S300THGenericBindingProvider.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
 */
package org.openhab.binding.s300th.internal;

import org.openhab.binding.s300th.S300THBindingProvider;
import org.openhab.binding.s300th.internal.S300THGenericBindingProvider.S300THBindingConfig.Datapoint;
import org.openhab.core.binding.BindingConfig;
import org.openhab.core.items.Item;
import org.openhab.core.library.items.NumberItem;
import org.openhab.model.item.binding.AbstractGenericBindingProvider;
import org.openhab.model.item.binding.BindingConfigParseException;

/**
 * This class is responsible for parsing the binding configuration.
 *
 * @author Till Klocke
 * @since 1.4.0
 */
public class S300THGenericBindingProvider extends AbstractGenericBindingProvider implements S300THBindingProvider {

    /**
     * {@inheritDoc}
     */
    @Override
    public String getBindingType() {
        return "s300th";
    }

    /**
     * @{inheritDoc
     */
    @Override
    public void validateItemType(Item item, String bindingConfig) throws BindingConfigParseException {
        if (!(item instanceof NumberItem)) {
            throw new BindingConfigParseException(
                    "item '" + item.getName() + "' is of type '" + item.getClass().getSimpleName()
                            + "', only NumberItems are allowed - please check your *.items configuration");
        }
    }

    /**
     * item config in the style {s300th="address=A; datapoint=DATAPOINT"}
     * {@inheritDoc}
     */
    @Override
    public void processBindingConfiguration(String context, Item item, String bindingConfig)
            throws BindingConfigParseException {
        super.processBindingConfiguration(context, item, bindingConfig);
        S300THBindingConfig config = new S300THBindingConfig();
        String[] parts = bindingConfig.split(";");
        for (String part : parts) {
            String[] keyValue = part.split("=");
            // to avoid beginner error
            keyValue[0] = keyValue[0].trim();
            keyValue[1] = keyValue[1].trim();
            if (keyValue[0].equals("address")) {
                config.address = keyValue[1];
            }
            if (keyValue[0].equals("datapoint")) {
                config.datapoint = Datapoint.valueOf(keyValue[1]);
            }
        }
        config.item = item;

        addBindingConfig(item, config);
    }

    public static class S300THBindingConfig implements BindingConfig {
        public enum Datapoint {
            TEMPERATURE,
            HUMIDITY,
            RAIN,
            WIND,
            IS_RAINING;
        }

        public String address;
        public Item item;
        public Datapoint datapoint;
    }

    @Override
    public S300THBindingConfig getBindingConfigForAddressAndDatapoint(String address, Datapoint datapoint) {
        for (BindingConfig config : this.bindingConfigs.values()) {
            S300THBindingConfig s300thConfig = (S300THBindingConfig) config;
            if (s300thConfig.address.equals(address) && s300thConfig.datapoint == datapoint) {
                return (S300THBindingConfig) config;
            }
        }
        return null;
    }

}