001/*
002 * Copyright (c) 2007-2015 Concurrent, 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.operation.assertion;
022
023import java.beans.ConstructorProperties;
024
025import cascading.flow.FlowProcess;
026import cascading.management.annotation.Property;
027import cascading.management.annotation.PropertyDescription;
028import cascading.management.annotation.Visibility;
029import cascading.operation.ValueAssertion;
030import cascading.operation.ValueAssertionCall;
031import cascading.tuple.TupleEntry;
032
033/**
034 * Class AssertEqualsAll asserts that every value in the argument values {@link cascading.tuple.Tuple} is equal to the value
035 * provided on the constructor.
036 */
037public class AssertEqualsAll extends BaseAssertion implements ValueAssertion
038  {
039  /** Field value */
040  private Object value;
041
042  /**
043   * Constructor AssertEqualsAll creates a new AssertEqualsAll instance.
044   *
045   * @param value of type Comparable
046   */
047  @ConstructorProperties({"value"})
048  public AssertEqualsAll( Object value )
049    {
050    super( "argument '%s' value was: %s, not: %s, in tuple: %s" );
051
052    if( value == null )
053      throw new IllegalArgumentException( "value may not be null" );
054
055    this.value = value;
056    }
057
058  @Property(name = "value", visibility = Visibility.PRIVATE)
059  @PropertyDescription("The expected value.")
060  public Object getValue()
061    {
062    return value;
063    }
064
065  @Override
066  public void doAssert( FlowProcess flowProcess, ValueAssertionCall assertionCall )
067    {
068    TupleEntry input = assertionCall.getArguments();
069    int pos = 0;
070
071    for( Object element : input.getTuple() )
072      {
073      if( !value.equals( element ) )
074        fail( input.getFields().get( pos ), element, value, input.getTuple().print() );
075
076      pos++;
077      }
078    }
079
080  @Override
081  public boolean equals( Object object )
082    {
083    if( this == object )
084      return true;
085    if( !( object instanceof AssertEqualsAll ) )
086      return false;
087    if( !super.equals( object ) )
088      return false;
089
090    AssertEqualsAll that = (AssertEqualsAll) object;
091
092    if( value != null ? !value.equals( that.value ) : that.value != null )
093      return false;
094
095    return true;
096    }
097
098  @Override
099  public int hashCode()
100    {
101    int result = super.hashCode();
102    result = 31 * result + ( value != null ? value.hashCode() : 0 );
103    return result;
104    }
105  }