AlarmDecoderBindingConfig.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.alarmdecoder.internal;

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

import org.openhab.core.binding.BindingConfig;
import org.openhab.core.items.Item;
import org.openhab.core.types.State;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Holds binding configuration
 *
 * @author Bernd Pfrommer
 * @since 1.6.0
 */
public class AlarmDecoderBindingConfig implements BindingConfig {
    private static final Logger logger = LoggerFactory.getLogger(AlarmDecoderBindingConfig.class);

    /**
     * Class that holds binding configuration information
     * 
     * @param type
     * @param address
     * @param feature
     * @param params
     */
    public AlarmDecoderBindingConfig(Item item, ADMsgType type, String address, String feature,
            HashMap<String, String> params) {
        m_item = item;
        m_type = type;
        m_address = address;
        m_feature = feature;
        m_params = params;
        m_itemState = item.getState();
    }

    public AlarmDecoderBindingConfig(Item item, HashMap<String, String> params) {
        m_item = item;
        m_itemState = item.getState();
        m_type = ADMsgType.INVALID;
        m_params = params;
    }

    private final Item m_item;
    private ADMsgType m_type = ADMsgType.INVALID;
    private String m_feature = null;
    private String m_address = null;
    private HashMap<String, String> m_params = new HashMap<String, String>();
    // Caching the item state in the binding config, ugh :(
    // But somehow the item.getState() always returns Unintialized
    // so it cannot be used to eliminate duplicate status updates
    private State m_itemState;

    public HashMap<String, String> getParameters() {
        return m_params;
    }

    public Item getItem() {
        return m_item;
    }

    public String getItemName() {
        return m_item.getName();
    }

    public String getFeature() {
        return m_feature;
    }

    public String getAddress() {
        return m_address;
    }

    public ADMsgType getMsgType() {
        return m_type;
    }

    public State getState() {
        return m_itemState;
    }

    public void setState(State s) {
        m_itemState = s;
    }

    /**
     * Gets integer parameter from binding config. If parameter is not found, or
     * the value is outside of min <= x <= max, the default value is returned.
     * 
     * @param key
     * @param min
     * @param max
     * @param deflt default value in case not found
     * @return the integer parameter value, or deflt if not found or out of range
     */
    public int getIntParameter(String key, int min, int max, int deflt) {
        int i = deflt;
        String v = m_params.get(key);
        if (v != null) {
            try {
                int tmp = Integer.decode(v);
                if (tmp >= min && tmp <= max) {
                    i = tmp;
                }
            } catch (NumberFormatException e) {
                logger.error("bad number in int parameter configuration: {} = {}", key, v);
            }
        }
        return i;
    }

    public boolean hasFeature(String f) {
        return (m_feature.equals(f));
    }

    @Override
    public String toString() {
        String s = m_item.getName() + "->";
        if (m_type.equals(ADMsgType.INVALID)) {
            s = s + "SEND#";
            for (Entry<String, String> p : m_params.entrySet()) {
                s += ":" + p.getKey() + "=" + p.getValue() + ",";
            }
        } else {
            s = s + m_type + ":" + m_address + "#" + m_feature;
            for (Entry<String, String> p : m_params.entrySet()) {
                s += ":" + p.getKey() + "=" + p.getValue() + ",";
            }
        }
        return s;
    }
}