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feilong is a suite of core and expanded libraries that include utility classes, http, excel,cvs, io classes, and much much more.
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/*
* ====================================================================
* 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
*
* Further responsibilities such as communication with the opposite
* endpoint is delegated to the next executor in the request execution
* chain.
*
*
* @since 4.3
*/
@Contract(threading = ThreadingBehavior.IMMUTABLE_CONDITIONAL)
@SuppressWarnings("deprecation")
public class ProtocolExec implements ClientExecChain{
/** The Constant log. */
private static final Logger log = LoggerFactory.getLogger(ProtocolExec.class);
//---------------------------------------------------------------
private final ClientExecChain requestExecutor;
private final HttpProcessor httpProcessor;
public ProtocolExec(final ClientExecChain requestExecutor, final HttpProcessor httpProcessor){
Args.notNull(requestExecutor, "HTTP client request executor");
Args.notNull(httpProcessor, "HTTP protocol processor");
this.requestExecutor = requestExecutor;
this.httpProcessor = httpProcessor;
}
void rewriteRequestURI(final HttpRequestWrapper request,final HttpRoute route,final boolean normalizeUri) throws ProtocolException{
final URI uri = request.getURI();
if (uri != null){
try{
request.setURI(URIUtils.rewriteURIForRoute(uri, route, normalizeUri));
}catch (final URISyntaxException ex){
throw new ProtocolException("Invalid URI: " + uri, ex);
}
}
}
@Override
public CloseableHttpResponse execute(
final HttpRoute route,
final HttpRequestWrapper request,
final HttpClientContext context,
final HttpExecutionAware execAware) throws IOException,HttpException{
Args.notNull(route, "HTTP route");
Args.notNull(request, "HTTP request");
Args.notNull(context, "HTTP context");
final HttpRequest original = request.getOriginal();
URI uri = null;
if (original instanceof HttpUriRequest){
uri = ((HttpUriRequest) original).getURI();
}else{
final String uriString = original.getRequestLine().getUri();
try{
uri = URI.create(uriString);
}catch (final IllegalArgumentException ex){
if (log.isDebugEnabled()){
log.debug(
"Unable to parse '" + uriString + "' as a valid URI; "
+ "request URI and Host header may be inconsistent",
ex);
}
}
}
request.setURI(uri);
// Re-write request URI if needed
rewriteRequestURI(request, route, context.getRequestConfig().isNormalizeUri());
// final HttpParams params = request.getParams();
HttpHost virtualHost = null;
// HttpHost virtualHost = (HttpHost) params.getParameter(ClientPNames.VIRTUAL_HOST);
// HTTPCLIENT-1092 - add the port if necessary
if (virtualHost != null && virtualHost.getPort() == -1){
final int port = route.getTargetHost().getPort();
if (port != -1){
virtualHost = new HttpHost(virtualHost.getHostName(), port, virtualHost.getSchemeName());
}
if (log.isDebugEnabled()){
log.debug("Using virtual host" + virtualHost);
}
}
HttpHost target = null;
if (virtualHost != null){
target = virtualHost;
}else{
if (uri != null && uri.isAbsolute() && uri.getHost() != null){
target = new HttpHost(uri.getHost(), uri.getPort(), uri.getScheme());
}
}
if (target == null){
target = request.getTarget();
}
if (target == null){
target = route.getTargetHost();
}
// Get user info from the URI
if (uri != null){
final String userinfo = uri.getUserInfo();
if (userinfo != null){
CredentialsProvider credsProvider = context.getCredentialsProvider();
if (credsProvider == null){
credsProvider = new BasicCredentialsProvider();
context.setCredentialsProvider(credsProvider);
}
credsProvider.setCredentials(new AuthScope(target), new UsernamePasswordCredentials(userinfo));
}
}
// Run request protocol interceptors
context.setAttribute(HttpCoreContext.HTTP_TARGET_HOST, target);
context.setAttribute(HttpClientContext.HTTP_ROUTE, route);
context.setAttribute(HttpCoreContext.HTTP_REQUEST, request);
this.httpProcessor.process(request, context);
final CloseableHttpResponse response = this.requestExecutor.execute(route, request, context, execAware);
try{
// Run response protocol interceptors
context.setAttribute(HttpCoreContext.HTTP_RESPONSE, response);
this.httpProcessor.process(response, context);
return response;
}catch (final RuntimeException ex){
response.close();
throw ex;
}catch (final IOException ex){
response.close();
throw ex;
}catch (final HttpException ex){
response.close();
throw ex;
}
}
}