001/*
002 * Copyright (c) 2016 Chris K Wensel <chris@wensel.net>. All Rights Reserved.
003 * Copyright (c) 2007-2017 Xplenty, Inc. All Rights Reserved.
004 *
005 * Project and contact information: http://www.cascading.org/
006 *
007 * This file is part of the Cascading project.
008 *
009 * Licensed under the Apache License, Version 2.0 (the "License");
010 * you may not use this file except in compliance with the License.
011 * You may obtain a copy of the License at
012 *
013 *     http://www.apache.org/licenses/LICENSE-2.0
014 *
015 * Unless required by applicable law or agreed to in writing, software
016 * distributed under the License is distributed on an "AS IS" BASIS,
017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018 * See the License for the specific language governing permissions and
019 * limitations under the License.
020 */
021
022package cascading.flow.planner.rule.transformer;
023
024import cascading.flow.planner.iso.expression.ElementCapture;
025import cascading.flow.planner.iso.transformer.InsertionGraphTransformer;
026import cascading.flow.planner.rule.PlanPhase;
027import cascading.flow.planner.rule.RuleExpression;
028import cascading.flow.planner.rule.RuleTransformer;
029import cascading.flow.planner.rule.util.LogLevel;
030
031/**
032 *
033 */
034public class RuleInsertionTransformer extends RuleTransformer
035  {
036  public RuleInsertionTransformer( PlanPhase phase, RuleExpression ruleExpression, String factoryName )
037    {
038    this( null, phase, ruleExpression, null, factoryName );
039    }
040
041  public RuleInsertionTransformer( PlanPhase phase, RuleExpression ruleExpression, String factoryName, InsertionGraphTransformer.Insertion insertion )
042    {
043    this( null, phase, ruleExpression, null, factoryName, insertion );
044    }
045
046  public RuleInsertionTransformer( PlanPhase phase, RuleExpression ruleExpression, ElementCapture capture, String factoryName )
047    {
048    this( null, phase, ruleExpression, capture, factoryName, InsertionGraphTransformer.Insertion.After );
049    }
050
051  public RuleInsertionTransformer( PlanPhase phase, RuleExpression ruleExpression, ElementCapture capture, String factoryName, InsertionGraphTransformer.Insertion insertion )
052    {
053    this( null, phase, ruleExpression, capture, factoryName, insertion );
054    }
055
056  public RuleInsertionTransformer( LogLevel logLevel, PlanPhase phase, RuleExpression ruleExpression, String factoryName )
057    {
058    this( logLevel, phase, ruleExpression, null, factoryName );
059    }
060
061  public RuleInsertionTransformer( LogLevel logLevel, PlanPhase phase, RuleExpression ruleExpression, String factoryName, InsertionGraphTransformer.Insertion insertion )
062    {
063    this( logLevel, phase, ruleExpression, null, factoryName, insertion );
064    }
065
066  public RuleInsertionTransformer( LogLevel logLevel, PlanPhase phase, RuleExpression ruleExpression, ElementCapture capture, String factoryName )
067    {
068    this( logLevel, phase, ruleExpression, capture, factoryName, InsertionGraphTransformer.Insertion.After );
069    }
070
071  public RuleInsertionTransformer( LogLevel logLevel, PlanPhase phase, RuleExpression ruleExpression, ElementCapture capture, String factoryName, InsertionGraphTransformer.Insertion insertion )
072    {
073    super( logLevel, phase, ruleExpression );
074
075    if( subGraphTransformer != null )
076      graphTransformer = new InsertionGraphTransformer( subGraphTransformer, ruleExpression.getMatchExpression(), capture, factoryName, insertion );
077    else if( contractedTransformer != null )
078      graphTransformer = new InsertionGraphTransformer( contractedTransformer, ruleExpression.getMatchExpression(), capture, factoryName, insertion );
079    else
080      graphTransformer = new InsertionGraphTransformer( ruleExpression.getMatchExpression(), capture, factoryName, insertion );
081    }
082  }