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1   /*
2    * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
3    * The software in this package is published under the terms of the CPAL v1.0
4    * license, a copy of which has been included with this distribution in the
5    * LICENSE.txt file.
6    */
7   package org.mule.construct.builder;
8   
9   import org.mule.MessageExchangePattern;
10  import org.mule.api.MuleContext;
11  import org.mule.api.MuleException;
12  import org.mule.api.routing.filter.Filter;
13  import org.mule.construct.Validator;
14  import org.mule.util.StringUtils;
15  
16  public class ValidatorBuilder extends
17      AbstractFlowConstructWithSingleInboundAndOutboundEndpointBuilder<ValidatorBuilder, Validator>
18  {
19      protected Filter validationFilter;
20      protected String ackExpression;
21      protected String nackExpression;
22      protected String errorExpression;
23  
24      public ValidatorBuilder validationFilter(Filter validationFilter)
25      {
26          this.validationFilter = validationFilter;
27          return this;
28      }
29  
30      public ValidatorBuilder ackExpression(String ackExpression)
31      {
32          this.ackExpression = ackExpression;
33          return this;
34      }
35  
36      public ValidatorBuilder nackExpression(String nackExpression)
37      {
38          this.nackExpression = nackExpression;
39          return this;
40      }
41  
42      public ValidatorBuilder errorExpression(String errorExpression)
43      {
44          this.errorExpression = errorExpression;
45          return this;
46      }
47  
48      @Override
49      protected MessageExchangePattern getInboundMessageExchangePattern()
50      {
51          return MessageExchangePattern.REQUEST_RESPONSE;
52      }
53  
54      @Override
55      protected MessageExchangePattern getOutboundMessageExchangePattern()
56      {
57          return hasErrorExpression()
58                                     ? MessageExchangePattern.REQUEST_RESPONSE
59                                     : MessageExchangePattern.ONE_WAY;
60      }
61  
62      @Override
63      protected Validator buildFlowConstruct(MuleContext muleContext) throws MuleException
64      {
65          return new Validator(name, muleContext, getOrBuildInboundEndpoint(muleContext),
66              getOrBuildOutboundEndpoint(muleContext), validationFilter, ackExpression, nackExpression,
67              errorExpression);
68      }
69  
70      protected boolean hasErrorExpression()
71      {
72          return StringUtils.isNotBlank(errorExpression);
73      }
74  }