1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package okhttp3.internal.connection;
18
19 import java.io.IOException;
20 import okhttp3.Interceptor;
21 import okhttp3.OkHttpClient;
22 import okhttp3.Request;
23 import okhttp3.Response;
24 import okhttp3.internal.http.RealInterceptorChain;
25
26 /** Opens a connection to the target server and proceeds to the next interceptor. */
27 public final class ConnectInterceptor implements Interceptor {
28 public final OkHttpClient client;
29
30 public ConnectInterceptor(OkHttpClient client) {
31 this.client = client;
32 }
33
34 @Override public Response intercept(Chain chain) throws IOException {
35 RealInterceptorChain realChain = (RealInterceptorChain) chain;
36 Request request = realChain.request();
37 Transmitter transmitter = realChain.transmitter();
38
39 // We need the network to satisfy this request. Possibly for validating a conditional GET.
40 boolean doExtensiveHealthChecks = !request.method().equals("GET");
41 Exchange exchange = transmitter.newExchange(chain, doExtensiveHealthChecks);
42
43 return realChain.proceed(request, transmitter, exchange);
44 }
45 }
46