  2s .  com*/
        }
    }

    if (candidates.isEmpty()) {
        return Optional.absent();
    } else if (candidates.size() > 1) {
        throw new RuntimeException(
                "Ambiguous fake repository for target-class " + targetClass + ": " + candidates);
    } else {
        return Optional.of(Iterables.getOnlyElement(candidates));
    }
}

From source file:com.opengamma.strata.report.framework.expression.BeanTokenEvaluator.java

@Override
public Set<String> tokens(Bean bean) {
    if (bean.propertyNames().size() == 1) {
        String singlePropertyName = Iterables.getOnlyElement(bean.propertyNames());
        Object propertyValue = bean.property(singlePropertyName).get();
        Set<String> valueTokens = ValuePathEvaluator.tokens(propertyValue);

        return ImmutableSet.<String>builder().add(singlePropertyName).addAll(valueTokens).build();
    } else {/* ww  w  . j  av a2 s .  c  o  m*/
        return bean.propertyNames();
    }
}

From source file:com.opengamma.financial.analytics.model.forex.forward.FXForwardSpotRateFunction.java

@Override
public Set<ComputedValue> execute(final FunctionExecutionContext executionContext, final FunctionInputs inputs,
        final ComputationTarget target, final Set<ValueRequirement> desiredValues)
        throws AsynchronousExecution {
    final ValueRequirement desiredValue = Iterables.getOnlyElement(desiredValues);
    final String dataType = desiredValue.getConstraint(PROPERTY_DATA_TYPE);
    final FinancialSecurity security = (FinancialSecurity) target.getSecurity();
    final UnorderedCurrencyPair currencyPair = UnorderedCurrencyPair.of(
            security.accept(ForexVisitors.getPayCurrencyVisitor()),
            security.accept(ForexVisitors.getReceiveCurrencyVisitor()));
    if (dataType.equals(LIVE)) {
        final Object spotObject = inputs.getValue(ValueRequirementNames.SPOT_RATE);
        if (spotObject == null) {
            throw new OpenGammaRuntimeException("Could not get live market data for " + currencyPair);
        }//w  w w. j  av  a2 s  .c o m
        final double spot = (Double) spotObject;
        return Collections.singleton(new ComputedValue(
                new ValueSpecification(ValueRequirementNames.SPOT_RATE_FOR_SECURITY, target.toSpecification(),
                        createValueProperties().with(PROPERTY_DATA_TYPE, LIVE).get()),
                spot));
    } else if (dataType.equals(LAST_CLOSE)) {
        final Object spotObject = inputs.getValue(ValueRequirementNames.HISTORICAL_TIME_SERIES_LATEST);
        if (spotObject == null) {
            throw new OpenGammaRuntimeException("Could not get last close market data for " + currencyPair);
        }
        final double spot = (Double) spotObject;
        return Collections.singleton(new ComputedValue(
                new ValueSpecification(ValueRequirementNames.SPOT_RATE_FOR_SECURITY, target.toSpecification(),
                        createValueProperties().with(PROPERTY_DATA_TYPE, LAST_CLOSE).get()),
                spot));
    }
    throw new OpenGammaRuntimeException("Did not recognise property type " + dataType);
}

From source file:com.opengamma.financial.analytics.model.credit.isda.cdsoption.ISDACreditDefaultSwapOptionBucketedCS01Function.java

@Override
protected Set<ComputedValue> getComputedValue(final CreditDefaultSwapOptionDefinition definition,
        final ISDADateCurve yieldCurve, final double vol, final ZonedDateTime[] calibrationTenors,
        final double[] marketSpreads, final HazardRateCurve hazardRateCurve, final ZonedDateTime valuationTime,
        final ComputationTarget target, final ValueProperties properties) {
    final Double spreadCurveBump = Double.valueOf(Iterables.getOnlyElement(
            properties.getValues(CreditInstrumentPropertyNamesAndValues.PROPERTY_SPREAD_CURVE_BUMP)));
    final SpreadBumpType spreadBumpType = SpreadBumpType.valueOf(Iterables.getOnlyElement(
            properties.getValues(CreditInstrumentPropertyNamesAndValues.PROPERTY_SPREAD_BUMP_TYPE)));
    final double[] cs01 = CALCULATOR.getCS01BucketedCreditDefaultSwapOption(valuationTime, definition, vol,
            yieldCurve, hazardRateCurve, calibrationTenors, marketSpreads, spreadCurveBump, spreadBumpType);
    final int n = calibrationTenors.length;
    final LocalDate[] dates = new LocalDate[n];
    for (int i = 0; i < n; i++) {
        dates[i] = calibrationTenors[i].toLocalDate();
    }/*  w  w w  . jav a2s  .  c o m*/
    final LocalDateLabelledMatrix1D cs01Matrix = new LocalDateLabelledMatrix1D(dates, cs01);
    final ValueSpecification spec = new ValueSpecification(ValueRequirementNames.BUCKETED_CS01,
            target.toSpecification(), properties);
    return Collections.singleton(new ComputedValue(spec, cs01Matrix));
}

