WebContext.java
/*
* 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.commons.chain.web.javax;
import java.util.Map;
import javax.servlet.http.Cookie;
import org.apache.commons.chain.Context;
import org.apache.commons.chain.impl.ContextBase;
/**
* Extended {@link Context} that provides web based applications that use
* it a "generic" view of HTTP related requests and responses, without
* tying the application to a particular underlying Java API (such as
* servlets). It is expected that a concrete subclass of {@link WebContext}
* for each API (such as
* {@code org.apache.commons.chain.web.javax.servlet.ServletWebContext}) will
* support adapting that particular API's implementation of request and
* response objects into this generic framework.
*
* <p>The characteristics of a web request/response are made visible via
* a series of JavaBeans properties (and mapped to read-only attributes
* of the same name, as supported by {@link ContextBase}.</p>
*
* @author Craig R. McClanahan
* @version $Revision$ $Date$
*/
public abstract class WebContext extends ContextBase {
private static final long serialVersionUID = 6804961872140299027L;
/**
* The Default-Constructor for this class.
*/
public WebContext() {
}
/**
* Return a mutable {@code Map} that maps application scope
* attribute names to their values.
*
* @return Application scope Map.
*/
public abstract Map<String, Object> getApplicationScope();
/**
* Return an immutable {@code Map} that maps header names to
* the first (or only) header value (as a String). Header names must
* be matched in a case-insensitive manner.
*
* @return Header values Map.
*/
public abstract Map<String, String> getHeader();
/**
* Return an immutable {@code Map} that maps header names to
* the set of all values specified in the request (as a String array).
* Header names must be matched in a case-insensitive manner.
*
* @return Header values Map.
*/
public abstract Map<String, String[]> getHeaderValues();
/**
* Return an immutable {@code Map} that maps context application
* initialization parameters to their values.
*
* @return Initialization parameter Map.
*/
public abstract Map<String, String> getInitParam();
/**
* Return an immutable {@code Map} that maps request parameter
* names to the first (or only) value (as a String).
*
* @return Request parameter Map.
*/
public abstract Map<String, String> getParam();
/**
* Return an immutable {@code Map} that maps request parameter
* names to the set of all values (as a String array).
*
* @return Request parameter Map.
*/
public abstract Map<String, String[]> getParamValues();
/**
* Return an immutable {@code Map} that maps cookie names to
* the set of cookies specified in the request.
*
* @return Map of Cookies.
*
* @since Chain 1.1
*/
public abstract Map<String, Cookie> getCookies();
/**
* Return a mutable {@code Map} that maps request scope
* attribute names to their values.
*
* @return Request scope Map.
*/
public abstract Map<String, Object> getRequestScope();
/**
* Return a mutable {@code Map} that maps session scope
* attribute names to their values.
*
* @return Session scope Map.
*/
public abstract Map<String, Object> getSessionScope();
}