Example usage for com.google.common.base Optional get

Introduction

In this page you can find the example usage for com.google.common.base Optional get.

Prototype

public abstract T get();

Source Link

Document

Returns the contained instance, which must be present.

Usage

From source file:org.eclipse.buildship.core.workspace.internal.JavaSourceSettingsUpdater.java

public static void update(IJavaProject project, OmniJavaSourceSettings sourceSettings, IProgressMonitor monitor)
        throws CoreException {
    SubMonitor progress = SubMonitor.convert(monitor, 1);
    String sourceVersion = sourceSettings.getSourceLanguageLevel().getName();
    String targetVersion = sourceSettings.getTargetBytecodeLevel().getName();
    File vmLocation = sourceSettings.getTargetRuntime().getHomeDirectory();

    IVMInstall vm = EclipseVmUtil.findOrRegisterStandardVM(targetVersion, vmLocation);
    Optional<IExecutionEnvironment> executionEnvironment = EclipseVmUtil
            .findExecutionEnvironment(targetVersion);
    if (executionEnvironment.isPresent()) {
        addExecutionEnvironmentToClasspath(project, executionEnvironment.get(), progress.newChild(1));
    } else {// w  w w .  j  a v a2s. c  om
        addVmToClasspath(project, vm, progress.newChild(1));
    }

    boolean compilerOptionChanged = false;
    compilerOptionChanged |= updateJavaProjectOptionIfNeeded(project, JavaCore.COMPILER_COMPLIANCE,
            sourceVersion);
    compilerOptionChanged |= updateJavaProjectOptionIfNeeded(project, JavaCore.COMPILER_SOURCE, sourceVersion);
    compilerOptionChanged |= updateJavaProjectOptionIfNeeded(project, JavaCore.COMPILER_CODEGEN_TARGET_PLATFORM,
            targetVersion);

    if (compilerOptionChanged && isProjectAutoBuildingEnabled()) {
        scheduleJdtBuild(project.getProject());
    }
}

From source file:org.sonar.server.computation.queue.InternalCeQueueImpl.java

private static void updateTaskResult(CeActivityDto activityDto, @Nullable CeTaskResult taskResult) {
    if (taskResult != null) {
        java.util.Optional<String> analysisUuid = taskResult.getAnalysisUuid();
        if (analysisUuid.isPresent()) {
            activityDto.setAnalysisUuid(analysisUuid.get());
        }//from w  ww.  j  a  v  a 2 s.  co  m
    }
}

From source file:de.azapps.mirakel.helper.WidgetHelper.java

@NonNull
public static ListMirakel getList(final Context context, final int widgetId) {
    final int listId = getSettings(context).getInt(getKey(widgetId, "list_id"), 0);
    final Optional<ListMirakel> list = ListMirakel.get(listId);
    if (!list.isPresent()) {
        return SpecialList.firstSpecialSafe();
    } else {//from w  ww  .  j  a  v a 2 s.com
        return list.get();
    }
}

From source file:org.deephacks.confit.internal.jpa.JpaProperty.java

private static EntityManager getEmOrFail() {
    Optional<EntityManager> em = getEm();
    if (em.isPresent()) {
        return em.get();
    }// w  w  w .jav  a  2s.c om
    throw JpaEvents.JPA202_MISSING_THREAD_EM();
}

From source file:io.urmia.job.run.Main.java

private static ServiceInstance<NodeType> getMyMatchingODSInstance(ServiceInstance<NodeType> me)
        throws Exception {
    int rc = ns.getRunningCount(me);
    System.err.println("my running count: " + rc);
    Optional<ServiceInstance<NodeType>> ods = ns.getOfType(NodeType.ODS, me.getAddress(), rc);
    if (!ods.isPresent())
        throw new RuntimeException("unable to find matching ODS at: " + me.getAddress() + ", index: " + rc);
    return ods.get();
}

From source file:org.opendaylight.netvirt.vpnmanager.api.VpnExtraRouteHelper.java

public static List<Routes> getAllExtraRoutes(DataBroker broker, String vpnName, String vrfId) {
    Optional<ExtraRoutes> extraRoutes = MDSALUtil.read(broker, LogicalDatastoreType.OPERATIONAL,
            getVpnToExtrarouteIdentifier(vpnName, vrfId));
    List<Routes> extraRoutesList = new ArrayList<>();
    if (extraRoutes.isPresent()) {
        extraRoutesList = extraRoutes.get().getRoutes();
    }//from w w w .  j a v a 2 s  . com
    return extraRoutesList;
}

