Java tutorial
/* * AndFHEM - Open Source Android application to control a FHEM home automation * server. * * Copyright (c) 2011, Matthias Klass or third-party contributors as * indicated by the @author tags or express copyright attribution * statements applied by the authors. All third-party contributions are * distributed under license by Red Hat Inc. * * This copyrighted material is made available to anyone wishing to use, modify, * copy, or redistribute it subject to the terms and conditions of the GNU GENERAL PUBLIC LICENSE, as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU GENERAL PUBLIC LICENSE * for more details. * * You should have received a copy of the GNU GENERAL PUBLIC LICENSE * along with this distribution; if not, write to: * Free Software Foundation, Inc. * 51 Franklin Street, Fifth Floor * Boston, MA 02110-1301 USA */ package li.klass.fhem.domain; import android.util.Log; import com.google.common.base.Optional; import java.util.Locale; import li.klass.fhem.util.NumberUtil; import li.klass.fhem.util.ValueExtractUtil; public enum MAXMode { ECO, COMFORT, BOOST, AUTO, TEMPORARY, MANUAL; public static Optional<MAXMode> modeFor(String value) { if (NumberUtil.isDecimalNumber(value)) { int mode = ValueExtractUtil.extractLeadingInt(value); switch (mode) { case 0: return Optional.of(MAXMode.AUTO); case 1: return Optional.of(MAXMode.MANUAL); case 2: return Optional.of(MAXMode.TEMPORARY); case 3: return Optional.of(MAXMode.BOOST); default: throw new IllegalArgumentException("don't know how to handle heating mode " + mode); } } else { try { return Optional.of(MAXMode.valueOf(value.toUpperCase(Locale.getDefault()))); } catch (Exception e) { Log.e(MAXMode.class.getName(), "cannot set heating mode from value " + value, e); return Optional.absent(); } } } }