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:com.netflix.astyanax.util.StringUtils.java

public static <T> String joinClassGettersValues(final T object, String name, Class<T> clazz) {
    Method[] methods = clazz.getDeclaredMethods();

    StringBuilder sb = new StringBuilder();
    sb.append(name).append("[");
    sb.append(org.apache.commons.lang.StringUtils.join(Collections2.transform(
            // Filter any field that does not start with lower case
            // (we expect constants to start with upper case)
            Collections2.filter(Arrays.asList(methods), new Predicate<Method>() {
                @Override/*from www. j a va 2  s.c  o m*/
                public boolean apply(Method method) {
                    if ((method.getModifiers() & Modifier.STATIC) == Modifier.STATIC)
                        return false;
                    return org.apache.commons.lang.StringUtils.startsWith(method.getName(), "get");
                }
            }),
            // Convert field to "name=value". value=*** on error
            new Function<Method, String>() {
                @Override
                public String apply(Method method) {
                    Object value;
                    try {
                        value = method.invoke(object);
                    } catch (Exception e) {
                        value = "***";
                    }
                    return org.apache.commons.lang.StringUtils.uncapitalize(
                            org.apache.commons.lang.StringUtils.substring(method.getName(), 3)) + "=" + value;
                }
            }), ","));
    sb.append("]");

    return sb.toString();
}

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From source file:fr.vberetti.cassandra.metamodel.plugin.GenerateMojo.java

@Override
public void execute() throws MojoExecutionException, MojoFailureException {
    MetamodelGenerator generator = new MetamodelGenerator();
    generator.setBasePackage(basePackage);
    List<String> cqlFilePaths = Lists
            .newArrayList(Collections2.transform(cqlFiles, new Function<File, String>() {
                @Override//from   w  ww .  j a v a  2  s  .  c  o m
                public String apply(File input) {
                    return input.getAbsolutePath();
                }
            }));
    generator.setCqlFiles(cqlFilePaths);
    generator.getIncludeTables().addAll(includeTables);
    generator.setKeyspace(keyspace);
    generator.setOutputDirectory(outputDirectory);

    try {
        generator.generate();
    } catch (ConfigurationException | TTransportException | IOException | InterruptedException e) {
        throw new MojoFailureException("Metamodel generation failed " + e.getMessage());
    }

    getLog().info("Adding generation output directory as source ...");
    project.addCompileSourceRoot(outputDirectory);
}

---

From source file:org.entityapi.api.entity.mind.Attribute.java

protected T getNewEvent(final Object... args) {
    Type paramType = this.getClass().getGenericSuperclass();
    Class<?> paramClass = (Class<?>) paramType;

    Type paramEventType = paramClass.getGenericSuperclass();
    Class<T> event = (Class<T>) ((ParameterizedType) paramEventType).getActualTypeArguments()[0];

    ClassTemplate<T> template = new Reflection().reflect(event);
    final Class[] arguments = Collections2.transform(Arrays.asList(args), new Function<Object, Class>() {
        @Override//  ww  w .  j a  v  a  2 s  .co  m
        public Class apply(@Nullable Object o) {
            if (o instanceof Class)
                return (Class) o;
            else
                return o.getClass();
        }
    }).toArray(new Class[args.length]);

    try {

        List<SafeConstructor<T>> candidates = template.getSafeConstructors(new AbstractMatcher<Constructor>() {
            @Override
            public boolean matches(Constructor constructor) {
                if (constructor.getParameterTypes().length != args.length)
                    return false;

                Class[] args = constructor.getParameterTypes();
                for (int i = 0; i < args.length; i++) {
                    if (!args[i].isAssignableFrom(arguments[i]))
                        return false;
                }
                return true;
            }
        });

        SafeConstructor<T> eventConstructor;
        if (candidates.size() > 0) {
            eventConstructor = candidates.get(0);
        } else {
            throw new IllegalStateException(); // Will throw a "proper" exception
        }

        if (eventConstructor != null)
            return eventConstructor.getAccessor().invoke(args);

    } catch (Exception e) { // TODO: Should we be throwing exceptions?
        if (args.length > 0) {
            StringBuilder argBuilder = new StringBuilder(16 * args.length);
            boolean isFirst = true;
            for (Class<?> arg : arguments) {
                if (isFirst) {
                    argBuilder.append(arg.getCanonicalName());
                    isFirst = false;
                } else {
                    argBuilder.append(", " + arg.getCanonicalName());
                }
            }

            throw new RuntimeException("Failed to get the right constructor! (Event class: "
                    + event.getCanonicalName() + "\nArguments: " + argBuilder.toString());
        } else {
            throw new RuntimeException(
                    "Failed to get the right constructor! (Event class: " + event.getCanonicalName() + ")");
        }
    }

    return null;
}

---

From source file:org.ow2.play.governance.platform.user.service.rest.TopicService.java

@Override
public Response topics() {

    // filter the topics based on the user permissions
    // TODO : Topics per user can be found before instead of calling N times the permission checker...
    List<Topic> topics = null;
    try {//  ww  w  .ja  v  a2 s .com
        topics = userResourceAccess.getTopicsForUser(getUser());
    } catch (GovernanceExeption e) {
        e.printStackTrace();
        return error(Status.INTERNAL_SERVER_ERROR, "Can not get topics");

