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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.util;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.io.IOException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.util.ArrayList;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.Collections;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.Comparator;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.HashMap;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.List;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.Objects;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.HBaseConfiguration;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.util.Tool;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.util.ToolRunner;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.slf4j.Logger;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">034</span><span id="line-34"></span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hbase.thirdparty.org.apache.commons.cli.BasicParser;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLineParser;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hbase.thirdparty.org.apache.commons.cli.DefaultParser;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hbase.thirdparty.org.apache.commons.cli.HelpFormatter;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hbase.thirdparty.org.apache.commons.cli.MissingOptionException;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hbase.thirdparty.org.apache.commons.cli.Option;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.hbase.thirdparty.org.apache.commons.cli.Options;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.apache.hbase.thirdparty.org.apache.commons.cli.ParseException;</span> |
| <span class="source-line-no">044</span><span id="line-44"></span> |
| <span class="source-line-no">045</span><span id="line-45">/**</span> |
| <span class="source-line-no">046</span><span id="line-46"> * Common base class used for HBase command-line tools. Simplifies workflow and command-line</span> |
| <span class="source-line-no">047</span><span id="line-47"> * argument parsing.</span> |
| <span class="source-line-no">048</span><span id="line-48"> */</span> |
| <span class="source-line-no">049</span><span id="line-49">@InterfaceAudience.Private</span> |
| <span class="source-line-no">050</span><span id="line-50">public abstract class AbstractHBaseTool implements Tool {</span> |
| <span class="source-line-no">051</span><span id="line-51"> public static final int EXIT_SUCCESS = 0;</span> |
| <span class="source-line-no">052</span><span id="line-52"> public static final int EXIT_FAILURE = 1;</span> |
| <span class="source-line-no">053</span><span id="line-53"></span> |
| <span class="source-line-no">054</span><span id="line-54"> public static final String SHORT_HELP_OPTION = "h";</span> |
| <span class="source-line-no">055</span><span id="line-55"> public static final String LONG_HELP_OPTION = "help";</span> |
| <span class="source-line-no">056</span><span id="line-56"></span> |
| <span class="source-line-no">057</span><span id="line-57"> private static final Option HELP_OPTION =</span> |
| <span class="source-line-no">058</span><span id="line-58"> new Option("h", "help", false, "Prints help for this tool.");</span> |
| <span class="source-line-no">059</span><span id="line-59"></span> |
| <span class="source-line-no">060</span><span id="line-60"> private static final Logger LOG = LoggerFactory.getLogger(AbstractHBaseTool.class);</span> |
| <span class="source-line-no">061</span><span id="line-61"></span> |
| <span class="source-line-no">062</span><span id="line-62"> protected final Options options = new Options();</span> |
| <span class="source-line-no">063</span><span id="line-63"></span> |
| <span class="source-line-no">064</span><span id="line-64"> protected Configuration conf = null;</span> |
| <span class="source-line-no">065</span><span id="line-65"></span> |
| <span class="source-line-no">066</span><span id="line-66"> protected String[] cmdLineArgs = null;</span> |
| <span class="source-line-no">067</span><span id="line-67"></span> |
| <span class="source-line-no">068</span><span id="line-68"> // To print options in order they were added in help text.</span> |
| <span class="source-line-no">069</span><span id="line-69"> private HashMap<Option, Integer> optionsOrder = new HashMap<>();</span> |
| <span class="source-line-no">070</span><span id="line-70"> private int optionsCount = 0;</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72"> public class OptionsOrderComparator implements Comparator<Option> {</span> |
| <span class="source-line-no">073</span><span id="line-73"> @Override</span> |
| <span class="source-line-no">074</span><span id="line-74"> public int compare(Option o1, Option o2) {</span> |
| <span class="source-line-no">075</span><span id="line-75"> return optionsOrder.get(o1) - optionsOrder.get(o2);</span> |
| <span class="source-line-no">076</span><span id="line-76"> }</span> |
| <span class="source-line-no">077</span><span id="line-77"> }</span> |
| <span class="source-line-no">078</span><span id="line-78"></span> |
