servletrequestcontext.java

来自「Wicket一个开发Java Web应用程序框架。它使得开发web应用程序变得容」· Java 代码 · 共 101 行

/*
 * 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.util.upload;

import java.io.IOException;
import java.io.InputStream;

import javax.servlet.http.HttpServletRequest;


/**
 * <p>
 * Provides access to the request information needed for a request made to an HTTP servlet.
 * </p>
 * 
 * @author <a href="mailto:[e-mail]">Martin Cooper</a>
 */
public class ServletRequestContext implements RequestContext
{

	// ----------------------------------------------------- Instance Variables

	/**
	 * The request for which the context is being provided.
	 */
	private final HttpServletRequest request;


	// ----------------------------------------------------------- Constructors

	/**
	 * Construct a context for this request.
	 * 
	 * @param request
	 *            The request to which this context applies.
	 */
	public ServletRequestContext(HttpServletRequest request)
	{
		this.request = request;
	}


	// --------------------------------------------------------- Public Methods

	/**
	 * Retrieve the content type of the request.
	 * 
	 * @return The content type of the request.
	 */
	public String getContentType()
	{
		return request.getContentType();
	}

	/**
	 * Retrieve the content length of the request.
	 * 
	 * @return The content length of the request.
	 */
	public int getContentLength()
	{
		return request.getContentLength();
	}

	/**
	 * Retrieve the input stream for the request.
	 * 
	 * @return The input stream for the request.
	 * 
	 * @throws IOException
	 *             if a problem occurs.
	 */
	public InputStream getInputStream() throws IOException
	{
		return request.getInputStream();
	}

	/**
	 * @see java.lang.Object#toString()
	 */
	public String toString()
	{
		return "ContentLength=" + this.getContentLength() + ", ContentType=" +
				this.getContentType();
	}
}