commandlineparser.html

用JAVA编写的,在做实验的时候留下来的,本来想删的,但是传上来,大家分享吧

<a name="114" href="#114">114</a>     <em>/**<em>*</em></em>
<a name="115" href="#115">115</a> <em>     * Print usage then exit.</em>
<a name="116" href="#116">116</a> <em>     *</em>
<a name="117" href="#117">117</a> <em>     * @param exitCode</em>
<a name="118" href="#118">118</a> <em>     */</em>
<a name="119" href="#119">119</a>     <strong>public</strong> <strong>void</strong> usage(<strong>int</strong> exitCode) {
<a name="120" href="#120">120</a>         usage(<strong>null</strong>, exitCode);
<a name="121" href="#121">121</a>     }
<a name="122" href="#122">122</a> 
<a name="123" href="#123">123</a>     <em>/**<em>*</em></em>
<a name="124" href="#124">124</a> <em>     * Print message then usage then exit.</em>
<a name="125" href="#125">125</a> <em>     *</em>
<a name="126" href="#126">126</a> <em>     * The JVM exits inside in this method.</em>
<a name="127" href="#127">127</a> <em>     *</em>
<a name="128" href="#128">128</a> <em>     * @param message Message to print before we do usage.</em>
<a name="129" href="#129">129</a> <em>     * @param exitCode Exit code to use in call to System.exit.</em>
<a name="130" href="#130">130</a> <em>     */</em>
<a name="131" href="#131">131</a>     <strong>public</strong> <strong>void</strong> usage(String message, <strong>int</strong> exitCode) {
<a name="132" href="#132">132</a>         outputAndExit(message, <strong>true</strong>, exitCode);
<a name="133" href="#133">133</a>     }
<a name="134" href="#134">134</a> 
<a name="135" href="#135">135</a>     <em>/**<em>*</em></em>
<a name="136" href="#136">136</a> <em>     * Print message and then exit.</em>
<a name="137" href="#137">137</a> <em>     *</em>
<a name="138" href="#138">138</a> <em>     * The JVM exits inside in this method.</em>
<a name="139" href="#139">139</a> <em>     *</em>
<a name="140" href="#140">140</a> <em>     * @param message Message to print before we do usage.</em>
<a name="141" href="#141">141</a> <em>     * @param exitCode Exit code to use in call to System.exit.</em>
<a name="142" href="#142">142</a> <em>     */</em>
<a name="143" href="#143">143</a>     <strong>public</strong> <strong>void</strong> message(String message, <strong>int</strong> exitCode) {
<a name="144" href="#144">144</a>         outputAndExit(message, false, exitCode);
<a name="145" href="#145">145</a>     }
<a name="146" href="#146">146</a> 
<a name="147" href="#147">147</a>     <em>/**<em>*</em></em>
<a name="148" href="#148">148</a> <em>     * Print out optional message an optional usage and then exit.</em>
<a name="149" href="#149">149</a> <em>     *</em>
<a name="150" href="#150">150</a> <em>     * Private utility method.  JVM exits from inside in this method.</em>
<a name="151" href="#151">151</a> <em>     *</em>
<a name="152" href="#152">152</a> <em>     * @param message Message to print before we do usage.</em>
<a name="153" href="#153">153</a> <em>     * @param doUsage True if we are to print out the usage message.</em>
<a name="154" href="#154">154</a> <em>     * @param exitCode Exit code to use in call to System.exit.</em>
<a name="155" href="#155">155</a> <em>     */</em>
<a name="156" href="#156">156</a>     <strong>private</strong> <strong>void</strong> outputAndExit(String message, <strong>boolean</strong> doUsage, <strong>int</strong> exitCode) {
<a name="157" href="#157">157</a>         <strong>if</strong> (message !=  <strong>null</strong>) {
<a name="158" href="#158">158</a>             <strong>this</strong>.out.println(message);
<a name="159" href="#159">159</a>         }
<a name="160" href="#160">160</a> 
<a name="161" href="#161">161</a>         <strong>if</strong> (doUsage) {
<a name="162" href="#162">162</a>             HeritrixHelpFormatter formatter =
<a name="163" href="#163">163</a>                 <strong>new</strong> HeritrixHelpFormatter();
<a name="164" href="#164">164</a>             formatter.printHelp(<strong>this</strong>.out, 80, NAME, <span class="string">"Options:"</span>, <strong>this</strong>.options,
<a name="165" href="#165">165</a>                 1, 2, <span class="string">"Arguments:"</span>, false);
<a name="166" href="#166">166</a>             <strong>this</strong>.out.println(<span class="string">" ORDER.XML       Crawl order to run.\n"</span>);
<a name="167" href="#167">167</a>         }
<a name="168" href="#168">168</a> 
<a name="169" href="#169">169</a>         <em class="comment">// Close printwriter so stream gets flushed.</em>
