Package com.thinkaurelius.faunus

Examples of com.thinkaurelius.faunus.FaunusVertex

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        }


        @Override
        public void reduce(final LongWritable key, final Iterable<Holder> values, final Reducer<LongWritable, Holder, LongWritable, Holder>.Context context) throws IOException, InterruptedException {
            FaunusVertex vertex = null;
            final Set<Long> ids = new HashSet<Long>();
            for (final Holder holder : values) {
                final char tag = holder.getTag();
                if (tag == 'k') {
                    ids.add(holder.get().getIdAsLong());
                    // todo: once vertex is found, do individual removes to save memory
                } else {
                    vertex = (FaunusVertex) holder.get();
                }
            }
            if (null != vertex) {
                if (ids.size() > 0)
                    vertex.removeEdgesToFrom(ids);
                context.write(key, this.holder.set('v', vertex));
            } else {
                // vertex not on the same machine as the vertices being deleted
                for (final Long id : ids) {
                    context.write(key, this.holder.set('k', this.vertex.reuse(id)));
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    private final LineRecordReader lineRecordReader;
    private FaunusVertex vertex;

    public ScriptRecordReader(final VertexQueryFilter vertexQuery, final TaskAttemptContext context) throws IOException {
        this.lineRecordReader = new LineRecordReader();
        this.vertex = new FaunusVertex();
        this.vertexQuery = vertexQuery;
        this.pathEnabled = context.getConfiguration().getBoolean(FaunusCompiler.PATH_ENABLED, false);

        final FileSystem fs = FileSystem.get(context.getConfiguration());
        try {
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    public static class Reduce extends Reducer<LongWritable, Holder, NullWritable, FaunusVertex> {

        @Override
        public void reduce(final LongWritable key, final Iterable<Holder> values, final Reducer<LongWritable, Holder, NullWritable, FaunusVertex>.Context context) throws IOException, InterruptedException {
            FaunusVertex vertex = null;
            final Set<Long> ids = new HashSet<Long>();
            for (final Holder holder : values) {
                final char tag = holder.getTag();
                if (tag == 'k') {
                    ids.add(holder.get().getIdAsLong());
                    // todo: once vertex is found, do individual removes to save memory
                } else {
                    vertex = (FaunusVertex) holder.get();
                }
            }
            if (null != vertex) {
                if (ids.size() > 0)
                    vertex.removeEdgesToFrom(ids);
                context.write(NullWritable.get(), vertex);

                context.getCounter(Counters.OUT_EDGES_KEPT).increment(((List) vertex.getEdges(OUT)).size());
                context.getCounter(Counters.IN_EDGES_KEPT).increment(((List) vertex.getEdges(IN)).size());
            }
        }
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        }
    }

    public void handleStatement(final Statement s) throws RDFHandlerException {
        if (this.asProperties.contains(s.getPredicate().toString())) {
            final FaunusVertex subject = new FaunusVertex(Crc64.digest(s.getSubject().stringValue().getBytes()));
            subject.setProperty(postProcess(s.getPredicate()), postProcess(s.getObject()));
            subject.setProperty(RDFInputFormat.URI, s.getSubject().stringValue());
            if (this.useFragments)
                subject.setProperty(RDFInputFormat.NAME, createFragment(s.getSubject()));
            subject.enablePath(this.enablePath);
            this.queue.add(subject);
        } else if (this.literalAsProperty && (s.getObject() instanceof Literal)) {
            final FaunusVertex subject = new FaunusVertex(Crc64.digest(s.getSubject().stringValue().getBytes()));
            subject.setProperty(postProcess(s.getPredicate()), castLiteral((Literal) s.getObject()));
            subject.setProperty(RDFInputFormat.URI, s.getSubject().stringValue());
            if (this.useFragments)
                subject.setProperty(RDFInputFormat.NAME, createFragment(s.getSubject()));
            subject.enablePath(this.enablePath);
            this.queue.add(subject);
        } else {
            long subjectId = Crc64.digest(s.getSubject().stringValue().getBytes());
            final FaunusVertex subject = new FaunusVertex(subjectId);
            subject.reuse(subjectId);
            subject.setProperty(RDFInputFormat.URI, s.getSubject().stringValue());
            if (this.useFragments)
                subject.setProperty(RDFInputFormat.NAME, createFragment(s.getSubject()));
            subject.enablePath(this.enablePath);
            this.queue.add(subject);

