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package org.mule.transformers.simple; |
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import org.mule.transformers.AbstractTransformer; |
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import org.mule.umo.transformer.TransformerException; |
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import java.util.Collection; |
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import java.util.Iterator; |
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import java.util.Map; |
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public class ObjectToString extends AbstractTransformer |
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{ |
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protected static final int DEFAULT_BUFFER_SIZE = 80; |
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protected static final String NULL_DESCRIPTION = "null"; |
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public ObjectToString() |
31 | 16 | { |
32 | 20 | registerSourceType(Object.class); |
33 | 16 | setReturnClass(String.class); |
34 | 16 | } |
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public Object doTransform(Object src, String encoding) throws TransformerException |
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{ |
38 | 8 | String output = ""; |
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40 | 8 | if (src instanceof Map) |
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{ |
42 | 4 | Iterator iter = ((Map) src).entrySet().iterator(); |
43 | 4 | if (iter.hasNext()) |
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{ |
45 | 4 | StringBuffer b = new StringBuffer(DEFAULT_BUFFER_SIZE); |
46 | 12 | while (iter.hasNext()) |
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{ |
48 | 8 | Map.Entry e = (Map.Entry) iter.next(); |
49 | 8 | Object key = e.getKey(); |
50 | 8 | Object value = e.getValue(); |
51 | 8 | b.append(key.toString()).append(':'); |
52 | 8 | if (value != null) |
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{ |
54 | 4 | b.append(value.toString()); |
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} |
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else |
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{ |
58 | 4 | b.append(NULL_DESCRIPTION); |
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} |
60 | 8 | if (iter.hasNext()) |
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{ |
62 | 4 | b.append('|'); |
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} |
64 | 8 | } |
65 | 4 | output = b.toString(); |
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} |
67 | 4 | } |
68 | 4 | else if (src instanceof Collection) |
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{ |
70 | 4 | Iterator iter = ((Collection) src).iterator(); |
71 | 4 | if (iter.hasNext()) |
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{ |
73 | 4 | StringBuffer b = new StringBuffer(DEFAULT_BUFFER_SIZE); |
74 | 16 | while (iter.hasNext()) |
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{ |
76 | 12 | Object value = iter.next(); |
77 | 12 | if (value != null) |
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{ |
79 | 8 | b.append(value.toString()); |
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} |
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else |
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{ |
83 | 4 | b.append(NULL_DESCRIPTION); |
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} |
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86 | 12 | if (iter.hasNext()) |
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{ |
88 | 8 | b.append('|'); |
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} |
90 | 12 | } |
91 | 4 | output = b.toString(); |
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} |
93 | 4 | } |
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else |
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{ |
96 | 0 | output = src.toString(); |
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} |
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99 | 8 | return output; |
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} |
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} |