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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.thrift.transport.sasl;
import static org.apache.thrift.transport.sasl.DataFrameHeaderReader.PAYLOAD_LENGTH_BYTES;
import java.nio.ByteBuffer;
import org.apache.thrift.EncodingUtils;
import org.apache.thrift.utils.StringUtils;
/**
* Write frames of thrift messages. It expects an empty/null header to be provided with a payload to
* be written out. Non empty headers are considered as error.
*/
public class DataFrameWriter extends FrameWriter {
@Override
public void withOnlyPayload(byte[] payload, int offset, int length) {
if (!isComplete()) {
throw new IllegalStateException(
"Previous write is not yet complete, with " + frameBytes.remaining() + " bytes left.");
}
frameBytes = buildFrameWithPayload(payload, offset, length);
}
@Override
protected ByteBuffer buildFrame(
byte[] header,
int headerOffset,
int headerLength,
byte[] payload,
int payloadOffset,
int payloadLength) {
if (header != null && headerLength > 0) {
throw new IllegalArgumentException(
"Extra header ["
+ StringUtils.bytesToHexString(header)
+ "] offset "
+ payloadOffset
+ " length "
+ payloadLength);
}
return buildFrameWithPayload(payload, payloadOffset, payloadLength);
}
private ByteBuffer buildFrameWithPayload(byte[] payload, int offset, int length) {
byte[] bytes = new byte[PAYLOAD_LENGTH_BYTES + length];
EncodingUtils.encodeBigEndian(length, bytes, 0);
System.arraycopy(payload, offset, bytes, PAYLOAD_LENGTH_BYTES, length);
return ByteBuffer.wrap(bytes);
}
}
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