package com.intelligt.modbus.jlibmodbus.serial;
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import com.intelligt.modbus.jlibmodbus.Modbus;
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import java.util.*;
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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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public class SerialUtils {
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static private Set<ValidatorSerialPortFactory> validatorSet = new TreeSet<ValidatorSerialPortFactory>();
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static {
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registerSerialPortFactory("com.fazecast.jSerialComm.SerialPort", "com.intelligt.modbus.jlibmodbus.serial.SerialPortFactoryJSerialComm");
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registerSerialPortFactory("jssc.SerialPort", "com.intelligt.modbus.jlibmodbus.serial.SerialPortFactoryJSSC");
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registerSerialPortFactory("purejavacomm.PureJavaComm", "com.intelligt.modbus.jlibmodbus.serial.SerialPortFactoryPJC");
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registerSerialPortFactory("gnu.io.RXTXVersion", "com.intelligt.modbus.jlibmodbus.serial.SerialPortFactoryRXTX");
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registerSerialPortFactory("com.google.android.things.AndroidThings", "com.intelligt.modbus.jlibmodbus.serial.SerialPortFactoryAT");
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}
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static private SerialPortAbstractFactory factory = null;
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static public void registerSerialPortFactory(String connectorClassname, String factoryClassname) {
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if (!validatorSet.add(new ValidatorSerialPortFactory(connectorClassname, factoryClassname))) {
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Modbus.log().warning("The factory is already registered, skipping: " + factoryClassname);
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}
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}
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static public void trySelectConnector() throws SerialPortException {
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Iterator<ValidatorSerialPortFactory> iterator = validatorSet.iterator();
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while (iterator.hasNext() && getSerialPortFactory() == null) {
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ValidatorSerialPortFactory validator = iterator.next();
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if (validator.validate() ) {
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try {
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setSerialPortFactory(validator.getFactory());
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} catch (ClassNotFoundException e) {
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Modbus.log().warning("Cannot set a serial port factory " + validator.getFactoryClassname());
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}
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}
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}
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if (getSerialPortFactory() == null) {
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throw new SerialPortException("There are no available connectors");
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}
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}
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static public SerialPort createSerial(SerialParameters sp) throws SerialPortException {
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return getSerialPortFactory().createSerial(sp);
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}
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static public List<String> getPortIdentifiers() throws SerialPortException {
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return getSerialPortFactory().getPortIdentifiers();
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}
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static public String getConnectorVersion() {
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return getSerialPortFactory().getVersion();
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}
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/**
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* @param factory - a concrete serial port factory instance
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* @since 1.2.1
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*/
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static public void setSerialPortFactory(SerialPortAbstractFactory factory) {
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SerialUtils.factory = factory;
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}
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static public SerialPortAbstractFactory getSerialPortFactory() {
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if (SerialUtils.factory == null){
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SerialUtils.factory = new SerialPortFactoryJSSC();
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}
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return SerialUtils.factory;
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}
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}
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