/*

 * 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.metadata.ant.conditions;

import java.util.ArrayList;

import java.util.List;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

import org.apache.tools.ant.BuildException;

import org.apache.tools.ant.taskdefs.condition.Condition;

import com.nokia.helium.metadata.ant.types.MetaDataFilter;

import com.nokia.helium.metadata.ant.types.MetaDataFilterSet;

/**

 * This class implements a Ant Condition which report true if it finds the given 

 * 

 * Example:

 * <pre> 

 *    <target name="test-metadata-regex">

 *      <au:assertTrue>

 *          <hlm:metadataRegexTest severity="ERROR" string="Error:">

 *              <metadatafilterset refid="filterset.sbs"/>

 *          </hlm:metadataRegexTest>

 *       </au:assertTrue>

 *   </target>

 * </pre>

 * 

 * 

 * @ant.type name="metadataRegexTest" category="Metadata"

 */

    private String string;  

    private List<MetaDataFilterSet> filterSets = new ArrayList<MetaDataFilterSet>();

    /**

     * Sets which severity to be searched.

     * 

     * @param severity

     * @ant.required

     */

        this.severity = severity;

    }

    /**

     * Sets which string to be matched against regular expression.

     * 

     * @param string

     * @ant.required

     */

    public void setString(String string) {

        this.string = string;

    }

    /**

     * Helper function to add the created filter

     * @param filter to be added to the filterset

     */

    public void add(MetaDataFilterSet filterSet) {

        if (filterSet != null) {

            filterSets.add(filterSet);

        }

    }

    /**

     * This method iterates through the regular expression patterns and match the input string against them.

     */

    public boolean eval() {

            throw new BuildException("'severity' attribute is not defined");

            throw new BuildException("'string' attribute is not defined");

        for (MetaDataFilterSet set : filterSets) {

            for (MetaDataFilter filter : set.getAllFilters()) {

                Pattern pattern = filter.getPattern();

                Matcher matcher = pattern.matcher(this.string);

                if (matcher.matches()) {

                }

            }

        }

        return false;

    }

}