menurepository.html

sturts_menu 的源代码 主要提过了常用的menu菜单样式

<a name="118" href="#118">118</a>         digester.addObjectCreate(<span class="string">"MenuConfig/Displayers/Displayer"</span>, <span class="string">"net.sf.navigator.displayer.MenuDisplayerMapping"</span>, <span class="string">"mapping"</span>);
<a name="119" href="#119">119</a>         digester.addSetProperties(<span class="string">"MenuConfig/Displayers/Displayer"</span>);
<a name="120" href="#120">120</a>         digester.addSetNext(<span class="string">"MenuConfig/Displayers/Displayer"</span>, <span class="string">"addMenuDisplayerMapping"</span>, <span class="string">"net.sf.navigator.displayer.MenuDisplayerMapping"</span>);
<a name="121" href="#121">121</a>         digester.addSetProperty(<span class="string">"MenuConfig/Displayers/Displayer/SetProperty"</span>, <span class="string">"property"</span>, <span class="string">"value"</span>);
<a name="122" href="#122">122</a> 
<a name="123" href="#123">123</a>         <strong>return</strong> digester;
<a name="124" href="#124">124</a>     }
<a name="125" href="#125">125</a> 
<a name="126" href="#126">126</a>     <em>/**</em>
<a name="127" href="#127">127</a> <em>     * Adds a new menu.  This is called when parsing the menu xml definition.</em>
<a name="128" href="#128">128</a> <em>     * @param menu The menu component to add.</em>
<a name="129" href="#129">129</a> <em>     */</em>
<a name="130" href="#130">130</a>     <strong>public</strong> <strong>void</strong> addMenu(<a href="../../../../net/sf/navigator/menu/MenuComponent.html">MenuComponent</a> menu) {
<a name="131" href="#131">131</a>         <strong>if</strong> (menus.containsKey(menu.getName())) {            
<a name="132" href="#132">132</a>             <strong>if</strong> (log.isDebugEnabled()) {
<a name="133" href="#133">133</a>                 log.warn(<span class="string">"Menu '"</span> + menu.getName() + <span class="string">"' already exists in repository"</span>);
<a name="134" href="#134">134</a>             }
<a name="135" href="#135">135</a>             List children = (getMenu(menu.getName())).getComponents();
<a name="136" href="#136">136</a>             <strong>if</strong> (children != <strong>null</strong> &amp;&amp; menu.getComponents() != <strong>null</strong>) {
<a name="137" href="#137">137</a>                 <strong>for</strong> (Iterator it = children.iterator(); it.hasNext();) {
<a name="138" href="#138">138</a>                     <a href="../../../../net/sf/navigator/menu/MenuComponent.html">MenuComponent</a> child = (MenuComponent) it.next();
<a name="139" href="#139">139</a>                     menu.addMenuComponent(child);
<a name="140" href="#140">140</a>                 }
<a name="141" href="#141">141</a>             }
<a name="142" href="#142">142</a>         }
<a name="143" href="#143">143</a>         menus.put(menu.getName(), menu);
<a name="144" href="#144">144</a>     }
<a name="145" href="#145">145</a> 
<a name="146" href="#146">146</a>     <em>/**</em>
<a name="147" href="#147">147</a> <em>     * Allows easy removal of a menu by its name.</em>
<a name="148" href="#148">148</a> <em>     * @param name</em>
<a name="149" href="#149">149</a> <em>     */</em>
<a name="150" href="#150">150</a>     <strong>public</strong> <strong>void</strong> removeMenu(String name) {
<a name="151" href="#151">151</a>         menus.remove(name);
<a name="152" href="#152">152</a>     }
<a name="153" href="#153">153</a> 
<a name="154" href="#154">154</a>     <em>/**</em>
<a name="155" href="#155">155</a> <em>     * Allows easy removal of all menus, suggested use for users wanting to reload menus without having to perform</em>
<a name="156" href="#156">156</a> <em>     * a complete reload of the MenuRepository</em>
<a name="157" href="#157">157</a> <em>     */</em>
<a name="158" href="#158">158</a>     <strong>public</strong> <strong>void</strong> removeAllMenus() {
<a name="159" href="#159">159</a>         menus.clear();
<a name="160" href="#160">160</a>     }
<a name="161" href="#161">161</a> 
<a name="162" href="#162">162</a>     <strong>public</strong> <strong>void</strong> addMenuDisplayerMapping(<a href="../../../../net/sf/navigator/displayer/MenuDisplayerMapping.html">MenuDisplayerMapping</a> displayerMapping) {
<a name="163" href="#163">163</a>         displayers.put(displayerMapping.getName(), displayerMapping);
<a name="164" href="#164">164</a>         <strong>if</strong> (displayerMapping.getType().equals(<span class="string">"net.sf.navigator.displayer.VelocityMenuDisplayer"</span>)) {
<a name="165" href="#165">165</a>             <strong>if</strong> (servletContext == <strong>null</strong>) {
<a name="166" href="#166">166</a>                 log.error(<span class="string">"ServletContext not set - can't initialize Velocity"</span>);
<a name="167" href="#167">167</a>             } <strong>else</strong> {
<a name="168" href="#168">168</a>                 VelocityMenuDisplayer.initialize(servletContext);
<a name="169" href="#169">169</a>             }
<a name="170" href="#170">170</a>         }
<a name="171" href="#171">171</a>     }
<a name="172" href="#172">172</a> 
<a name="173" href="#173">173</a>     <em>/**</em>
