com.wantedtech.common.xpresso.json.Json Maven / Gradle / Ivy
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package com.wantedtech.common.xpresso.json;
import java.util.Collection;
import java.util.Iterator;
import java.util.Map;
import org.antlr.v4.runtime.*;
import com.wantedtech.common.xpresso.x;
import com.wantedtech.common.xpresso.types.dict;
import com.wantedtech.common.xpresso.types.tuple;
public class Json{
String jsonString;
public Json(Object usualString, boolean isUsualString){
this.jsonString = "\"" + escape(usualString.toString()) + "\"";
}
public Json(Object o){
if (jsonString instanceof String) {
this.jsonString = jsonString.toString();
return;
}
if (o instanceof dict){
jsonString = dumps(((dict) o).toHashMap());
return;
}
jsonString = dumps(o);
}
@Override
public String toString(){
return jsonString;
}
@SuppressWarnings("unchecked")
public static O parse(String jsonString) {
// create a CharStream that reads from standard input
ANTLRInputStream inputStream = new ANTLRInputStream(jsonString);
// create a lexer that feeds off of input CharStream
JSONTreeLexer lexer = new JSONTreeLexer(inputStream);
CommonTokenStream tokens = new CommonTokenStream(lexer);
// create a parser that feeds off the tokens buffer
JSONTreeParser parser = new JSONTreeParser(tokens);
Object value = parser.value().result;
return (O)value;
}
/**
* Encode an object into JSON text and returns the generated String.
*
* @param value object to convert into JSON
* @return a {@link String} with the JSON representation of the input {@link Object}
*/
public static String dumps(Object value){
StringBuilder builder = new StringBuilder();
if(value == null){
builder.append("null");
return builder.toString();
}
if(value instanceof String){
builder.append('\"');
builder.append(escape((String)value));
builder.append('\"');
return builder.toString();
}
if(value instanceof Double){
if(((Double)value).isInfinite() || ((Double)value).isNaN())
builder.append("null");
else
builder.append(value.toString());
return builder.toString();
}
if(value instanceof Float){
if(((Float)value).isInfinite() || ((Float)value).isNaN())
builder.append("null");
else
builder.append(value.toString());
return builder.toString();
}
if(value instanceof Number){
builder.append(value.toString());
return builder.toString();
}
if(value instanceof Boolean){
builder.append(value.toString());
return builder.toString();
}
if(value instanceof Map){
builder.append(dumpsMap((Map)value));
return builder.toString();
}
if(value instanceof Collection){
builder.append(dumpsList((Collection)value));
return builder.toString();
}
if(value instanceof Iterable){
if(value instanceof dict){
builder.append(dumpsMap(((dict)value).toHashMap()));
}else{
builder.append(dumpsList((Iterable)value));
}
return builder.toString();
}
if(value instanceof byte[]){
builder.append(dumpsList((byte[])value));
return builder.toString();
}
if(value instanceof short[]){
builder.append(dumpsList((short[])value));
return builder.toString();
}
if(value instanceof int[]){
builder.append(dumpsList((int[])value));
return builder.toString();
}
if(value instanceof long[]){
builder.append(dumpsList((long[])value));
return builder.toString();
}
if(value instanceof float[]){
builder.append(dumpsList((float[])value));
return builder.toString();
}
if(value instanceof double[]){
builder.append(dumpsList((double[])value));
return builder.toString();
}
if(value instanceof boolean[]){
builder.append(dumpsList((boolean[])value));
return builder.toString();
}
if(value instanceof char[]){
builder.append(dumpsList((char[])value));
return builder.toString();
}
if(value instanceof Object[]){
builder.append(dumpsList((Object[])value));
return builder.toString();
}
builder.append(value.toString());
return builder.toString();
}
/**
* Escape quotes, \, /, \r, \n, \b, \f, \t and other control characters (U+0000 through U+001F).
* @param s {@link String} to quote
* @return quoted String
*/
public static String escape(String s){
if(s==null)
return null;
StringBuffer sb = new StringBuffer();
escape(s, sb);
return sb.toString();
}
/**
* @param s {@link String} to escape, must not be null.
* @param sb a {@link StringBuffer} (the object that will get the escaped string)
*/
static void escape(String s, StringBuffer sb) {
x.assertNotNull(s);
final int len = s.length();
for(int i=0;i='\u0000' && ch<='\u001F') || (ch>='\u007F' && ch<='\u009F') || (ch>='\u2000' && ch<='\u20FF')){
String ss=Integer.toHexString(ch);
sb.append("\\u");
for(int k=0;k<4-ss.length();k++){
sb.append('0');
}
sb.append(ss.toUpperCase());
}
else{
sb.append(ch);
}
}
}
}
/**
* Encode a list into JSON text and return the {@link String} with encoded object.
