Coverage Report - datafu.pig.bags.sets.SetOperationsBase
 
Classes in this File Line Coverage Branch Coverage Complexity
SetOperationsBase
66%
6/9
75%
3/4
6
 
 1  
 /*
 2  
  * Copyright 2010 LinkedIn, Inc
 3  
  * 
 4  
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 5  
  * use this file except in compliance with the License. You may obtain a copy of
 6  
  * the License at
 7  
  * 
 8  
  * http://www.apache.org/licenses/LICENSE-2.0
 9  
  * 
 10  
  * Unless required by applicable law or agreed to in writing, software
 11  
  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 12  
  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 13  
  * License for the specific language governing permissions and limitations under
 14  
  * the License.
 15  
  */
 16  
  
 17  
 package datafu.pig.bags.sets;
 18  
 
 19  
 import org.apache.pig.EvalFunc;
 20  
 import org.apache.pig.data.DataBag;
 21  
 import org.apache.pig.data.DataType;
 22  
 import org.apache.pig.impl.logicalLayer.schema.Schema;
 23  
 
 24  633
 public abstract class SetOperationsBase extends EvalFunc<DataBag>
 25  
 {
 26  
   @Override
 27  
   public Schema outputSchema(Schema input)
 28  
   {
 29  
     try {      
 30  160
       for (Schema.FieldSchema fieldSchema : input.getFields())
 31  
       {
 32  320
         if (fieldSchema.type != DataType.BAG)
 33  
         {
 34  0
           throw new RuntimeException("Expected a bag but got: " + DataType.findTypeName(fieldSchema.type));
 35  
         }
 36  
       }
 37  
       
 38  160
       Schema bagSchema = input.getField(0).schema;
 39  
                   
 40  160
       Schema outputSchema = new Schema(new Schema.FieldSchema(getSchemaName(this.getClass()
 41  
                                                              .getName()
 42  
                                                              .toLowerCase(), input),
 43  
                                            bagSchema,
 44  
                                            DataType.BAG));
 45  
             
 46  160
       return outputSchema;
 47  
     }
 48  0
     catch (Exception e) {
 49  0
       return null;
 50  
     }
 51  
   }
 52  
 }