org.apache.mina.filter.codec.serialization.ObjectSerializationOutputStream Maven / Gradle / Ivy
/*
* 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.mina.filter.codec.serialization;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.ObjectOutput;
import java.io.OutputStream;
import org.apache.mina.core.buffer.IoBuffer;
/**
* An {@link ObjectOutput} and {@link OutputStream} that can write the objects as
* the serialized form that {@link ObjectSerializationDecoder} can decode.
*
* @author Apache MINA Project
*/
public class ObjectSerializationOutputStream extends OutputStream implements ObjectOutput {
private final DataOutputStream out;
private int maxObjectSize = Integer.MAX_VALUE;
/**
* Create a new instance of an ObjectSerializationOutputStream
* @param out The {@link OutputStream} to use
*/
public ObjectSerializationOutputStream(OutputStream out) {
if (out == null) {
throw new IllegalArgumentException("out");
}
if (out instanceof DataOutputStream) {
this.out = (DataOutputStream) out;
} else {
this.out = new DataOutputStream(out);
}
}
/**
* @return the allowed maximum size of the encoded object.
* If the size of the encoded object exceeds this value, this encoder
* will throw a {@link IllegalArgumentException}. The default value
* is {@link Integer#MAX_VALUE}.
*/
public int getMaxObjectSize() {
return maxObjectSize;
}
/**
* Sets the allowed maximum size of the encoded object.
* If the size of the encoded object exceeds this value, this encoder
* will throw a {@link IllegalArgumentException}. The default value
* is {@link Integer#MAX_VALUE}.
*
* @param maxObjectSize The maximum object size
*/
public void setMaxObjectSize(int maxObjectSize) {
if (maxObjectSize <= 0) {
throw new IllegalArgumentException("maxObjectSize: " + maxObjectSize);
}
this.maxObjectSize = maxObjectSize;
}
/**
* {@inheritDoc}
*/
@Override
public void close() throws IOException {
out.close();
}
/**
* {@inheritDoc}
*/
@Override
public void flush() throws IOException {
out.flush();
}
/**
* {@inheritDoc}
*/
@Override
public void write(int b) throws IOException {
out.write(b);
}
/**
* {@inheritDoc}
*/
@Override
public void write(byte[] b) throws IOException {
out.write(b);
}
/**
* {@inheritDoc}
*/
@Override
public void write(byte[] b, int off, int len) throws IOException {
out.write(b, off, len);
}
/**
* {@inheritDoc}
*/
@Override
public void writeObject(Object obj) throws IOException {
IoBuffer buf = IoBuffer.allocate(64, false);
buf.setAutoExpand(true);
buf.putObject(obj);
int objectSize = buf.position() - 4;
if (objectSize > maxObjectSize) {
throw new IllegalArgumentException("The encoded object is too big: " + objectSize + " (> " + maxObjectSize
+ ')');
}
out.write(buf.array(), 0, buf.position());
}
/**
* {@inheritDoc}
*/
@Override
public void writeBoolean(boolean v) throws IOException {
out.writeBoolean(v);
}
/**
* {@inheritDoc}
*/
@Override
public void writeByte(int v) throws IOException {
out.writeByte(v);
}
/**
* {@inheritDoc}
*/
@Override
public void writeBytes(String s) throws IOException {
out.writeBytes(s);
}
/**
* {@inheritDoc}
*/
@Override
public void writeChar(int v) throws IOException {
out.writeChar(v);
}
/**
* {@inheritDoc}
*/
@Override
public void writeChars(String s) throws IOException {
out.writeChars(s);
}
/**
* {@inheritDoc}
*/
@Override
public void writeDouble(double v) throws IOException {
out.writeDouble(v);
}
/**
* {@inheritDoc}
*/
@Override
public void writeFloat(float v) throws IOException {
out.writeFloat(v);
}
/**
* {@inheritDoc}
*/
@Override
public void writeInt(int v) throws IOException {
out.writeInt(v);
}
/**
* {@inheritDoc}
*/
@Override
public void writeLong(long v) throws IOException {
out.writeLong(v);
}
/**
* {@inheritDoc}
*/
@Override
public void writeShort(int v) throws IOException {
out.writeShort(v);
}
/**
* {@inheritDoc}
*/
@Override
public void writeUTF(String str) throws IOException {
out.writeUTF(str);
}
}