*
* @param the type of values of the input {@link Iterable}
* @param iterable An {@link Iterable} to encode into JSON format
* @return the {@link String} with the JSON representation of the input Iterable
*/
public static String dumpsList(Iterable iterable){
if(iterable == null){
return ("null");
}
boolean first = true;
Iterator iter=iterable.iterator();
StringBuilder builder = new StringBuilder();
builder.append("[");
while(iter.hasNext()){
if(first)
first = false;
else
builder.append(",");
Object value=iter.next();
if(value == null){
builder.append("null");
continue;
}
builder.append(dumps(value));
}
builder.append("]");
return builder.toString();
}
public static String dumpsList(tuple tuple){
if(tuple == null){
return ("null");
}
StringBuilder builder = new StringBuilder();
builder.append("[");
try{
builder.append(dumps(tuple.get(0)));
Object anotherValue = tuple.get(1);
builder.append(",");
builder.append(anotherValue);
anotherValue = tuple.get(2);
builder.append(",");
builder.append(anotherValue);
anotherValue = tuple.get(3);
builder.append(",");
builder.append(anotherValue);
anotherValue = tuple.get(4);
builder.append(",");
builder.append(anotherValue);
anotherValue = tuple.get(5);
builder.append(",");
builder.append(anotherValue);
anotherValue = tuple.get(6);
builder.append(",");
builder.append(anotherValue);
anotherValue = tuple.get(7);
builder.append(",");
builder.append(anotherValue);
anotherValue = tuple.get(8);
builder.append(",");
builder.append(anotherValue);
anotherValue = tuple.get(9);
builder.append(",");
builder.append(anotherValue);
}catch(Exception e0){
e0.printStackTrace();
}
builder.append("]");
return builder.toString();
}
public static String dumpsList(byte[] array){
StringBuilder builder = new StringBuilder();
if(array == null){
builder.append("null");
} else if(array.length == 0) {
builder.append("[]");
} else {
builder.append("[");
builder.append(String.valueOf(array[0]));
for(int i = 1; i < array.length; i++){
builder.append(",");
builder.append(String.valueOf(array[i]));
}
builder.append("]");
}
return builder.toString();
}
public static String dumpsList(short[] array){
StringBuilder builder = new StringBuilder();
if(array == null){
builder.append("null");
} else if(array.length == 0) {
builder.append("[]");
} else {
builder.append("[");
builder.append(String.valueOf(array[0]));
for(int i = 1; i < array.length; i++){
builder.append(",");
builder.append(String.valueOf(array[i]));
}
builder.append("]");
}
return builder.toString();
}
public static String dumpsList(int[] array){
StringBuilder builder = new StringBuilder();
if(array == null){
builder.append("null");
} else if(array.length == 0) {
builder.append("[]");
} else {
builder.append("[");
builder.append(String.valueOf(array[0]));
for(int i = 1; i < array.length; i++){
builder.append(",");
builder.append(String.valueOf(array[i]));
}
builder.append("]");
}
return builder.toString();
}
public static String dumpsList(long[] array){
StringBuilder builder = new StringBuilder();
if(array == null){
builder.append("null");
} else if(array.length == 0) {
builder.append("[]");
} else {
builder.append("[");
builder.append(String.valueOf(array[0]));
for(int i = 1; i < array.length; i++){
builder.append(",");
builder.append(String.valueOf(array[i]));
}
builder.append("]");
}
return builder.toString();
}
public static String dumpsList(float[] array){
StringBuilder builder = new StringBuilder();
if(array == null){
builder.append("null");
} else if(array.length == 0) {
builder.append("[]");
} else {
builder.append("[");
builder.append(String.valueOf(array[0]));
for(int i = 1; i < array.length; i++){
builder.append(",");
builder.append(String.valueOf(array[i]));
}
builder.append("]");
}
return builder.toString();
}
public static String dumpsList(double[] array){
StringBuilder builder = new StringBuilder();
if(array == null){
builder.append("null");
} else if(array.length == 0) {
builder.append("[]");
} else {
builder.append("[");
builder.append(String.valueOf(array[0]));
for(int i = 1; i < array.length; i++){
builder.append(",");
builder.append(String.valueOf(array[i]));
}
builder.append("]");
}
return builder.toString();
}
public static String dumpsList(boolean[] array){
StringBuilder builder = new StringBuilder();
if(array == null){
builder.append("null");
} else if(array.length == 0) {
builder.append("[]");
} else {
builder.append("[");
builder.append(String.valueOf(array[0]));
for(int i = 1; i < array.length; i++){
builder.append(",");
builder.append(String.valueOf(array[i]));
}
builder.append("]");
}
return builder.toString();
}
public static String dumpsList(char[] array){
StringBuilder builder = new StringBuilder();
if(array == null){
builder.append("null");
} else if(array.length == 0) {
builder.append("[]");
} else {
builder.append("[\"");
builder.append(String.valueOf(array[0]));
for(int i = 1; i < array.length; i++){
builder.append("\",\"");
builder.append(String.valueOf(array[i]));
}
builder.append("\"]");
}
return builder.toString();
}
public static String dumpsList(Object[] array){
StringBuilder builder = new StringBuilder();
if(array == null){
builder.append("null");
} else if(array.length == 0) {
builder.append("[]");
} else {
builder.append("[");
builder.append(dumps(array[0]));
for(int i = 1; i < array.length; i++){
builder.append(",");
builder.append(dumps(array[i]));
}
builder.append("]");
}
return builder.toString();
}
/**
* Encode a map into JSON text
*
* @param map a {@link Map} object
* @return a {@link String} with the JSON representation of the input {@link Map}
*/
public static String dumpsMap(Map map) {
StringBuilder builder = new StringBuilder();
if(map == null){
builder.append("null");
return builder.toString();
}
boolean first = true;
Iterator iter=map.entrySet().iterator();
builder.append('{');
while(iter.hasNext()){
if(first)
first = false;
else
builder.append(',');
Map.Entry entry=(Map.Entry)iter.next();
builder.append('\"');
builder.append(escape(String.valueOf(entry.getKey())));
builder.append('\"');
builder.append(':');
builder.append(dumps(entry.getValue()));
}
builder.append('}');
return builder.toString();
}
}