/*
* 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.ignite.internal.processors.hadoop.shuffle.streams;
import java.io.DataOutput;
import java.io.OutputStream;
import java.nio.charset.StandardCharsets;
import org.apache.ignite.internal.util.GridUnsafe;
import org.apache.ignite.internal.util.offheap.unsafe.GridUnsafeMemory;
/**
* Data output stream.
*/
public class HadoopDataOutStream extends OutputStream implements DataOutput {
/** */
private final HadoopOffheapBuffer buf = new HadoopOffheapBuffer(0, 0);
/** */
private final GridUnsafeMemory mem;
/**
* @param mem Memory.
*/
public HadoopDataOutStream(GridUnsafeMemory mem) {
this.mem = mem;
}
/**
* @return Buffer.
*/
public HadoopOffheapBuffer buffer() {
return buf;
}
/**
* @param size Size.
* @return Old pointer or {@code 0} if move was impossible.
*/
public long move(long size) {
return buf.move(size);
}
/** {@inheritDoc} */
@Override public void write(int b) {
writeByte(b);
}
/** {@inheritDoc} */
@Override public void write(byte[] b) {
write(b, 0, b.length);
}
/** {@inheritDoc} */
@Override public void write(byte[] b, int off, int len) {
GridUnsafe.copyHeapOffheap(b, GridUnsafe.BYTE_ARR_OFF + off, move(len), len);
}
/** {@inheritDoc} */
@Override public void writeBoolean(boolean v) {
writeByte(v ? 1 : 0);
}
/** {@inheritDoc} */
@Override public void writeByte(int v) {
mem.writeByte(move(1), (byte)v);
}
/** {@inheritDoc} */
@Override public void writeShort(int v) {
mem.writeShort(move(2), (short)v);
}
/** {@inheritDoc} */
@Override public void writeChar(int v) {
writeShort(v);
}
/** {@inheritDoc} */
@Override public void writeInt(int v) {
mem.writeInt(move(4), v);
}
/** {@inheritDoc} */
@Override public void writeLong(long v) {
mem.writeLong(move(8), v);
}
/** {@inheritDoc} */
@Override public void writeFloat(float v) {
mem.writeFloat(move(4), v);
}
/** {@inheritDoc} */
@Override public void writeDouble(double v) {
mem.writeDouble(move(8), v);
}
/** {@inheritDoc} */
@Override public void writeBytes(String s) {
writeUTF(s);
}
/** {@inheritDoc} */
@Override public void writeChars(String s) {
writeUTF(s);
}
/** {@inheritDoc} */
@Override public void writeUTF(String s) {
byte[] b = s.getBytes(StandardCharsets.UTF_8);
writeInt(b.length);
write(b);
}
}