Examples with Collections java.util.Collections used on opensource projects

Example 31 with Collections

use of java.util.Collections in project component-runtime by Talend.

the class ConfigurationMapper method map.

private Map<String, String> map(final List<ParameterMeta> nestedParameters, final Object instance, final Map<Integer, Integer> indexes) {
    if (nestedParameters == null) {
        return emptyMap();
    }
    return nestedParameters.stream().map(param -> {
        final Object value = getValue(instance, param.getName());
        if (value == null) {
            return Collections.<String, String>emptyMap();
        }
        switch(param.getType()) {
            case OBJECT:
                return map(param.getNestedParameters(), value, indexes);
            case ARRAY:
                final Collection<Object> values = Collection.class.isInstance(value) ? Collection.class.cast(value) : /* array */
                asList(Object[].class.cast(value));
                final int arrayIndex = indexes.keySet().size();
                final AtomicInteger valuesIndex = new AtomicInteger(0);
                final Map<String, String> config = values.stream().map((Object item) -> {
                    indexes.put(arrayIndex, valuesIndex.getAndIncrement());
                    final Map<String, String> res = param.getNestedParameters().stream().filter(ConfigurationMapper::isPrimitive).collect(toMap(p -> evaluateIndexes(p.getPath(), indexes), p -> getValue(item, p.getName()).toString()));
                    res.putAll(map(param.getNestedParameters().stream().filter(p -> !isPrimitive(p)).collect(toList()), item, indexes));
                    return res;
                }).flatMap(m -> m.entrySet().stream()).collect(toMap(Map.Entry::getKey, Map.Entry::getValue));
                // clear index after the end of array handling
                indexes.clear();
                return config;
            default:
                // primitives
                return singletonMap(evaluateIndexes(param.getPath(), indexes), value.toString());
        }
    }).flatMap(m -> m.entrySet().stream()).collect(toMap(Map.Entry::getKey, Map.Entry::getValue));
}

Example 32 with Collections

use of java.util.Collections in project neo4j by neo4j.

the class JoltNodeSerializer method serialize.

@Override
public void serialize(Node node, JsonGenerator generator, SerializerProvider provider) throws IOException {
    generator.writeStartObject(node);
    generator.writeFieldName(Sigil.NODE.getValue());
    generator.writeStartArray();
    generator.writeNumber(node.getId());
    generator.writeStartArray();
    for (Label label : node.getLabels()) {
        generator.writeString(label.name());
    }
    generator.writeEndArray();
    var properties = Optional.ofNullable(node.getAllProperties()).orElseGet(Collections::emptyMap);
    generator.writeStartObject();
    for (var entry : properties.entrySet()) {
        generator.writeFieldName(entry.getKey());
        generator.writeObject(entry.getValue());
    }
    generator.writeEndObject();
    generator.writeEndArray();
    generator.writeEndObject();
}

Example 33 with Collections

use of java.util.Collections in project flink by apache.

the class TaskAsyncCallTest method createTask.

private Task createTask(Class<? extends AbstractInvokable> invokableClass) throws Exception {
    final TestingClassLoaderLease classLoaderHandle = TestingClassLoaderLease.newBuilder().setGetOrResolveClassLoaderFunction((permanentBlobKeys, urls) -> TestingUserCodeClassLoader.newBuilder().setClassLoader(new TestUserCodeClassLoader()).build()).build();
    ResultPartitionConsumableNotifier consumableNotifier = new NoOpResultPartitionConsumableNotifier();
    PartitionProducerStateChecker partitionProducerStateChecker = mock(PartitionProducerStateChecker.class);
    Executor executor = mock(Executor.class);
    TaskMetricGroup taskMetricGroup = UnregisteredMetricGroups.createUnregisteredTaskMetricGroup();
    JobInformation jobInformation = new JobInformation(new JobID(), "Job Name", new SerializedValue<>(new ExecutionConfig()), new Configuration(), Collections.emptyList(), Collections.emptyList());
    TaskInformation taskInformation = new TaskInformation(new JobVertexID(), "Test Task", 1, 1, invokableClass.getName(), new Configuration());
    return new Task(jobInformation, taskInformation, new ExecutionAttemptID(), new AllocationID(), 0, 0, Collections.<ResultPartitionDeploymentDescriptor>emptyList(), Collections.<InputGateDeploymentDescriptor>emptyList(), mock(MemoryManager.class), mock(IOManager.class), shuffleEnvironment, new KvStateService(new KvStateRegistry(), null, null), mock(BroadcastVariableManager.class), new TaskEventDispatcher(), ExternalResourceInfoProvider.NO_EXTERNAL_RESOURCES, new TestTaskStateManager(), mock(TaskManagerActions.class), mock(InputSplitProvider.class), mock(CheckpointResponder.class), new NoOpTaskOperatorEventGateway(), new TestGlobalAggregateManager(), classLoaderHandle, mock(FileCache.class), new TestingTaskManagerRuntimeInfo(), taskMetricGroup, consumableNotifier, partitionProducerStateChecker, executor);
}

Example 34 with Collections

use of java.util.Collections in project flink by apache.

the class ExecutingTest method testFalseReportsViaUpdateTaskExecutionStateAreIgnored.

@Test
public void testFalseReportsViaUpdateTaskExecutionStateAreIgnored() throws Exception {
    try (MockExecutingContext ctx = new MockExecutingContext()) {
        MockExecutionGraph returnsFailedStateExecutionGraph = new MockExecutionGraph(false, Collections::emptyList);
        Executing exec = new ExecutingStateBuilder().setExecutionGraph(returnsFailedStateExecutionGraph).build(ctx);
        Exception exception = new RuntimeException();
        TestingAccessExecution execution = TestingAccessExecution.newBuilder().withExecutionState(ExecutionState.FAILED).withErrorInfo(new ErrorInfo(exception, System.currentTimeMillis())).build();
        returnsFailedStateExecutionGraph.registerExecution(execution);
        TaskExecutionStateTransition taskExecutionStateTransition = createFailingStateTransition(execution.getAttemptId(), exception);
        exec.updateTaskExecutionState(taskExecutionStateTransition);
        ctx.assertNoStateTransition();
    }
}

Example 35 with Collections

use of java.util.Collections in project druid by druid-io.

the class LookupSegmentWrangler method getSegmentsForIntervals.

@Override
public Iterable<Segment> getSegmentsForIntervals(final DataSource dataSource, final Iterable<Interval> intervals) {
    final LookupDataSource lookupDataSource = (LookupDataSource) dataSource;
    final Optional<LookupExtractorFactoryContainer> maybeContainer = lookupProvider.get(lookupDataSource.getLookupName());
    return maybeContainer.map(container -> Collections.<Segment>singletonList(new LookupSegment(lookupDataSource.getLookupName(), container.getLookupExtractorFactory()))).orElse(Collections.emptyList());
}