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1 /* |
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2 * ==================================================================== |
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3 * Licensed to the Apache Software Foundation (ASF) under one |
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4 * or more contributor license agreements. See the NOTICE file |
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5 * distributed with this work for additional information |
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6 * regarding copyright ownership. The ASF licenses this file |
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7 * to you under the Apache License, Version 2.0 (the |
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8 * "License"); you may not use this file except in compliance |
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9 * with the License. You may obtain a copy of the License at |
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10 * |
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11 * http://www.apache.org/licenses/LICENSE-2.0 |
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12 * |
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13 * Unless required by applicable law or agreed to in writing, |
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14 * software distributed under the License is distributed on an |
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15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
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16 * KIND, either express or implied. See the License for the |
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17 * specific language governing permissions and limitations |
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18 * under the License. |
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19 * ==================================================================== |
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20 * |
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21 * This software consists of voluntary contributions made by many |
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22 * individuals on behalf of the Apache Software Foundation. For more |
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23 * information on the Apache Software Foundation, please see |
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24 * <http://www.apache.org/>. |
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25 * |
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26 */ |
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27 |
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28 package ch.boye.httpclientandroidlib.impl.client; |
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29 |
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30 import java.net.URI; |
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31 import java.net.URISyntaxException; |
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32 |
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33 import ch.boye.httpclientandroidlib.annotation.NotThreadSafe; |
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34 |
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35 import ch.boye.httpclientandroidlib.HttpRequest; |
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36 import ch.boye.httpclientandroidlib.ProtocolException; |
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37 import ch.boye.httpclientandroidlib.ProtocolVersion; |
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38 import ch.boye.httpclientandroidlib.RequestLine; |
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39 import ch.boye.httpclientandroidlib.client.methods.HttpUriRequest; |
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40 import ch.boye.httpclientandroidlib.message.AbstractHttpMessage; |
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41 import ch.boye.httpclientandroidlib.message.BasicRequestLine; |
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42 import ch.boye.httpclientandroidlib.params.HttpProtocolParams; |
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43 |
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44 /** |
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45 * A wrapper class for {@link HttpRequest}s that can be used to change |
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46 * properties of the current request without modifying the original |
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47 * object. |
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48 * </p> |
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49 * This class is also capable of resetting the request headers to |
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50 * the state of the original request. |
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51 * |
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52 * |
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53 * @since 4.0 |
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54 */ |
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55 @NotThreadSafe |
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56 public class RequestWrapper extends AbstractHttpMessage implements HttpUriRequest { |
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57 |
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58 private final HttpRequest original; |
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59 |
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60 private URI uri; |
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61 private String method; |
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62 private ProtocolVersion version; |
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63 private int execCount; |
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64 |
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65 public RequestWrapper(final HttpRequest request) throws ProtocolException { |
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66 super(); |
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67 if (request == null) { |
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68 throw new IllegalArgumentException("HTTP request may not be null"); |
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69 } |
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70 this.original = request; |
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71 setParams(request.getParams()); |
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72 setHeaders(request.getAllHeaders()); |
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73 // Make a copy of the original URI |
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74 if (request instanceof HttpUriRequest) { |
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75 this.uri = ((HttpUriRequest) request).getURI(); |
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76 this.method = ((HttpUriRequest) request).getMethod(); |
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77 this.version = null; |
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78 } else { |
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79 RequestLine requestLine = request.getRequestLine(); |
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80 try { |
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81 this.uri = new URI(requestLine.getUri()); |
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82 } catch (URISyntaxException ex) { |
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83 throw new ProtocolException("Invalid request URI: " |
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84 + requestLine.getUri(), ex); |
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85 } |
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86 this.method = requestLine.getMethod(); |
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87 this.version = request.getProtocolVersion(); |
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88 } |
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89 this.execCount = 0; |
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90 } |
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91 |
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92 public void resetHeaders() { |
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93 // Make a copy of original headers |
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94 this.headergroup.clear(); |
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95 setHeaders(this.original.getAllHeaders()); |
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96 } |
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97 |
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98 public String getMethod() { |
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99 return this.method; |
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100 } |
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101 |
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102 public void setMethod(final String method) { |
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103 if (method == null) { |
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104 throw new IllegalArgumentException("Method name may not be null"); |
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105 } |
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106 this.method = method; |
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107 } |
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108 |
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109 public ProtocolVersion getProtocolVersion() { |
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110 if (this.version == null) { |
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111 this.version = HttpProtocolParams.getVersion(getParams()); |
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112 } |
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113 return this.version; |
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114 } |
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115 |
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116 public void setProtocolVersion(final ProtocolVersion version) { |
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117 this.version = version; |
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118 } |
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119 |
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120 |
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121 public URI getURI() { |
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122 return this.uri; |
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123 } |
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124 |
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125 public void setURI(final URI uri) { |
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126 this.uri = uri; |
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127 } |
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128 |
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129 public RequestLine getRequestLine() { |
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130 String method = getMethod(); |
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131 ProtocolVersion ver = getProtocolVersion(); |
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132 String uritext = null; |
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133 if (uri != null) { |
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134 uritext = uri.toASCIIString(); |
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135 } |
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136 if (uritext == null || uritext.length() == 0) { |
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137 uritext = "/"; |
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138 } |
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139 return new BasicRequestLine(method, uritext, ver); |
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140 } |
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141 |
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142 public void abort() throws UnsupportedOperationException { |
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143 throw new UnsupportedOperationException(); |
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144 } |
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145 |
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146 public boolean isAborted() { |
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147 return false; |
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148 } |
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149 |
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150 public HttpRequest getOriginal() { |
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151 return this.original; |
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152 } |
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153 |
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154 public boolean isRepeatable() { |
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155 return true; |
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156 } |
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157 |
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158 public int getExecCount() { |
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159 return this.execCount; |
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160 } |
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161 |
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162 public void incrementExecCount() { |
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163 this.execCount++; |
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164 } |
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165 |
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166 } |