io.inversion.json.JSMap Maven / Gradle / Ivy
package io.inversion.json;
import io.inversion.utils.LinkedCaseInsensitiveMap;
import io.inversion.utils.Utils;
import java.util.*;
public class JSMap extends LinkedCaseInsensitiveMap implements JSNode {
/**
* Creates an empty JSNode.
*/
public JSMap() {
}
public JSMap(Map map) {
putAll(map);
}
/**
* Creates a JSNode with nameValuePairs as the initial properties.
*
* The first and every other element in nameValuePairs should be a string.
*
* @param nameValuePairs the name value pairs to add
*/
public JSMap(Object... nameValuePairs) {
putAll(Utils.asMap(nameValuePairs));
}
public Object put(Object key, Object value){
if(key == null)
return null;
values();
return put(key.toString(), value);
}
@Override
public Object removeProp(Object key) {
return remove(key);
}
//--------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------
//-- Map superclass methods required to override for compatibality
/**
* Override required to avoid concurrent modification exception
* @return
*/
@Override
public Object get(Object obj) {
if(obj == null)
return null;
if(!(obj instanceof String))
obj = obj.toString();
return super.get(obj);
}
/**
* Override required to avoid concurrent modification exception
* @return
*/
@Override
public Set keySet() {
return super.keySet();
}
/**
* Override required to convert keys to strings
* @param map
*/
@Override
public void putAll(Map map){
for(Object key : map.keySet()){
if(key != null){
put(key.toString(), map.get(key));
}
}
}
public JSMap with(Object key, Object value, Object... nvPairs){
put(key, value, nvPairs);
return this;
}
/**
* @return json string, pretty printed with properties written out in their original case.
*/
@Override
public String toString() {
return JSWriter.toJson(this, true, false);
}
@Override
public int hashCode(){
return System.identityHashCode(this);
}
//--------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------
//-- Utility Methods
/**
* Changes the property name iteration order from insertion order to alphabetic order.
*/
public JSMap sort() {
LinkedHashMap copy = new LinkedHashMap(this);
List sortedKeys = new ArrayList(keySet());
Collections.sort(sortedKeys);
clear();
sortedKeys.forEach(k -> put(k, copy.get(k)));
return this;
}
public Object putFirst(String key, Object value){
Object oldValue = get(key);
remove(key);
LinkedHashMap copy = new LinkedHashMap<>(this);
clear();
put(key, value);
putAll(copy);
return oldValue;
}
}