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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.nativejava;
import org.apache.dubbo.common.serialize.ObjectInput;
import org.apache.dubbo.common.utils.Assert;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.lang.reflect.Type;
/**
* Native java object input implementation
*/
public class NativeJavaObjectInput implements ObjectInput {
private final ObjectInputStream inputStream;
public NativeJavaObjectInput(InputStream is) throws IOException {
this(new ObjectInputStream(is));
}
protected NativeJavaObjectInput(ObjectInputStream is) {
Assert.notNull(is, "input == null");
inputStream = is;
}
protected ObjectInputStream getObjectInputStream() {
return inputStream;
}
@Override
public Object readObject() throws IOException, ClassNotFoundException {
return inputStream.readObject();
}
@Override
@SuppressWarnings("unchecked")
public T readObject(Class cls) throws IOException, ClassNotFoundException {
return (T) readObject();
}
@Override
@SuppressWarnings("unchecked")
public T readObject(Class cls, Type type) throws IOException, ClassNotFoundException {
return (T) readObject();
}
@Override
public boolean readBool() throws IOException {
return inputStream.readBoolean();
}
@Override
public byte readByte() throws IOException {
return inputStream.readByte();
}
@Override
public short readShort() throws IOException {
return inputStream.readShort();
}
@Override
public int readInt() throws IOException {
return inputStream.readInt();
}
@Override
public long readLong() throws IOException {
return inputStream.readLong();
}
@Override
public float readFloat() throws IOException {
return inputStream.readFloat();
}
@Override
public double readDouble() throws IOException {
return inputStream.readDouble();
}
@Override
public String readUTF() throws IOException {
return inputStream.readUTF();
}
@Override
public byte[] readBytes() throws IOException {
int len = inputStream.readInt();
if (len < 0) {
return null;
} else if (len == 0) {
return new byte[]{};
} else {
byte[] result = new byte[len];
inputStream.readFully(result);
return result;
}
}
}