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1   /*
2    * $Id: AddBookResponse.java 19423 2010-09-08 08:04:54Z dirk.olmes $
3    * --------------------------------------------------------------------------------------
4    * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
5    *
6    * The software in this package is published under the terms of the CPAL v1.0
7    * license, a copy of which has been included with this distribution in the
8    * LICENSE.txt file.
9    */
10  
11  package org.mule.example.bookstore.transformers;
12  
13  import org.mule.api.transformer.TransformerException;
14  import org.mule.example.bookstore.web.HtmlTemplate;
15  import org.mule.transformer.AbstractTransformer;
16  import org.mule.transformer.types.DataTypeFactory;
17  
18  /**
19   * A call to addBook() returns a Long representing the number of
20   * books in the catalog.  This transformer wraps the Long into
21   * a nice HTML page.
22   */
23  public class AddBookResponse extends AbstractTransformer
24  {
25      public AddBookResponse()
26      {
27          super();
28          registerSourceType(DataTypeFactory.create(Long.class));
29          setReturnDataType(DataTypeFactory.STRING);
30      }
31  
32      @Override
33      protected Object doTransform(Object src, String outputEncoding) throws TransformerException
34      {
35          Long numBooks = (Long) src;
36          String response = "Catalog now contains: " + numBooks + " book(s)";
37          return HtmlTemplate.wrapHtmlBody(response);
38      }
39  }