SendKeysHitDeferred.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.lcn.mappingtarget;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.openhab.binding.lcn.common.LcnAddr;
import org.openhab.binding.lcn.common.LcnDefs;
import org.openhab.binding.lcn.common.PckGenerator;
import org.openhab.binding.lcn.connection.Connection;
import org.openhab.binding.lcn.input.ModStatusBinSensors;
import org.openhab.binding.lcn.input.ModStatusKeyLocks;
import org.openhab.binding.lcn.input.ModStatusLedsAndLogicOps;
import org.openhab.binding.lcn.input.ModStatusOutput;
import org.openhab.binding.lcn.input.ModStatusRelays;
import org.openhab.binding.lcn.input.ModStatusVar;
import org.openhab.core.events.EventPublisher;
import org.openhab.core.items.Item;
import org.openhab.core.types.Command;

/**
 * Sends keys deferred / delayed.
 * Supports multiple tables at once.
 * Only {@link LcnDefs.SendKeyCommand#HIT} is supported.
 *
 * @author Tobias J�ttner
 */
public class SendKeysHitDeferred extends TargetWithLcnAddr {

    /** Pattern to parse send-keys deferred commands. */
    private static final Pattern PATTERN_SENDKEYS_HIT_DEFERRED = Pattern.compile(
            "(?<keys>([ABCD][12345678])*)(\\.HIT)?\\.(?<time>\\d+)(?<timeUnit>.+)",
            Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE);

    /** Send-flags for the 4x8 keys. */
    private final boolean[][] keys;

    /** Delay time or 0. */
    private final int time;

    /** The delay time's unit. */
    private final LcnDefs.TimeUnit timeUnit;

    /**
     * Constructor.
     * 
     * @param addr the target LCN address
     * @param keys the 4x8 send-flags (true = send)
     * @param time the delay time
     * @param timeUnit the delay time's unit
     */
    SendKeysHitDeferred(LcnAddr addr, boolean[][] keys, int time, LcnDefs.TimeUnit timeUnit) {
        super(addr);
        this.keys = keys;
        this.time = time;
        this.timeUnit = timeUnit;
    }

    /**
     * Tries to parse the given input text.
     * 
     * @param input the text to parse
     * @return the parsed {@link SendKeysHitDeferred} or null
     */
    static Target tryParseTarget(String input) {
        CmdAndAddressRet header = CmdAndAddressRet.parse(input, true);
        if (header != null) {
            try {
                Matcher matcher;
                switch (header.getCmd().toUpperCase()) {
                    case "KEYS":
                        if ((matcher = PATTERN_SENDKEYS_HIT_DEFERRED.matcher(header.getRestInput())).matches()) {
                            boolean[][] keys = new boolean[][] { new boolean[8], new boolean[8], new boolean[8],
                                    new boolean[8] };
                            String s = matcher.group("keys");
                            for (int i = 0; i < s.length(); i += 2) {
                                String key = s.substring(i, i + 2).toUpperCase();
                                int tableId;
                                switch (key.charAt(0)) {
                                    case 'A':
                                        tableId = 0;
                                        break;
                                    case 'B':
                                        tableId = 1;
                                        break;
                                    case 'C':
                                        tableId = 2;
                                        break;
                                    case 'D':
                                        tableId = 3;
                                        break;
                                    default:
                                        throw new Error();
                                }
                                int keyId = Integer.parseInt(key.substring(1, 2)) - 1;
                                keys[tableId][keyId] = true;
                            }
                            LcnDefs.TimeUnit timeUnit = LcnDefs.TimeUnit.parse(matcher.group("timeUnit"));
                            return new SendKeysHitDeferred(header.getAddr(), keys,
                                    Integer.parseInt(matcher.group("time")), timeUnit);
                        }
                        break;
                }
            } catch (IllegalArgumentException ex) {
            }
        }
        return null;
    }

    /** {@inheritDoc} */
    @Override
    public void send(Connection conn, Item item, Command cmd) {
        for (int tableId = 0; tableId < 4; ++tableId) {
            for (int keyId = 0; keyId < 8; ++keyId) {
                if (this.keys[tableId][keyId]) { // Send if at least one key should be sent
                    conn.queue(this.addr, !this.addr.isGroup(),
                            PckGenerator.sendKeysHitDefered(tableId, this.time, this.timeUnit, this.keys[tableId]));
                    break;
                }
            }
        }
    }

    /** {@inheritDoc} */
    @Override
    public void register(Connection conn) {
    }

    /** {@inheritDoc} */
    @Override
    public boolean visualizationHandleOutputStatus(ModStatusOutput pchkInput, Command cmd, Item item,
            EventPublisher eventPublisher) {
        return false;
    }

    /** {@inheritDoc} */
    @Override
    public boolean visualizationHandleRelaysStatus(ModStatusRelays pchkInput, Command cmd, Item item,
            EventPublisher eventPublisher) {
        return false;
    }

    /** {@inheritDoc} */
    @Override
    public boolean visualizationBinSensorsStatus(ModStatusBinSensors pchkInput, Command cmd, Item item,
            EventPublisher eventPublisher) {
        return false;
    }

    /** {@inheritDoc} */
    @Override
    public boolean visualizationVarStatus(ModStatusVar pchkInput, Command cmd, Item item,
            EventPublisher eventPublisher) {
        return false;
    }

    /** {@inheritDoc} */
    @Override
    public boolean visualizationLedsAndLogicOpsStatus(ModStatusLedsAndLogicOps pchkInput, Command cmd, Item item,
            EventPublisher eventPublisher) {
        return false;
    }

    /** {@inheritDoc} */
    @Override
    public boolean visualizationKeyLocksStatus(ModStatusKeyLocks pchkInput, Command cmd, Item item,
            EventPublisher eventPublisher) {
        return false;
    }

}