From source file:org.apache.beam.runners.samza.translation.SamzaPublishViewTransformOverride.java

@Override
public PTransformReplacement<PCollection<ElemT>, PCollection<ElemT>> getReplacementTransform(
        AppliedPTransform<PCollection<ElemT>, PCollection<ElemT>, View.CreatePCollectionView<ElemT, ViewT>> transform) {

    @SuppressWarnings("unchecked")
    PCollection<ElemT> input = (PCollection<ElemT>) Iterables.getOnlyElement(transform.getInputs().values());

    return PTransformReplacement.of(input,
            new SamzaCreatePCollectionViewTransform<>(transform.getTransform().getView()));
}

From source file:com.opengamma.financial.analytics.model.forex.AbstractSecurityFXHistoricalTimeSeriesFunction.java

@Override
public Set<ComputedValue> execute(final FunctionExecutionContext executionContext, final FunctionInputs inputs,
        final ComputationTarget target, final Set<ValueRequirement> desiredValues) {
    final ValueRequirement desiredValue = Iterables.getOnlyElement(desiredValues);
    final String desiredCurrency = desiredValue.getConstraint(ValuePropertyNames.CURRENCY);
    final Collection<Currency> currencies = FinancialSecurityUtils.getCurrencies(target.getSecurity(),
            _securitySource);//from  w w  w . j av a 2  s . c  om
    if (currencies.size() != inputs.getAllValues().size()) {
        if (!currencies.contains(Currency.of(desiredCurrency))) {
            throw new OpenGammaRuntimeException("Do not have one FX series for each requested");
        }
    }
    final Map<UnorderedCurrencyPair, HistoricalTimeSeries> fxSeries = new HashMap<UnorderedCurrencyPair, HistoricalTimeSeries>();
    final Iterator<Currency> currencyIterator = currencies.iterator();
    for (final ComputedValue input : inputs.getAllValues()) {
        final Currency currency = currencyIterator.next();
        if (currency.getCode().equals(desiredCurrency)) {
            currencyIterator.next();
        } else {
            fxSeries.put(UnorderedCurrencyPair.of(currency, Currency.of(desiredCurrency)),
                    (HistoricalTimeSeries) input.getValue());
        }
    }
    final ValueProperties properties = createValueProperties()
            .with(ValuePropertyNames.CURRENCY, desiredCurrency).get();
    final ValueSpecification outputSpec = new ValueSpecification(
            ValueRequirementNames.HISTORICAL_FX_TIME_SERIES, target.toSpecification(), properties);
    return ImmutableSet.of(new ComputedValue(outputSpec, fxSeries));
}

From source file:org.eclipse.sirius.diagram.ui.internal.edit.parts.SiriusNoteEditPart.java

/**
 * Redirect the direct edit request to the
 * {@link DescriptionCompartmentEditPart}.
 * //from w  w w.  j  a v a  2s . c  o  m
 * @param request
 *            the direct edit request
 */
@Override
protected void performDirectEditRequest(Request request) {
    Iterable<DescriptionCompartmentEditPart> descriptionCompartmentEditPartsfilter = Iterables
            .filter(this.getChildren(), DescriptionCompartmentEditPart.class);
    if (Iterables.size(descriptionCompartmentEditPartsfilter) == 1) {
        DescriptionCompartmentEditPart descriptionCompartmentEditPart = Iterables
                .getOnlyElement(descriptionCompartmentEditPartsfilter);
        descriptionCompartmentEditPart.performRequest(request);
    }
}