org.apache.wicket.authorization.strategies.CompoundAuthorizationStrategy.java Source code

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Here is the source code for org.apache.wicket.authorization.strategies.CompoundAuthorizationStrategy.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.wicket.authorization.strategies;

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

import org.apache.wicket.Component;
import org.apache.wicket.authorization.Action;
import org.apache.wicket.authorization.IAuthorizationStrategy;
import org.apache.wicket.request.component.IRequestableComponent;
import org.apache.wicket.request.mapper.parameter.PageParameters;
import org.apache.wicket.request.resource.IResource;

/**
 * Compound implementation of the IAuthorizationStrategy that lets you chain two or more strategies
 * together.
 * 
 * @author ivaynberg
 */
public class CompoundAuthorizationStrategy implements IAuthorizationStrategy {
    /** List of strategies to consult */
    private final List<IAuthorizationStrategy> strategies = new ArrayList<>();

    /**
     * Adds a strategy to the chain
     * 
     * @param strategy
     *            Strategy to add
     */
    public final void add(IAuthorizationStrategy strategy) {
        if (strategy == null) {
            throw new IllegalArgumentException("Strategy argument cannot be null");
        }
        strategies.add(strategy);
    }

    /**
     * @see org.apache.wicket.authorization.IAuthorizationStrategy#isInstantiationAuthorized(java.lang.Class)
     */
    @Override
    public final <T extends IRequestableComponent> boolean isInstantiationAuthorized(Class<T> componentClass) {
        for (IAuthorizationStrategy strategy : strategies) {
            if (!strategy.isInstantiationAuthorized(componentClass)) {
                return false;
            }
        }
        return true;
    }

    /**
     * @see org.apache.wicket.authorization.IAuthorizationStrategy#isActionAuthorized(org.apache.wicket.Component,
     *      org.apache.wicket.authorization.Action)
     */
    @Override
    public final boolean isActionAuthorized(Component component, Action action) {
        for (IAuthorizationStrategy strategy : strategies) {
            if (!strategy.isActionAuthorized(component, action)) {
                return false;
            }
        }
        return true;
    }

    @Override
    public boolean isResourceAuthorized(IResource resource, PageParameters parameters) {
        for (IAuthorizationStrategy strategy : strategies) {
            if (!strategy.isResourceAuthorized(resource, parameters)) {
                return false;
            }
        }
        return true;
    }
}