    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.management.annotation.Property;
    028    import cascading.management.annotation.PropertyDescription;
    029    import cascading.management.annotation.Visibility;
    030    import cascading.operation.ValueAssertion;
    031    import cascading.operation.ValueAssertionCall;
    032    import cascading.tuple.Tuple;
    033    import 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     */
    039    public 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      }