Coverage Report - org.apache.commons.pipeline.stage.LogStage
 
Classes in this File Line Coverage Branch Coverage Complexity
LogStage
68%
13/19
N/A
1
 
 1  
 /*
 2  
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3  
  * contributor license agreements.  See the NOTICE file distributed with
 4  
  * this work for additional information regarding copyright ownership.
 5  
  * The ASF licenses this file to You under the Apache License, Version 2.0
 6  
  * (the "License"); you may not use this file except in compliance with
 7  
  * the License.  You may obtain a copy of the License at
 8  
  * 
 9  
  *     http://www.apache.org/licenses/LICENSE-2.0
 10  
  * 
 11  
  * Unless required by applicable law or agreed to in writing, software
 12  
  * distributed under the License is distributed on an "AS IS" BASIS,
 13  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14  
  * See the License for the specific language governing permissions and
 15  
  * limitations under the License. 
 16  
  */
 17  
 
 18  
 package org.apache.commons.pipeline.stage;
 19  
 
 20  
 import org.apache.commons.pipeline.StageException;
 21  
 import org.apache.commons.pipeline.stage.BaseStage;
 22  
 import java.util.Queue;
 23  
 import org.apache.commons.logging.Log;
 24  
 import org.apache.commons.logging.LogFactory;
 25  
 
 26  
 
 27  
 /**
 28  
  * A do-nothing implementation of Stage that simply logs the state of processing. 
 29  
  * and each object seen by its {@link #process(Object)} method.
 30  
  * Useful for debugging purposes. 
 31  
  */
 32  
 public class LogStage extends BaseStage {
 33  2
     private Log log = LogFactory.getLog(LogStage.class);
 34  
     
 35  
     /**
 36  
      * Creates a new LogStage.
 37  
      */
 38  2
     public LogStage() {
 39  2
     }
 40  
     
 41  
     /**
 42  
      * Logs the point at which preprocessing runs.
 43  
      */
 44  
     public void preprocess() throws StageException {
 45  2
         super.preprocess();
 46  2
         log.info("Stage " + this.getClass().getName() + " preprocessing.");
 47  2
     }
 48  
     
 49  
     /**
 50  
      * Logs the current state of an object on the queue and passes the
 51  
      * object unchanged to the next stage in the pipeline.
 52  
      */
 53  
     public void process(Object obj) throws StageException {
 54  160
         log.info("Processing object " + obj);
 55  160
         this.emit(obj);
 56  160
     }
 57  
         
 58  
     /**
 59  
      * Logs tht point at which postprocessing runs
 60  
      */
 61  
     public void postprocess() throws StageException {
 62  2
         log.info("Stage " + this.getClass().getName() + " postprocessing.");
 63  2
     }
 64  
     
 65  
     /**
 66  
      * Logs the point at which stage resources are released.
 67  
      */
 68  
     public void release() {
 69  2
         log.info("Stage " + this.getClass().getName() + " released.");
 70  2
     }
 71  
 
 72  
     /**
 73  
      * Sets the logger.
 74  
      */
 75  
     public synchronized void setLog(Log log) {
 76  0
         this.log = log;
 77  0
     }
 78  
     
 79  
     /**
 80  
      * Sets the logger based upon the log name.
 81  
      */
 82  
     public synchronized void setLog(String logName) {
 83  0
         this.log = LogFactory.getLog(logName);
 84  0
     }
 85  
     
 86  
     /**
 87  
      * Sets the logger based upon the specified class.
 88  
      */
 89  
     public synchronized void setLog(Class clazz) {
 90  0
         this.log = LogFactory.getLog(clazz);
 91  0
     }
 92  
 }