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package org.mule.transformers.xml; |
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import org.mule.config.i18n.MessageFactory; |
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import org.mule.transformers.AbstractEventAwareTransformer; |
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import org.mule.umo.transformer.TransformerException; |
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import com.thoughtworks.xstream.XStream; |
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import java.util.ArrayList; |
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import java.util.HashMap; |
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import java.util.List; |
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import java.util.Map; |
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import edu.emory.mathcs.backport.java.util.concurrent.atomic.AtomicReference; |
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31 | 58 | public abstract class AbstractXStreamTransformer extends AbstractEventAwareTransformer |
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{ |
33 | 58 | private final AtomicReferencexstream = new AtomicReference(); |
34 | 58 | private volatile String driverClassName = XStreamFactory.XSTREAM_XPP_DRIVER; |
35 | 58 | private volatile Map aliases = null; |
36 | 58 | private volatile List converters = null; |
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public final XStream getXStream() throws TransformerException |
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{ |
40 | 38 | XStream instance = (XStream) xstream.get(); |
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42 | 38 | if (instance == null) |
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{ |
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try |
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{ |
46 | 36 | instance = new XStreamFactory(driverClassName, aliases, converters).getInstance(); |
47 | 34 | if (!xstream.compareAndSet(null, instance)) |
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{ |
49 | 0 | instance = (XStream)xstream.get(); |
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} |
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} |
52 | 2 | catch (Exception e) |
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{ |
54 | 2 | throw new TransformerException(MessageFactory.createStaticMessage("Unable to initialize XStream"), e); |
55 | 34 | } |
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} |
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58 | 36 | return instance; |
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} |
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public Object clone() throws CloneNotSupportedException |
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{ |
63 | 6 | AbstractXStreamTransformer clone = (AbstractXStreamTransformer) super.clone(); |
64 | 6 | clone.setDriverClassName(driverClassName); |
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66 | 6 | if (aliases != null) |
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{ |
68 | 0 | clone.setAliases(new HashMap(aliases)); |
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} |
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71 | 6 | if (converters != null) |
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{ |
73 | 0 | clone.setConverters(new ArrayList(converters)); |
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} |
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76 | 6 | return clone; |
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} |
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public String getDriverClassName() |
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{ |
81 | 12 | return driverClassName; |
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} |
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public void setDriverClassName(String driverClassName) |
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{ |
86 | 16 | this.driverClassName = driverClassName; |
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88 | 16 | this.xstream.set(null); |
89 | 16 | } |
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public Map getAliases() |
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{ |
93 | 12 | return aliases; |
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} |
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public void setAliases(Map aliases) |
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{ |
98 | 6 | this.aliases = aliases; |
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100 | 6 | this.xstream.set(null); |
101 | 6 | } |
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public List getConverters() |
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{ |
105 | 12 | return converters; |
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} |
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public void setConverters(List converters) |
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{ |
110 | 6 | this.converters = converters; |
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112 | 6 | this.xstream.set(null); |
113 | 6 | } |
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protected boolean requiresCurrentEvent() |
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{ |
117 | 0 | return false; |
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} |
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} |