List of usage examples for com.google.common.collect Iterables getOnlyElement
public static <T> T getOnlyElement(Iterable<T> iterable)
From source file:com.google.errorprone.refaster.CodeTransformerTestHelper.java
public JavaFileObject transform(JavaFileObject original) { JavaCompiler compiler = JavacTool.create(); DiagnosticCollector<JavaFileObject> diagnosticsCollector = new DiagnosticCollector<JavaFileObject>(); StandardJavaFileManager fileManager = compiler.getStandardFileManager(diagnosticsCollector, Locale.ENGLISH, UTF_8);//from w w w.j ava 2 s. c o m JavacTaskImpl task = (JavacTaskImpl) compiler.getTask(CharStreams.nullWriter(), fileManager, diagnosticsCollector, ImmutableList.<String>of(), null, ImmutableList.of(original)); try { SourceFile sourceFile = SourceFile.create(original); Iterable<? extends CompilationUnitTree> trees = task.parse(); task.analyze(); JCCompilationUnit tree = Iterables.getOnlyElement(Iterables.filter(trees, JCCompilationUnit.class)); DescriptionBasedDiff diff = DescriptionBasedDiff.create(tree); transformer().apply(new TreePath(tree), task.getContext(), diff); diff.applyDifferences(sourceFile); return JavaFileObjects.forSourceString( Iterables.getOnlyElement(Iterables.filter(tree.getTypeDecls(), JCClassDecl.class)).sym .getQualifiedName().toString(), sourceFile.getSourceText()); } catch (IOException e) { throw new RuntimeException(e); } }
From source file:org.jclouds.vcloud.terremark.TerremarkECloudClientLiveTestDisabled.java
@Override protected Entry<InternetService, PublicIpAddress> getNewInternetServiceAndIpForSSH(URI vdc) { PublicIpAddress ip = TerremarkECloudClient.class.cast(tmClient) .activatePublicIpInVDC(tmClient.findVDCInOrgNamed(null, null).getHref()); InternetService is = tmClient.addInternetServiceToExistingIp(ip.getId(), "SSH", Protocol.TCP, 22); Map<InternetService, PublicIpAddress> result = ImmutableMap.<InternetService, PublicIpAddress>of(is, ip); Entry<InternetService, PublicIpAddress> entry = Iterables.getOnlyElement(result.entrySet()); return entry; }
From source file:org.obm.icalendar.ical4jwrapper.ICalendarRecur.java
public Integer byMonthDay() { Collection<Integer> monthDayList = recur.getMonthDayList(); if (monthDayList != null && !monthDayList.isEmpty()) { return Iterables.getOnlyElement(monthDayList); }/*www.ja va 2s .c o m*/ return null; }
From source file:org.sosy_lab.cpachecker.cpa.smg.join.SMGJoinMapTargetAddress.java
public SMGJoinMapTargetAddress(SMG pSMG1, SMG pSMG2, SMG destSMG, SMGNodeMapping pMapping1, SMGNodeMapping pMapping2, Integer pAddress1, Integer pAddress2) { smg = destSMG;// w w w. ja va 2s. co m mapping1 = pMapping1; mapping2 = pMapping2; SMGObject target = destSMG.getNullObject(); // TODO: Ugly, refactor SMGEdgePointsTo pt = pSMG1.getPointer(pAddress1); SMGEdgePointsTo pt2 = pSMG2.getPointer(pAddress2); if (pt.getObject().notNull()) { target = pMapping1.get(pt.getObject()); } SMGTargetSpecifier tg; /*When mapping optional object to other abstract object, use tg of other object.*/ if ((pt.getObject().isAbstract() && pt.getObject().getKind() != SMGObjectKind.OPTIONAL) || pt2 == null || pt2.getObject().getKind() == SMGObjectKind.OPTIONAL) { tg = pt.getTargetSpecifier(); } else { tg = pt2.getTargetSpecifier(); } Set<SMGEdgePointsTo> edges = smg.getPtEdges(SMGEdgePointsToFilter.targetObjectFilter(target) .filterAtTargetOffset(pt.getOffset()).filterByTargetSpecifier(tg)); if (!edges.isEmpty()) { value = Iterables.getOnlyElement(edges).getValue(); return; } if (pAddress1.equals(pAddress2)) { value = pAddress1; } else { value = SMGValueFactory.getNewValue(); } smg.addValue(value); SMGEdgePointsTo nPtEdge = new SMGEdgePointsTo(value, target, pt.getOffset(), tg); smg.addPointsToEdge(nPtEdge); mapping1.map(pAddress1, value); mapping2.map(pAddress2, value); }
From source file:com.opengamma.financial.analytics.model.future.BondFutureFunction.java
@Override public Set<ComputedValue> execute(final FunctionExecutionContext executionContext, final FunctionInputs inputs, final ComputationTarget target, final Set<ValueRequirement> desiredValues) { final ZonedDateTime date = ZonedDateTime.now(executionContext.getValuationClock()); final ValueRequirement desiredValue = Iterables.getOnlyElement(desiredValues); final BondFutureSecurity security = (BondFutureSecurity) target.getSecurity(); final BondFutureDefinition definition = (BondFutureDefinition) security.accept(_visitor); final Double referencePrice = 0.0; // TODO Futures Refactor final String[] curveNames = getCurveNames(desiredValue); final BondFuture bondFuture = definition.toDerivative(date, referencePrice, curveNames); return calculate(security, bondFuture, getData(desiredValue, inputs, target), target); }
From source file:sklearn.svm.BaseLibSVMRegressor.java
