| // ======================================================================== |
| // Copyright (c) 2006-2009 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| package org.eclipse.jetty.client; |
| |
| import java.io.IOException; |
| |
| import org.eclipse.jetty.http.HttpFields; |
| import org.eclipse.jetty.io.Buffer; |
| |
| /** |
| * An exchange that retains response status and response headers for later use. |
| */ |
| public class CachedExchange extends HttpExchange |
| { |
| private final HttpFields _responseFields; |
| private volatile int _responseStatus; |
| |
| /** |
| * Creates a new CachedExchange. |
| * |
| * @param cacheHeaders true to cache response headers, false to not cache them |
| */ |
| public CachedExchange(boolean cacheHeaders) |
| { |
| _responseFields = cacheHeaders ? new HttpFields() : null; |
| } |
| |
| public synchronized int getResponseStatus() |
| { |
| if (getStatus() < HttpExchange.STATUS_PARSING_HEADERS) |
| throw new IllegalStateException("Response not received yet"); |
| return _responseStatus; |
| } |
| |
| public synchronized HttpFields getResponseFields() |
| { |
| if (getStatus() < HttpExchange.STATUS_PARSING_CONTENT) |
| throw new IllegalStateException("Headers not completely received yet"); |
| return _responseFields; |
| } |
| |
| @Override |
| protected synchronized void onResponseStatus(Buffer version, int status, Buffer reason) throws IOException |
| { |
| _responseStatus = status; |
| super.onResponseStatus(version, status, reason); |
| } |
| |
| @Override |
| protected synchronized void onResponseHeader(Buffer name, Buffer value) throws IOException |
| { |
| if (_responseFields != null) |
| { |
| _responseFields.add(name, value.asImmutableBuffer()); |
| } |
| |
| super.onResponseHeader(name, value); |
| } |
| } |