Updated licence and moved tests to a new folder
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650e61b0f8
commit
1dba0c88aa
257 changed files with 952 additions and 536 deletions
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@ -1,5 +1,7 @@
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/*
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* Copyright (c) 2015 ezivkoc
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* The MIT License (MIT)
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*
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* Copyright (c) 2015 Ziver Koc
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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@ -22,6 +24,8 @@
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package zutil.parser.json;
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import sun.reflect.generics.reflectiveObjects.NotImplementedException;
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import zutil.ClassUtil;
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import zutil.parser.Base64Decoder;
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import zutil.parser.DataNode;
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@ -31,23 +35,54 @@ import java.lang.reflect.Array;
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import java.lang.reflect.Field;
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import java.lang.reflect.Modifier;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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public class JSONObjectInputStream extends InputStream implements ObjectInput, Closeable{
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protected static final String MD_OBJECT_ID = "@object_id";
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protected static final String MD_CLASS = "@class";
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private JSONParser parser;
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private HashMap<String, Class> registeredClasses;
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private HashMap<Integer, Object> objectCache;
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public JSONObjectInputStream(Reader in) {
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this.parser = new JSONParser(in);
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this.objectCache = new HashMap<Integer, Object>();
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this.registeredClasses = new HashMap<>();
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this.objectCache = new HashMap<>();
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}
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public Object readObject() throws IOException {
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/**
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* If no metadata is available in the stream then this
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* class will be instantiated and assigned data from the received JSON.
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*
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* @param c the Class that will be instantiated for the root JSON.
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*/
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public void registerRootClass(Class<?> c){
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registeredClasses.put(null, c);
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}
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/**
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* A object instance of the given class will be created if the specific key is seen.
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* This can be used for streams that do not have any class metadata.
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* NOTE: any meta-data in the stream will override the registered classes.
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*
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* @param key a String key that will be looked for in the InputStream
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* @param c the Class that will be instantiated for the specific key.
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*/
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public void registerClass(String key, Class<?> c){
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registeredClasses.put(key, c);
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}
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public synchronized Object readObject() throws IOException {
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try{
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DataNode root = parser.read();
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if(root != null){
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return readObject(root);
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return readObject(null, root);
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}
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// TODO: Fix Exceptions
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} catch (InstantiationException e) {
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@ -64,13 +99,25 @@ public class JSONObjectInputStream extends InputStream implements ObjectInput, C
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return null;
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}
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protected Object readObject(DataNode json) throws IllegalAccessException, InstantiationException, ClassNotFoundException, IllegalArgumentException, UnsupportedDataTypeException {
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protected Object readObject(String key, DataNode json) throws IllegalAccessException, InstantiationException, ClassNotFoundException, IllegalArgumentException, UnsupportedDataTypeException {
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// See if the Object id is in the cache before continuing
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if(json.getString("@object_id") != null && objectCache.containsKey(json.getInt("@object_id")))
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return objectCache.get(json.getInt("@object_id"));
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Class<?> objClass = Class.forName(json.getString("@class"));
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Object obj = objClass.newInstance();
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if(json.getString("@object_id") != null && objectCache.containsKey(json.getInt(MD_OBJECT_ID)))
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return objectCache.get(json.getInt(MD_OBJECT_ID));
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// Resolve the class
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Object obj = null;
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// Try using metadata
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if(json.getString(MD_CLASS) != null) {
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Class<?> objClass = Class.forName(json.getString(MD_CLASS));
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obj = objClass.newInstance();
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}
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// Search for registered classes
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else if(registeredClasses.containsKey(key)){
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Class<?> objClass = registeredClasses.get(key);
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obj = objClass.newInstance();
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}
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// Unknown Class
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else return null;
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// Read all fields from the new object instance
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for(Field field : obj.getClass().getDeclaredFields()){
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@ -79,19 +126,20 @@ public class JSONObjectInputStream extends InputStream implements ObjectInput, C
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json.get(field.getName()) != null){
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// Parse field
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field.setAccessible(true);
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field.set(obj, readValue(
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field.set(obj, readField(
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field.getType(),
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field.getName(),
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json.get(field.getName())));
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}
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}
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// Add object to the cache
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if(json.getString("@object_id") != null)
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objectCache.put(json.getInt("@object_id"), obj);
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if(json.getString(MD_OBJECT_ID) != null)
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objectCache.put(json.getInt(MD_OBJECT_ID), obj);
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return obj;
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}
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@SuppressWarnings({ "rawtypes", "unchecked" })
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protected Object readValue(Class<?> type, DataNode json) throws IllegalAccessException, ClassNotFoundException, InstantiationException, UnsupportedDataTypeException {
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protected Object readField(Class<?> type, String key, DataNode json) throws IllegalAccessException, ClassNotFoundException, InstantiationException, UnsupportedDataTypeException {
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// Field type is a primitive?
