| /* |
| * 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 com.alibaba.dubbo.common.serialize.java; |
| |
| import com.alibaba.dubbo.common.serialize.nativejava.NativeJavaObjectInput; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.ObjectInputStream; |
| import java.lang.reflect.Type; |
| |
| /** |
| * Java Object input. |
| */ |
| public class JavaObjectInput extends NativeJavaObjectInput { |
| public final static int MAX_BYTE_ARRAY_LENGTH = 8 * 1024 * 1024; |
| |
| public JavaObjectInput(InputStream is) throws IOException { |
| super(new ObjectInputStream(is)); |
| } |
| |
| public JavaObjectInput(InputStream is, boolean compacted) throws IOException { |
| super(compacted ? new CompactedObjectInputStream(is) : new ObjectInputStream(is)); |
| } |
| |
| @Override |
| public byte[] readBytes() throws IOException { |
| int len = getObjectInputStream().readInt(); |
| if (len < 0) |
| return null; |
| if (len == 0) |
| return new byte[0]; |
| if (len > MAX_BYTE_ARRAY_LENGTH) |
| throw new IOException("Byte array length too large. " + len); |
| |
| byte[] b = new byte[len]; |
| getObjectInputStream().readFully(b); |
| return b; |
| } |
| |
| @Override |
| public String readUTF() throws IOException { |
| int len = getObjectInputStream().readInt(); |
| if (len < 0) |
| return null; |
| |
| return getObjectInputStream().readUTF(); |
| } |
| |
| @Override |
| public Object readObject() throws IOException, ClassNotFoundException { |
| byte b = getObjectInputStream().readByte(); |
| if (b == 0) |
| return null; |
| |
| return getObjectInputStream().readObject(); |
| } |
| |
| @Override |
| @SuppressWarnings("unchecked") |
| public <T> T readObject(Class<T> cls) throws IOException, |
| ClassNotFoundException { |
| return (T) readObject(); |
| } |
| |
| @Override |
| @SuppressWarnings("unchecked") |
| public <T> T readObject(Class<T> cls, Type type) throws IOException, ClassNotFoundException { |
| return (T) readObject(); |
| } |
| |
| } |