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package org.mule.module.xml.transformer; |
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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.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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29 | 0 | public abstract class AbstractXStreamTransformer extends AbstractMessageTransformer |
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{ |
31 | 0 | private final AtomicReferencexstream = new AtomicReference(); |
32 | 0 | private volatile String driverClass = XStreamFactory.XSTREAM_XPP_DRIVER; |
33 | 0 | private volatile Map<String, Class<?>> aliases = new HashMap<String, Class<?>>(); |
34 | 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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{ |
39 | 0 | super.initialise(); |
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try |
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{ |
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44 | 0 | XStream xStreamInstance = getXStream(); |
45 | 0 | xStreamInstance.setClassLoader(Thread.currentThread().getContextClassLoader()); |
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} |
47 | 0 | catch (TransformerException e) |
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{ |
49 | 0 | throw new InitialisationException(e, this); |
50 | 0 | } |
51 | 0 | } |
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public final XStream getXStream() throws TransformerException |
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{ |
55 | 0 | XStream instance = (XStream) xstream.get(); |
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57 | 0 | if (instance == null) |
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{ |
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try |
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{ |
61 | 0 | instance = new XStreamFactory(driverClass, aliases, converters).getInstance(); |
62 | 0 | if (!xstream.compareAndSet(null, instance)) |
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{ |
64 | 0 | instance = (XStream)xstream.get(); |
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} |
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} |
67 | 0 | catch (Exception e) |
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{ |
69 | 0 | throw new TransformerException(MessageFactory.createStaticMessage("Unable to initialize XStream"), e); |
70 | 0 | } |
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} |
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73 | 0 | return instance; |
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} |
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@Override |
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public Object clone() throws CloneNotSupportedException |
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{ |
79 | 0 | AbstractXStreamTransformer clone = (AbstractXStreamTransformer) super.clone(); |
80 | 0 | clone.setDriverClass(driverClass); |
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82 | 0 | if (aliases != null) |
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{ |
84 | 0 | clone.setAliases(new HashMap<String, Class<?>>(aliases)); |
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} |
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87 | 0 | if (converters != null) |
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{ |
89 | 0 | clone.setConverters(new HashSet<Class <? extends Converter>>(converters)); |
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} |
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92 | 0 | return clone; |
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} |
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public String getDriverClass() |
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{ |
97 | 0 | return driverClass; |
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} |
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public void setDriverClass(String driverClass) |
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{ |
102 | 0 | this.driverClass = driverClass; |
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104 | 0 | this.xstream.set(null); |
105 | 0 | } |
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public Map<String, Class<?>> getAliases() |
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{ |
109 | 0 | return aliases; |
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} |
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public void setAliases(Map<String, Class<?>> aliases) |
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{ |
114 | 0 | this.aliases = aliases; |
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116 | 0 | this.xstream.set(null); |
117 | 0 | } |
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public Set<Class <? extends Converter>> getConverters() |
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{ |
121 | 0 | return converters; |
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} |
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public void setConverters(Set<Class <? extends Converter>> converters) |
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{ |
126 | 0 | this.converters = converters; |
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128 | 0 | this.xstream.set(null); |
129 | 0 | } |
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public void addAlias(String alias, Class<?> aClass) |
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{ |
133 | 0 | aliases.put(alias, aClass); |
134 | 0 | } |
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public Class<?> removeAlias(String alias) |
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{ |
138 | 0 | return aliases.remove(alias); |
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} |
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public void addConverter(Class<? extends Converter> converterClass) |
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{ |
143 | 0 | converters.add(converterClass); |
144 | 0 | } |
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public boolean removeAlias(Class<? extends Converter> converterClass) |
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{ |
148 | 0 | return converters.remove(converterClass); |
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} |
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} |