StringItem.java

/**
 * Copyright (c) 2014-2017 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.eclipse.smarthome.core.library.items;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import org.eclipse.smarthome.core.items.GenericItem;
import org.eclipse.smarthome.core.library.CoreItemFactory;
import org.eclipse.smarthome.core.library.types.DateTimeType;
import org.eclipse.smarthome.core.library.types.StringType;
import org.eclipse.smarthome.core.types.Command;
import org.eclipse.smarthome.core.types.RefreshType;
import org.eclipse.smarthome.core.types.State;
import org.eclipse.smarthome.core.types.TypeParser;
import org.eclipse.smarthome.core.types.UnDefType;

/**
 * A StringItem can be used for any kind of string to either send or receive
 * from a device.
 *
 * @author Kai Kreuzer - Initial contribution and API
 *
 */
public class StringItem extends GenericItem {

    private static List<Class<? extends State>> acceptedDataTypes = new ArrayList<Class<? extends State>>();
    private static List<Class<? extends Command>> acceptedCommandTypes = new ArrayList<Class<? extends Command>>();

    static {
        acceptedDataTypes.add(UnDefType.class);
        acceptedDataTypes.add(StringType.class);
        acceptedDataTypes.add((DateTimeType.class));

        acceptedCommandTypes.add(RefreshType.class);
        acceptedCommandTypes.add(StringType.class);
    }

    public StringItem(String name) {
        super(CoreItemFactory.STRING, name);
    }

    public void send(StringType command) {
        internalSend(command);
    }

    @Override
    public List<Class<? extends State>> getAcceptedDataTypes() {
        return Collections.unmodifiableList(acceptedDataTypes);
    }

    @Override
    public List<Class<? extends Command>> getAcceptedCommandTypes() {
        return Collections.unmodifiableList(acceptedCommandTypes);
    }

    @Override
    public State getStateAs(Class<? extends State> typeClass) {
        ArrayList<Class<? extends State>> list = new ArrayList<Class<? extends State>>();
        list.add(typeClass);
        State convertedState = TypeParser.parseState(list, state.toString());
        if (convertedState != null) {
            return convertedState;
        } else {
            return super.getStateAs(typeClass);
        }
    }
}