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Remove Unused ByteBufStreamInput (#56567) (#56601) 

We're not using this one any more.
This commit is contained in:
Armin Braun 2020-05-12 16:04:58 +02:00 committed by GitHub
parent f0074e93a0
commit b449661b8f
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1 changed files with 0 additions and 189 deletions
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modules/transport-netty4/src/main/java/org/elasticsearch/transport/netty4/ByteBufStreamInput.java
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@ -1,189 +0,0 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.transport.netty4;
import io.netty.buffer.ByteBuf;
import org.apache.lucene.util.BytesRef;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.io.stream.StreamInput;
import java.io.EOFException;
import java.io.IOException;
/**
* A Netty {@link ByteBuf} based {@link StreamInput}.
*/
class ByteBufStreamInput extends StreamInput {
private final ByteBuf buffer;
private final int endIndex;
ByteBufStreamInput(ByteBuf buffer, int length) {
if (length > buffer.readableBytes()) {
throw new IndexOutOfBoundsException();
}
this.buffer = buffer;
int startIndex = buffer.readerIndex();
endIndex = startIndex + length;
buffer.markReaderIndex();
}
@Override
public BytesReference readBytesReference(int length) throws IOException {
// NOTE: It is unsafe to share a reference of the internal structure, so we
// use the default implementation which will copy the bytes. It is unsafe because
// a netty ByteBuf might be pooled which requires a manual release to prevent
// memory leaks.
return super.readBytesReference(length);
}
@Override
public BytesRef readBytesRef(int length) throws IOException {
// NOTE: It is unsafe to share a reference of the internal structure, so we
// use the default implementation which will copy the bytes. It is unsafe because
// a netty ByteBuf might be pooled which requires a manual release to prevent
// memory leaks.
return super.readBytesRef(length);
}
@Override
public int available() throws IOException {
return endIndex - buffer.readerIndex();
}
@Override
protected void ensureCanReadBytes(int length) throws EOFException {
int bytesAvailable = endIndex - buffer.readerIndex();
if (bytesAvailable < length) {
throw new EOFException("tried to read: " + length + " bytes but only " + bytesAvailable + " remaining");
}
}
@Override
public void mark(int readlimit) {
buffer.markReaderIndex();
}
@Override
public boolean markSupported() {
return true;
}
@Override
public int read() throws IOException {
if (available() == 0) {
return -1;
}
return buffer.readByte() & 0xff;
}
@Override
public int read(byte[] b, int off, int len) throws IOException {
if (len == 0) {
return 0;
}
int available = available();
if (available == 0) {
return -1;
}
len = Math.min(available, len);
buffer.readBytes(b, off, len);
return len;
}
@Override
public short readShort() throws IOException {
try {
return buffer.readShort();
} catch (IndexOutOfBoundsException ex) {
EOFException eofException = new EOFException();
eofException.initCause(ex);
throw eofException;
}
}
@Override
public int readInt() throws IOException {
try {
return buffer.readInt();
} catch (IndexOutOfBoundsException ex) {
EOFException eofException = new EOFException();
eofException.initCause(ex);
throw eofException;
}
}
@Override
public long readLong() throws IOException {
try {
return buffer.readLong();
} catch (IndexOutOfBoundsException ex) {
EOFException eofException = new EOFException();
eofException.initCause(ex);
throw eofException;
}
}
@Override
public void reset() throws IOException {
buffer.resetReaderIndex();
}
@Override
public long skip(long n) throws IOException {
if (n > Integer.MAX_VALUE) {
return skipBytes(Integer.MAX_VALUE);
} else {
return skipBytes((int) n);
}
}
public int skipBytes(int n) throws IOException {
int nBytes = Math.min(available(), n);
buffer.skipBytes(nBytes);
return nBytes;
}
@Override
public byte readByte() throws IOException {
try {
return buffer.readByte();
} catch (IndexOutOfBoundsException ex) {
EOFException eofException = new EOFException();
eofException.initCause(ex);
throw eofException;
}
}
@Override
public void readBytes(byte[] b, int offset, int len) throws IOException {
int read = read(b, offset, len);
if (read < len) {
throw new IndexOutOfBoundsException();
}
}
@Override
public void close() throws IOException {
// nothing to do here
}
}