/*

* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  

*

*/

package com.nokia.helium.signal.ant.types;

import java.util.Vector;

import org.apache.tools.ant.types.DataType;

/**

 * SignalInput class which is a type to store input for signals

 * Signals..

 * <targetCondition>

 *    <hasSeverity severity="error" file="${build.cache.log.dir}/signals/prep_work_status.xml" />

 * </targetCondition>

 * 

 */

public class SignalNotifierInput extends DataType

{

    private Vector<SignalInput> signalInputs = new Vector<SignalInput>();

    private Vector<NotifierInput> notifierInputList = new Vector<NotifierInput>();

    /**

     * Helper function called by ant to create a new notifier for

     * this input.

     * @return ReferenceType created ReferenceType.

     */    

    public NotifierInput createNotifierInput() {

        NotifierInput notifierInput =  new NotifierInput();

        add(notifierInput);

        return notifierInput;

    }

    /**

     * Adds the created notifier to the list

     * @param ReferenceType notifier to be added to the list.

     */    

    public void add(NotifierInput notifierInput) {

        if (notifierInput != null) {

            notifierInputList.add(notifierInput);

        }

    }

    /**

     * Helper function to add the created signalinput

     * @param filter to be added to the filterset

     */

    public void add(SignalInput input) {

        signalInputs.add(input);

    }

    /**

     * Helper function called by ant to create the new signalinput

     */

    public SignalInput createSignalInput() {

        SignalInput input =  new SignalInput();

        add(input);

        return input;

    }

    public NotifierInput getNotifierInput() {

        NotifierInput input = null;

        if (notifierInputList.size() > 1) {

            throw new BuildException("One and only signal input can be defined");

        }

        if (!notifierInputList.isEmpty()) {

            input = notifierInputList.elementAt(0);

        }

        return input;

    }

    /**

     * Gets the signal input of this config.

     * @return signal input stored in the config, by dereferencing the input ref. 

     */    

    public SignalInput getSignalInput() {

        if (signalInputs.isEmpty()) {

            throw new BuildException("No signal input in signal config, failed: ");

        }

        if (signalInputs.size() > 1) {

            throw new BuildException("One and only signal input can be defined");

        }

        Object refObject =  signalInputs.elementAt(0).getRefid().getReferencedObject();

        if (refObject == null) {

            throw new BuildException("Signal Input Reference not exists");

        }

        SignalInput signalInput = (SignalInput)refObject;

        return signalInput;

    }

}