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package org.mule.module.json.transformers; |
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import org.mule.api.MuleMessage; |
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import org.mule.api.lifecycle.InitialisationException; |
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import org.mule.api.transformer.DataType; |
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import org.mule.api.transformer.TransformerException; |
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import org.mule.config.i18n.CoreMessages; |
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import org.mule.module.json.JsonData; |
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import org.mule.transformer.types.DataTypeFactory; |
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import org.mule.util.IOUtils; |
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import java.io.ByteArrayInputStream; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.InputStream; |
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import java.io.InputStreamReader; |
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import java.io.Reader; |
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import java.net.URL; |
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import java.util.HashMap; |
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import java.util.Map; |
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public class JsonToObject extends AbstractJsonTransformer |
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{ |
36 | 0 | private static final DataType<JsonData> JSON_TYPE = DataTypeFactory.create(JsonData.class); |
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38 | 0 | private Map<Class<?>, Class<?>> deserializationMixins = new HashMap<Class<?>, Class<?>>(); |
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public JsonToObject() |
41 | 0 | { |
42 | 0 | this.registerSourceType(DataTypeFactory.create(Reader.class)); |
43 | 0 | this.registerSourceType(DataTypeFactory.create(URL.class)); |
44 | 0 | this.registerSourceType(DataTypeFactory.create(File.class)); |
45 | 0 | this.registerSourceType(DataTypeFactory.STRING); |
46 | 0 | this.registerSourceType(DataTypeFactory.INPUT_STREAM); |
47 | 0 | this.registerSourceType(DataTypeFactory.BYTE_ARRAY); |
48 | 0 | setReturnDataType(JSON_TYPE); |
49 | 0 | } |
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@Override |
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public void initialise() throws InitialisationException |
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{ |
54 | 0 | super.initialise(); |
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|
56 | 0 | for (Map.Entry<Class<?>, Class<?>> entry : getMixins().entrySet()) |
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{ |
58 | 0 | getMapper().getDeserializationConfig().addMixInAnnotations(entry.getKey(), entry.getValue()); |
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} |
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61 | 0 | for (Map.Entry<Class<?>, Class<?>> entry : deserializationMixins.entrySet()) |
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{ |
63 | 0 | getMapper().getDeserializationConfig().addMixInAnnotations(entry.getKey(), entry.getValue()); |
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} |
65 | 0 | } |
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@Override |
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public Object transformMessage(MuleMessage message, String outputEncoding) throws TransformerException |
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{ |
70 | 0 | Object src = message.getPayload(); |
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Object returnValue; |
72 | 0 | InputStream is = null; |
73 | 0 | Reader reader = null; |
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|
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try |
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{ |
77 | 0 | if (src instanceof InputStream) |
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{ |
79 | 0 | is = (InputStream) src; |
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} |
81 | 0 | else if (src instanceof File) |
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{ |
83 | 0 | is = new FileInputStream((File) src); |
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} |
85 | 0 | else if (src instanceof URL) |
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{ |
87 | 0 | is = ((URL) src).openStream(); |
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} |
89 | 0 | else if (src instanceof byte[]) |
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{ |
91 | 0 | is = new ByteArrayInputStream((byte[]) src); |
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} |
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|
94 | 0 | if (src instanceof Reader) |
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{ |
96 | 0 | if (getReturnDataType().equals(JSON_TYPE)) |
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{ |
98 | 0 | returnValue = new JsonData((Reader) src); |
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} |
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else |
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{ |
102 | 0 | returnValue = getMapper().readValue((Reader) src, getReturnDataType().getType()); |
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} |
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} |
105 | 0 | else if (src instanceof String) |
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{ |
107 | 0 | if (getReturnDataType().equals(JSON_TYPE)) |
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{ |
109 | 0 | returnValue = new JsonData((String) src); |
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} |
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else |
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{ |
113 | 0 | returnValue = getMapper().readValue((String) src, getReturnDataType().getType()); |
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} |
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} |
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else |
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{ |
118 | 0 | reader = new InputStreamReader(is, outputEncoding); |
119 | 0 | if (getReturnDataType().equals(JSON_TYPE)) |
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{ |
121 | 0 | returnValue = new JsonData(reader); |
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} |
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else |
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{ |
125 | 0 | returnValue = getMapper().readValue(reader, getReturnDataType().getType()); |
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} |
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} |
128 | 0 | return returnValue; |
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} |
130 | 0 | catch (Exception e) |
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{ |
132 | 0 | throw new TransformerException(CoreMessages.transformFailed("json", |
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getReturnDataType().getType().getName()), this, e); |
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} |
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finally |
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{ |
137 | 0 | IOUtils.closeQuietly(reader); |
138 | 0 | IOUtils.closeQuietly(is); |
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} |
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} |
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public Map<Class<?>, Class<?>> getDeserializationMixins() |
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{ |
144 | 0 | return deserializationMixins; |
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} |
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public void setDeserializationMixins(Map<Class<?>, Class<?>> deserializationMixins) |
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{ |
149 | 0 | this.deserializationMixins = deserializationMixins; |
150 | 0 | } |
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} |