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package org.mule.util; |
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import org.mule.api.MuleContext; |
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import org.mule.api.util.StreamCloser; |
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import org.mule.api.util.StreamCloserService; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.util.Iterator; |
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import javax.xml.transform.sax.SAXSource; |
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import javax.xml.transform.stream.StreamSource; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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import org.xml.sax.InputSource; |
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28 | 0 | public class DefaultStreamCloserService implements StreamCloserService |
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{ |
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31 | 0 | private static final Log log = LogFactory.getLog(DefaultStreamCloserService.class); |
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private MuleContext muleContext; |
34 | 0 | private StreamCloser coreStreamTypesCloser = new CoreStreamTypesCloser(); |
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public void closeStream(Object stream) |
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{ |
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try |
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{ |
40 | 0 | if (coreStreamTypesCloser.canClose(stream.getClass())) |
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{ |
42 | 0 | coreStreamTypesCloser.close(stream); |
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} |
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else |
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{ |
46 | 0 | Iterator closers = muleContext.getRegistry().lookupObjects(StreamCloser.class).iterator(); |
47 | 0 | while (closers.hasNext()) |
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{ |
49 | 0 | StreamCloser closer = (StreamCloser) closers.next(); |
50 | 0 | if (closer.canClose(stream.getClass())) |
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{ |
52 | 0 | closer.close(stream); |
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} |
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else |
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{ |
56 | 0 | log.debug("Unable to find an StreamCloser for the stream type: " + stream.getClass() |
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+ ", the stream: " + stream + " will not be closed."); |
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} |
59 | 0 | } |
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} |
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} |
62 | 0 | catch (Exception e) |
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{ |
64 | 0 | log.debug("Exception closing stream: " + stream, e); |
65 | 0 | } |
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67 | 0 | } |
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public void setMuleContext(MuleContext context) |
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{ |
71 | 0 | muleContext = context; |
72 | 0 | } |
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74 | 0 | static class CoreStreamTypesCloser implements StreamCloser |
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{ |
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public boolean canClose(Class streamType) |
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{ |
79 | 0 | return InputStream.class.isAssignableFrom(streamType) |
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|| InputSource.class.isAssignableFrom(streamType) |
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|| StreamSource.class.isAssignableFrom(streamType) |
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|| (SAXSource.class.isAssignableFrom(streamType) && !streamType.getName().endsWith( |
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"StaxSource")); |
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} |
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public void close(Object stream) throws IOException |
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{ |
88 | 0 | if (stream instanceof InputStream) |
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{ |
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try |
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{ |
92 | 0 | ((InputStream) stream).close(); |
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} |
94 | 0 | catch (IOException e) |
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{ |
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97 | 0 | } |
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} |
99 | 0 | else if (stream instanceof InputSource) |
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{ |
101 | 0 | closeInputSourceStream((InputSource) stream); |
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} |
103 | 0 | else if (stream instanceof SAXSource) |
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{ |
105 | 0 | closeInputSourceStream(((SAXSource) stream).getInputSource()); |
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} |
107 | 0 | else if (stream instanceof StreamSource) |
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{ |
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try |
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{ |
111 | 0 | ((StreamSource) stream).getInputStream().close(); |
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} |
113 | 0 | catch (IOException e) |
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{ |
115 | 0 | } |
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} |
117 | 0 | } |
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private void closeInputSourceStream(InputSource payload) throws IOException |
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{ |
121 | 0 | if (payload.getByteStream() != null) |
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{ |
123 | 0 | payload.getByteStream().close(); |
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} |
125 | 0 | else if (payload.getCharacterStream() != null) |
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{ |
127 | 0 | payload.getCharacterStream().close(); |
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} |
129 | 0 | } |
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} |
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} |