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if(type.isPrimitive() || String.class.isAssignableFrom(type)){
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return readPrimitive(type, json);
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@ -102,41 +150,33 @@ public class JSONObjectInputStream extends InputStream implements ObjectInput, C
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else{
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Object array = Array.newInstance(type.getComponentType(), json.size());
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for(int i=0; i<json.size(); i++){
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Array.set(array, i, readValue(type.getComponentType(), json.get(i)));
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Array.set(array, i, readField(type.getComponentType(), key, json.get(i)));
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}
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return array;
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}
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}
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else if(List.class.isAssignableFrom(type)){
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// TODO Add List Support
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List list = (List)type.newInstance();
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for(int i=0; i<json.size(); i++){
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list.add(readPrimitive(json.get(i)));
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list.add(readObject(key, json.get(i)));
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}
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return list;
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}
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else if(Map.class.isAssignableFrom(type)){
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// TODO Add Map Support
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Map map = (Map)type.newInstance();
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for(int i=0; i<json.size(); i++){
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for(Iterator<String> it=json.keyIterator(); it.hasNext();){
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String subKey = it.next();
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map.put(
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readPrimitive(json.get(i)),
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readPrimitive(json.get(i)));
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subKey,
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readObject(subKey, json.get(subKey)));
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}
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return map;
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}
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// Field is a new Object
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else{
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return readObject(json);
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return readObject(key, json);
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}
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}
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/**
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* Unknown type, this method will try to guess
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*/
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protected static Object readPrimitive(DataNode json) throws UnsupportedDataTypeException{
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throw new UnsupportedDataTypeException("Complex datatype like Lists and Maps not supported");
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}
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protected static Object readPrimitive(Class<?> type, DataNode json){
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if (type == int.class ||
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@ -154,86 +194,55 @@ public class JSONObjectInputStream extends InputStream implements ObjectInput, C
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}
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public void readFully(byte[] b) throws IOException {
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// TODO Auto-generated method stub
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@Override public void readFully(byte[] b) throws IOException {
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throw new NotImplementedException();
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}
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@Override public void readFully(byte[] b, int off, int len) throws IOException {
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throw new NotImplementedException();
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}
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@Override public int skipBytes(int n) throws IOException {
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throw new NotImplementedException();
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}
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@Override public boolean readBoolean() throws IOException {
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throw new NotImplementedException();
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}
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@Override public byte readByte() throws IOException {
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throw new NotImplementedException();
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}
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@Override public int readUnsignedByte() throws IOException {
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throw new NotImplementedException();
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}
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@Override public short readShort() throws IOException {
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throw new NotImplementedException();
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}
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@Override public int readUnsignedShort() throws IOException {
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throw new NotImplementedException();
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}
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@Override public char readChar() throws IOException {
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throw new NotImplementedException();
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}
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@Override public int readInt() throws IOException {
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throw new NotImplementedException();
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}
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@Override public long readLong() throws IOException {
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throw new NotImplementedException();
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}
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@Override public float readFloat() throws IOException {
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throw new NotImplementedException();
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}
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@Override public double readDouble() throws IOException {
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throw new NotImplementedException();
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}
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@Override public String readLine() throws IOException {
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throw new NotImplementedException();
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}
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@Override public String readUTF() throws IOException {
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throw new NotImplementedException();
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}
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@Override public int read() throws IOException {
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throw new NotImplementedException();
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}
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public void readFully(byte[] b, int off, int len) throws IOException {
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// TODO Auto-generated method stub
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}
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public int skipBytes(int n) throws IOException {
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// TODO Auto-generated method stub
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return 0;
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}
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public boolean readBoolean() throws IOException {
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// TODO Auto-generated method stub
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return false;
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}
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public byte readByte() throws IOException {
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// TODO Auto-generated method stub
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return 0;
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}
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public int readUnsignedByte() throws IOException {
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// TODO Auto-generated method stub
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return 0;
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}
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public short readShort() throws IOException {
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// TODO Auto-generated method stub
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return 0;
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}
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public int readUnsignedShort() throws IOException {
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// TODO Auto-generated method stub
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return 0;
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}
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public char readChar() throws IOException {
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// TODO Auto-generated method stub
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return 0;
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}
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public int readInt() throws IOException {
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// TODO Auto-generated method stub
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return 0;
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}
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public long readLong() throws IOException {
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// TODO Auto-generated method stub
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return 0;
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}
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public float readFloat() throws IOException {
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// TODO Auto-generated method stub
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return 0;
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}
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public double readDouble() throws IOException {
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// TODO Auto-generated method stub
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return 0;
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}
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public String readLine() throws IOException {
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// TODO Auto-generated method stub
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return null;
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}
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public String readUTF() throws IOException {
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// TODO Auto-generated method stub
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return null;
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}
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@Override
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public int read() throws IOException {
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// TODO Auto-generated method stub
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return 0;
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}
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}
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