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Grace Framework : Grace Web Common

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/*
 * Copyright 2011-2022 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
 *
 *      https://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.grails.web.servlet.mvc;

/**
 * Strategy interface for obtaining details about the currently executing request
 *
 * @author Graeme Rocher
 * @since 2.0
 */
public interface GrailsRequestStateLookupStrategy {

    /**
     * Obtains the context path to use from the request
     *
     * @return The context path
     */
    String getContextPath();

    /**
     * The character encoding of the request
     *
     * @return The character encoding
     */
    String getCharacterEncoding();
    /**
     * The controller name
     *
     * @return The controller name or null if not known
     */
    String getControllerName();

    /**
     * The controller namespace
     *
     * @return The controller namespace or null if not known
     */
    String getControllerNamespace();

    /**
     * The action name for the given controller name
     *
     * @param controllerName The controller name
     * @return The action name or null if not known
     */
    String getActionName(String controllerName);
    /**
     * The action name
     *
     * @return The action name or null if not known
     */
    String getActionName();

    /**
     * @return The HTTP method
     */
    String getHttpMethod();

    /**
     * @return the current request
     */
    GrailsWebRequest getWebRequest();
}