Example usage for com.google.common.collect Collections2 transform

Introduction

In this page you can find the example usage for com.google.common.collect Collections2 transform.

Prototype

public static <F, T> Collection<T> transform(Collection<F> fromCollection, Function<? super F, T> function)

Source Link

Document

Returns a collection that applies function to each element of fromCollection .

Usage

From source file:org.easyrec.controller.aop.LoggedInCheckAspect.java

private void initPath(HttpServletRequest request) {
    localName = request.getLocalName();//ww w .  j  a v  a  2s .  co  m
    localName = localName.equals("0.0.0.0") ? "localhost" : localName;
    this.webappPath = request.getContextPath();
    this.extendedWebAppPath = request.getScheme() + "://" + localName + ":" + request.getLocalPort()
            + webappPath;

    PUBLIC_SITES = Sets.newHashSet(Collections2.transform(PUBLIC_SITES, new Function<String, String>() {
        public String apply(@Nullable String input) {
            StringBuilder result = new StringBuilder(webappPath);
            result.append('/');
            result.append(input);

            return result.toString();
        }
    }));
}

From source file:com.hortonworks.streamline.streams.layout.storm.WindowRuleBoltFluxComponent.java

private String addWindowConfig() {
    String windowId = "window" + UUID_FOR_COMPONENTS;
    String windowClassName = "com.hortonworks.streamline.streams.layout.component.rule.expression.Window";
    ObjectMapper mapper = new ObjectMapper();
    String windowJson = null;/*from   w  w w  . j  a  v a 2  s .  com*/
    try {
        Set<Window> windows = new HashSet<>(
                Collections2.transform(rulesProcessor.getRules(), new Function<Rule, Window>() {
                    @Override
                    public Window apply(Rule input) {
                        return input.getWindow();
                    }
                }));
        if (windows.size() != 1) {
            throw new IllegalArgumentException(
                    "All the rules in a windowed rule bolt should have the same window config.");
        }
        windowJson = mapper.writeValueAsString(windows.iterator().next());
    } catch (JsonProcessingException e) {
        log.error("Error creating json config string for RulesProcessor", e);
    }
    List<String> constructorArgs = new ArrayList<>();
    constructorArgs.add(windowJson);
    this.addToComponents(this.createComponent(windowId, windowClassName, null, constructorArgs, null));
    return windowId;
}

From source file:org.eclipse.smarthome.core.common.registry.AbstractManagedProvider.java

@Override
public Collection<E> getAll() {
    final Function<String, E> toElementList = new Function<String, E>() {
        @Override//  www  . j ava 2 s.co  m
        public E apply(String elementKey) {
            PE persistableElement = storage.get(elementKey);
            if (persistableElement != null) {
                return toElement(elementKey, persistableElement);
            } else {
                return null;
            }
        }
    };

    Collection<String> keys = storage.getKeys();
    Collection<E> elements = Collections2.filter(Collections2.transform(keys, toElementList),
            Predicates.notNull());

    return ImmutableList.copyOf(elements);
}

From source file:blue.lapis.pore.impl.PoreChunk.java

@Override
public Entity[] getEntities() {
    Collection<org.spongepowered.api.entity.Entity> entities = getHandle().getEntities();
    Entity[] bukkitEntities = new Entity[entities.size()];
    Collections2.transform(entities, new Function<org.spongepowered.api.entity.Entity, Entity>() {
        @Override//from  ww  w.j a v a  2 s .  c  o m
        public Entity apply(org.spongepowered.api.entity.Entity input) {
            return PoreEntity.of(input);
        }
    }).toArray(bukkitEntities);
    return bukkitEntities;
}

From source file:com.payu.ratel.client.inmemory.RatelServerFetcher.java

@Override
public Collection<String> getServiceNames() {
    return Collections2.transform(getAllServiceInstances(), new Function<ServiceDescriptor, String>() {

        @Override//  ww  w. j  a  v  a 2s.c  o  m
        public String apply(ServiceDescriptor input) {
            return input.getName();
        }
    });
}

From source file:com.ning.billing.invoice.api.svcs.DefaultInvoiceInternalApi.java

@Override
public Collection<Invoice> getInvoicesByAccountId(final UUID accountId, final InternalTenantContext context) {
    return Collections2.transform(dao.getInvoicesByAccount(accountId, context),
            new Function<InvoiceModelDao, Invoice>() {
                @Override/*from  w ww  .j  av a  2s.c om*/
                public Invoice apply(final InvoiceModelDao input) {
                    return new DefaultInvoice(input);
                }
            });
}

