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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.lifecycle.InitialisationException; |
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import org.mule.api.transformer.TransformerException; |
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import org.mule.api.transformer.TransformerMessagingException; |
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import org.mule.config.i18n.MessageFactory; |
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import org.mule.transformer.AbstractMessageTransformer; |
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import com.thoughtworks.xstream.XStream; |
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import com.thoughtworks.xstream.converters.Converter; |
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import java.util.HashMap; |
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import java.util.HashSet; |
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import java.util.Map; |
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import java.util.Set; |
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import edu.emory.mathcs.backport.java.util.concurrent.atomic.AtomicReference; |
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35 | 0 | public abstract class AbstractXStreamTransformer extends AbstractMessageTransformer |
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{ |
37 | 0 | private final AtomicReferencexstream = new AtomicReference(); |
38 | 0 | private volatile String driverClass = XStreamFactory.XSTREAM_XPP_DRIVER; |
39 | 0 | private volatile Map<String, Class> aliases = new HashMap<String, Class>(); |
40 | 0 | private volatile Set<Class <? extends Converter>> converters = new HashSet<Class <? extends Converter>>(); |
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@Override |
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public void initialise() throws InitialisationException |
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{ |
45 | 0 | super.initialise(); |
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try |
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{ |
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50 | 0 | XStream xStreamInstance = getXStream(); |
51 | 0 | xStreamInstance.setClassLoader(Thread.currentThread().getContextClassLoader()); |
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} |
53 | 0 | catch (TransformerException e) |
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{ |
55 | 0 | throw new InitialisationException(e, this); |
56 | 0 | } |
57 | 0 | } |
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public final XStream getXStream() throws TransformerException |
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{ |
61 | 0 | XStream instance = (XStream) xstream.get(); |
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63 | 0 | if (instance == null) |
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{ |
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try |
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{ |
67 | 0 | instance = new XStreamFactory(driverClass, aliases, converters).getInstance(); |
68 | 0 | if (!xstream.compareAndSet(null, instance)) |
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{ |
70 | 0 | instance = (XStream)xstream.get(); |
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} |
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} |
73 | 0 | catch (Exception e) |
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{ |
75 | 0 | throw new TransformerException(MessageFactory.createStaticMessage("Unable to initialize XStream"), e); |
76 | 0 | } |
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} |
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79 | 0 | return instance; |
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} |
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public Object clone() throws CloneNotSupportedException |
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{ |
84 | 0 | AbstractXStreamTransformer clone = (AbstractXStreamTransformer) super.clone(); |
85 | 0 | clone.setDriverClass(driverClass); |
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87 | 0 | if (aliases != null) |
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{ |
89 | 0 | clone.setAliases(new HashMap<String, Class>(aliases)); |
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} |
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92 | 0 | if (converters != null) |
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{ |
94 | 0 | clone.setConverters(new HashSet<Class <? extends Converter>>(converters)); |
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} |
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97 | 0 | return clone; |
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} |
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public String getDriverClass() |
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{ |
102 | 0 | return driverClass; |
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} |
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public void setDriverClass(String driverClass) |
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{ |
107 | 0 | this.driverClass = driverClass; |
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109 | 0 | this.xstream.set(null); |
110 | 0 | } |
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public Map<String, Class> getAliases() |
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{ |
114 | 0 | return aliases; |
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} |
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public void setAliases(Map<String, Class> aliases) |
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{ |
119 | 0 | this.aliases = aliases; |
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121 | 0 | this.xstream.set(null); |
122 | 0 | } |
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public Set<Class <? extends Converter>> getConverters() |
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{ |
126 | 0 | return converters; |
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} |
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public void setConverters(Set<Class <? extends Converter>> converters) |
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{ |
131 | 0 | this.converters = converters; |
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133 | 0 | this.xstream.set(null); |
134 | 0 | } |
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public void addAlias(String alias, Class aClass) |
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{ |
138 | 0 | aliases.put(alias, aClass); |
139 | 0 | } |
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public Class removeAlias(String alias) |
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{ |
143 | 0 | return aliases.remove(alias); |
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} |
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public void addConverter(Class<? extends Converter> converterClass) |
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{ |
148 | 0 | converters.add(converterClass); |
149 | 0 | } |
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public boolean removeAlias(Class<? extends Converter> converterClass) |
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{ |
153 | 0 | return converters.remove(converterClass); |
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} |
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} |