View Javadoc

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  package org.apache.http.protocol;
28  
29  import java.io.IOException;
30  import java.util.List;
31  
32  import org.apache.http.HttpException;
33  import org.apache.http.HttpRequest;
34  import org.apache.http.HttpRequestInterceptor;
35  import org.apache.http.HttpResponse;
36  import org.apache.http.HttpResponseInterceptor;
37  import org.apache.http.annotation.ThreadingBehavior;
38  import org.apache.http.annotation.Contract;
39  
40  /**
41   * Immutable {@link HttpProcessor}.
42   *
43   * @since 4.1
44   */
45  @Contract(threading = ThreadingBehavior.IMMUTABLE_CONDITIONAL)
46  public final class ImmutableHttpProcessor implements HttpProcessor {
47  
48      private final HttpRequestInterceptor[] requestInterceptors;
49      private final HttpResponseInterceptor[] responseInterceptors;
50  
51      public ImmutableHttpProcessor(
52              final HttpRequestInterceptor[] requestInterceptors,
53              final HttpResponseInterceptor[] responseInterceptors) {
54          super();
55          if (requestInterceptors != null) {
56              final int l = requestInterceptors.length;
57              this.requestInterceptors = new HttpRequestInterceptor[l];
58              System.arraycopy(requestInterceptors, 0, this.requestInterceptors, 0, l);
59          } else {
60              this.requestInterceptors = new HttpRequestInterceptor[0];
61          }
62          if (responseInterceptors != null) {
63              final int l = responseInterceptors.length;
64              this.responseInterceptors = new HttpResponseInterceptor[l];
65              System.arraycopy(responseInterceptors, 0, this.responseInterceptors, 0, l);
66          } else {
67              this.responseInterceptors = new HttpResponseInterceptor[0];
68          }
69      }
70  
71      /**
72       * @since 4.3
73       */
74      public ImmutableHttpProcessor(
75              final List<HttpRequestInterceptor> requestInterceptors,
76              final List<HttpResponseInterceptor> responseInterceptors) {
77          super();
78          if (requestInterceptors != null) {
79              final int l = requestInterceptors.size();
80              this.requestInterceptors = requestInterceptors.toArray(new HttpRequestInterceptor[l]);
81          } else {
82              this.requestInterceptors = new HttpRequestInterceptor[0];
83          }
84          if (responseInterceptors != null) {
85              final int l = responseInterceptors.size();
86              this.responseInterceptors = responseInterceptors.toArray(new HttpResponseInterceptor[l]);
87          } else {
88              this.responseInterceptors = new HttpResponseInterceptor[0];
89          }
90      }
91  
92      /**
93       * @deprecated (4.3) do not use.
94       */
95      @Deprecated
96      public ImmutableHttpProcessor(
97              final HttpRequestInterceptorList requestInterceptors,
98              final HttpResponseInterceptorList responseInterceptors) {
99          super();
100         if (requestInterceptors != null) {
101             final int count = requestInterceptors.getRequestInterceptorCount();
102             this.requestInterceptors = new HttpRequestInterceptor[count];
103             for (int i = 0; i < count; i++) {
104                 this.requestInterceptors[i] = requestInterceptors.getRequestInterceptor(i);
105             }
106         } else {
107             this.requestInterceptors = new HttpRequestInterceptor[0];
108         }
109         if (responseInterceptors != null) {
110             final int count = responseInterceptors.getResponseInterceptorCount();
111             this.responseInterceptors = new HttpResponseInterceptor[count];
112             for (int i = 0; i < count; i++) {
113                 this.responseInterceptors[i] = responseInterceptors.getResponseInterceptor(i);
114             }
115         } else {
116             this.responseInterceptors = new HttpResponseInterceptor[0];
117         }
118     }
119 
120     public ImmutableHttpProcessor(final HttpRequestInterceptor... requestInterceptors) {
121         this(requestInterceptors, null);
122     }
123 
124     public ImmutableHttpProcessor(final HttpResponseInterceptor... responseInterceptors) {
125         this(null, responseInterceptors);
126     }
127 
128     @Override
129     public void process(
130             final HttpRequest request,
131             final HttpContext context) throws IOException, HttpException {
132         for (final HttpRequestInterceptor requestInterceptor : this.requestInterceptors) {
133             requestInterceptor.process(request, context);
134         }
135     }
136 
137     @Override
138     public void process(
139             final HttpResponse response,
140             final HttpContext context) throws IOException, HttpException {
141         for (final HttpResponseInterceptor responseInterceptor : this.responseInterceptors) {
142             responseInterceptor.process(response, context);
143         }
144     }
145 
146 }