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package org.mule.transformer.wire; |
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import org.mule.api.DefaultMuleException; |
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import org.mule.api.MuleContext; |
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import org.mule.api.MuleException; |
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import org.mule.api.transformer.Transformer; |
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import org.mule.api.transformer.TransformerException; |
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import org.mule.api.transformer.wire.WireFormat; |
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import org.mule.config.i18n.CoreMessages; |
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import org.mule.transformer.types.DataTypeFactory; |
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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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|
36 | 0 | public class TransformerPairWireFormat implements WireFormat |
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{ |
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|
41 | 0 | protected transient Log logger = LogFactory.getLog(getClass()); |
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protected Transformer inboundTransformer; |
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protected Transformer outboundTransformer; |
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protected MuleContext muleContext; |
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public void setMuleContext(MuleContext context) |
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{ |
49 | 0 | this.muleContext = context; |
50 | 0 | inboundTransformer.setMuleContext(muleContext); |
51 | 0 | outboundTransformer.setMuleContext(muleContext); |
52 | 0 | } |
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public Object read(InputStream in) throws MuleException |
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{ |
56 | 0 | if (inboundTransformer == null) |
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{ |
58 | 0 | throw new IllegalArgumentException(CoreMessages.objectIsNull("inboundTransformer").getMessage()); |
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} |
60 | 0 | if (inboundTransformer.isSourceDataTypeSupported(DataTypeFactory.INPUT_STREAM)) |
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{ |
62 | 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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{ |
68 | 0 | ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
69 | 0 | IOUtils.copy(in, baos); |
70 | 0 | return inboundTransformer.transform(baos.toByteArray()); |
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} |
72 | 0 | catch (IOException e) |
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{ |
74 | 0 | throw new DefaultMuleException(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, String encoding) throws MuleException |
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{ |
81 | 0 | if (outboundTransformer == null) |
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{ |
83 | 0 | throw new IllegalArgumentException(CoreMessages.objectIsNull("outboundTransformer").getMessage()); |
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} |
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try |
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{ |
87 | 0 | Class returnClass = outboundTransformer.getReturnClass(); |
88 | 0 | if (returnClass == null) |
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{ |
90 | 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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|
93 | 0 | Object result = outboundTransformer.transform(o); |
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byte[] bytes; |
96 | 0 | if (result instanceof byte[]) |
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{ |
98 | 0 | bytes = (byte[]) result; |
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} |
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else |
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{ |
102 | 0 | bytes = result.toString().getBytes(encoding); |
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} |
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|
105 | 0 | out.write(bytes); |
106 | 0 | } |
107 | 0 | else if (returnClass.equals(byte[].class)) |
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{ |
109 | 0 | byte[] b = (byte[]) outboundTransformer.transform(o); |
110 | 0 | out.write(b); |
111 | 0 | } |
112 | 0 | else if (returnClass.equals(String.class)) |
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{ |
114 | 0 | String s = (String) outboundTransformer.transform(o); |
115 | 0 | out.write(s.getBytes(encoding)); |
116 | 0 | } |
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else |
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{ |
119 | 0 | throw new TransformerException(CoreMessages.transformFailedFrom(o.getClass())); |
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} |
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} |
122 | 0 | catch (IOException e) |
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{ |
124 | 0 | throw new TransformerException(CoreMessages.transformFailedFrom(o.getClass()), e); |
125 | 0 | } |
126 | 0 | } |
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|
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public Transformer getInboundTransformer() |
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{ |
130 | 0 | return inboundTransformer; |
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} |
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|
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public void setInboundTransformer(Transformer inboundTransformer) |
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{ |
135 | 0 | this.inboundTransformer = inboundTransformer; |
136 | 0 | } |
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public Transformer getOutboundTransformer() |
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{ |
140 | 0 | return outboundTransformer; |
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} |
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public void setOutboundTransformer(Transformer outboundTransformer) |
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{ |
145 | 0 | this.outboundTransformer = outboundTransformer; |
146 | 0 | } |
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} |