001package com.pi4j.io.w1; 002 003/* 004 * #%L 005 * ********************************************************************** 006 * ORGANIZATION : Pi4J 007 * PROJECT : Pi4J :: Java Library (Core) 008 * FILENAME : W1BaseDevice.java 009 * 010 * This file is part of the Pi4J project. More information about 011 * this project can be found here: https://www.pi4j.com/ 012 * ********************************************************************** 013 * %% 014 * Copyright (C) 2012 - 2019 Pi4J 015 * %% 016 * This program is free software: you can redistribute it and/or modify 017 * it under the terms of the GNU Lesser General Public License as 018 * published by the Free Software Foundation, either version 3 of the 019 * License, or (at your option) any later version. 020 * 021 * This program is distributed in the hope that it will be useful, 022 * but WITHOUT ANY WARRANTY; without even the implied warranty of 023 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 024 * GNU General Lesser Public License for more details. 025 * 026 * You should have received a copy of the GNU General Lesser Public 027 * License along with this program. If not, see 028 * <http://www.gnu.org/licenses/lgpl-3.0.html>. 029 * #L% 030 */ 031 032import java.io.File; 033import java.io.IOException; 034import java.nio.file.Files; 035 036/** 037 * @author Peter Schuebl 038 */ 039public abstract class W1BaseDevice implements W1Device { 040 041 private final String id; 042 043 private String name; 044 045 private File deviceDir; 046 047 @Override 048 public String getName() { 049 return name; 050 } 051 052 @Override 053 public String getId() { 054 return id; 055 } 056 057 public W1BaseDevice(final File deviceDir) { 058 String deviceName; 059 try { 060 deviceName = new String(Files.readAllBytes(new File(deviceDir, "name").toPath())); 061 } catch (IOException e) { 062 // FIXME logging 063 deviceName = deviceDir.getName(); 064 } 065 name = deviceName; 066 id = deviceName; 067 this.deviceDir = deviceDir; 068 } 069 070 @Override 071 public boolean equals(Object obj) { 072 return obj instanceof W1Device && id.equals(((W1Device) obj).getId()); 073 } 074 075 @Override 076 public int hashCode() { 077 return id.hashCode(); 078 } 079 080 @Override 081 public String getValue() throws IOException { 082 return new String(Files.readAllBytes(new File(deviceDir, "w1_slave").toPath())); 083 } 084}