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

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

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Introduction

In this page you can find the example usage for com.google.common.collect Iterables tryFind.

Prototype

public static <T> Optional<T> tryFind(Iterable<T> iterable, Predicate<? super T> predicate)

Source Link

Document

Returns an Optional containing the first element in iterable that satisfies the given predicate, if such an element exists.

Usage

From source file:com.codereligion.diff.internal.linewriter.MapLineWriter.java

/**
 * Transforms the given map {@code value} into a {@link SortedMap}.
 *
 * @param path the path which describes the position of the given value in the object graph
 * @param value the map to be sorted/*from   w  ww . j a v a 2  s  .  c o m*/
 * @return a new sorted map with the contents of the given map
 */
private SortedMap<Object, Object> transformToSortedMap(final String path, final Map<Object, Object> value) {

    final Optional<Object> anyKey = Iterables.tryFind(value.keySet(), Predicates.notNull());

    final boolean thereIsJustOneKeyAndItIsNull = !anyKey.isPresent();
    if (thereIsJustOneKeyAndItIsNull) {
        return new TreeMap<Object, Object>();
    }

    final Comparator<Object> comparator = findComparatorOrThrowException(path, anyKey.get());
    final SortedMap<Object, Object> sortedMap = new TreeMap<Object, Object>(comparator);
    sortedMap.putAll(value);

    return sortedMap;
}

From source file:org.pentaho.di.trans.dataservice.optimization.paramgen.ParameterGenerationFactory.java

private Optional<ParameterGenerationServiceFactory> getFactory(final StepMeta stepMeta) {
    return Iterables.tryFind(factories, new Predicate<ParameterGenerationServiceFactory>() {
        @Override//from  www.j a  v  a2s. co m
        public boolean apply(ParameterGenerationServiceFactory input) {
            return input.supportsStep(stepMeta);
        }
    });
}

From source file:com.kurtraschke.wmata.gtfsrealtime.services.WMATARouteMapperService.java

private AgencyAndId mapBusRoute(String routeID) {
    if (_staticMappings.containsKey(routeID)) {
        String staticMappedRoute = _staticMappings.getProperty(routeID);
        Optional<Route> matchedRoute = Iterables.tryFind(_gtfsRoutes,
                new ShortNameFilterPredicate(staticMappedRoute, true));

        if (matchedRoute.isPresent()) {
            AgencyAndId mappedRouteID = matchedRoute.get().getId();
            _log.info(/* w  w w .j  a va2s  . co m*/
                    "Mapped WMATA route " + routeID + " to GTFS route " + mappedRouteID + " (using override)");
            return mappedRouteID;
        } else {
            _log.warn("Could not apply static mapping of {} to {}; continuing...", routeID, staticMappedRoute);
        }
    }

    Matcher m = _routeExtract.matcher(routeID);

    if (m.matches()) {
        final String filteredRouteID = m.group(1);
        if (!_matchBadRoutes.apply(filteredRouteID)) {
            Optional<Route> matchedRoute = Iterables.tryFind(_gtfsRoutes,
                    new ShortNameFilterPredicate(filteredRouteID, true));

            if (matchedRoute.isPresent()) {
                AgencyAndId mappedRouteID = matchedRoute.get().getId();
                _log.info("Mapped WMATA route " + routeID + " to GTFS route " + mappedRouteID);
                return mappedRouteID;
            } else {
                _log.warn("Could not map WMATA route: " + routeID);
                return null;
            }
        } else {
            _log.warn("Not mapping blacklisted WMATA route: " + routeID);
            return null;
        }
    } else {
        _log.warn("Not mapping malformed WMATA route: " + routeID);
        return null;
    }
}

From source file:io.pelle.mango.client.web.module.ModuleHandler.java

@SuppressWarnings("unchecked")
public void startUIModule(final String moduleUrl, final String location1, final Map<String, Object> parameters,
        final Optional<AsyncCallback<IModuleUI>> callback) {

    final String location = getLocation(location1);

    LOG.info("starting ui module for url '" + moduleUrl + "'");

    Optional<IModuleUI> moduleUI = Iterables.tryFind(getModuleStack(location),
            new MouldeUrlPredicate(moduleUrl));

    if (moduleUI.isPresent()) {

        LOG.info("ui module for url '" + moduleUrl + "' already started (" + moduleUI.get().toString() + ")");

        moduleUI.get().updateUrl(moduleUrl);

        if (callback.isPresent()) {
            callback.get().onSuccess(moduleUI.get());
        }/*from w  w w.j  a v a 2  s .  c om*/

        MangoClientWeb.getInstance().getLayoutFactory().showModuleUI(moduleUI.get(), location);

    } else {

        if (ModuleUIFactoryRegistry.getInstance().supports(moduleUrl)) {

            ModuleUIFactoryRegistry.getInstance().getModuleFactory(moduleUrl).getNewInstance(moduleUrl,
                    new BaseAsyncCallback<IModuleUI, IModuleUI>(callback) {

                        @Override
                        public void onSuccess(IModuleUI moduleUI) {

                            if (moduleUI.contributesToBreadCrumbs()) {
                                stashCurrentAndShow(moduleUI, location);
                            } else {
                                closeCurrentAndShow(moduleUI, location);
                            }

                            onModuleUIAdd(moduleUI, location);

                            if (callback.isPresent()) {
                                callback.get().onSuccess(moduleUI);
                            }
                        }

                    }, parameters, peekCurrentModule(location));
        } else {
            throw new RuntimeException("unsupported module url '" + moduleUrl + "'");
        }
    }
}

