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package org.mule.providers.streaming; |
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import org.mule.MuleManager; |
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import org.mule.umo.endpoint.UMOImmutableEndpoint; |
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import org.mule.umo.lifecycle.InitialisationException; |
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import org.mule.umo.transformer.TransformerException; |
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import org.mule.umo.transformer.UMOStreamingTransformer; |
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import org.mule.util.ClassUtils; |
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import java.io.InputStream; |
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import java.io.OutputStream; |
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import org.apache.commons.beanutils.BeanUtils; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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public abstract class AbstractStreamingTransformer implements UMOStreamingTransformer |
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{ |
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35 | 0 | protected final Log logger = LogFactory.getLog(getClass()); |
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41 | 0 | protected String name = null; |
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46 | 0 | protected UMOImmutableEndpoint endpoint = null; |
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protected UMOStreamingTransformer nextTransformer; |
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57 | 0 | private boolean ignoreBadInput = false; |
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public AbstractStreamingTransformer() |
63 | 0 | { |
64 | 0 | name = generateTransformerName(); |
65 | 0 | } |
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public String getName() |
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{ |
72 | 0 | if (name == null) |
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{ |
74 | 0 | setName(ClassUtils.getSimpleName(getClass())); |
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} |
76 | 0 | return name; |
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} |
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public void setName(String string) |
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{ |
84 | 0 | logger.debug("Setting transformer name to: " + name); |
85 | 0 | name = string; |
86 | 0 | } |
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public final Object transform(InputStream src, OutputStream dest, String encoding) |
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throws TransformerException |
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{ |
97 | 0 | if (encoding == null && endpoint != null) |
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{ |
99 | 0 | encoding = endpoint.getEncoding(); |
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} |
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103 | 0 | if (encoding == null) |
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{ |
105 | 0 | encoding = MuleManager.getConfiguration().getEncoding(); |
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} |
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108 | 0 | if (logger.isDebugEnabled()) |
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{ |
110 | 0 | logger.debug("Applying transformer " + getName() + " (" + getClass().getName() + ")"); |
111 | 0 | logger.debug("Object before transform"); |
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} |
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135 | 0 | return null; |
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} |
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public UMOImmutableEndpoint getEndpoint() |
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{ |
140 | 0 | return endpoint; |
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} |
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public void setEndpoint(UMOImmutableEndpoint endpoint) |
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{ |
150 | 0 | this.endpoint = endpoint; |
151 | 0 | UMOStreamingTransformer trans = nextTransformer; |
152 | 0 | while (trans != null && endpoint != null) |
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{ |
154 | 0 | trans.setEndpoint(endpoint); |
155 | 0 | trans = trans.getNextTransformer(); |
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} |
157 | 0 | } |
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protected abstract Object doTransform(InputStream src, OutputStream dest, String encoding) |
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throws TransformerException; |
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public UMOStreamingTransformer getNextTransformer() |
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{ |
169 | 0 | return nextTransformer; |
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} |
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public void setNextTransformer(UMOStreamingTransformer nextTransformer) |
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{ |
179 | 0 | this.nextTransformer = nextTransformer; |
180 | 0 | } |
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public Object clone() throws CloneNotSupportedException |
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{ |
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try |
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{ |
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192 | 0 | return BeanUtils.cloneBean(this); |
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} |
194 | 0 | catch (Exception e) |
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{ |
196 | 0 | throw (CloneNotSupportedException) new CloneNotSupportedException("Failed to clone transformer: " |
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+ e.getMessage()).initCause(e); |
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} |
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} |
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public void initialise() throws InitialisationException |
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{ |
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210 | 0 | } |
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protected String generateTransformerName() |
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{ |
214 | 0 | String name = getClass().getName(); |
215 | 0 | int i = name.lastIndexOf("."); |
216 | 0 | if (i > -1) |
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{ |
218 | 0 | name = name.substring(i + 1); |
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} |
220 | 0 | return name; |
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} |
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public boolean isIgnoreBadInput() |
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{ |
225 | 0 | return ignoreBadInput; |
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} |
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public void setIgnoreBadInput(boolean ignoreBadInput) |
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{ |
230 | 0 | this.ignoreBadInput = ignoreBadInput; |
231 | 0 | } |
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public String toString() |
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{ |
235 | 0 | return "StreamingTransformer{" + "name='" + name + "'" + ", ignoreBadInput=" + ignoreBadInput + "}"; |
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} |
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public boolean isAcceptNull() |
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{ |
240 | 0 | return false; |
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} |
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} |