Example usage for java.lang Iterable iterator

List of usage examples for java.lang Iterable iterator

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Introduction

In this page you can find the example usage for java.lang Iterable iterator.

Prototype

Iterator<T> iterator();

Source Link

Document

Returns an iterator over elements of type T .

Usage

From source file:com.galeoconsulting.leonardinius.api.impl.ServletVelocityHelperImpl.java

@Override
public SessionBean getSessionBean(final String sessionId) {
    if (StringUtils.isBlank(sessionId)) {
        return null;
    }/*  w w  w .  j a v  a2s.  c  o  m*/

    Iterable<SessionBean> iterable = Iterables.filter(getAllSessionBeans(), new Predicate<SessionBean>() {
        @Override
        public boolean apply(@Nullable SessionBean input) {
            return StringUtils.equals(sessionId, input.getSessionId());
        }
    });

    return iterable.iterator().hasNext() ? iterable.iterator().next() : null;
}

From source file:eu.stratosphere.util.dag.GraphModule.java

private List<Node> getUnmatchingNode(final Iterable<? extends Node> nodes1,
        final Iterable<? extends Node> nodes2, final IdentitySet<Node> seen) {
    final Iterator<? extends Node> iterator1 = nodes1.iterator();
    final Iterator<? extends Node> iterator2 = nodes2.iterator();

    while (iterator1.hasNext() && iterator2.hasNext()) {
        final Node node1 = iterator1.next();
        final Node node2 = iterator2.next();

        if (node1 == node2)
            continue;

        if (node1 == null || !node1.equals(node2))
            return Arrays.asList(node1, node2);

        final List<Node> unmatching = this.getUnmatchingNode(this.navigator.getConnectedNodes(node1),
                this.navigator.getConnectedNodes(node2), seen);
        if (!unmatching.isEmpty())
            return unmatching;
    }//from  w  w w  . j a  v a  2s . c o m

    return new ArrayList<Node>();
}

From source file:com.ailk.oci.ocnosql.tools.load.single.SingleColumnReducer.java

@Override
protected void reduce(ImmutableBytesWritable row, Iterable<TextArrayWritable> texts, Context context)
        throws java.io.IOException, InterruptedException {
    //???//from  w w w . j av  a2 s  . c  om
    String columName = curTime;

    map.clear();

    Put put = new Put(row.get());
    Iterator<TextArrayWritable> iter = texts.iterator();
    TextArrayWritable latterText = null;
    try {
        int i = 0;
        boolean isFirst = false; //?
        while (iter.hasNext()) {
            latterText = ((TextArrayWritable) iter.next()).clone();
            if (i == 0) {
                isFirst = true;
            } else {
                isFirst = false;
            }

            String dealStr = compressor.compress(latterText, isFirst, context.getConfiguration());
            if (!StringUtils.isEmpty(dealStr)) {
                sb.append(dealStr);
            }
            sb = sb.append(record_separator);
            i++;
        }
        //?
        sb.deleteCharAt(sb.lastIndexOf(record_separator));
        put.add(family, columName.getBytes(), Bytes.toBytes(sb.toString()));
        sb.setLength(0);

        for (List<KeyValue> kvList : put.getFamilyMap().values()) {
            for (KeyValue kv : kvList) {
                map.add(kv);
            }
        }

        for (KeyValue kv : map) {
            context.write(row, kv);
        }
    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

From source file:com.github.rvesse.airline.model.OptionMetadata.java

public OptionMetadata(Iterable<OptionMetadata> options) {
    if (options == null)
        throw new NullPointerException("options cannot be null");
    if (!options.iterator().hasNext())
        throw new IllegalArgumentException("options cannot be empty");

    OptionMetadata option = options.iterator().next();

    this.optionType = option.optionType;
    this.options = option.options;
    this.title = option.title;
    this.description = option.description;
    this.arity = option.arity;
    this.hidden = option.hidden;
    this.overrides = option.overrides;
    this.sealed = option.sealed;
    this.restrictions = option.restrictions;

    Set<Accessor> accessors = new LinkedHashSet<Accessor>();
    for (OptionMetadata other : options) {
        if (!option.equals(other))
            throw new IllegalArgumentException(
                    String.format("Duplicate options definitions: %s, %s", option, other));

        accessors.addAll(other.getAccessors());
    }//  w w  w  .j ava 2 s. c  o m
    this.accessors = SetUtils.unmodifiableSet(accessors);
}

From source file:com.google.gerrit.server.mail.OutgoingEmail.java

public String joinStrings(Iterable<Object> in, String joiner) {
    return joinStrings(in.iterator(), joiner);
}

