/*
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2001-2002 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "Ant" and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache"
 *    nor may "Apache" appear in their names without prior written
 *    permission of the Apache Group.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

package org.apache.tools.ant.taskdefs.optional.sitraka;

import java.util.Vector;

/**
 * Filters information from coverage, somewhat similar to a <tt>FileSet</tt>.
 *
 * @author <a href="mailto:sbailliez@imediation.com">Stephane Bailliez</a>
 */
public class Filters {

    /** default regexp to exclude everything */
    public static final String DEFAULT_EXCLUDE = "*.*():E";

    /** say whether we should use the default excludes or not */
    protected boolean defaultExclude = true;

    /** user defined filters */
    protected Vector filters = new Vector();

    public Filters() {
    }

    /**
     * Automatically exclude all classes and methods
     * unless included in nested elements; optional, default true. 
     */
    public void setDefaultExclude(boolean value) {
        defaultExclude = value;
    }

    /**
     * include classes and methods in the analysis
     */
    public void addInclude(Include incl) {
        filters.addElement(incl);
    }

    /**
     * exclude classes and methods from the analysis
     */
    public void addExclude(Exclude excl) {
        filters.addElement(excl);
    }

    public String toString() {
        StringBuffer buf = new StringBuffer();
        final int size = filters.size();
        if (defaultExclude) {
            buf.append(DEFAULT_EXCLUDE);
            if (size > 0) {
                buf.append(',');
            }
        }
        for (int i = 0; i < size; i++) {
            buf.append(filters.elementAt(i).toString());
            if (i < size - 1) {
                buf.append(',');
            }
        }
        return buf.toString();
    }

    /**
     * an includes or excludes element
     */
    public abstract static class FilterElement {
        protected String clazz;
        protected String method = "*"; // default is all methods
        protected boolean enabled = true; // default is enable

        /** 
         * this one is deprecated.
         * @ant.task ignore="true"
         */
         
        public void setName(String value) { 
            clazz = value;
        }

        /**
         * The classname mask as a simple regular expression;
         * optional, defaults to "*"
         */
        public void setClass(String value) {
            clazz = value;
        }

        /**
         * The method mask as a simple regular expression;
         * optional, defaults to "*"
         */
        public void setMethod(String value) {
            method = value;
        }

        /** 
         * enable or disable the filter; optional, default true
         */
                 
        public void setEnabled(boolean value) {
            enabled = value;
        }

        public String toString() {
            return clazz + "." + method + "()";
        }
    }

    public static class Include extends FilterElement {
        public String toString() {
            return super.toString() + ":I" + (enabled ? "" : "#");
        }
    }

    public static class Exclude extends FilterElement {
        public String toString() {
            return super.toString() + ":E" + (enabled ? "" : "#");
        }
    }
}



