AKM868GenericBindingProvider.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.akm868.internal;

import java.util.HashMap;
import java.util.Map;

import org.openhab.binding.akm868.AKM868BindingProvider;
import org.openhab.core.binding.BindingConfig;
import org.openhab.core.items.Item;
import org.openhab.core.library.items.SwitchItem;
import org.openhab.model.item.binding.AbstractGenericBindingProvider;
import org.openhab.model.item.binding.BindingConfigParseException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * This class is responsible for parsing the binding configuration.
 *
 * @author Michael Heckmann
 * @since 1.8.0
 */

public class AKM868GenericBindingProvider extends AbstractGenericBindingProvider implements AKM868BindingProvider {

    static final Logger logger = LoggerFactory.getLogger(AKM868GenericBindingProvider.class);
    private Map<String, Item> items = new HashMap<String, Item>();

    /**
     * {@inheritDoc}
     */
    @Override
    public String getBindingType() {
        return "akm868";
    }

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

    /**
     * {@inheritDoc}
     */
    @Override
    public Item getItem(String itemName) {
        return items.get(itemName);
    }

    @Override
    public String getId(String itemName) {
        AKM868BindingConfig config = (AKM868BindingConfig) bindingConfigs.get(itemName);
        return config != null ? config.id : null;
    }

    @Override
    public String getChannel(String itemName) {
        AKM868BindingConfig config = (AKM868BindingConfig) bindingConfigs.get(itemName);
        return config != null ? config.channel : null;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void processBindingConfiguration(String context, Item item, String bindingConfig)
            throws BindingConfigParseException {
        super.processBindingConfiguration(context, item, bindingConfig);

        String id = "";
        String channel = "";

        // Parse bindingconfig and separate values
        String separator = ",";
        String bindingConfigElements[] = bindingConfig.split(separator);
        for (String configElement : bindingConfigElements) {
            String assingment = "=";
            String assignments[] = configElement.split(assingment);
            if (assignments[0].equalsIgnoreCase("id")) {
                id = assignments[1];
            } else if (assignments[0].equalsIgnoreCase("channel")) {
                channel = assignments[1];
            }
        }
        AKM868BindingConfig config = new AKM868BindingConfig(id, channel);
        // parse bindingconfig here ...
        items.put(item.getName(), item);
        addBindingConfig(item, config);
    }

    class AKM868BindingConfig implements BindingConfig {
        // put member fields here which holds the parsed values
        public String id;
        public String channel;

        public AKM868BindingConfig(String id, String channel) {
            this.id = id;
            this.channel = channel;
        }
    }

}