HomematicGenericBindingProvider.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.homematic.internal.bus;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.openhab.binding.homematic.HomematicBindingProvider;
import org.openhab.binding.homematic.internal.config.binding.HomematicBindingConfig;
import org.openhab.core.items.Item;
import org.openhab.model.item.binding.AbstractGenericBindingProvider;
import org.openhab.model.item.binding.BindingConfigParseException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * This class can parse information from the generic binding format and provides
 * Homematic binding information.
 *
 * @author Gerhard Riegler
 * @since 1.5.0
 */
public class HomematicGenericBindingProvider extends AbstractGenericBindingProvider
        implements HomematicBindingProvider {
    private static final Logger logger = LoggerFactory.getLogger(HomematicGenericBindingProvider.class);

    private BindingConfigParser parser = new BindingConfigParser();

    private Map<String, Item> items = new HashMap<String, Item>();

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

    /**
     * {@inheritDoc}
     */
    @Override
    public void validateItemType(Item item, String bindingConfig) throws BindingConfigParseException {
        // validation is done in processBindingConfiguration
    }

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

        HomematicBindingConfig config = parser.parse(item, bindingConfig);
        logger.debug("Adding item {} with {}", item.getName(), config.toString());
        items.put(item.getName(), item);
        addBindingConfig(item, config);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public List<Item> getItemsFor(HomematicBindingConfig bindingConfig) {
        List<Item> result = new ArrayList<Item>();
        for (String itemName : getItemNames()) {
            HomematicBindingConfig bc = (HomematicBindingConfig) bindingConfigs.get(itemName);
            if (bc.equals(bindingConfig)) {
                result.add(items.get(itemName));
            }
        }
        return result;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public HomematicBindingConfig getBindingFor(String itemName) {
        return (HomematicBindingConfig) bindingConfigs.get(itemName);
    }

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

}