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package org.mule.transport.http.transformers; |
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import org.mule.api.MuleMessage; |
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import org.mule.api.transformer.TransformerException; |
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import org.mule.transformer.AbstractMessageTransformer; |
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import org.mule.transformer.types.DataTypeFactory; |
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import org.mule.transport.http.HttpConstants; |
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import org.mule.util.StringUtils; |
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import java.io.UnsupportedEncodingException; |
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import java.net.URI; |
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import java.net.URLDecoder; |
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import java.util.Arrays; |
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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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public class HttpRequestBodyToParamMap extends AbstractMessageTransformer |
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{ |
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public HttpRequestBodyToParamMap() |
31 | 0 | { |
32 | 0 | registerSourceType(DataTypeFactory.OBJECT); |
33 | 0 | setReturnDataType(DataTypeFactory.OBJECT); |
34 | 0 | } |
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|
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@Override |
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public Object transformMessage(MuleMessage message, String outputEncoding) throws TransformerException |
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{ |
39 | 0 | Map<String, Object> paramMap = new HashMap<String, Object>(); |
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|
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try |
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{ |
43 | 0 | String httpMethod = message.getInboundProperty("http.method"); |
44 | 0 | String contentType = message.getInboundProperty("Content-Type"); |
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|
46 | 0 | boolean isGet = HttpConstants.METHOD_GET.equalsIgnoreCase(httpMethod); |
47 | 0 | boolean isPost = HttpConstants.METHOD_POST.equalsIgnoreCase(httpMethod); |
48 | 0 | boolean isUrlEncoded = false; |
49 | 0 | if (contentType != null) |
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{ |
51 | 0 | isUrlEncoded = contentType.startsWith("application/x-www-form-urlencoded"); |
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} |
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|
54 | 0 | if (!(isGet || (isPost && isUrlEncoded))) |
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{ |
56 | 0 | throw new Exception("The HTTP method or content type is unsupported!"); |
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} |
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|
59 | 0 | String queryString = null; |
60 | 0 | if (isGet) |
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{ |
62 | 0 | URI uri = new URI(message.getPayloadAsString(outputEncoding)); |
63 | 0 | queryString = uri.getRawQuery(); |
64 | 0 | } |
65 | 0 | else if (isPost) |
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{ |
67 | 0 | queryString = new String(message.getPayloadAsBytes()); |
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} |
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|
70 | 0 | if (StringUtils.isNotBlank(queryString)) |
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{ |
72 | 0 | addQueryStringToParameterMap(queryString, paramMap, outputEncoding); |
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} |
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} |
75 | 0 | catch (Exception e) |
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{ |
77 | 0 | throw new TransformerException(this, e); |
78 | 0 | } |
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|
80 | 0 | return paramMap; |
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} |
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protected void addQueryStringToParameterMap(String queryString, Map<String, Object> paramMap, |
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String outputEncoding) throws UnsupportedEncodingException |
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{ |
86 | 0 | String[] pairs = queryString.split("&"); |
87 | 0 | for (String pair : pairs) |
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{ |
89 | 0 | String[] nameValue = pair.split("="); |
90 | 0 | if (nameValue.length == 2) |
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{ |
92 | 0 | String key = URLDecoder.decode(nameValue[0], outputEncoding); |
93 | 0 | String value = URLDecoder.decode(nameValue[1], outputEncoding); |
94 | 0 | addToParameterMap(paramMap, key, value); |
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} |
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} |
97 | 0 | } |
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@SuppressWarnings("unchecked") |
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protected void addToParameterMap(Map<String, Object> paramMap, String key, String value) |
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{ |
102 | 0 | Object existingValue = paramMap.get(key); |
103 | 0 | if (existingValue != null) |
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{ |
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List<Object> values; |
106 | 0 | if (existingValue instanceof List<?>) |
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{ |
108 | 0 | values = (List<Object>) existingValue; |
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} |
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else |
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{ |
112 | 0 | values = Arrays.asList(existingValue); |
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} |
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|
115 | 0 | values.add(value); |
116 | 0 | paramMap.put(key, values); |
117 | 0 | } |
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else |
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{ |
120 | 0 | paramMap.put(key, value); |
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} |
122 | 0 | } |
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|
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@Override |
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public boolean isAcceptNull() |
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{ |
127 | 0 | return false; |
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} |
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} |