    001/*
    002 * Copyright (c) 2007-2017 Xplenty, 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 cascading.flow.FlowProcess;
    024import cascading.operation.ValueAssertion;
    025import cascading.operation.ValueAssertionCall;
    026import cascading.tuple.Tuple;
    027import cascading.tuple.TupleEntry;
    028
    029/** Class AssertNotNull asserts that every value in the argument values {@link Tuple} is not a null value. */
    030public class AssertNotNull extends BaseAssertion implements ValueAssertion
    031  {
    032  /** Constructor AssertNotNull creates a new AssertNotNull instance. */
    033  public AssertNotNull()
    034    {
    035    super( "argument '%s' value was null, in tuple: %s" );
    036    }
    037
    038  @Override
    039  public void doAssert( FlowProcess flowProcess, ValueAssertionCall assertionCall )
    040    {
    041    TupleEntry input = assertionCall.getArguments();
    042    int pos = 0;
    043
    044    for( Object value : input.getTuple() )
    045      {
    046      if( value == null )
    047        fail( input.getFields().get( pos ), input.getTuple().print() );
    048
    049      pos++;
    050      }
    051    }
    052  }