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11 package org.mule.module.atom.transformers;
12
13 import org.mule.api.transformer.TransformerException;
14 import org.mule.transformer.AbstractDiscoverableTransformer;
15 import org.mule.transformer.types.DataTypeFactory;
16
17 import java.io.ByteArrayInputStream;
18 import java.io.InputStream;
19 import java.io.StringReader;
20
21 import org.apache.abdera.Abdera;
22 import org.apache.abdera.model.Document;
23 import org.apache.abdera.model.Element;
24 import org.apache.abdera.model.Feed;
25 import org.apache.abdera.parser.Parser;
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30
31
32 public class ObjectToFeed extends AbstractDiscoverableTransformer
33 {
34 public ObjectToFeed()
35 {
36 this.registerSourceType(DataTypeFactory.BYTE_ARRAY);
37 this.registerSourceType(DataTypeFactory.INPUT_STREAM);
38 this.registerSourceType(DataTypeFactory.STRING);
39 setReturnDataType(DataTypeFactory.create(Feed.class));
40 }
41
42 @Override
43 public Object doTransform(Object src, String outputEncoding) throws TransformerException
44 {
45 try
46 {
47 Parser parser = Abdera.getInstance().getParser();
48 Document<Element> doc;
49 if (src instanceof InputStream)
50 {
51 doc = parser.parse((InputStream) src, outputEncoding);
52 }
53 else if (src instanceof byte[])
54 {
55 doc = parser.parse(new ByteArrayInputStream((byte[]) src), outputEncoding);
56 }
57 else
58 {
59 doc = parser.parse(new StringReader((String) src));
60 }
61
62
63 return doc.getRoot();
64 }
65 catch (Exception e)
66 {
67 throw new TransformerException(this, e);
68 }
69 }
70 }