1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27
28 package org.apache.hc.client5.http.impl.classic;
29
30 import java.io.IOException;
31
32 import org.apache.hc.client5.http.classic.ExecChain;
33 import org.apache.hc.client5.http.classic.ExecChainHandler;
34 import org.apache.hc.core5.http.ClassicHttpRequest;
35 import org.apache.hc.core5.http.ClassicHttpResponse;
36 import org.apache.hc.core5.http.HttpException;
37
38 class ExecChainElement {
39
40 private final ExecChainHandler handler;
41 private final ExecChainElement next;
42
43 ExecChainElement(final ExecChainHandler handler, final ExecChainElement next) {
44 this.handler = handler;
45 this.next = next;
46 }
47
48 public ClassicHttpResponse execute(
49 final ClassicHttpRequest request,
50 final ExecChain.Scope scope) throws IOException, HttpException {
51 return handler.execute(request, scope, next != null ? next::execute : null);
52 }
53
54 @Override
55 public String toString() {
56 return "{" +
57 "handler=" + handler.getClass() +
58 ", next=" + (next != null ? next.handler.getClass() : "null") +
59 '}';
60 }
61 }