From source file:brooklyn.util.flags.MethodCoercions.java

/**
 * Tries to find a multiple-parameter method with each parameter compatible with (can be coerced to) the
 * corresponding argument, and invokes it.
 *
 * @param instance the object to invoke the method on
 * @param methodName the name of the method to invoke
 * @param argument a list of the arguments to the method's parameters.
 * @return the result of the method call, or {@link brooklyn.util.guava.Maybe#absent()} if method could not be matched.
 */// w  w  w.j av  a2s. c  o  m
public static Maybe<?> tryFindAndInvokeMultiParameterMethod(final Object instance, final String methodName,
        final List<?> arguments) {
    Class<?> clazz = instance.getClass();
    Iterable<Method> methods = Arrays.asList(clazz.getMethods());
    Optional<Method> matchingMethod = Iterables.tryFind(methods,
            matchMultiParameterMethod(methodName, arguments));
    if (matchingMethod.isPresent()) {
        Method method = matchingMethod.get();
        try {
            int numOptionParams = ((List) arguments).size();
            Object[] coercedArguments = new Object[numOptionParams];
            for (int paramCount = 0; paramCount < numOptionParams; paramCount++) {
                Object argument = arguments.get(paramCount);
                Type paramType = method.getGenericParameterTypes()[paramCount];
                coercedArguments[paramCount] = TypeCoercions.coerce(argument, TypeToken.of(paramType));
            }
            return Maybe.of(method.invoke(instance, coercedArguments));
        } catch (IllegalAccessException | InvocationTargetException e) {
            throw Exceptions.propagate(e);
        }
    } else {
        return Maybe.absent();
    }
}

From source file:org.apache.brooklyn.util.core.flags.MethodCoercions.java

/**
 * Tries to find a multiple-parameter method with each parameter compatible with (can be coerced to) the
 * corresponding argument, and invokes it.
 *
 * @param instance the object to invoke the method on
 * @param methodName the name of the method to invoke
 * @param argument a list of the arguments to the method's parameters.
 * @return the result of the method call, or {@link org.apache.brooklyn.util.guava.Maybe#absent()} if method could not be matched.
 *///from ww  w . j  av  a  2s.c o m
public static Maybe<?> tryFindAndInvokeMultiParameterMethod(final Object instance, final String methodName,
        final List<?> arguments) {
    Class<?> clazz = instance.getClass();
    Iterable<Method> methods = Arrays.asList(clazz.getMethods());
    Optional<Method> matchingMethod = Iterables.tryFind(methods,
            matchMultiParameterMethod(methodName, arguments));
    if (matchingMethod.isPresent()) {
        Method method = matchingMethod.get();
        try {
            int numOptionParams = ((List<?>) arguments).size();
            Object[] coercedArguments = new Object[numOptionParams];
            for (int paramCount = 0; paramCount < numOptionParams; paramCount++) {
                Object argument = arguments.get(paramCount);
                Type paramType = method.getGenericParameterTypes()[paramCount];
                coercedArguments[paramCount] = TypeCoercions.coerce(argument, TypeToken.of(paramType));
            }
            return Maybe.of(method.invoke(instance, coercedArguments));
        } catch (IllegalAccessException | InvocationTargetException e) {
            throw Exceptions.propagate(e);
        }
    } else {
        return Maybe.absent();
    }
}

From source file:org.sonar.server.computation.task.projectanalysis.qualitymodel.NewQualityModelMeasuresVisitor.java

private static long getLongValue(Optional<Measure> measure, Period period) {
    if (!measure.isPresent()) {
        return 0L;
    }/*from w w  w . j av a  2  s  . c o m*/
    return getLongValue(measure.get(), period);
}

From source file:org.onos.yangtools.yang.model.repo.api.SourceIdentifier.java

/**
 * Returns filename for this YANG module as specified in RFC 6020.
 *
 * Returns filename in format//from   ww  w .  j  a  v  a 2s  .c o  m
 * <code>moduleName ['@' revision] '.yang'</code>
 *
 * Where Where revision-date is in format YYYY-mm-dd.
 *
 * <p>
 * See
 * http://tools.ietf.org/html/rfc6020#section-5.2
 *
 * @return Filename for this source identifier.
 */
public static final String toYangFileName(final String moduleName, final Optional<String> revision) {
    StringBuilder filename = new StringBuilder(moduleName);
    if (revision.isPresent()) {
        filename.append('@');
        filename.append(revision.get());
    }
    filename.append(".yang");
    return filename.toString();
}