From source file:org.zanata.model.HPerson.java

@Transient
public Set<HProject> getMaintainerProjects() {
    Set<HProjectMember> maintainerMemberships = Sets.filter(getProjectMemberships(),
            HProjectMember.IS_MAINTAINER);
    Collection<HProject> projects = Collections2.transform(maintainerMemberships, HProjectMember.TO_PROJECT);
    return ImmutableSet.copyOf(projects);
}

From source file:org.apache.marmotta.kiwi.ehcache.util.CacheMap.java

@Override
public Set<Entry<K, V>> entrySet() {
    return ImmutableSet.copyOf(Collections2.transform(delegate.getKeys(), new Function<K, Entry<K, V>>() {
        @Override//  w ww  . j av  a2s.  com
        public Entry<K, V> apply(final K input) {
            final Element e = delegate.get(input);
            return new Entry<K, V>() {
                @Override
                public K getKey() {
                    return input;
                }

                @Override
                public V getValue() {
                    return (V) e.getObjectValue();
                }

                @Override
                public V setValue(V v) {
                    delegate.put(new Element(input, v));
                    return (V) e.getObjectValue();
                }
            };
        }
    }));
}

From source file:com.netflix.raigad.identity.EurekaHostsSupplier.java

@Override
public Supplier<List<Host>> getSupplier(final String clusterName) {
    return new Supplier<List<Host>>() {

        @Override//from w  w  w .ja v  a  2 s .c om
        public List<Host> get() {

            if (discoveryClient == null) {
                LOG.error("Discovery client cannot be null");
                throw new RuntimeException("EurekaHostsSupplier needs a non-null DiscoveryClient");
            }

            LOG.info("Raigad fetching instance list for app: " + clusterName);

            Application app = discoveryClient.getApplication(clusterName.toUpperCase());
            List<Host> hosts = new ArrayList<Host>();

            if (app == null) {
                LOG.warn("Cluster '{}' not found in eureka", clusterName);
                return hosts;
            }

            List<InstanceInfo> ins = app.getInstances();

            if (ins == null || ins.isEmpty()) {
                LOG.warn("Cluster '{}' found in eureka but has no instances", clusterName);
                return hosts;
            }

            hosts = Lists.newArrayList(
                    Collections2.transform(Collections2.filter(ins, new Predicate<InstanceInfo>() {
                        @Override
                        public boolean apply(InstanceInfo input) {
                            return input.getStatus() == InstanceInfo.InstanceStatus.UP;
                        }
                    }), new Function<InstanceInfo, Host>() {
                        @Override
                        public Host apply(InstanceInfo info) {
                            String[] parts = StringUtils.split(StringUtils.split(info.getHostName(), ".")[0],
                                    '-');

                            Host host = new Host(info.getHostName(), info.getPort())
                                    .addAlternateIpAddress(StringUtils
                                            .join(new String[] { parts[1], parts[2], parts[3], parts[4] }, "."))
                                    .addAlternateIpAddress(info.getIPAddr()).setId(info.getId());

                            try {
                                if (info.getDataCenterInfo() instanceof AmazonInfo) {
                                    AmazonInfo amazonInfo = (AmazonInfo) info.getDataCenterInfo();
                                    host.setRack(amazonInfo.get(MetaDataKey.availabilityZone));
                                }
                            } catch (Throwable t) {
                                LOG.error("Error getting rack for host " + host.getName(), t);
                            }

                            return host;
                        }
                    }));

            LOG.info("Raigad found hosts from eureka - num hosts: " + hosts.size());

            return hosts;
        }
    };
}

From source file:edu.umn.msi.tropix.client.directory.impl.UserIterableImpl.java

public Iterator<GridUser> iterator() {
    final Collection<GridUser> users = new LinkedList<GridUser>();
    final Multimap<String, Person> persons = personSupplier.get();
    for (String institution : persons.keySet()) {
        Iterables.addAll(users,//from  ww w.  ja v a  2s  .c om
                Iterables.filter(
                        Collections2.transform(persons.get(institution), new PersonFunction(institution)),
                        Predicates.not(Predicates.isNull())));
    }
    for (final GridUser user : users) {
        gridUserMap.put(user.getGridId(), user);
    }
    return users.iterator();
}