001    /*
002     * Copyright (c) 2007-2014 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    
021    package cascading.operation.assertion;
022    
023    import java.beans.ConstructorProperties;
024    import java.util.Collection;
025    
026    import cascading.flow.FlowProcess;
027    import cascading.operation.ValueAssertion;
028    import cascading.operation.ValueAssertionCall;
029    import cascading.tuple.Tuple;
030    import cascading.tuple.Tuples;
031    
032    /**
033     * Class AssertNotEquals asserts the number of constructor values is equal
034     * to the number of argument values {@link cascading.tuple.Tuple} and each constructor value is not
035     * {@code .equals()} to its corresponding argument value.
036     */
037    public class AssertNotEquals extends BaseAssertion implements ValueAssertion
038      {
039      /** Field values */
040      private Tuple values;
041    
042      /**
043       * Constructor AssertEquals creates a new AssertEquals instance.
044       *
045       * @param values of type Object...
046       */
047      @ConstructorProperties({"values"})
048      public AssertNotEquals( Object... values )
049        {
050        // set to 1 if null, will fail immediately afterwards
051        super( values == null ? 1 : values.length, "argument tuple: %s was not equal to values: %s" );
052    
053        if( values == null )
054          throw new IllegalArgumentException( "values may not be null" );
055    
056        if( values.length == 0 )
057          throw new IllegalArgumentException( "values may not be empty" );
058    
059        this.values = new Tuple( values );
060        }
061    
062      public Collection getValues()
063        {
064        return Tuples.asCollection( values );
065        }
066    
067      @Override
068      public void doAssert( FlowProcess flowProcess, ValueAssertionCall assertionCall )
069        {
070        Tuple tuple = assertionCall.getArguments().getTuple();
071    
072        if( tuple.equals( values ) )
073          fail( tuple.print(), values.print() );
074        }
075    
076      @Override
077      public boolean equals( Object object )
078        {
079        if( this == object )
080          return true;
081        if( !( object instanceof AssertNotEquals ) )
082          return false;
083        if( !super.equals( object ) )
084          return false;
085    
086        AssertNotEquals that = (AssertNotEquals) object;
087    
088        if( values != null ? !values.equals( that.values ) : that.values != null )
089          return false;
090    
091        return true;
092        }
093    
094      @Override
095      public int hashCode()
096        {
097        int result = super.hashCode();
098        result = 31 * result + ( values != null ? values.hashCode() : 0 );
099        return result;
100        }
101      }