    001/*
    002 * Copyright (c) 2007-2016 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;
    024import java.util.Collection;
    025
    026import cascading.flow.FlowProcess;
    027import cascading.management.annotation.Property;
    028import cascading.management.annotation.PropertyDescription;
    029import cascading.management.annotation.Visibility;
    030import cascading.operation.ValueAssertion;
    031import cascading.operation.ValueAssertionCall;
    032import cascading.tuple.Tuple;
    033import cascading.tuple.Tuples;
    034
    035/**
    036 * Class AssertEquals asserts the number of constructor values is equal
    037 * to the number of argument values {@link Tuple} and each constructor value is {@code .equals()} to its corresponding argument value.
    038 */
    039public class AssertEquals extends BaseAssertion implements ValueAssertion
    040  {
    041  /** Field values */
    042  private Tuple values;
    043
    044  /**
    045   * Constructor AssertEquals creates a new AssertEquals instance.
    046   *
    047   * @param values of type Object...
    048   */
    049  @ConstructorProperties({"values"})
    050  public AssertEquals( Object... values )
    051    {
    052    // set to 1 if null, will fail immediately afterwards
    053    super( values == null ? 1 : values.length, "argument tuple: %s was not equal to values: %s" );
    054
    055    if( values == null )
    056      throw new IllegalArgumentException( "values may not be null" );
    057
    058    if( values.length == 0 )
    059      throw new IllegalArgumentException( "values may not be empty" );
    060
    061    this.values = new Tuple( values );
    062    }
    063
    064  @Property(name = "values", visibility = Visibility.PRIVATE)
    065  @PropertyDescription("The expected values.")
    066  public Collection getValues()
    067    {
    068    return Tuples.asCollection( values );
    069    }
    070
    071  @Override
    072  public void doAssert( FlowProcess flowProcess, ValueAssertionCall assertionCall )
    073    {
    074    Tuple tuple = assertionCall.getArguments().getTuple();
    075
    076    if( !tuple.equals( values ) )
    077      fail( tuple.print(), values.print() );
    078    }
    079
    080  @Override
    081  public boolean equals( Object object )
    082    {
    083    if( this == object )
    084      return true;
    085    if( !( object instanceof AssertEquals ) )
    086      return false;
    087    if( !super.equals( object ) )
    088      return false;
    089
    090    AssertEquals that = (AssertEquals) object;
    091
    092    if( values != null ? !values.equals( that.values ) : that.values != 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 + ( values != null ? values.hashCode() : 0 );
    103    return result;
    104    }
    105  }