| /* |
| * |
| * 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.qpid.restapi; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| /** |
| * An HttpTransaction encapsulates an HTTP request received and a response to be generated in one HTTP request/response |
| * "transaction". It provides methods for examining the request from the client, and for building and sending the |
| * response from the server. |
| * <p> |
| * Note that the HttpTransaction interface isn't intended to be completely general, rather it is intended to abstract |
| * the services needed in org.apache.qpid.restapi in such a way as to be neutral as to whether the Web Server is |
| * based on com.sun.net.httpserver.HttpServer or javax.servlet.http.HttpServlet. |
| * <p> |
| * The Server and HttpTransaction interfaces are intended to provide abstractions to enable the "business logic" to |
| * be isolated from the actual Web Server implementation choice, so for example a concrete HttpTransaction implementation |
| * could be created by wrapping a com.sun.net.httpserver.HttpExchange, but equally another implementation could wrap |
| * javax.servlet.http.HttpServletRequest and javax.servlet.http.HttpServletResponse so for example an HttpServlet |
| * could delegate to a Server instance passing the HttpTransaction it constructed from the HttpServletRequest and |
| * HttpServletResponse. |
| * |
| * @author Fraser Adams |
| */ |
| public interface HttpTransaction |
| { |
| /** |
| * Log the HTTP request information (primarily for debugging purposes) |
| */ |
| public void logRequest(); |
| |
| /** |
| * Return the content passed in the request from the client as a Stream. |
| * @return the content passed in the request from the client as a Stream. |
| */ |
| public InputStream getRequestStream() throws IOException; |
| |
| /** |
| * Return the content passed in the request from the client as a String. |
| * @return the content passed in the request from the client as a String. |
| */ |
| public String getRequestString() throws IOException; |
| |
| /** |
| * Return the content passed in the request from the client as a byte[]. |
| * @return the content passed in the request from the client as a byte[]. |
| */ |
| public byte[] getRequest() throws IOException; |
| |
| /** |
| * Send the content passed as a String as an HTTP response back to the client. |
| * @param status the HTTP status code e.g. 200 for OK. |
| * @param mimeType the mimeType of the response content e.g. text/plain, text/xml, image/jpeg etc. |
| * @param content the content of the response passed as a String. |
| */ |
| public void sendResponse(final int status, final String mimeType, final String content) throws IOException; |
| |
| /** |
| * Send the content passed as a byte[] as an HTTP response back to the client. |
| * @param status the HTTP status code e.g. 200 for OK. |
| * @param mimeType the mimeType of the response content e.g. text/plain, text/xml, image/jpeg etc. |
| * @param content the content of the response passed as a byte[]. |
| */ |
| public void sendResponse(final int status, final String mimeType, final byte[] content) throws IOException; |
| |
| /** |
| * Send the content passed as an InputStream as an HTTP response back to the client. |
| * @param status the HTTP status code e.g. 200 for OK. |
| * @param mimeType the mimeType of the response content e.g. text/plain, text/xml, image/jpeg etc. |
| * @param is the content of the response passed as an InputStream. |
| */ |
| public void sendResponse(final int status, final String mimeType, final InputStream is) throws IOException; |
| |
| /** |
| * Returns the Internet Protocol (IP) address of the client or last proxy that sent the request. |
| * @return the Internet Protocol (IP) address of the client or last proxy that sent the request. |
| */ |
| public String getRemoteAddr(); |
| |
| /** |
| * Returns the fully qualified name of the client or the last proxy that sent the request. |
| * @return the fully qualified name of the client or the last proxy that sent the request. |
| */ |
| public String getRemoteHost(); |
| |
| /** |
| * Returns the Internet Protocol (IP) source port of the client or last proxy that sent the request. |
| * @return the Internet Protocol (IP) source port of the client or last proxy that sent the request. |
| */ |
| public int getRemotePort(); |
| |
| /** |
| * Returns a String containing the name of the current authenticated user. If the user has not been authenticated, |
| * the method returns null. |
| * @return a String containing the name of the user making this request; null if the user has not been authenticated. |
| */ |
| public String getPrincipal(); |
| |
| /** |
| * Returns the name of the HTTP method with which this request was made, for example, GET, POST, or PUT. |
| * @return a String specifying the name of the method with which this request was made. |
| */ |
| public String getMethod(); |
| |
| /** |
| * Returns the part of this request's URL from the protocol name up to the query string in the first line of |
| * the HTTP request. |
| * @return a String containing the part of the URL from the protocol name up to the query string. |
| */ |
| public String getRequestURI(); |
| |
| /** |
| * Sets a response header with the given name and value. If the header had already been set, the new value |
| * overwrites the previous one. |
| * @param name a String specifying the header name. |
| * @param value a String specifying the header value. If it contains octet string, it should be encoded according |
| * to RFC 2047. |
| */ |
| public void setHeader(final String name, final String value); |
| |
| /** |
| * Returns the value of the specified request header as a String. If the request did not include a header of the |
| * specified name, this method returns null. If there are multiple headers with the same name, this method returns |
| * the first head in the request. The header name is case insensitive. You can use this method with any request |
| * header. |
| * @param name a String specifying the header name. |
| * @return a String containing the value of the requested header, or null if the request does not have a header of |
| * that name. |
| */ |
| public String getHeader(final String name); |
| |
| /** |
| * Returns the String value of the specified cookie. |
| * @param name a String specifying the cookie name. |
| */ |
| public String getCookie(final String name); |
| |
| /** |
| * Adds the specified cookie to the response. This method can be called multiple times to set more than one cookie. |
| * @param name a String specifying the cookie name. |
| * @param value a String specifying the cookie value. |
| */ |
| public void addCookie(final String name, final String value); |
| } |
| |
| |