001/* 002 * Copyright (c) 2016 Chris K Wensel <chris@wensel.net>. 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.rule.util; 022 023import cascading.util.LogUtil; 024 025/** 026 * 027 */ 028public class RuleLogUtil 029 { 030 private static final String[] CONTEXTS = new String[] 031 { 032 "cascading.flow.Flow", 033 "cascading.flow.planner.rule", 034 "cascading.flow.planner.iso.transformer", 035 "cascading.flow.planner.iso.assertion", 036 "cascading.flow.planner.iso.subgraph", 037 "cascading.flow.planner.iso.finder" 038 }; 039 040 public static String[] enableDebugLogging() 041 { 042 return LogUtil.setLog4jLevel( CONTEXTS, "DEBUG" ); 043 } 044 045 public static String[] enableTraceLogging() 046 { 047 return LogUtil.setLog4jLevel( CONTEXTS, "TRACE" ); 048 } 049 050 public static String[] enableLogging( LogLevel level ) 051 { 052 if( level == null ) 053 return null; 054 055 return LogUtil.setLog4jLevel( CONTEXTS, level.toString() ); 056 } 057 058 public static void restoreLogging( String[] levels ) 059 { 060 if( levels != null ) 061 LogUtil.setLog4jLevel( CONTEXTS, levels ); 062 } 063 }