<a name="174" href="#174">174</a> <em>     * This method is so menu repositories can retrieve displayers from the</em>
<a name="175" href="#175">175</a> <em>     * default repository specified in menu-config.xml</em>
<a name="176" href="#176">176</a> <em>     * @return the displayers specified in this repository</em>
<a name="177" href="#177">177</a> <em>     */</em>
<a name="178" href="#178">178</a>     <strong>public</strong> LinkedMap getDisplayers() {
<a name="179" href="#179">179</a>         <strong>return</strong> displayers;
<a name="180" href="#180">180</a>     }
<a name="181" href="#181">181</a> 
<a name="182" href="#182">182</a>     <em>/**</em>
<a name="183" href="#183">183</a> <em>     * Allow the displayers to be set as a whole.  This should only be used</em>
<a name="184" href="#184">184</a> <em>     * when copying the displayers from the default repository to a newly</em>
<a name="185" href="#185">185</a> <em>     * created repository.</em>
<a name="186" href="#186">186</a> <em>     * @param displayers</em>
<a name="187" href="#187">187</a> <em>     */</em>
<a name="188" href="#188">188</a>     <strong>public</strong> <strong>void</strong> setDisplayers(LinkedMap displayers) {
<a name="189" href="#189">189</a>         <strong>this</strong>.displayers = displayers;
<a name="190" href="#190">190</a>     }
<a name="191" href="#191">191</a> 
<a name="192" href="#192">192</a>     <strong>public</strong> <strong>void</strong> load() throws LoadableResourceException {
<a name="193" href="#193">193</a>         <strong>if</strong> (getServletContext() == <strong>null</strong>) {
<a name="194" href="#194">194</a>             <strong>throw</strong> <strong>new</strong> <a href="../../../../net/sf/navigator/util/LoadableResourceException.html">LoadableResourceException</a>(<span class="string">"no reference to servlet context found"</span>);
<a name="195" href="#195">195</a>         }
<a name="196" href="#196">196</a> 
<a name="197" href="#197">197</a>         InputStream input = <strong>null</strong>;
<a name="198" href="#198">198</a>         Digester digester = initDigester();
<a name="199" href="#199">199</a> 
<a name="200" href="#200">200</a>         <strong>try</strong> {
<a name="201" href="#201">201</a>             input = getServletContext().getResourceAsStream(config);
<a name="202" href="#202">202</a>             digester.parse(input);
<a name="203" href="#203">203</a>         } <strong>catch</strong> (Exception e) {
<a name="204" href="#204">204</a>             e.printStackTrace();
<a name="205" href="#205">205</a>             <strong>throw</strong> <strong>new</strong> <a href="../../../../net/sf/navigator/util/LoadableResourceException.html">LoadableResourceException</a>(<span class="string">"Error parsing resource file: "</span> + config + <span class="string">" nested exception is: "</span> + e.getMessage());
<a name="206" href="#206">206</a>         } <strong>finally</strong> {
<a name="207" href="#207">207</a>             <strong>try</strong> {
<a name="208" href="#208">208</a>                 input.close();
<a name="209" href="#209">209</a>             } <strong>catch</strong> (Exception e) {
<a name="210" href="#210">210</a>             }
<a name="211" href="#211">211</a>         }
<a name="212" href="#212">212</a>     }
<a name="213" href="#213">213</a> 
<a name="214" href="#214">214</a>     <strong>public</strong> <strong>void</strong> reload() throws LoadableResourceException {
<a name="215" href="#215">215</a>         menus.clear();
<a name="216" href="#216">216</a>         displayers.clear();
<a name="217" href="#217">217</a>         load();
<a name="218" href="#218">218</a>     }
<a name="219" href="#219">219</a> 
<a name="220" href="#220">220</a>     <strong>public</strong> <strong>void</strong> setLoadParam(String loadParam) {
<a name="221" href="#221">221</a>         config = loadParam;
<a name="222" href="#222">222</a>     }
<a name="223" href="#223">223</a> 
<a name="224" href="#224">224</a>     <strong>public</strong> String getLoadParam() {
<a name="225" href="#225">225</a>         <strong>return</strong> config;
<a name="226" href="#226">226</a>     }
<a name="227" href="#227">227</a> 
<a name="228" href="#228">228</a>     <strong>public</strong> <strong>void</strong> setName(String name) {
<a name="229" href="#229">229</a>         <strong>this</strong>.name = name;
<a name="230" href="#230">230</a>     }
<a name="231" href="#231">231</a> 
<a name="232" href="#232">232</a>     <strong>public</strong> String getName() {
<a name="233" href="#233">233</a>         <strong>return</strong> name;
<a name="234" href="#234">234</a>     }
<a name="235" href="#235">235</a> 
<a name="236" href="#236">236</a>     <strong>public</strong> ServletContext getServletContext() {
<a name="237" href="#237">237</a>         <strong>return</strong> servletContext;
<a name="238" href="#238">238</a>     }
<a name="239" href="#239">239</a> 
<a name="240" href="#240">240</a>     <strong>public</strong> <strong>void</strong> setServletContext(ServletContext context) {
<a name="241" href="#241">241</a>         <strong>this</strong>.servletContext = context;
<a name="242" href="#242">242</a>     }
<a name="243" href="#243">243</a>