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package org.mule.module.xml.transformer; |
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import org.mule.api.MuleEvent; |
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import org.mule.api.MuleMessage; |
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import org.mule.api.transformer.DiscoverableTransformer; |
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import org.mule.api.transport.OutputHandler; |
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import org.mule.module.xml.util.XMLUtils; |
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import org.mule.transformer.types.DataTypeFactory; |
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import java.io.IOException; |
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import java.io.OutputStream; |
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import javax.xml.stream.XMLStreamReader; |
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import javax.xml.stream.XMLStreamWriter; |
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import javax.xml.transform.Source; |
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import javax.xml.transform.TransformerFactoryConfigurationError; |
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import javax.xml.transform.stream.StreamResult; |
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import org.dom4j.Document; |
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public class XmlToOutputHandler extends AbstractXmlTransformer implements DiscoverableTransformer |
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{ |
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33 | 0 | private int priorityWeighting = DiscoverableTransformer.DEFAULT_PRIORITY_WEIGHTING; |
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public XmlToOutputHandler() |
36 | 0 | { |
37 | 0 | registerSourceType(DataTypeFactory.STRING); |
38 | 0 | registerSourceType(DataTypeFactory.BYTE_ARRAY); |
39 | 0 | registerSourceType(DataTypeFactory.create(Source.class)); |
40 | 0 | registerSourceType(DataTypeFactory.create(Document.class)); |
41 | 0 | registerSourceType(DataTypeFactory.create(org.w3c.dom.Document.class)); |
42 | 0 | registerSourceType(DataTypeFactory.create(org.w3c.dom.Element.class)); |
43 | 0 | registerSourceType(DataTypeFactory.INPUT_STREAM); |
44 | 0 | registerSourceType(DataTypeFactory.create(OutputHandler.class)); |
45 | 0 | registerSourceType(DataTypeFactory.create(XMLStreamReader.class)); |
46 | 0 | registerSourceType(DataTypeFactory.create(DelayedResult.class)); |
47 | 0 | setReturnDataType(DataTypeFactory.create(OutputHandler.class)); |
48 | 0 | } |
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@Override |
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public Object transformMessage(MuleMessage message, final String encoding) |
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{ |
53 | 0 | final Object src = message.getPayload(); |
54 | 0 | return new OutputHandler() |
55 | 0 | { |
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public void write(MuleEvent event, OutputStream out) throws IOException |
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{ |
58 | 0 | writeXml(src, encoding, out); |
59 | 0 | } |
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}; |
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} |
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protected void writeXml(final Object src, final String encoding, OutputStream out) |
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throws TransformerFactoryConfigurationError, IOException |
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{ |
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try |
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{ |
68 | 0 | if (src instanceof XMLStreamReader) |
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{ |
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72 | 0 | XMLStreamReader reader = (XMLStreamReader)src; |
73 | 0 | XMLStreamWriter writer = getXMLOutputFactory().createXMLStreamWriter(out); |
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try { |
76 | 0 | writer.writeStartDocument(); |
77 | 0 | XMLUtils.copy(reader, writer); |
78 | 0 | writer.writeEndDocument(); |
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} finally { |
80 | 0 | writer.close(); |
81 | 0 | reader.close(); |
82 | 0 | } |
83 | 0 | } |
84 | 0 | else if (src instanceof DelayedResult) |
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{ |
86 | 0 | DelayedResult result = (DelayedResult) src; |
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|
88 | 0 | StreamResult streamResult = new StreamResult(out); |
89 | 0 | result.write(streamResult); |
90 | 0 | } |
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else |
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{ |
93 | 0 | writeToStream(src, encoding, out); |
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} |
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} |
96 | 0 | catch (Exception e) |
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{ |
98 | 0 | IOException ioe = new IOException(e.toString()); |
99 | 0 | ioe.initCause(e); |
100 | 0 | throw ioe; |
101 | 0 | } |
102 | 0 | } |
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public int getPriorityWeighting() |
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{ |
106 | 0 | return priorityWeighting; |
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} |
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public void setPriorityWeighting(int priorityWeighting) |
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{ |
111 | 0 | this.priorityWeighting = priorityWeighting; |
112 | 0 | } |
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} |