| /* |
| * 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.gson; |
| |
| import com.google.gson.Gson; |
| import org.apache.dubbo.common.serialize.ObjectInput; |
| import org.apache.dubbo.common.utils.PojoUtils; |
| |
| 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; |
| |
| public class GsonJsonObjectInput implements ObjectInput { |
| private final BufferedReader reader; |
| private Gson gson; |
| |
| public GsonJsonObjectInput(InputStream in) { |
| this(new InputStreamReader(in)); |
| } |
| |
| public GsonJsonObjectInput(Reader reader) { |
| this.reader = new BufferedReader(reader); |
| gson = new Gson(); |
| } |
| |
| @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 gson.fromJson(json, String.class); |
| } |
| |
| @Override |
| public <T> T readObject(Class<T> cls) throws IOException, ClassNotFoundException { |
| return read(cls); |
| } |
| |
| @Override |
| @SuppressWarnings("unchecked") |
| public <T> T readObject(Class<T> cls, Type type) throws IOException, ClassNotFoundException { |
| Object value = readObject(cls); |
| return (T) PojoUtils.realize(value, cls, type); |
| } |
| |
| private String readLine() throws IOException { |
| String line = reader.readLine(); |
| if (line == null || line.trim().length() == 0) throw new EOFException(); |
| return line; |
| } |
| |
| private <T> T read(Class<T> cls) throws IOException { |
| String json = readLine(); |
| return gson.fromJson(json, cls); |
| } |
| } |