com.epam.deltix.qsrv.hf.tickdb.impl.SimpleMessageDecoder Maven / Gradle / Ivy
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/*
* Copyright 2023 EPAM Systems, Inc
*
* See the NOTICE file distributed with this work for additional information
* regarding copyright ownership. Licensed 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 com.epam.deltix.qsrv.hf.tickdb.impl;
import com.epam.deltix.timebase.messages.InstrumentMessage;
import com.epam.deltix.qsrv.hf.pub.TypeLoader;
import com.epam.deltix.qsrv.hf.pub.codec.BoundExternalDecoder;
import com.epam.deltix.qsrv.hf.pub.codec.CodecFactory;
import com.epam.deltix.qsrv.hf.pub.md.RecordClassDescriptor;
import com.epam.deltix.util.memory.MemoryDataInput;
public class SimpleMessageDecoder {
private final BoundExternalDecoder decoder;
private final InstrumentMessage message;
private final RecordClassDescriptor type;
private final MemoryDataInput input;
public SimpleMessageDecoder (
TypeLoader loader,
CodecFactory factory,
RecordClassDescriptor fixedType
)
{
type = fixedType;
message = (InstrumentMessage) fixedType.newInstanceNoX(loader);
decoder = factory.createFixedExternalDecoder(loader, fixedType);
decoder.setStaticFields (message);
input = new MemoryDataInput();
}
public InstrumentMessage decode(MemoryDataInput in, int length) {
input.setBytes(in.getBytes(), in.getCurrentOffset(), length);
decoder.decode(input, message);
return message;
}
public InstrumentMessage getMessage() {
return message;
}
public RecordClassDescriptor getType() {
return type;
}
}