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Some progress on the JSONObjectInputStream

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Ziver Koc 2013-06-09 19:47:08 +00:00
parent 1a7f0fd1d9
commit cdf1f13fb0
5 changed files with 137 additions and 38 deletions
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112
src/zutil/parser/json/JSONObjectInputStream.java
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@ -22,17 +22,112 @@
package zutil.parser.json;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInput;
import zutil.parser.Base64Decoder;
import zutil.parser.DataNode;
import java.io.*;
import java.lang.reflect.Array;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.List;
import java.util.Map;
public class JSONObjectInputStream extends InputStream implements ObjectInput, Closeable{
private JSONParser parser;
public JSONObjectInputStream(InputStream bout) {
// TODO Auto-generated constructor stub
public JSONObjectInputStream(Reader in) {
this.parser = new JSONParser(in);
}
public Object readObject() throws ClassNotFoundException, IOException {
try{
DataNode root = parser.read();
if(root != null){
readObject(root);
}
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
return null;
}
protected static Object readObject(DataNode json) throws IllegalAccessException, InstantiationException, ClassNotFoundException {
Class objClass = Class.forName(json.getString("@class"));
Object obj = objClass.newInstance();
// Read all fields from the new object instance
for(Field field : obj.getClass().getDeclaredFields()){
if((field.getModifiers() & Modifier.STATIC) == 0 &&
(field.getModifiers() & Modifier.TRANSIENT) == 0 &&
json.get(field.getName()) != null){
// Parse field
field.setAccessible(true);
field.set(obj, readValue(
field.getDeclaringClass(),
json.get(field.getName())));
}
}
return obj;
}
protected static Object readValue(Class type, DataNode json) throws IllegalAccessException, ClassNotFoundException, InstantiationException {
// Field type is a primitive?
if(type.isPrimitive()){
return readPrimitive(type, json);
}
else if(type.isArray()){
if(type.getComponentType() == Byte.class)
return Base64Decoder.decodeToByte(json.getString());
else{
Object array = Array.newInstance(type.getComponentType(), json.size());
for(int i=0; i<json.size(); i++){
Array.set(array, i, readValue(type.getComponentType(), json.get(i)));
}
return array;
}
}
else if(List.class.isAssignableFrom(type)){
// TODO Add List Support
List list = (List)type.newInstance();
for(int i=0; i<json.size(); i++){
list.add(readValue(null, json.get(i)));
}
return list;
}
else if(Map.class.isAssignableFrom(type)){
// TODO Add Map Support
Map map = (Map)type.newInstance();
for(int i=0; i<json.size(); i++){
map.put(
readValue(null, json.get(i)),
readValue(null, json.get(i)));
}
return map;
}
// Field is a new Object
else{
return readObject(json);
}
}
protected static Object readPrimitive(Class<?> type, DataNode json){
//if (type == Short.class) return json.getShort();
if (type == Integer.class) return json.getInt();
else if(type == Long.class) return json.getLong();
//else if(type == Float.class) field.setFloat(obj, json.getFloat());
else if(type == Double.class) return json.getDouble();
else if(type == Boolean.class) return json.getBoolean();
//else if(type == Character.class) return json.getChar();
else if(type == String.class) return json.getString();
//else if(type == Byte.class) return Base64Decoder.decodeToByte(json.getString());
return null;
}
public void readFully(byte[] b) throws IOException {
// TODO Auto-generated method stub
@ -108,11 +203,6 @@ public class JSONObjectInputStream extends InputStream implements ObjectInput, C
return null;
}
public Object readObject() throws ClassNotFoundException, IOException {
// TODO Auto-generated method stub
return null;
}
@Override
public int read() throws IOException {
// TODO Auto-generated method stub