From source file:org.onosproject.drivers.juniper.LinkDiscoveryJuniperImpl.java

@Override
public Set<LinkDescription> getLinks() {
    DeviceId localDeviceId = this.handler().data().deviceId();
    NetconfController controller = checkNotNull(handler().get(NetconfController.class));
    NetconfSession session = controller.getDevicesMap().get(localDeviceId).getSession();

    String reply;/*from   ww w.ja va  2 s  . c  o m*/
    try {
        reply = session.get(requestBuilder(REQ_LLDP_NBR_INFO));
    } catch (IOException e) {
        throw new RuntimeException(new NetconfException(FAILED_CFG, e));
    }
    log.debug("Reply from device {} : {}", localDeviceId, reply);
    Set<LinkAbstraction> linkAbstractions = parseJuniperLldp(
            XmlConfigParser.loadXml(new ByteArrayInputStream(reply.getBytes())));
    log.debug("Set of LinkAbstraction discovered {}", linkAbstractions);

    DeviceService deviceService = this.handler().get(DeviceService.class);
    Set<LinkDescription> descriptions = new HashSet<>();

    //for each lldp neighbor create two LinkDescription
    for (LinkAbstraction linkAbs : linkAbstractions) {

        //find source port by local port name
        Optional<Port> localPort = deviceService.getPorts(localDeviceId).stream().filter(port -> {
            if (linkAbs.localPortName.equals(port.annotations().value(PORT_NAME))) {
                return true;
            }
            return false;
        }).findAny();
        if (!localPort.isPresent()) {
            log.warn("Port name {} does not exist in device {}", linkAbs.localPortName, localDeviceId);
            continue;
        }
        //find destination device by remote chassis id
        com.google.common.base.Optional<Device> dev = Iterables.tryFind(deviceService.getAvailableDevices(),
                input -> input.chassisId().equals(linkAbs.remoteChassisId));

        if (!dev.isPresent()) {
            log.warn("Device with chassis ID {} does not exist", linkAbs.remoteChassisId);
            continue;
        }
        Device remoteDevice = dev.get();

        //find destination port by interface index
        Optional<Port> remotePort = deviceService.getPorts(remoteDevice.id()).stream().filter(port -> {
            if (port.annotations().value("index") != null
                    && Integer.parseInt(port.annotations().value("index")) == linkAbs.remotePortIndex) {
                return true;
            }
            return false;
        }).findAny();
        if (!remotePort.isPresent()) {
            log.warn("Port with index {} does not exist in device {}", linkAbs.remotePortIndex,
                    remoteDevice.id());
            continue;
        }

        JuniperUtils.createBiDirLinkDescription(localDeviceId, localPort.get(), remoteDevice.id(),
                remotePort.get(), descriptions);

    }
    return descriptions;
}

From source file:org.eclipse.osee.orcs.db.internal.search.engines.ArtifactQuerySqlContextFactoryImpl.java

private IOseeBranch getBranchToSearch(QueryData queryData) throws OseeCoreException {
    IOseeBranch branch = null;//from  ww w .j  av a 2s .co  m

    Iterable<? extends Criteria> criterias = queryData.getAllCriteria();
    Optional<? extends Criteria> item = Iterables.tryFind(criterias, new Predicate<Criteria>() {

        @Override
        public boolean apply(Criteria criteria) {
            return HasBranch.class.isAssignableFrom(criteria.getClass());
        }

    });
    if (item.isPresent()) {
        HasBranch criteria = (HasBranch) item.get();
        branch = criteria.getBranch();
    }
    return branch;
}

From source file:org.n52.sos.ogc.sensorML.AbstractSensorML.java

public Optional<SmlIdentifier> findIdentification(Predicate<SmlIdentifier> predicate) {
    if (isSetIdentifications()) {
        return Iterables.tryFind(getIdentifications(), predicate);
    }//from ww  w  .  ja  v a2s .  co  m
    return Optional.absent();
}

From source file:org.zanata.workflow.ClientWorkFlow.java

public boolean isPushSuccessful(List<String> output) {
    Optional<String> successOutput = Iterables.tryFind(output, input -> input.contains("BUILD SUCCESS"));
    return successOutput.isPresent();
}

From source file:com.brighttag.agathon.security.ec2.Ec2SecurityGroupService.java

private Optional<SecurityGroup> getSecurityGroup(String groupName, String dataCenter) {
    DescribeSecurityGroupsResult result = client(dataCenter).describeSecurityGroups();
    // Specifying non-existent group in the request throws exception. Request all and filter instead.
    return Iterables.tryFind(result.getSecurityGroups(), withGroupName(groupName));
}

From source file:com.streamreduce.rest.resource.api.SearchMessageResource.java

/**
 * Compresses the values in a Map&lt;String,Collection&lt;String&gt;&gt; to Strings by selecting the first valid
 * value in the Collection.  This method is presumed to only be called with the value of UriInfo.getQueryParameters.
 *
 * @param map/*from  ww w  .j  a va 2s. com*/
 * @return
 */
private Map<String, String> flattenValues(MultivaluedMap<String, String> map) {
    HashMap<String, String> newMap = new HashMap<>();
    for (String key : map.keySet()) {
        Collection<String> value = map.get(key);
        Optional<String> possibleFind = Iterables.tryFind(value, new Predicate<String>() {
            @Override
            public boolean apply(@Nullable String input) {
                return (input != null && StringUtils.isNotBlank(input));
            }
        });
        if (possibleFind.isPresent()) {
            newMap.put(key, possibleFind.get());
        }
    }
    return newMap;
}