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/*-
* ============LICENSE_START=======================================================
* PROJECT
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============LICENSE_END=========================================================
*/
package org.onap.dcae.commonFunction;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map.Entry;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonIOException;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.google.gson.JsonSyntaxException;
public class CustomExceptionLoader {
protected static HashMap<String, JsonArray> map = null;
private static final Logger log = LoggerFactory.getLogger(CustomExceptionLoader.class);
// For standalone test
// LoadMap Invoked from servletSetup
/*
* public static void main(String[] args) {
*
* System.out.
* println("CustomExceptionLoader.main --> Arguments -- ExceptionConfig file: "
* + args[0] + "StatusCode:" + args[1]+ " Error Msg:" + args[2]);
* CommonStartup.exceptionConfig = args[0];
*
* //Read the Custom exception JSON file into map LoadMap(); System.out.
* println("CustomExceptionLoader.main --> Map info post LoadMap:" + map);
*
* String[] str= LookupMap(args[1],args[2]); if (! (str==null)) {
* System.out.
* println("CustomExceptionLoader.main --> Return from lookup function" +
* str[0] + "value:" + str[1]); }
*
* }
*/
public static void LoadMap() {
map = new HashMap<String, JsonArray>();
FileReader fr = null;
try {
JsonElement root = null;
fr = new FileReader(CommonStartup.exceptionConfig);
root = new JsonParser().parse(fr);
JsonObject jsonObject = root.getAsJsonObject().get("code").getAsJsonObject();
for (Entry<String, JsonElement> entry : jsonObject.entrySet()) {
map.put(entry.getKey(), (JsonArray) entry.getValue());
}
log.debug("CustomExceptionLoader.LoadMap --> Map loaded - " + map);
} catch (JsonIOException | JsonSyntaxException | FileNotFoundException e) {
log.error("Exception in LoadMap:" + e.getMessage());
map = null;
} finally {
if (fr != null) {
try {
fr.close();
} catch (IOException e) {
log.error("Error closing file reader stream : " + e.toString());
map = null;
}
}
}
}
public static String[] LookupMap(String error, String errormsg) {
String[] retarray = null;
log.debug("CustomExceptionLoader.LookupMap -->" + " HTTP StatusCode:" + error + " Msg:" + errormsg);
try {
JsonArray jarray = map.get(error);
for (int i = 0; i < jarray.size(); i++) {
JsonElement val = jarray.get(i).getAsJsonObject().get("Reason");
JsonArray ec = (JsonArray) jarray.get(i).getAsJsonObject().get("ErrorCode");
log.trace("CustomExceptionLoader.LookupMap Parameter -> Error msg : " + errormsg
+ " Reason text being matched:" + val);
if (errormsg.contains(val.toString().replace("\"", ""))) {
log.trace(
"CustomExceptionLoader.LookupMap Successful! Exception matched to error message StatusCode:"
+ ec.get(0).toString() + "ErrorMessage:" + ec.get(1).toString());
retarray = new String[2];
retarray[0] = ec.get(0).toString();
retarray[1] = ec.get(1).toString();
return retarray;
}
}
} catch (Exception e) {
System.out.println(e.getMessage());
}
return retarray;
}
}
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