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package org.mule.transformers.wire; |
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import org.mule.MuleException; |
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import org.mule.MuleManager; |
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import org.mule.config.i18n.CoreMessages; |
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import org.mule.umo.UMOException; |
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import org.mule.umo.transformer.TransformerException; |
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import org.mule.umo.transformer.UMOTransformer; |
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import org.mule.util.IOUtils; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.OutputStream; |
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import org.apache.commons.io.output.ByteArrayOutputStream; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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|
32 | 0 | public class TransformerPairWireFormat implements WireFormat |
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{ |
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|
38 | 0 | protected transient Log logger = LogFactory.getLog(getClass()); |
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protected UMOTransformer inboundTransformer; |
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protected UMOTransformer outboundTransformer; |
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public Object read(InputStream in) throws UMOException |
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{ |
45 | 0 | if (inboundTransformer == null) |
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{ |
47 | 0 | throw new IllegalArgumentException(CoreMessages.objectIsNull("inboundTransformer").getMessage()); |
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} |
49 | 0 | if (inboundTransformer.isSourceTypeSupported(InputStream.class)) |
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{ |
51 | 0 | return inboundTransformer.transform(in); |
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} |
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else |
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{ |
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try |
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{ |
57 | 0 | ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
58 | 0 | IOUtils.copy(in, baos); |
59 | 0 | return inboundTransformer.transform(baos.toByteArray()); |
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} |
61 | 0 | catch (IOException e) |
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{ |
63 | 0 | throw new MuleException(CoreMessages.failedToReadPayload(), e); |
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} |
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} |
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} |
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public void write(OutputStream out, Object o) throws UMOException |
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{ |
70 | 0 | if (outboundTransformer == null) |
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{ |
72 | 0 | throw new IllegalArgumentException(CoreMessages.objectIsNull("outboundTransformer").getMessage()); |
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} |
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try |
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{ |
76 | 0 | Class returnClass = outboundTransformer.getReturnClass(); |
77 | 0 | if (returnClass == null) |
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{ |
79 | 0 | logger.warn("No return class was set on transformer: " + outboundTransformer |
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+ ". Attempting to work out how to treat the result transformation"); |
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|
82 | 0 | Object result = outboundTransformer.transform(o); |
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byte[] bytes; |
85 | 0 | if (result instanceof byte[]) |
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{ |
87 | 0 | bytes = (byte[]) result; |
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} |
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else |
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{ |
91 | 0 | bytes = result.toString().getBytes(MuleManager.getConfiguration().getEncoding()); |
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} |
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|
94 | 0 | out.write(bytes); |
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} |
96 | 0 | else if (returnClass.equals(byte[].class)) |
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{ |
98 | 0 | byte[] b = (byte[]) outboundTransformer.transform(o); |
99 | 0 | out.write(b); |
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} |
101 | 0 | else if (returnClass.equals(String.class)) |
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{ |
103 | 0 | String s = (String) outboundTransformer.transform(o); |
104 | 0 | out.write(s.getBytes(MuleManager.getConfiguration().getEncoding())); |
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} |
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else |
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{ |
108 | 0 | throw new TransformerException(CoreMessages.transformFailedFrom(o.getClass())); |
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} |
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} |
111 | 0 | catch (IOException e) |
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{ |
113 | 0 | throw new TransformerException(CoreMessages.transformFailedFrom(o.getClass()), e); |
114 | 0 | } |
115 | 0 | } |
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public UMOTransformer getInboundTransformer() |
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{ |
119 | 0 | return inboundTransformer; |
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} |
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|
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public void setInboundTransformer(UMOTransformer inboundTransformer) |
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{ |
124 | 0 | this.inboundTransformer = inboundTransformer; |
125 | 0 | } |
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public UMOTransformer getOutboundTransformer() |
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{ |
129 | 0 | return outboundTransformer; |
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} |
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public void setOutboundTransformer(UMOTransformer outboundTransformer) |
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{ |
134 | 0 | this.outboundTransformer = outboundTransformer; |
135 | 0 | } |
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} |