package com.intelligt.modbus.jlibmodbus.net;
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import com.intelligt.modbus.jlibmodbus.Modbus;
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import com.intelligt.modbus.jlibmodbus.exception.ModbusIOException;
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import com.intelligt.modbus.jlibmodbus.net.stream.base.LoggingInputStream;
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import com.intelligt.modbus.jlibmodbus.net.stream.base.LoggingOutputStream;
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import com.intelligt.modbus.jlibmodbus.net.transport.ModbusTransport;
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import com.intelligt.modbus.jlibmodbus.utils.FrameEventListenerListImpl;
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import java.util.concurrent.atomic.AtomicBoolean;
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/*
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* Copyright (C) 2016 "Invertor" Factory", JSC
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* [http://www.sbp-invertor.ru]
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*
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* This file is part of JLibModbus.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Authors: Vladislav Y. Kochedykov, software engineer.
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* email: vladislav.kochedykov@gmail.com
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*/
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abstract public class ModbusConnection extends FrameEventListenerListImpl {
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private int readTimeout = Modbus.MAX_RESPONSE_TIMEOUT;
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final private AtomicBoolean opened = new AtomicBoolean(false);
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abstract public LoggingOutputStream getOutputStream();
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abstract public LoggingInputStream getInputStream();
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abstract public ModbusTransport getTransport();
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final public void open() throws ModbusIOException {
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openImpl();
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setOpened(true);
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getOutputStream().setListenerList(this);
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getInputStream().setListenerList(this);
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}
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final public void close() throws ModbusIOException {
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try {
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closeImpl();
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} finally {
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setOpened(false);
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}
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}
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abstract protected void openImpl() throws ModbusIOException;
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abstract protected void closeImpl() throws ModbusIOException;
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public int getReadTimeout() {
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return readTimeout;
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}
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public void setReadTimeout(int timeout) {
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readTimeout = timeout;
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if (getTransport() != null) {
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LoggingInputStream is = getInputStream();
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if (is != null) {
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is.setReadTimeout(timeout);
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}
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}
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}
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@Override
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protected void finalize()
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throws Throwable {
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super.finalize();
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close();
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}
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public boolean isOpened() {
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return opened.get();
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}
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private void setOpened(boolean opened) {
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this.opened.set(opened);
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}
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}
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