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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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{ |
44 | 0 | private static final DataType<JsonData> JSON_TYPE = DataTypeFactory.create(JsonData.class); |
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46 | 0 | private Map<Class<?>, Class<?>> deserializationMixins = new HashMap<Class<?>, Class<?>>(); |
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public JsonToObject() |
49 | 0 | { |
50 | 0 | this.registerSourceType(DataTypeFactory.create(Reader.class)); |
51 | 0 | this.registerSourceType(DataTypeFactory.create(URL.class)); |
52 | 0 | this.registerSourceType(DataTypeFactory.create(File.class)); |
53 | 0 | this.registerSourceType(DataTypeFactory.STRING); |
54 | 0 | this.registerSourceType(DataTypeFactory.INPUT_STREAM); |
55 | 0 | this.registerSourceType(DataTypeFactory.BYTE_ARRAY); |
56 | 0 | setReturnDataType(JSON_TYPE); |
57 | 0 | } |
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@Override |
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public void initialise() throws InitialisationException |
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{ |
62 | 0 | super.initialise(); |
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64 | 0 | for (Map.Entry<Class<?>, Class<?>> entry : getMixins().entrySet()) |
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{ |
66 | 0 | getMapper().getDeserializationConfig().addMixInAnnotations(entry.getKey(), entry.getValue()); |
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} |
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69 | 0 | for (Map.Entry<Class<?>, Class<?>> entry : deserializationMixins.entrySet()) |
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{ |
71 | 0 | getMapper().getDeserializationConfig().addMixInAnnotations(entry.getKey(), entry.getValue()); |
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} |
73 | 0 | } |
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@Override |
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public Object transformMessage(MuleMessage message, String outputEncoding) throws TransformerException |
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{ |
78 | 0 | Object src = message.getPayload(); |
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Object returnValue; |
80 | 0 | InputStream is = null; |
81 | 0 | Reader reader = null; |
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try |
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{ |
85 | 0 | if (src instanceof InputStream) |
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{ |
87 | 0 | is = (InputStream) src; |
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} |
89 | 0 | else if (src instanceof File) |
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{ |
91 | 0 | is = new FileInputStream((File) src); |
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} |
93 | 0 | else if (src instanceof URL) |
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{ |
95 | 0 | is = ((URL) src).openStream(); |
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} |
97 | 0 | else if (src instanceof byte[]) |
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{ |
99 | 0 | is = new ByteArrayInputStream((byte[]) src); |
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} |
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102 | 0 | if (src instanceof Reader) |
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{ |
104 | 0 | if (getReturnDataType().equals(JSON_TYPE)) |
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{ |
106 | 0 | returnValue = new JsonData((Reader) src); |
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} |
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else |
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{ |
110 | 0 | returnValue = getMapper().readValue((Reader) src, getReturnDataType().getType()); |
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} |
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} |
113 | 0 | else if (src instanceof String) |
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{ |
115 | 0 | if (getReturnDataType().equals(JSON_TYPE)) |
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{ |
117 | 0 | returnValue = new JsonData((String) src); |
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} |
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else |
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{ |
121 | 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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{ |
126 | 0 | reader = new InputStreamReader(is, outputEncoding); |
127 | 0 | if (getReturnDataType().equals(JSON_TYPE)) |
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{ |
129 | 0 | returnValue = new JsonData(reader); |
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} |
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else |
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{ |
133 | 0 | returnValue = getMapper().readValue(reader, getReturnDataType().getType()); |
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} |
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} |
136 | 0 | return returnValue; |
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} |
138 | 0 | catch (Exception e) |
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{ |
140 | 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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{ |
145 | 0 | IOUtils.closeQuietly(reader); |
146 | 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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{ |
152 | 0 | return deserializationMixins; |
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} |
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public void setDeserializationMixins(Map<Class<?>, Class<?>> deserializationMixins) |
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{ |
157 | 0 | this.deserializationMixins = deserializationMixins; |
158 | 0 | } |
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} |