smolnar82 commented on a change in pull request #296: KNOX-2240 - KnoxShell
Custom Command for WEBHDFS Use
URL: https://github.com/apache/knox/pull/296#discussion_r396257126
##########
File path:
gateway-shell/src/main/java/org/apache/knox/gateway/shell/KnoxSession.java
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@@ -705,6 +734,15 @@ private static String readFileToString(File file) throws
IOException {
return obj;
}
+ public static <T> Map<String, T> getMapFromJsonString(String json) throws
IOException {
+ Map<String, T> obj;
+ JsonFactory factory = new JsonFactory();
+ ObjectMapper mapper = new ObjectMapper(factory);
+ TypeReference<Map<String, T>> typeRef = new TypeReference<Map<String,
T>>() {};
+ obj = mapper.readValue(json, typeRef);
+ return obj;
+ }
+
Review comment:
Knox already provides this utility function:
`org.apache.knox.gateway.util.JsonUtils.getMapFromJsonString(String)`
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