/*
 * Copyright 2005-2010 the original author or authors.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */ 
package org.wamblee.security.authorization;

import static org.wamblee.security.authorization.AuthorizationResult.*;

import javax.persistence.DiscriminatorValue;
import javax.persistence.Entity;
import javax.persistence.Transient;

/**
 * Test authorization rule that also counts the number of times the rule
 * matches.
 * 
 * @author Erik Brakkee
 */
@Entity
@DiscriminatorValue("TEST")
public class TestAuthorizationRule extends UrlAuthorizationRule {
    /**
     * Counts the number of matches.
     */
    @Transient
    private int matches = 0;

    /**
     * Creates a new TestAuthorizationRule object.
     * 
     */
    public TestAuthorizationRule(AuthorizationResult aResult, String aGroup,
        String aPath, Class<? extends Operation> aOperation) {
        super(aResult, new GroupUserCondition(aGroup),
            new StartsWithPathCondition(aPath), TestResource.class,
            new IsaOperationCondition(aOperation));
    }

    /**
     * Creates a new TestAuthorizationRule object.
     */
    protected TestAuthorizationRule() {
        super();
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.wamblee.security.authorization.UrlAuthorizationRule#getPath(java.
     * lang.Object)
     */
    @Override
    protected String getResourcePath(Object aResource) {
        return ((TestResource) aResource).getPath();
    }

    @Override
    public AuthorizationResult isAllowed(Object aResource,
        Operation aOperation, String aUser) {
        AuthorizationResult result = super.isAllowed(aResource, aOperation,
            aUser);

        if (result.equals(GRANTED) || result.equals(DENIED)) {
            matches++;
        }

        return result;
    }

    public int getMatchCount() {
        return matches;
    }

    public void reset() {
        matches = 0;
    }
}