| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.tinkerpop.gremlin.process.computer.traversal.step.map; |
| |
| import org.apache.commons.configuration.MapConfiguration; |
| import org.apache.tinkerpop.gremlin.process.computer.GraphFilter; |
| import org.apache.tinkerpop.gremlin.process.computer.Memory; |
| import org.apache.tinkerpop.gremlin.process.computer.VertexProgram; |
| import org.apache.tinkerpop.gremlin.process.computer.traversal.TraversalVertexProgram; |
| import org.apache.tinkerpop.gremlin.process.traversal.Traversal; |
| import org.apache.tinkerpop.gremlin.process.traversal.traverser.TraverserRequirement; |
| import org.apache.tinkerpop.gremlin.process.traversal.util.PureTraversal; |
| import org.apache.tinkerpop.gremlin.process.traversal.util.TraversalHelper; |
| import org.apache.tinkerpop.gremlin.structure.Graph; |
| import org.apache.tinkerpop.gremlin.structure.util.StringFactory; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Set; |
| |
| /** |
| * @author Marko A. Rodriguez (http://markorodriguez.com) |
| */ |
| public final class ProgramVertexProgramStep extends VertexProgramStep { |
| |
| private final Map<String, Object> configuration; |
| private final String toStringOfVertexProgram; |
| private final Set<TraverserRequirement> traverserRequirements; |
| |
| public ProgramVertexProgramStep(final Traversal.Admin traversal, final VertexProgram vertexProgram) { |
| super(traversal); |
| this.configuration = new HashMap<>(); |
| final MapConfiguration base = new MapConfiguration(this.configuration); |
| base.setDelimiterParsingDisabled(true); |
| vertexProgram.storeState(base); |
| this.toStringOfVertexProgram = vertexProgram.toString(); |
| this.traverserRequirements = vertexProgram.getTraverserRequirements(); |
| } |
| |
| @Override |
| public VertexProgram generateProgram(final Graph graph, final Memory memory) { |
| final MapConfiguration base = new MapConfiguration(this.configuration); |
| base.setDelimiterParsingDisabled(true); |
| PureTraversal.storeState(base, ROOT_TRAVERSAL, TraversalHelper.getRootTraversal(this.getTraversal()).clone()); |
| base.setProperty(STEP_ID, this.getId()); |
| if (memory.exists(TraversalVertexProgram.HALTED_TRAVERSERS)) |
| TraversalVertexProgram.storeHaltedTraversers(base, memory.get(TraversalVertexProgram.HALTED_TRAVERSERS)); |
| return VertexProgram.createVertexProgram(graph, base); |
| } |
| |
| @Override |
| public Set<TraverserRequirement> getRequirements() { |
| return this.traverserRequirements; |
| } |
| |
| @Override |
| public int hashCode() { |
| return super.hashCode() ^ this.configuration.hashCode(); |
| } |
| |
| @Override |
| public String toString() { |
| return StringFactory.stepString(this, this.toStringOfVertexProgram, new GraphFilter(this.computer)); |
| } |
| } |