From source file:com.insightml.evaluation.simulation.CrossValidation.java

private <E, P> SimulationResults<E, P>[] runCv(final Iterable<I> instances,
        final SimulationSetup<I, E, P> setup) {
    final ILearnerPipeline<I, P>[] learner = setup.getLearner();
    final IJobBatch<Predictions<E, P>[]> batch = ((SimulationSetupImpl) setup).createBatch();
    final int numLabels = Check.num(instances.iterator().next().getExpected().length, 1, 10);
    final Integer labelIndex = ((SimulationSetupImpl) setup).getLabelIndex();
    final FeaturesConfig<I, P> config = setup.getConfig();
    for (int repetition = 0; repetition < repetitions; ++repetition) {
        // repetition == 0 ? instances : instances.randomize(random);
        final Iterable<I> shuffled = instances;
        for (int fold = 1; fold <= folds; ++fold) {
            final int actualFold = fold + repetition * folds;
            if (labelIndex == null) {
                for (int index = 0; index < numLabels; ++index) {
                    batch.addJob(new Fold<I, E, P>(config, shuffled, learner, fold, actualFold, folds, index));
                }/*from  w  w w .  j  a va2s  . c o  m*/
            } else {
                batch.addJob(new Fold<I, E, P>(config, shuffled, learner, fold, actualFold, folds, labelIndex));
            }
        }
    }
    final SimulationResultsBuilder<E, P>[] builders = new SimulationResultsBuilder[learner.length];
    for (int i = 0; i < learner.length; ++i) {
        builders[i] = new SimulationResultsBuilder<>(learner[i].getName(), folds * repetitions, numLabels,
                setup);
    }
    for (final Predictions<E, P>[] preds : batch.run()) {
        for (int i = 0; i < preds.length; ++i) {
            builders[i].add(preds[i]);
        }
    }
    final SimulationResults<E, P>[] results = new SimulationResults[learner.length];
    for (int i = 0; i < results.length; ++i) {
        results[i] = builders[i].build();
    }
    return results;
}

From source file:io.druid.query.timeboundary.TimeBoundaryQueryRunnerTest.java

@Test
@SuppressWarnings("unchecked")
public void testTimeBoundary() {
    TimeBoundaryQuery timeBoundaryQuery = Druids.newTimeBoundaryQueryBuilder().dataSource("testing").build();
    Assert.assertFalse(timeBoundaryQuery.hasFilters());
    HashMap<String, Object> context = new HashMap<String, Object>();
    Iterable<Result<TimeBoundaryResultValue>> results = Sequences.toList(runner.run(timeBoundaryQuery, context),
            Lists.<Result<TimeBoundaryResultValue>>newArrayList());
    TimeBoundaryResultValue val = results.iterator().next().getValue();
    DateTime minTime = val.getMinTime();
    DateTime maxTime = val.getMaxTime();

    Assert.assertEquals(new DateTime("2011-01-12T00:00:00.000Z"), minTime);
    Assert.assertEquals(new DateTime("2011-04-15T00:00:00.000Z"), maxTime);
}

From source file:io.druid.query.timeboundary.TimeBoundaryQueryRunnerTest.java

@Test
@SuppressWarnings("unchecked")
public void testTimeBoundaryMax() {
    TimeBoundaryQuery timeBoundaryQuery = Druids.newTimeBoundaryQueryBuilder().dataSource("testing")
            .bound(TimeBoundaryQuery.MAX_TIME).build();
    Map<String, Object> context = new MapMaker().makeMap();
    context.put(Result.MISSING_SEGMENTS_KEY, Lists.newArrayList());
    Iterable<Result<TimeBoundaryResultValue>> results = Sequences.toList(runner.run(timeBoundaryQuery, context),
            Lists.<Result<TimeBoundaryResultValue>>newArrayList());
    TimeBoundaryResultValue val = results.iterator().next().getValue();
    DateTime minTime = val.getMinTime();
    DateTime maxTime = val.getMaxTime();

    Assert.assertNull(minTime);/*from   ww  w  .j  a v a 2s.c  o  m*/
    Assert.assertEquals(new DateTime("2011-04-15T00:00:00.000Z"), maxTime);
}

From source file:io.druid.query.timeboundary.TimeBoundaryQueryRunnerTest.java

@Test
@SuppressWarnings("unchecked")
public void testTimeBoundaryMin() {
    TimeBoundaryQuery timeBoundaryQuery = Druids.newTimeBoundaryQueryBuilder().dataSource("testing")
            .bound(TimeBoundaryQuery.MIN_TIME).build();
    Map<String, Object> context = new MapMaker().makeMap();
    context.put(Result.MISSING_SEGMENTS_KEY, Lists.newArrayList());
    Iterable<Result<TimeBoundaryResultValue>> results = Sequences.toList(runner.run(timeBoundaryQuery, context),
            Lists.<Result<TimeBoundaryResultValue>>newArrayList());
    TimeBoundaryResultValue val = results.iterator().next().getValue();
    DateTime minTime = val.getMinTime();
    DateTime maxTime = val.getMaxTime();