    }

    Collection<org.ow2.play.governance.platform.user.api.rest.bean.Topic> out = Collections2.transform(topics,
            new Function<Topic, org.ow2.play.governance.platform.user.api.rest.bean.Topic>() {
                public org.ow2.play.governance.platform.user.api.rest.bean.Topic apply(Topic input) {
                    org.ow2.play.governance.platform.user.api.rest.bean.Topic topic = new org.ow2.play.governance.platform.user.api.rest.bean.Topic();
                    topic.name = input.getName();
                    topic.ns = input.getNs();
                    topic.prefix = input.getPrefix();
                    topic.resourceUrl = getResourceURI(input);
                    return topic;
                }
            });

    return ok(out.toArray(new org.ow2.play.governance.platform.user.api.rest.bean.Topic[out.size()]));
}

---

From source file:org.mayocat.shop.billing.api.resource.OrderResource.java

@GET
@Authorized//from   w  w w  .j  av  a  2 s.  c  o m
public ResultSetRepresentation<OrderRepresentation> getAllOrders(
        @QueryParam("number") @DefaultValue("50") Integer number,
        @QueryParam("offset") @DefaultValue("0") Integer offset) {

    GeneralSettings settings = configurationService.getSettings(GeneralSettings.class);
    final DateTimeZone tenantTz = DateTimeZone.forTimeZone(settings.getTime().getTimeZone().getValue());
    List<Order> orders = orderStore.get().findAllPaidOrAwaitingPayment(number, offset);

    Collection<OrderRepresentation> representations = Collections2.transform(orders,
            new Function<Order, OrderRepresentation>() {
                public OrderRepresentation apply(final Order order) {
                    return new OrderRepresentation(tenantTz, order);
                }
            });

    Integer total = this.orderStore.get().countAllPaidOrAwaitingPayment();
    ResultSetRepresentation<OrderRepresentation> resultSet = new ResultSetRepresentation<>("/api/orders",
            number, offset, new ArrayList<>(representations), total);

    return resultSet;
}

---

From source file:org.matmaul.freeboxos.fs.FsManager.java

@SuppressWarnings("unchecked")
public FsTask mv(Collection<FileInfo> files, FileInfo dstFolder, String conflictMode) throws FreeboxException {
    JSONObject req = new JSONObject();
    req.put("files", Collections2.transform(files, new Function<FileInfo, String>() {

        public String apply(FileInfo fi) {
            return fi.getPath();
        }//from ww w.  j a va 2s . c  o m
    }));
    req.put("dst", dstFolder.getPath());
    req.put("mode", conflictMode);

    return restManager.post("fs/mv/", restManager.createJsonEntity(req), FsResponses.FsTaskResponse.class);
}

---

From source file:org.gradle.api.tasks.diagnostics.internal.dependencies.RenderableDependencyResult.java

public Set<RenderableDependency> getChildren() {
    return new LinkedHashSet(Collections2.transform(dependency.getSelected().getDependencies(),
            new Function<ResolvedDependencyResult, RenderableDependency>() {
                public RenderableDependency apply(ResolvedDependencyResult input) {
                    return new RenderableDependencyResult(input);
                }//w  ww  . j a  va2s . c  o m
            }));
}

---

From source file:org.mayocat.shop.shipping.store.jdbi.DBICarrierStore.java

public void updateCarrier(Carrier carrier) {
    carrierDAO.begin();// ww  w.ja va 2  s  .  c om
    carrierDAO.update(carrier);
    for (CarrierRule rule : carrier.getRules()) {
        if (carrierDAO.updateRule(carrier.getId(), rule) == 0) {
            carrierDAO.addRule(carrier.getId(), rule);
        }
    }
    Collection<BigDecimal> excluded = Collections2.transform(carrier.getRules(),
            new Function<CarrierRule, BigDecimal>() {
                @Override
                public BigDecimal apply(final CarrierRule rule) {
                    return rule.getUpToValue();
                }
            });
    if (excluded.size() > 0) {
        carrierDAO.removeRules(carrier.getId(), excluded);
    }
    carrierDAO.commit();
}

---

From source file:com.nesscomputing.cache.NamespacedCache.java

/**
 * Set many cache entries with given values and expiration date.  Note that the value byte array
 * is shared, and the cache infrastructure assumes that it owns the passed in byte array.
 * @see NessCache#set(String, Collection)
 *//*from   w  ww.  j a v  a  2  s.  c om*/
public void set(Map<String, byte[]> entries, final DateTime expiry) {
    cache.set(namespace, Collections2.transform(entries.entrySet(),
            new Function<Map.Entry<String, byte[]>, CacheStore<byte[]>>() {
                @Override
                public CacheStore<byte[]> apply(final Entry<String, byte[]> entry) {
                    return CacheStores.fromSharedBytes(entry.getKey(), entry.getValue(), expiry);
                }
            }));
}

---

From source file:org.jetbrains.kotlin.idea.test.DirectiveBasedActionUtils.java

public static void checkAvailableActionsAreExpected(JetFile file,
        Collection<IntentionAction> availableActions) {
    List<String> validActions = Ordering.natural().sortedCopy(Lists
            .newArrayList(InTextDirectivesUtils.findLinesWithPrefixesRemoved(file.getText(), "// ACTION:")));

    Collection<String> actualActions = Ordering.natural().sortedCopy(Lists
            .newArrayList(Collections2.transform(availableActions, new Function<IntentionAction, String>() {
                @Override/* w ww  .ja  v  a  2  s  . co m*/
                public String apply(@Nullable IntentionAction input) {
                    assert input != null;
                    return input.getText();
                }
            })));

    UsefulTestCase.assertOrderedEquals(
            "Some unexpected actions available at current position: %s. Use // ACTION: directive",
            filterOutIrrelevantActions(actualActions), filterOutIrrelevantActions(validActions));
}

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