1 | |
|
2 | |
|
3 | |
|
4 | |
|
5 | |
|
6 | |
|
7 | |
package org.mule.module.xml.transformer; |
8 | |
|
9 | |
import org.mule.api.MuleEvent; |
10 | |
import org.mule.api.MuleMessage; |
11 | |
import org.mule.api.transformer.DiscoverableTransformer; |
12 | |
import org.mule.api.transport.OutputHandler; |
13 | |
import org.mule.module.xml.util.XMLUtils; |
14 | |
import org.mule.transformer.types.DataTypeFactory; |
15 | |
|
16 | |
import java.io.IOException; |
17 | |
import java.io.OutputStream; |
18 | |
|
19 | |
import javax.xml.stream.XMLStreamReader; |
20 | |
import javax.xml.stream.XMLStreamWriter; |
21 | |
import javax.xml.transform.Source; |
22 | |
import javax.xml.transform.TransformerFactoryConfigurationError; |
23 | |
import javax.xml.transform.stream.StreamResult; |
24 | |
|
25 | |
import org.dom4j.Document; |
26 | |
|
27 | |
public class XmlToOutputHandler extends AbstractXmlTransformer implements DiscoverableTransformer |
28 | |
{ |
29 | |
|
30 | 0 | private int priorityWeighting = DiscoverableTransformer.DEFAULT_PRIORITY_WEIGHTING; |
31 | |
|
32 | |
public XmlToOutputHandler() |
33 | 0 | { |
34 | 0 | registerSourceType(DataTypeFactory.STRING); |
35 | 0 | registerSourceType(DataTypeFactory.BYTE_ARRAY); |
36 | 0 | registerSourceType(DataTypeFactory.create(Source.class)); |
37 | 0 | registerSourceType(DataTypeFactory.create(Document.class)); |
38 | 0 | registerSourceType(DataTypeFactory.create(org.w3c.dom.Document.class)); |
39 | 0 | registerSourceType(DataTypeFactory.create(org.w3c.dom.Element.class)); |
40 | 0 | registerSourceType(DataTypeFactory.INPUT_STREAM); |
41 | 0 | registerSourceType(DataTypeFactory.create(OutputHandler.class)); |
42 | 0 | registerSourceType(DataTypeFactory.create(XMLStreamReader.class)); |
43 | 0 | registerSourceType(DataTypeFactory.create(DelayedResult.class)); |
44 | 0 | setReturnDataType(DataTypeFactory.create(OutputHandler.class)); |
45 | 0 | } |
46 | |
|
47 | |
@Override |
48 | |
public Object transformMessage(MuleMessage message, final String encoding) |
49 | |
{ |
50 | 0 | final Object src = message.getPayload(); |
51 | 0 | return new OutputHandler() |
52 | 0 | { |
53 | |
public void write(MuleEvent event, OutputStream out) throws IOException |
54 | |
{ |
55 | 0 | writeXml(src, encoding, out); |
56 | 0 | } |
57 | |
}; |
58 | |
} |
59 | |
|
60 | |
protected void writeXml(final Object src, final String encoding, OutputStream out) |
61 | |
throws TransformerFactoryConfigurationError, IOException |
62 | |
{ |
63 | |
try |
64 | |
{ |
65 | 0 | if (src instanceof XMLStreamReader) |
66 | |
{ |
67 | |
|
68 | |
|
69 | 0 | XMLStreamReader reader = (XMLStreamReader)src; |
70 | 0 | XMLStreamWriter writer = getXMLOutputFactory().createXMLStreamWriter(out); |
71 | |
|
72 | |
try { |
73 | 0 | writer.writeStartDocument(); |
74 | 0 | XMLUtils.copy(reader, writer); |
75 | 0 | writer.writeEndDocument(); |
76 | |
} finally { |
77 | 0 | writer.close(); |
78 | 0 | reader.close(); |
79 | 0 | } |
80 | 0 | } |
81 | 0 | else if (src instanceof DelayedResult) |
82 | |
{ |
83 | 0 | DelayedResult result = (DelayedResult) src; |
84 | |
|
85 | 0 | StreamResult streamResult = new StreamResult(out); |
86 | 0 | result.write(streamResult); |
87 | 0 | } |
88 | |
else |
89 | |
{ |
90 | 0 | writeToStream(src, encoding, out); |
91 | |
} |
92 | |
} |
93 | 0 | catch (Exception e) |
94 | |
{ |
95 | 0 | IOException ioe = new IOException(e.toString()); |
96 | 0 | ioe.initCause(e); |
97 | 0 | throw ioe; |
98 | 0 | } |
99 | 0 | } |
100 | |
|
101 | |
public int getPriorityWeighting() |
102 | |
{ |
103 | 0 | return priorityWeighting; |
104 | |
} |
105 | |
|
106 | |
public void setPriorityWeighting(int priorityWeighting) |
107 | |
{ |
108 | 0 | this.priorityWeighting = priorityWeighting; |
109 | 0 | } |
110 | |
|
111 | |
} |