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1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package com.sun.xml.internal.ws.transport.http; |
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27 |
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28 import com.oracle.webservices.internal.api.message.BasePropertySet; |
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29 import com.oracle.webservices.internal.api.message.PropertySet; |
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30 import com.sun.istack.internal.NotNull; |
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31 import com.sun.istack.internal.Nullable; |
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32 import com.sun.xml.internal.ws.api.message.Packet; |
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33 import com.sun.xml.internal.ws.api.server.WebServiceContextDelegate; |
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34 |
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35 import javax.xml.ws.WebServiceContext; |
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36 import java.io.IOException; |
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37 import java.io.InputStream; |
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38 import java.io.OutputStream; |
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39 import java.net.HttpURLConnection; |
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40 import java.security.Principal; |
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41 import java.util.Collections; |
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42 import java.util.List; |
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43 import java.util.Map; |
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44 import java.util.Set; |
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45 |
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46 |
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47 /** |
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48 * The view of an HTTP exchange from the point of view of JAX-WS. |
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49 * |
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50 * <p> |
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51 * Different HTTP server layer uses different implementations of this class |
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52 * so that JAX-WS can be shielded from individuality of such layers. |
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53 * This is an interface implemented as an abstract class, so that |
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54 * future versions of the JAX-WS RI can add new methods. |
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55 * |
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56 * <p> |
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57 * This class extends {@link PropertySet} so that a transport can |
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58 * expose its properties to the application and pipes. (This object |
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59 * will be added to {@link Packet#addSatellite(PropertySet)}.) |
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60 * |
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61 * @author Jitendra Kotamraju |
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62 */ |
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63 public abstract class WSHTTPConnection extends BasePropertySet { |
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64 |
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65 public static final int OK=200; |
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66 public static final int ONEWAY=202; |
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67 public static final int UNSUPPORTED_MEDIA=415; |
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68 public static final int MALFORMED_XML=400; |
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69 public static final int INTERNAL_ERR=500; |
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70 |
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71 /** |
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72 * Overwrites all the HTTP response headers written thus far. |
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73 * |
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74 * <p> |
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75 * The implementation should copy the contents of the {@link Map}, |
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76 * rather than retaining a reference. The {@link Map} passed as a |
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77 * parameter may change after this method is invoked. |
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78 * |
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79 * <p> |
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80 * This method may be called repeatedly, although in normal use |
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81 * case that's rare (so the implementation is encourage to take |
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82 * advantage of this usage pattern to improve performance, if possible.) |
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83 * |
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84 * <p> |
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85 * Initially, no header is set. |
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86 * |
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87 * <p> |
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88 * This parameter is usually exposed to {@link WebServiceContext} |
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89 * as {@link Packet#OUTBOUND_TRANSPORT_HEADERS}, and thus it |
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90 * should ignore <tt>Content-Type</tt> and <tt>Content-Length</tt> headers. |
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91 * |
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92 * @param headers |
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93 * See {@link HttpURLConnection#getHeaderFields()} for the format. |
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94 * This parameter may not be null, but since the user application |
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95 * code may invoke this method, a graceful error checking with |
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96 * an helpful error message should be provided if it's actually null. |
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97 * @see #setContentTypeResponseHeader(String) |
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98 */ |
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99 public abstract void setResponseHeaders(@NotNull Map<String,List<String>> headers); |
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100 |
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101 public void setResponseHeader(String key, String value) { |
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102 setResponseHeader(key, Collections.singletonList(value)); |
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103 } |
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104 |
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105 public abstract void setResponseHeader(String key, List<String> value); |
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106 |
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107 /** |
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108 * Sets the <tt>"Content-Type"</tt> header. |
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109 * |
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110 * <p> |
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111 * If the Content-Type header has already been set, this method will overwrite |
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112 * the previously set value. If not, this method adds it. |
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113 * |
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114 * <p> |
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115 * Note that this method and {@link #setResponseHeaders(java.util.Map)} |
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116 * may be invoked in any arbitrary order. |
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117 * |
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118 * @param value |
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119 * strings like <tt>"application/xml; charset=UTF-8"</tt> or |
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120 * <tt>"image/jpeg"</tt>. |
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121 */ |
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122 public abstract void setContentTypeResponseHeader(@NotNull String value); |
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123 |
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124 /** |
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125 * Sets the HTTP response code like {@link #OK}. |
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126 * |
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127 * <p> |
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128 * While JAX-WS processes a {@link WSHTTPConnection}, it |
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129 * will at least call this method once to set a valid HTTP response code. |
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130 * Note that this method may be invoked multiple times (from user code), |
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131 * so do not consider the value to be final until {@link #getOutput()} |
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132 * is invoked. |
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133 */ |