            long objectId = Crc64.digest(s.getObject().stringValue().getBytes());
            final FaunusVertex object = new FaunusVertex(objectId);
            object.reuse(objectId);
            object.setProperty(RDFInputFormat.URI, s.getObject().stringValue());
            if (this.useFragments)
                object.setProperty(RDFInputFormat.NAME, createFragment(s.getObject()));
            object.enablePath(this.enablePath);
            this.queue.add(object);

            final FaunusEdge predicate = new FaunusEdge(-1, subjectId, objectId, postProcess(s.getPredicate()));
            predicate.setProperty(RDFInputFormat.URI, s.getPredicate().stringValue());
            if (null != s.getContext())
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        @Override
        public void setup(final Reducer.Context context) throws IOException, InterruptedException {
            this.direction = Direction.valueOf(context.getConfiguration().get(LinkMapReduce.DIRECTION));
            this.direction = this.direction.opposite();
            this.vertex = new FaunusVertex(context.getConfiguration().getBoolean(FaunusCompiler.PATH_ENABLED, false));
        }
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        @Override
        public void setup(final Reducer.Context context) throws IOException, InterruptedException {
            this.direction = Direction.valueOf(context.getConfiguration().get(DIRECTION));
            this.direction = this.direction.opposite();
            this.vertex = new FaunusVertex(context.getConfiguration().getBoolean(FaunusCompiler.PATH_ENABLED, false));
        }
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        @Override
        public void setup(final Mapper.Context context) throws IOException, InterruptedException {
            this.step = context.getConfiguration().getInt(STEP, -1);
            this.isVertex = context.getConfiguration().getClass(CLASS, Element.class, Element.class).equals(Vertex.class);
            this.vertex = new FaunusVertex(context.getConfiguration().getBoolean(FaunusCompiler.PATH_ENABLED, false));
        }
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        private FaunusVertex vertex;
        private final Holder<FaunusVertex> holder = new Holder<FaunusVertex>();

        @Override
        public void setup(final Reducer.Context context) throws IOException, InterruptedException {
            this.vertex = new FaunusVertex(context.getConfiguration().getBoolean(FaunusCompiler.PATH_ENABLED, false));
        }
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        private FaunusVertex vertex;

        @Override
        public void setup(final Reducer.Context context) throws IOException, InterruptedException {
            this.vertex = new FaunusVertex(context.getConfiguration().getBoolean(FaunusCompiler.PATH_ENABLED, false));
        }
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            this.direction = Direction.valueOf(context.getConfiguration().get(DIRECTION));
            if (!this.direction.equals(BOTH))
                this.direction = this.direction.opposite();

            this.labels = context.getConfiguration().getStrings(LABELS);
            this.vertex = new FaunusVertex(context.getConfiguration().getBoolean(FaunusCompiler.PATH_ENABLED, false));
        }
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Related Classes of com.thinkaurelius.faunus.FaunusVertex

  • com.thinkaurelius.faunus.formats.BlueprintsGraphOutputMapReduce$Reduce
  • com.thinkaurelius.faunus.formats.BlueprintsGraphOutputMapReduceTest
  • com.thinkaurelius.faunus.formats.edgelist.EdgeListInputMapReduce$Map
  • com.thinkaurelius.faunus.formats.edgelist.EdgeListInputMapReduceTest
  • com.thinkaurelius.faunus.formats.edgelist.rdf.RDFBlueprintsHandler
  • com.thinkaurelius.faunus.formats.edgelist.rdf.RDFBlueprintsHandlerTest
  • com.thinkaurelius.faunus.formats.graphson.FaunusGraphSONUtility
  • com.thinkaurelius.faunus.formats.graphson.FaunusGraphSONUtility$FaunusElementFactory
  • com.thinkaurelius.faunus.formats.graphson.FaunusGraphSONUtilityTest
  • com.thinkaurelius.faunus.formats.graphson.GraphSONRecordReaderTest
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