<a name="170" href="#170">170</a>         <strong>this</strong>.out.close();
<a name="171" href="#171">171</a>         System.exit(exitCode);
<a name="172" href="#172">172</a>     }
<a name="173" href="#173">173</a> 
<a name="174" href="#174">174</a>     <em>/**<em>*</em></em>
<a name="175" href="#175">175</a> <em>     * @return Options passed on the command line.</em>
<a name="176" href="#176">176</a> <em>     */</em>
<a name="177" href="#177">177</a>     <strong>public</strong> Option [] getCommandLineOptions() {
<a name="178" href="#178">178</a>         <strong>return</strong> <strong>this</strong>.commandLine.getOptions();
<a name="179" href="#179">179</a>     }
<a name="180" href="#180">180</a> 
<a name="181" href="#181">181</a>     <em>/**<em>*</em></em>
<a name="182" href="#182">182</a> <em>     * @return Arguments passed on the command line.</em>
<a name="183" href="#183">183</a> <em>     */</em>
<a name="184" href="#184">184</a>     <strong>public</strong> List getCommandLineArguments() {
<a name="185" href="#185">185</a>         <strong>return</strong> <strong>this</strong>.commandLine.getArgList();
<a name="186" href="#186">186</a>     }
<a name="187" href="#187">187</a> 
<a name="188" href="#188">188</a>     <em>/**<em>*</em></em>
<a name="189" href="#189">189</a> <em>     * @return Command line.</em>
<a name="190" href="#190">190</a> <em>     */</em>
<a name="191" href="#191">191</a>     <strong>public</strong> CommandLine getCommandLine() {
<a name="192" href="#192">192</a>         <strong>return</strong> <strong>this</strong>.commandLine;
<a name="193" href="#193">193</a>     }
<a name="194" href="#194">194</a> 
<a name="195" href="#195">195</a>     <em>/**<em>*</em></em>
<a name="196" href="#196">196</a> <em>     * @return Returns the version.</em>
<a name="197" href="#197">197</a> <em>     */</em>
<a name="198" href="#198">198</a>     <strong>public</strong> String getVersion() {
<a name="199" href="#199">199</a>         <strong>return</strong> <strong>this</strong>.version;
<a name="200" href="#200">200</a>     }
<a name="201" href="#201">201</a>     
<a name="202" href="#202">202</a>     <em>/**<em>*</em></em>
<a name="203" href="#203">203</a> <em>     * Override so can customize usage output.</em>
<a name="204" href="#204">204</a> <em>     *</em>
<a name="205" href="#205">205</a> <em>     * @author stack</em>
<a name="206" href="#206">206</a> <em>     * @version $Id: CommandLineParser.java,v 1.13 2006/08/29 00:47:56 stack-sf Exp $</em>
<a name="207" href="#207">207</a> <em>     */</em>
<a name="208" href="#208">208</a>     <strong>public</strong> <strong>class</strong> HeritrixHelpFormatter
<a name="209" href="#209">209</a>     <strong>extends</strong> HelpFormatter {
<a name="210" href="#210">210</a>         <strong>public</strong> HeritrixHelpFormatter() {
<a name="211" href="#211">211</a>             <strong>super</strong>();
<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> pr<strong>int</strong>Usage(Pr<strong>int</strong>Writer pw, <strong>int</strong> width,
<a name="215" href="#215">215</a>                 String cmdLineSyntax) {
<a name="216" href="#216">216</a>             out.println(USAGE + NAME + <span class="string">" --help"</span>);
<a name="217" href="#217">217</a>             out.println(USAGE + NAME + <span class="string">" --nowui ORDER.XML"</span>);
<a name="218" href="#218">218</a>             out.println(USAGE + NAME + <span class="string">" [--port=#]"</span> +
<a name="219" href="#219">219</a>                 <span class="string">" [--run] [--bind=IP,IP...] "</span> +
<a name="220" href="#220">220</a>                 <span class="string">"--admin=LOGIN:PASSWORD &#47;&#47;\n\t[ORDER.XML]"</span>);
<a name="221" href="#221">221</a>             out.println(USAGE + NAME + <span class="string">" [--port=#] --selftest[=TESTNAME]"</span>);
<a name="222" href="#222">222</a>             out.println(<span class="string">"Version: "</span> + getVersion());
<a name="223" href="#223">223</a>         }
<a name="224" href="#224">224</a> 
<a name="225" href="#225">225</a>         <strong>public</strong> <strong>void</strong> pr<strong>int</strong>Usage(Pr<strong>int</strong>Writer pw, <strong>int</strong> width,
<a name="226" href="#226">226</a>             String app, Options options) {
<a name="227" href="#227">227</a>             <strong>this</strong>.printUsage(pw, width, app);
<a name="228" href="#228">228</a>         }
<a name="229" href="#229">229</a>     }
<a name="230" href="#230">230</a> }
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