| /* |
| * Copyright 1999-2001,2004 The Apache Software Foundation. |
| * |
| * 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 |
| * |
| * 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.catalina.core; |
| |
| |
| import java.io.IOException; |
| |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServletResponse; |
| |
| import org.apache.catalina.Host; |
| import org.apache.catalina.connector.Request; |
| import org.apache.catalina.connector.Response; |
| import org.apache.catalina.util.StringManager; |
| import org.apache.catalina.valves.ValveBase; |
| |
| |
| /** |
| * Valve that implements the default basic behavior for the |
| * <code>StandardEngine</code> container implementation. |
| * <p> |
| * <b>USAGE CONSTRAINT</b>: This implementation is likely to be useful only |
| * when processing HTTP requests. |
| * |
| * @author Craig R. McClanahan |
| * @version $Revision$ $Date$ |
| */ |
| |
| final class StandardEngineValve |
| extends ValveBase { |
| |
| |
| // ----------------------------------------------------- Instance Variables |
| |
| |
| /** |
| * The descriptive information related to this implementation. |
| */ |
| private static final String info = |
| "org.apache.catalina.core.StandardEngineValve/1.0"; |
| |
| |
| /** |
| * The string manager for this package. |
| */ |
| private static final StringManager sm = |
| StringManager.getManager(Constants.Package); |
| |
| |
| // ------------------------------------------------------------- Properties |
| |
| |
| /** |
| * Return descriptive information about this Valve implementation. |
| */ |
| public String getInfo() { |
| |
| return (info); |
| |
| } |
| |
| |
| // --------------------------------------------------------- Public Methods |
| |
| |
| /** |
| * Select the appropriate child Host to process this request, |
| * based on the requested server name. If no matching Host can |
| * be found, return an appropriate HTTP error. |
| * |
| * @param request Request to be processed |
| * @param response Response to be produced |
| * @param valveContext Valve context used to forward to the next Valve |
| * |
| * @exception IOException if an input/output error occurred |
| * @exception ServletException if a servlet error occurred |
| */ |
| public final void invoke(Request request, Response response) |
| throws IOException, ServletException { |
| |
| // Select the Host to be used for this Request |
| Host host = request.getHost(); |
| if (host == null) { |
| response.sendError |
| (HttpServletResponse.SC_BAD_REQUEST, |
| sm.getString("standardEngine.noHost", |
| request.getServerName())); |
| return; |
| } |
| |
| // Ask this Host to process this request |
| host.getPipeline().getFirst().invoke(request, response); |
| |
| } |
| |
| } |