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/*
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*
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* and Distribution License("CDDL") (collectively, the "License"). You
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* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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// Portions Copyright [2017-2021] Payara Foundation and/or affiliates
package org.glassfish.admin.rest.client.utils;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.logging.Level;
import jakarta.json.Json;
import jakarta.json.JsonArray;
import jakarta.json.JsonException;
import jakarta.json.JsonNumber;
import jakarta.json.JsonObject;
import jakarta.json.JsonString;
import jakarta.json.JsonValue;
import jakarta.json.stream.JsonParser;
import org.glassfish.api.logging.LogHelper;
/**
* Methods for processing JSON
* @author jdlee
* @author jcoustick
* @see org.glassfish.admin.rest.utils.JsonUtil
*/
public class Util {
/**
* Converts a String of JSON data into a map
* If there is an error then an empty Map will be returned.
* @param json
* @return A {@link Map} of {@link String} || {@link Number}
*/
public static Map processJsonMap(String json) {
Map map;
try (JsonParser parser = Json.createParser(new StringReader(json))) {
if (parser.hasNext()){
parser.next();
map = processJsonObject(parser.getObject());
} else {
map = new HashMap<>();
}
} catch (JsonException e) {
map = new HashMap<>();
}
return map;
}
/**
* Converts a {@link JsonObject} into a {@link Map}
*
* The {@link Map} entries can be of types {@link Boolean}, {@link List},
* {@link Map}, {@link Number}, {@code null} and/or {@link String}.
*
* @param jsonObject
* @return
*/
public static Map processJsonObject(JsonObject jsonObject) {
Map map = new HashMap<>();
try {
for (String key : jsonObject.keySet()) {
JsonValue value = jsonObject.get(key);
switch (value.getValueType()) {
case ARRAY:
map.put(key, processJsonArray((JsonArray) value));
break;
case OBJECT:
map.put(key, processJsonObject((JsonObject) value));
break;
case NULL:
map.put(key, null);break;
case STRING:
map.put(key, ((JsonString) value).getString());
break;
case NUMBER:
map.put(key, ((JsonNumber) value).numberValue());
break;
case TRUE:
map.put(key, Boolean.TRUE);
break;
case FALSE:
map.put(key, Boolean.FALSE);
break;
default:
map.put(key, value);
break;
}
}
} catch (JsonException e) {
LogHelper.log(RestClientLogging.logger, Level.SEVERE, RestClientLogging.REST_CLIENT_JSON_ERROR, e);
}
return map;
}
/**
* Converts a {@link JsonArray} into a {@link List}
*
* The {@link List} entries can be of types {@link Boolean}, {@link List},
* {@link Map}, {@link Number} and/or {@link String}.
*
* @param jsonArray
* @return
*/
public static List processJsonArray(JsonArray jsonArray) {
List results = new ArrayList();
try {
for (JsonValue entry: jsonArray) {
if (null == entry.getValueType()) {
results.add(entry);
} else switch (entry.getValueType()) {
case ARRAY:
results.add(processJsonArray((JsonArray) entry));break;
case OBJECT:
results.add(processJsonObject((JsonObject) entry));break;
case STRING:
results.add(((JsonString) entry).getString());break;
case NUMBER:
results.add(((JsonNumber) entry).numberValue());break;
case TRUE:
results.add(Boolean.TRUE);break;
case FALSE:
results.add(Boolean.FALSE);break;
default:
results.add(entry);break;
}
}
} catch (JsonException e) {
LogHelper.log(RestClientLogging.logger, Level.SEVERE, RestClientLogging.REST_CLIENT_JSON_ERROR, e);
}
return results;
}
}