com.guardtime.ksi.service.tcp.TransactionEncoder Maven / Gradle / Ivy

/*
 * Copyright 2013-2018 Guardtime, Inc.
 *
 *  This file is part of the Guardtime client SDK.
 *
 *  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, CONDITIONS, OR OTHER LICENSES OF ANY KIND, either
 *  express or implied. See the License for the specific language governing
 *  permissions and limitations under the License.
 *  "Guardtime" and "KSI" are trademarks or registered trademarks of
 *  Guardtime, Inc., and no license to trademarks is granted; Guardtime
 *  reserves and retains all trademark rights.
 *
 */
package com.guardtime.ksi.service.tcp;

import org.apache.mina.core.buffer.IoBuffer;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.ProtocolEncoderAdapter;
import org.apache.mina.filter.codec.ProtocolEncoderOutput;

import java.io.ByteArrayOutputStream;

/**
 * Encodes the Transaction to TCP raw request.
 */
class TransactionEncoder extends ProtocolEncoderAdapter {

    public void encode(IoSession session, Object message, ProtocolEncoderOutput out) throws Exception {
        KSITCPTransaction transaction = (KSITCPTransaction) message;
        ByteArrayOutputStream requestBytesStream = new ByteArrayOutputStream();
        transaction.getRequest().writeTo(requestBytesStream);
        byte[] requestBytes = requestBytesStream.toByteArray();
        IoBuffer buffer = IoBuffer.allocate(requestBytes.length).setAutoExpand(true);
        buffer.put(requestBytes);
        buffer.flip();
        out.write(buffer);
    }
}