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134 |
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135 public abstract void setStatus(int status); |
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136 |
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137 /** |
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138 * Gets the last value set by {@link #setStatus(int)}. |
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139 * |
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140 * @return |
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141 * if {@link #setStatus(int)} has not been invoked yet, |
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142 * return 0. |
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143 */ |
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144 // I know this is ugly method! |
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145 public abstract int getStatus(); |
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146 |
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147 /** |
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148 * Transport's underlying input stream. |
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149 * |
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150 * <p> |
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151 * This method will be invoked at most once by the JAX-WS RI to |
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152 * read the request body. If there's no request body, this method |
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153 * should return an empty {@link InputStream}. |
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154 * |
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155 * @return |
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156 * the stream from which the request body will be read. |
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157 */ |
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158 public abstract @NotNull InputStream getInput() throws IOException; |
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159 |
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160 /** |
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161 * Transport's underlying output stream |
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162 * |
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163 * <p> |
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164 * This method will be invoked exactly once by the JAX-WS RI |
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165 * to start writing the response body (unless the processing aborts abnormally.) |
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166 * Even if there's no response body to write, this method will |
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167 * still be invoked only to be closed immediately. |
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168 * |
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169 * <p> |
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170 * Once this method is called, the status code and response |
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171 * headers will never change (IOW {@link #setStatus(int)}, |
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172 * {@link #setResponseHeaders}, and {@link #setContentTypeResponseHeader(String)} |
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173 * will never be invoked. |
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174 */ |
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175 public abstract @NotNull OutputStream getOutput() throws IOException; |
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176 |
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177 /** |
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178 * Returns the {@link WebServiceContextDelegate} for this connection. |
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179 */ |
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180 public abstract @NotNull WebServiceContextDelegate getWebServiceContextDelegate(); |
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181 |
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182 /** |
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183 * HTTP request method, such as "GET" or "POST". |
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184 */ |
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185 public abstract @NotNull String getRequestMethod(); |
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186 |
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187 /** |
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188 * HTTP request headers. |
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189 * |
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190 * @deprecated |
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191 * This is a potentially expensive operation. |
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192 * Programs that want to access HTTP headers should consider using |
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193 * other methods such as {@link #getRequestHeader(String)}. |
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194 * |
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195 * @return |
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196 * can be empty but never null. |
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197 */ |
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198 public abstract @NotNull Map<String,List<String>> getRequestHeaders(); |
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199 |
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200 /** |
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201 * HTTP request header names. |
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202 * |
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203 * @deprecated |
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204 * This is a potentially expensive operation. |
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205 * Programs that want to access HTTP headers should consider using |
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206 * other methods such as {@link #getRequestHeader(String)}. |
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207 * |
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208 * @return |
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209 * can be empty but never null. |
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210 */ |
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211 public abstract @NotNull Set<String> getRequestHeaderNames(); |
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212 |
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213 /** |
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214 * @return |
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215 * HTTP response headers. |
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216 */ |
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217 public abstract Map<String,List<String>> getResponseHeaders(); |
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218 |
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219 /** |
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220 * Gets an HTTP request header. |
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221 * |
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222 * <p> |
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223 * if multiple headers are present, this method returns one of them. |
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224 * (The implementation is free to choose which one it returns.) |
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225 * |
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226 * @return |
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227 * null if no header exists. |
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228 */ |
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229 public abstract @Nullable String getRequestHeader(@NotNull String headerName); |
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230 |
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231 /** |
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232 * Gets an HTTP request header. |
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233 * |
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234 * @return |
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235 * null if no header exists. |
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236 */ |
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237 public abstract @Nullable List<String> getRequestHeaderValues(@NotNull String headerName); |
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238 |
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239 /** |
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240 * HTTP Query string, such as "foo=bar", or null if none exists. |
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241 */ |
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242 public abstract @Nullable String getQueryString(); |
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243 |
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244 /** |
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245 * Extra portion of the request URI after the end of the expected address of the service |
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246 * but before the query string |
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247 */ |
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248 public abstract @Nullable String getPathInfo(); |
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249 |
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250 /** |
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251 * Requested path. A string like "/foo/bar/baz" |