    Assert.assertEquals(new DateTime("2011-01-12T00:00:00.000Z"), minTime);
    Assert.assertNull(maxTime);/*from w  w w .  j a v  a  2  s  . c o  m*/
}

From source file:com.artistech.protobuf.TuioProtoConverter.java

@Override
public GeneratedMessage.Builder convertToProtobuf(Object obj) {
    GeneratedMessage.Builder builder;//from ww  w.  j  a  v a  2s .  c  om

    if (obj.getClass().getName().equals(TUIO.TuioTime.class.getName())) {
        builder = TuioProtos.Time.newBuilder();
    } else if (obj.getClass().getName().equals(TUIO.TuioCursor.class.getName())) {
        builder = TuioProtos.Cursor.newBuilder();
    } else if (obj.getClass().getName().equals(TUIO.TuioObject.class.getName())) {
        builder = TuioProtos.Object.newBuilder();
    } else if (obj.getClass().getName().equals(TUIO.TuioBlob.class.getName())) {
        builder = TuioProtos.Blob.newBuilder();
    } else if (obj.getClass().getName().equals(TUIO.TuioPoint.class.getName())) {
        builder = TuioProtos.Point.newBuilder();
    } else {
        return null;
    }

    try {
        PropertyDescriptor[] objProps = Introspector.getBeanInfo(obj.getClass()).getPropertyDescriptors();
        BeanInfo beanInfo = Introspector.getBeanInfo(builder.getClass());
        PropertyDescriptor[] builderProps = beanInfo.getPropertyDescriptors();
        Method[] methods = builder.getClass().getMethods();
        for (PropertyDescriptor prop1 : objProps) {
            for (PropertyDescriptor prop2 : builderProps) {
                if (prop1.getName().equals(prop2.getName())) {
                    Method readMethod = prop1.getReadMethod();
                    ArrayList<Method> methodsToTry = new ArrayList<>();
                    for (Method m : methods) {
                        if (m.getName().equals(readMethod.getName().replaceFirst("get", "set"))) {
                            methodsToTry.add(m);
                        }
                    }

                    for (Method setMethod : methodsToTry) {
                        try {
                            if (Iterable.class.isAssignableFrom(readMethod.getReturnType())) {
                                if (DeepCopy) {
                                    ArrayList<Method> methodsToTry2 = new ArrayList<>();
                                    for (Method m : methods) {
                                        if (m.getName()
                                                .equals(readMethod.getName().replaceFirst("get", "add"))) {
                                            methodsToTry2.add(m);
                                        }
                                    }

                                    boolean success = false;
                                    for (Method setMethod2 : methodsToTry2) {
                                        Iterable iter = (Iterable) readMethod.invoke(obj);
                                        Iterator it = iter.iterator();
                                        while (it.hasNext()) {
                                            Object o = it.next();
                                            //call set..
                                            for (ProtoConverter converter : services) {
                                                if (converter.supportsConversion(o)) {
                                                    try {
                                                        GeneratedMessage.Builder convertToProtobuf = converter
                                                                .convertToProtobuf(o);
                                                        setMethod2.invoke(builder, convertToProtobuf);
                                                        success = true;
                                                        break;
                                                    } catch (IllegalAccessException | IllegalArgumentException
                                                            | InvocationTargetException ex) {

                                                    }
                                                }
                                            }
                                        }
                                        if (success) {
                                            break;
                                        }
                                    }
                                }
                            } else {
                                boolean primitiveOrWrapper = ClassUtils
                                        .isPrimitiveOrWrapper(readMethod.getReturnType());

                                if (primitiveOrWrapper) {
                                    setMethod.invoke(builder, readMethod.invoke(obj));
                                } else {
                                    Object invoke = readMethod.invoke(obj);
                                    com.google.protobuf.GeneratedMessage.Builder val = convertToProtobuf(
                                            invoke);

                                    setMethod.invoke(builder, val);
                                    break;
                                }
                            }
                        } catch (IllegalAccessException | IllegalArgumentException
                                | InvocationTargetException ex) {
                            //                            Logger.getLogger(TuioProtoConverter.class.getName()).log(Level.SEVERE, null, ex);
                        }
                        break;
                    }
                }
            }
        }
    } catch (IntrospectionException ex) {
        logger.fatal(ex);
    }

    return builder;
}