@Override public SupportVectorMachineModel encodeModel(Schema schema) { int[] shape = getSupportVectorsShape(); int numberOfVectors = shape[0]; int numberOfFeatures = shape[1]; List<Integer> support = getSupport(); List<? extends Number> supportVectors = getSupportVectors(); List<? extends Number> dualCoef = getDualCoef(); List<? extends Number> intercept = getIntercept(); VectorDictionary vectorDictionary = SupportVectorMachineUtil.encodeVectorDictionary(support, supportVectors, numberOfVectors, numberOfFeatures, schema); List<VectorInstance> vectorInstances = vectorDictionary.getVectorInstances(); Kernel kernel = SupportVectorMachineUtil.encodeKernel(getKernel(), getDegree(), getGamma(), getCoef0()); SupportVectorMachine supportVectorMachine = SupportVectorMachineUtil .encodeSupportVectorMachine(vectorInstances, dualCoef, Iterables.getOnlyElement(intercept)); SupportVectorMachineModel supportVectorMachineModel = new SupportVectorMachineModel( MiningFunction.REGRESSION, ModelUtil.createMiningSchema(schema), vectorDictionary, null) .setKernel(kernel).addSupportVectorMachines(supportVectorMachine); return supportVectorMachineModel; }
From source file:org.trancecode.xproc.step.TemplateStepProcessor.java
@Override protected void execute(final StepInput input, final StepOutput output) { LOG.trace("start of step"); assert input != null; assert output != null; final XdmNode templateNode = input.readNode(XProcPorts.TEMPLATE); final Iterable<XdmNode> sourceNodeList = input.readNodes(XProcPorts.SOURCE); final int sourcesCount = Iterables.size(sourceNodeList); final XdmNode sourceNode; assert templateNode != null; assert sourceNodeList != null; if (sourcesCount == 1) { sourceNode = Iterables.getOnlyElement(sourceNodeList); } else if (sourcesCount > 1) { throw XProcExceptions.xc0068(input.getLocation()); } else {//from ww w .j a v a 2s . co m sourceNode = null; } final Map<QName, String> parameters = input.getParameters(XProcPorts.PARAMETERS); final Processor processor = input.getPipelineContext().getProcessor(); final SaxonBuilder builder = new SaxonBuilder(processor.getUnderlyingConfiguration()); builder.startDocument(); processNode(templateNode, sourceNode, input, builder, processor, parameters); builder.endDocument(); final XdmNode resultNode = builder.getNode(); output.writeNodes(XProcPorts.RESULT, resultNode); LOG.trace("built result:\n{}", resultNode); LOG.trace("end of step"); }
From source file:org.springframework.xd.ec2.cloud.AWSInstanceProvisioner.java
/** * Retrieve the instance information for the instance id based on the EC2Client * @param client AWS Client that executes the commands necessary to create the instance. * @param instanceId The id of the instance. * @return Instance with that instance id. *//*from w w w . ja v a 2s . co m*/ public static RunningInstance findInstanceById(AWSEC2Api client, String instanceId) { Assert.notNull(client, "client can not be null"); // search my account for the instance I just created Set<? extends Reservation<? extends RunningInstance>> reservations = client.getInstanceApi().get() .describeInstancesInRegion(null, instanceId); // last parameter (ids) narrows the // since we refined by instanceId there should only be one instance return Iterables.getOnlyElement(Iterables.getOnlyElement(reservations)); }
From source file:com.opengamma.financial.analytics.model.equity.EquityOptionMonetizedVegaFunction.java
@Override public Set<ValueRequirement> getRequirements(final FunctionCompilationContext context, final ComputationTarget target, final ValueRequirement desiredValue) { final ValueProperties constraints = desiredValue.getConstraints(); final Set<String> calculationMethod = constraints.getValues(ValuePropertyNames.CALCULATION_METHOD); if (calculationMethod == null || calculationMethod.size() != 1) { s_logger.error("Need to have a single calculation method"); return null; }//from w ww . j a va2 s .c o m final ValueProperties properties = ValueProperties.builder() .with(ValuePropertyNames.CALCULATION_METHOD, Iterables.getOnlyElement(calculationMethod)).get(); return Collections .singleton(new ValueRequirement(ValueRequirementNames.VEGA, target.toSpecification(), properties)); }
From source file:io.druid.sql.calcite.aggregation.builtin.MaxSqlAggregator.java
@Nullable @Override//from ww w . j av a 2s . c om public Aggregation toDruidAggregation(final PlannerContext plannerContext, final RowSignature rowSignature, final RexBuilder rexBuilder, final String name, final AggregateCall aggregateCall, final Project project, final List<Aggregation> existingAggregations) { if (aggregateCall.isDistinct()) { return null; } final List<DruidExpression> arguments = Aggregations.getArgumentsForSimpleAggregator(plannerContext, rowSignature, aggregateCall, project); if (arguments == null) { return null; } final DruidExpression arg = Iterables.getOnlyElement(arguments); final ValueType valueType = Calcites.getValueTypeForSqlTypeName(aggregateCall.getType().getSqlTypeName()); final ExprMacroTable macroTable = plannerContext.getExprMacroTable(); final String fieldName; final String expression; if (arg.isDirectColumnAccess()) { fieldName = arg.getDirectColumn(); expression = null; } else { fieldName = null; expression = arg.getExpression(); } return Aggregation.create(createMaxAggregatorFactory(valueType, name, fieldName, expression, macroTable)); }