Package com.thinkaurelius.faunus

Examples of com.thinkaurelius.faunus.FaunusVertex

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    public static FaunusVertex fromJSON(String line) throws IOException {
        try {
            final JSONObject json = new JSONObject(new JSONTokener(line));
            line = EMPTY_STRING; // clear up some memory

            final FaunusVertex vertex = (FaunusVertex) graphson.vertexFromJson(json);

            fromJSONEdges(vertex, json.optJSONArray(_OUT_E), OUT);
            json.remove(_OUT_E); // clear up some memory
            fromJSONEdges(vertex, json.optJSONArray(_IN_E), IN);
            json.remove(_IN_E); // clear up some memory
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        if (null != edges) {
            for (int i = 0; i < edges.length(); i++) {
                final JSONObject edge = edges.optJSONObject(i);
                FaunusEdge faunusEdge = null;
                if (direction.equals(Direction.IN)) {
                    faunusEdge = (FaunusEdge) graphson.edgeFromJson(edge, new FaunusVertex(edge.optLong(GraphSONTokens._OUT_V)), vertex);
                } else if (direction.equals(Direction.OUT)) {
                    faunusEdge = (FaunusEdge) graphson.edgeFromJson(edge, vertex, new FaunusVertex(edge.optLong(GraphSONTokens._IN_V)));
                }

                if (faunusEdge != null) {
                    vertex.addEdge(direction, faunusEdge);
                }
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    public static class Reduce extends Reducer<LongWritable, Holder<FaunusVertex>, NullWritable, FaunusVertex> {

        @Override
        public void reduce(final LongWritable key, final Iterable<Holder<FaunusVertex>> values, final Reducer<LongWritable, Holder<FaunusVertex>, NullWritable, FaunusVertex>.Context context) throws IOException, InterruptedException {

            FaunusVertex faunusVertex = null;
            // generate a map of the faunus id with the blueprints id for all shell vertices (vertices incoming adjacent)
            final java.util.Map<Long, Object> faunusBlueprintsIdMap = new HashMap<Long, Object>();
            for (final Holder<FaunusVertex> holder : values) {
                if (holder.getTag() == 's') {
                    faunusBlueprintsIdMap.put(holder.get().getIdAsLong(), holder.get().getProperty(BLUEPRINTS_ID));
                } else {
                    final FaunusVertex toClone = holder.get();
                    faunusVertex = new FaunusVertex(toClone.getIdAsLong());
                    faunusVertex.setProperty(BLUEPRINTS_ID, toClone.getProperty(BLUEPRINTS_ID));
                    faunusVertex.addEdges(OUT, toClone);
                }
            }
            if (null != faunusVertex) {
                faunusVertex.setProperty(ID_MAP_KEY, faunusBlueprintsIdMap);
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            return new FaunusEdge(convertIdentifier(id), out.getIdAsLong(), in.getIdAsLong(), label);
        }

        @Override
        public FaunusVertex createVertex(final Object id) {
            return new FaunusVertex(convertIdentifier(id));
        }
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        @Override
        public void map(final NullWritable key, final FaunusElement value, final Mapper<NullWritable, FaunusElement, LongWritable, FaunusVertex>.Context context) throws IOException, InterruptedException {
            if (value instanceof FaunusEdge) {
                final long outId = ((FaunusEdge) value).getVertexId(OUT);
                final long inId = ((FaunusEdge) value).getVertexId(IN);
                FaunusVertex vertex = this.map.get(outId);
                if (null == vertex) {
                    vertex = new FaunusVertex(outId);
                    this.map.put(outId, vertex);
                }
                vertex.addEdge(OUT, WritableUtils.clone((FaunusEdge) value, context.getConfiguration()));
                this.counter++;

                vertex = this.map.get(inId);
                if (null == vertex) {
                    vertex = new FaunusVertex(inId);
                    this.map.put(inId, vertex);
                }
                vertex.addEdge(IN, WritableUtils.clone((FaunusEdge) value, context.getConfiguration()));
                context.getCounter(Counters.EDGES_PROCESSED).increment(1l);
                this.counter++;
            } else {
                final long id = value.getIdAsLong();
                FaunusVertex vertex = this.map.get(id);
                if (null == vertex) {
                    vertex = new FaunusVertex(id);
                    this.map.put(id, vertex);
                }
                vertex.getProperties().putAll(value.getProperties());
                vertex.addEdges(BOTH, WritableUtils.clone((FaunusVertex) value, context.getConfiguration()));
                this.counter++;
            }
            if (this.counter > MAX_MAP_SIZE)
                this.flush(context);
        }
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        this(IDHandler.getKeyID(key));
    }

    public FaunusVertexLoader(final long id) {
        Preconditions.checkArgument(id > 0);
        this.vertex = new FaunusVertex(id);
    }
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    }

    @Override
    public boolean nextKeyValue() throws IOException, InterruptedException {
        while (this.reader.nextKeyValue()) {
            final FaunusVertex temp = this.graph.readFaunusVertex(this.reader.getCurrentKey().duplicate(), this.reader.getCurrentValue());
            if (null != temp) {
                if (this.pathEnabled) temp.enablePath(true);
                this.vertex = temp;
                this.vertexQuery.defaultFilter(this.vertex);
                return true;
            }
        }
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    }

    @Override
    public boolean nextKeyValue() throws IOException, InterruptedException {
        while (this.reader.nextKeyValue()) {
            final FaunusVertex temp = this.graph.readFaunusVertex(this.reader.getCurrentKey().copyBytes(), this.reader.getCurrentValue().getMap().get(TitanHBaseInputFormat.EDGE_STORE_FAMILY));
            if (null != temp) {
                if (this.pathEnabled) temp.enablePath(true);
                this.vertex = temp;
                this.vertexQuery.defaultFilter(this.vertex);
                return true;
            }
        }
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        private final LongWritable longWritable = new LongWritable();

        @Override
        public void setup(final Mapper.Context context) throws IOException, InterruptedException {
            this.drop = Tokens.Action.valueOf(context.getConfiguration().get(ACTION)).equals(Tokens.Action.DROP);
            this.vertex = new FaunusVertex(context.getConfiguration().getBoolean(FaunusCompiler.PATH_ENABLED, false));
        }
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        private final Holder<FaunusVertex> holder = new Holder<FaunusVertex>();
        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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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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