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package org.mule.transformers.simple; |
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import org.mule.transformers.AbstractEventAwareTransformer; |
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import org.mule.umo.UMOEventContext; |
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import org.mule.umo.UMOMessage; |
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import org.mule.umo.transformer.TransformerException; |
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import java.text.MessageFormat; |
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import java.util.ArrayList; |
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import java.util.HashMap; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.Set; |
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public class MessagePropertiesTransformer extends AbstractEventAwareTransformer |
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{ |
40 | 0 | private List deleteProperties = null; |
41 | 0 | private Map addProperties = null; |
42 | 0 | private boolean overwrite = true; |
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public MessagePropertiesTransformer() |
45 | 0 | { |
46 | 0 | registerSourceType(Object.class); |
47 | 0 | setReturnClass(Object.class); |
48 | 0 | } |
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public Object clone() throws CloneNotSupportedException |
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{ |
53 | 0 | MessagePropertiesTransformer clone = (MessagePropertiesTransformer) super.clone(); |
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55 | 0 | if (deleteProperties != null) |
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{ |
57 | 0 | clone.setDeleteProperties(new ArrayList(deleteProperties)); |
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} |
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60 | 0 | if (addProperties != null) |
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{ |
62 | 0 | clone.setAddProperties(new HashMap(addProperties)); |
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} |
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65 | 0 | return clone; |
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} |
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public Object transform(Object src, String encoding, UMOEventContext context) throws TransformerException |
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{ |
70 | 0 | final UMOMessage message = context.getMessage(); |
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72 | 0 | if (deleteProperties != null && deleteProperties.size() > 0) |
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{ |
74 | 0 | for (Iterator iterator = deleteProperties.iterator(); iterator.hasNext();) |
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{ |
76 | 0 | message.removeProperty(iterator.next().toString()); |
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} |
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} |
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80 | 0 | if (addProperties != null && addProperties.size() > 0) |
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{ |
82 | 0 | final Set propertyNames = message.getPropertyNames(); |
83 | 0 | for (Iterator iterator = addProperties.entrySet().iterator(); iterator.hasNext();) |
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{ |
85 | 0 | Map.Entry entry = (Map.Entry) iterator.next(); |
86 | 0 | if (entry.getKey() == null) |
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{ |
88 | 0 | logger.error("Setting Null property keys is not supported, this entry is being ignored"); |
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} |
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else |
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{ |
92 | 0 | final String key = entry.getKey().toString(); |
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94 | 0 | final Object value = entry.getValue(); |
95 | 0 | if (overwrite) |
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{ |
97 | 0 | if (logger.isDebugEnabled()) |
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{ |
99 | 0 | if (!propertyNames.contains(key)) |
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{ |
101 | 0 | logger.debug("Overwriting message property " + key); |
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} |
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} |
104 | 0 | message.setProperty(key, value); |
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} |
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else |
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{ |
108 | 0 | if (propertyNames.contains(key)) |
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{ |
110 | 0 | if (logger.isDebugEnabled()) |
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{ |
112 | 0 | logger.debug(MessageFormat.format( |
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"Message already contains the property and overwrite is false, skipping: key={0}, value={1}", |
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new Object[] {key, value})); |
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} |
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} |
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} |
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} |
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} |
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} |
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122 | 0 | return src; |
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} |
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public List getDeleteProperties() |
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{ |
127 | 0 | return deleteProperties; |
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} |
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public void setDeleteProperties(List deleteProperties) |
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{ |
132 | 0 | this.deleteProperties = deleteProperties; |
133 | 0 | } |
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public Map getAddProperties() |
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{ |
137 | 0 | return addProperties; |
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} |
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public void setAddProperties(Map addProperties) |
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{ |
142 | 0 | this.addProperties = addProperties; |
143 | 0 | } |
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public boolean isOverwrite() |
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{ |
147 | 0 | return overwrite; |
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} |
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public void setOverwrite(final boolean overwrite) |
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{ |
152 | 0 | this.overwrite = overwrite; |
153 | 0 | } |
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} |