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252 */ |
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253 public abstract @NotNull String getRequestURI(); |
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254 |
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255 /** |
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256 * Requested scheme, e.g. "http" or "https" |
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257 */ |
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258 public abstract @NotNull String getRequestScheme(); |
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259 |
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260 /** |
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261 * Server name |
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262 */ |
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263 public abstract @NotNull String getServerName(); |
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264 |
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265 /** |
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266 * Server port |
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267 */ |
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268 public abstract int getServerPort(); |
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269 |
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270 /** |
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271 * Portion of the request URI that groups related service addresses. The value, if non-empty, will |
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272 * always begin with '/', but will never end with '/'. Environments that do not support |
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273 * context paths must return an empty string. |
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274 */ |
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275 public @NotNull String getContextPath() { |
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276 return ""; |
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277 } |
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278 |
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279 /** |
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280 * Environment specific context , if available |
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281 */ |
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282 public Object getContext() { |
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283 return null; |
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284 } |
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285 |
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286 /** |
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287 * Gets the absolute URL up to the context path. |
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288 * @return |
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289 * String like "http://myhost/myapp" |
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290 * @since 2.1.2 |
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291 */ |
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292 public @NotNull String getBaseAddress() { |
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293 throw new UnsupportedOperationException(); |
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294 } |
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295 |
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296 /** |
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297 * Whether connection is HTTPS or not |
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298 * |
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299 * @return if the received request is on HTTPS, return true |
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300 * else false |
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301 */ |
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302 public abstract boolean isSecure(); |
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303 |
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304 /** |
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305 * User principal associated with the request |
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306 * |
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307 * @return user principal |
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308 */ |
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309 public Principal getUserPrincipal() { |
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310 return null; |
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311 } |
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312 |
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313 /** |
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314 * Whether user associated with the request holds the given role |
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315 * |
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316 * @param role Role to check |
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317 * @return if the caller holds the role |
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318 */ |
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319 public boolean isUserInRole(String role) { |
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320 return false; |
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321 } |
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322 |
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323 /** |
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324 * Gets request metadata attribute |
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325 * @param key Request metadata key |
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326 * @return Value of metadata attribute or null, if no value present |
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327 */ |
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328 public Object getRequestAttribute(String key) { |
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329 return null; |
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330 } |
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331 |
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332 private volatile boolean closed; |
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333 |
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334 /** |
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335 * Close the connection |
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336 */ |
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337 public void close() { |
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338 this.closed = true; |
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339 } |
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340 |
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341 /** |
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342 * Retuns whether connection is closed or not. |
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343 */ |
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344 public boolean isClosed() { |
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345 return closed; |
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346 } |
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347 |
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348 /** |
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349 * Subclasses are expected to override |
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350 * |
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351 * @return a {@link String} containing the protocol name and version number |
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352 */ |
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353 public String getProtocol() { |
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354 return "HTTP/1.1"; |
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355 } |
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356 |
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357 /** |
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358 * Subclasses are expected to override |
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359 * |
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360 * @since JAX-WS RI 2.2.2 |
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361 * @return value of given cookie |
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362 */ |
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363 public String getCookie(String name) { |
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364 return null; |
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365 } |
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366 |
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367 /** |
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368 * Subclasses are expected to override |
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369 * |
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370 * |
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371 * @since JAX-WS RI 2.2.2 |
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372 */ |
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373 public void setCookie(String name, String value) { |
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374 } |
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375 |
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376 /** |
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377 * Subclasses are expected to override |
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378 */ |
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379 public void setContentLengthResponseHeader(int value) { |
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380 } |
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381 |
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382 } |