UCPRelayConfig.java

/**
 * Copyright (c) 2010-2016 by the respective copyright holders.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 */
/**
 * Configuration of a Switch
 *
 * @author Robert Michalak
 */
package org.openhab.binding.ucprelayboard.internal;

import org.apache.commons.lang.StringUtils;
import org.openhab.core.binding.BindingConfig;
import org.openhab.core.library.types.OnOffType;
import org.openhab.model.item.binding.BindingConfigParseException;

/**
 * @author Robert Michalak
 * @since 1.8.0
 */
public class UCPRelayConfig implements BindingConfig {
    private String boardName;
    private int relayNumber;
    private boolean inverted = false;

    public UCPRelayConfig(String boardName, int relayNumber) {
        this(boardName, relayNumber, false);
    }

    public UCPRelayConfig(String boardName, int relayNumber, boolean inverted) {
        this.boardName = boardName;
        this.relayNumber = relayNumber;
        this.inverted = inverted;
    }

    public String getBoardName() {
        return boardName;
    }

    public int getRelayNumber() {
        return relayNumber;
    }

    public OnOffType translateCommand(OnOffType command) {
        if (inverted) {
            return OnOffType.values()[1 - command.ordinal()];
        } else {
            return command;
        }
    }

    public static UCPRelayConfig fromString(final String config) throws BindingConfigParseException {
        String boardName = null;
        int relayNumber = -1;
        boolean inverted = false;
        final String[] params = StringUtils.split(config, ";");
        for (String param : params) {
            final String[] nameValue = StringUtils.split(param, "=");
            if (nameValue.length != 2) {
                continue;
            }
            if ("board".equals(nameValue[0])) {
                boardName = nameValue[1];
            } else if ("relay".equals(nameValue[0])) {
                try {
                    relayNumber = Integer.parseInt(nameValue[1]);
                } catch (NumberFormatException e) {
                    throw new BindingConfigParseException("Wrong item configuration. " + e.getMessage());
                }
            } else if ("inverted".equals(nameValue[0])) {
                inverted = Boolean.valueOf(nameValue[1]);
            }
        }
        if (boardName == null && relayNumber < 0) {
            throw new BindingConfigParseException("Wrong item configuration. missing 'board' or 'relay' values");
        }
        return new UCPRelayConfig(boardName, relayNumber, inverted);
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((boardName == null) ? 0 : boardName.hashCode());
        result = prime * result + relayNumber;
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        UCPRelayConfig other = (UCPRelayConfig) obj;
        if (boardName == null) {
            if (other.boardName != null) {
                return false;
            }
        } else if (!boardName.equals(other.boardName)) {
            return false;
        }
        if (relayNumber != other.relayNumber) {
            return false;
        }
        return true;
    }

}