    001/*
    002 * Copyright (c) 2007-2017 Xplenty, Inc. All Rights Reserved.
    003 *
    004 * Project and contact information: http://www.cascading.org/
    005 *
    006 * This file is part of the Cascading project.
    007 *
    008 * Licensed under the Apache License, Version 2.0 (the "License");
    009 * you may not use this file except in compliance with the License.
    010 * You may obtain a copy of the License at
    011 *
    012 *     http://www.apache.org/licenses/LICENSE-2.0
    013 *
    014 * Unless required by applicable law or agreed to in writing, software
    015 * distributed under the License is distributed on an "AS IS" BASIS,
    016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    017 * See the License for the specific language governing permissions and
    018 * limitations under the License.
    019 */
    020
    021package cascading.flow.planner.iso;
    022
    023import java.io.File;
    024
    025import cascading.flow.planner.graph.ElementGraph;
    026
    027/**
    028 *
    029 */
    030public abstract class GraphResult<R extends ElementGraph>
    031  {
    032  public abstract ElementGraph getBeginGraph();
    033
    034  public abstract String getRuleName();
    035
    036  public abstract R getEndGraph();
    037
    038  public abstract void writeDOTs( String path );
    039
    040  protected void writeEndGraph( String path, int count )
    041    {
    042    if( getEndGraph() != null )
    043      {
    044      String name = getEndGraph().getClass().getSimpleName();
    045      getEndGraph().writeDOT( new File( path, makeFileName( count, name, "end" ) ).toString() );
    046      }
    047    }
    048
    049  protected int writeBeginGraph( String path, int count )
    050    {
    051    if( getBeginGraph() != null )
    052      {
    053      String name = getBeginGraph().getClass().getSimpleName();
    054      getBeginGraph().writeDOT( new File( path, makeFileName( count++, name, "begin" ) ).toString() );
    055      }
    056
    057    return count;
    058    }
    059
    060  protected String makeFileName( int ordinal, String name, String state )
    061    {
    062    return String.format( "%04d-%s-%s.dot", ordinal, name, state );
    063    }
    064  }