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

Introduction

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

Prototype

public static <F, T> Iterator<T> transform(final Iterator<F> fromIterator,
        final Function<? super F, ? extends T> function)

Source Link

Document

Returns an iterator that applies function to each element of fromIterator .

Usage

From source file:com.nirima.jenkins.repo.project.ProjectsElement.java

public Collection<ProjectElement> getChildren() {

    List<ProjectElement> elements = Lists.newArrayList(Iterators.transform(
            Jenkins.getInstance().getAllItems(BuildableItemWithBuildWrappers.class).iterator(),
            new Function<BuildableItemWithBuildWrappers, ProjectElement>() {
                public ProjectElement apply(BuildableItemWithBuildWrappers from) {
                    return new ProjectElement(ProjectsElement.this, from);
                }/*from w  w w.  j a va 2s  . co  m*/
            }));

    return elements;
}

From source file:de.unijena.bioinf.FragmentationTreeConstruction.model.DecompositionList.java

public Collection<MolecularFormula> getFormulas() {
    return new AbstractCollection<MolecularFormula>() {
        @Override/*from   www. j  ava 2  s . c o m*/
        public Iterator<MolecularFormula> iterator() {
            return Iterators.transform(decompositions.iterator(),
                    new Function<ScoredMolecularFormula, MolecularFormula>() {
                        @Override
                        public MolecularFormula apply(ScoredMolecularFormula input) {
                            return input.getFormula();
                        }
                    });
        }

        @Override
        public int size() {
            return decompositions.size();
        }
    };
}

From source file:org.apache.gobblin.util.request_allocation.StringRequestor.java

@Override
public Iterator<StringRequest> getRequests(Comparator<StringRequest> prioritizer) throws IOException {
    List<StringRequest> requests = Lists
            .newArrayList(Iterators.transform(this.strings.iterator(), new Function<String, StringRequest>() {
                @Override//from w w  w .j a v  a  2s.  c o m
                public StringRequest apply(String input) {
                    return new StringRequest(StringRequestor.this, input);
                }
            }));
    Collections.sort(requests, prioritizer);
    return requests.iterator();
}

From source file:org.grouplens.lenskit.collections.CopyingFastCollection.java

@Override
public Iterator<E> iterator() {
    return Iterators.transform(fastIterator(), copyFunction);
}

From source file:com.eightkdata.mongowp.bson.impl.MapBasedBsonDocument.java

@Override
public UnmodifiableIterator<Entry<?>> iterator() {
    return Iterators.unmodifiableIterator(
            Iterators.transform(map.entrySet().iterator(), AbstractBsonDocument.FromEntryMap.INSTANCE));
}

From source file:org.polymap.model2.engine.ManyAssociationImpl.java

@Override
public Iterator<T> iterator() {
    return Iterators.transform(storeProp.iterator(), new Function<Object, T>() {

        UnitOfWork uow = context.getUnitOfWork();

        Class<? extends Entity> entityType = info().getType();

        @Override/*from   w w w. j  a v  a 2 s . c o  m*/
        public T apply(Object id) {
            return (T) uow.entity(entityType, id);
        }
    });
}

From source file:eu.interedition.collatex.neo4j.Neo4jVariantGraphTransposition.java

@Override
public Iterator<VariantGraph.Vertex> iterator() {
    return Iterators.transform(node.getRelationships(Neo4jGraphRelationships.TRANSPOSITION).iterator(),
            new Function<Relationship, VariantGraph.Vertex>() {
                @Override//from   w w  w.j a  va2s.  c  o m
                public VariantGraph.Vertex apply(@Nullable Relationship relationship) {
                    return graph.vertexWrapper.apply(relationship.getEndNode());
                }
            });
}

From source file:eu.stratosphere.sopremo.type.PullingStreamNode.java

@SuppressWarnings("unchecked")
public void setSource(final IStreamNode<?> node) {
    this.source = (Iterator<IJsonNode>) node.iterator();
    this.iterator = Iterators.transform(this.source, new Function<IJsonNode, T>() {
        @Override/* w w w .  j  a  v  a 2 s. co  m*/
        public T apply(final IJsonNode inputNode) {
            return (T) PullingStreamNode.this.expression.evaluate(inputNode);
        }
    });
}

From source file:org.apache.accumulo.core.util.shell.commands.NamespacesCommand.java

@Override
public int execute(final String fullCommand, final CommandLine cl, final Shell shellState)
        throws AccumuloException, AccumuloSecurityException, IOException {
    Map<String, String> namespaces = new TreeMap<String, String>(
            shellState.getConnector().namespaceOperations().namespaceIdMap());

    Iterator<String> it = Iterators.transform(namespaces.entrySet().iterator(),
            new Function<Entry<String, String>, String>() {
                @Override//from   w w  w  .j a  v  a  2 s  .c  o  m
                public String apply(Map.Entry<String, String> entry) {
                    String name = entry.getKey();
                    if (Namespaces.DEFAULT_NAMESPACE.equals(name))
                        name = DEFAULT_NAMESPACE_DISPLAY_NAME;
                    String id = entry.getValue();
                    if (cl.hasOption(namespaceIdOption.getOpt()))
                        return String.format(TablesCommand.NAME_AND_ID_FORMAT, name, id);
                    else
                        return name;
                };
            });

    shellState.printLines(it, !cl.hasOption(disablePaginationOpt.getOpt()));
    return 0;
}

From source file:org.geoserver.data.versioning.decorator.QueryFeatureCollector.java

@Override
public Iterator<Feature> iterator() {

    GeoGIT ggit = new GeoGIT(repository);
    VersionQuery versionQuery = new VersionQuery(ggit, featureType.getName());
    Iterator<Ref> featureRefs;
    try {//from ww  w  .j av a2s .  c o  m
        featureRefs = versionQuery.getByQuery(query);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }

    Iterator<Feature> features = Iterators.transform(featureRefs, new RefToFeature(repository, featureType));

    return features;
}