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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.dubbo.common.serialize.fastjson;
import org.apache.dubbo.common.serialize.ObjectInput;
import com.alibaba.fastjson.JSON;
import java.io.BufferedReader;
import java.io.EOFException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.lang.reflect.Type;
/**
* FastJson object input implementation
*/
public class FastJsonObjectInput implements ObjectInput {
private final BufferedReader reader;
public FastJsonObjectInput(InputStream in) {
this(new InputStreamReader(in));
}
public FastJsonObjectInput(Reader reader) {
this.reader = new BufferedReader(reader);
}
@Override
public boolean readBool() throws IOException {
return read(boolean.class);
}
@Override
public byte readByte() throws IOException {
return read(byte.class);
}
@Override
public short readShort() throws IOException {
return read(short.class);
}
@Override
public int readInt() throws IOException {
return read(int.class);
}
@Override
public long readLong() throws IOException {
return read(long.class);
}
@Override
public float readFloat() throws IOException {
return read(float.class);
}
@Override
public double readDouble() throws IOException {
return read(double.class);
}
@Override
public String readUTF() throws IOException {
return read(String.class);
}
@Override
public byte[] readBytes() throws IOException {
return readLine().getBytes();
}
@Override
public Object readObject() throws IOException, ClassNotFoundException {
String json = readLine();
return JSON.parse(json);
}
@Override
public T readObject(Class cls) throws IOException, ClassNotFoundException {
return read(cls);
}
@Override
@SuppressWarnings("unchecked")
public T readObject(Class cls, Type type) throws IOException, ClassNotFoundException {
String json = readLine();
return (T) JSON.parseObject(json, type);
}
private String readLine() throws IOException, EOFException {
String line = reader.readLine();
if (line == null || line.trim().length() == 0) {
throw new EOFException();
}
return line;
}
private T read(Class cls) throws IOException {
String json = readLine();
return JSON.parseObject(json, cls);
}
}