| <span class="source-line-no">079</span><span id="line-79"> /**</span> |
| <span class="source-line-no">080</span><span id="line-80"> * Override this to add command-line options using {@link #addOptWithArg} and similar methods.</span> |
| <span class="source-line-no">081</span><span id="line-81"> */</span> |
| <span class="source-line-no">082</span><span id="line-82"> protected abstract void addOptions();</span> |
| <span class="source-line-no">083</span><span id="line-83"></span> |
| <span class="source-line-no">084</span><span id="line-84"> /**</span> |
| <span class="source-line-no">085</span><span id="line-85"> * This method is called to process the options after they have been parsed.</span> |
| <span class="source-line-no">086</span><span id="line-86"> */</span> |
| <span class="source-line-no">087</span><span id="line-87"> protected abstract void processOptions(CommandLine cmd);</span> |
| <span class="source-line-no">088</span><span id="line-88"></span> |
| <span class="source-line-no">089</span><span id="line-89"> /** The "main function" of the tool */</span> |
| <span class="source-line-no">090</span><span id="line-90"> protected abstract int doWork() throws Exception;</span> |
| <span class="source-line-no">091</span><span id="line-91"></span> |
| <span class="source-line-no">092</span><span id="line-92"> /**</span> |
| <span class="source-line-no">093</span><span id="line-93"> * For backward compatibility. DO NOT use it for new tools. We have options in existing tools</span> |
| <span class="source-line-no">094</span><span id="line-94"> * which can't be ported to Apache CLI's {@link Option}. (because they don't pass validation, for</span> |
| <span class="source-line-no">095</span><span id="line-95"> * e.g. "-copy-to". "-" means short name which doesn't allow '-' in name). This function is to</span> |
| <span class="source-line-no">096</span><span id="line-96"> * allow tools to have, for time being, parameters which can't be parsed using {@link Option}.</span> |
| <span class="source-line-no">097</span><span id="line-97"> * Overrides should consume all valid legacy arguments. If the param 'args' is not empty on</span> |
| <span class="source-line-no">098</span><span id="line-98"> * return, it means there were invalid options, in which case we'll exit from the tool. Note that</span> |
| <span class="source-line-no">099</span><span id="line-99"> * it's called before {@link #processOptions(CommandLine)}, which means new options' values will</span> |
| <span class="source-line-no">100</span><span id="line-100"> * override old ones'.</span> |
| <span class="source-line-no">101</span><span id="line-101"> */</span> |
| <span class="source-line-no">102</span><span id="line-102"> protected void processOldArgs(List<String> args) {</span> |
| <span class="source-line-no">103</span><span id="line-103"> }</span> |
| <span class="source-line-no">104</span><span id="line-104"></span> |
| <span class="source-line-no">105</span><span id="line-105"> @Override</span> |
| <span class="source-line-no">106</span><span id="line-106"> public Configuration getConf() {</span> |
| <span class="source-line-no">107</span><span id="line-107"> return conf;</span> |
| <span class="source-line-no">108</span><span id="line-108"> }</span> |
| <span class="source-line-no">109</span><span id="line-109"></span> |
| <span class="source-line-no">110</span><span id="line-110"> @Override</span> |
| <span class="source-line-no">111</span><span id="line-111"> public void setConf(Configuration conf) {</span> |
| <span class="source-line-no">112</span><span id="line-112"> this.conf = conf;</span> |
| <span class="source-line-no">113</span><span id="line-113"> }</span> |
| <span class="source-line-no">114</span><span id="line-114"></span> |
| <span class="source-line-no">115</span><span id="line-115"> @Override</span> |
| <span class="source-line-no">116</span><span id="line-116"> public int run(String[] args) throws IOException {</span> |
| <span class="source-line-no">117</span><span id="line-117"> cmdLineArgs = args;</span> |
| <span class="source-line-no">118</span><span id="line-118"></span> |
| <span class="source-line-no">119</span><span id="line-119"> Objects.requireNonNull(conf, "Tool configuration is not initialized");</span> |
| <span class="source-line-no">120</span><span id="line-120"></span> |
| <span class="source-line-no">121</span><span id="line-121"> CommandLine cmd;</span> |
| <span class="source-line-no">122</span><span id="line-122"> List<String> argsList = new ArrayList<>(args.length);</span> |
| <span class="source-line-no">123</span><span id="line-123"> Collections.addAll(argsList, args);</span> |
| <span class="source-line-no">124</span><span id="line-124"> // For backward compatibility of args which can't be parsed as Option. See javadoc for</span> |
| <span class="source-line-no">125</span><span id="line-125"> // processOldArgs(..)</span> |
| <span class="source-line-no">126</span><span id="line-126"> processOldArgs(argsList);</span> |
| <span class="source-line-no">127</span><span id="line-127"> try {</span> |
| <span class="source-line-no">128</span><span id="line-128"> addOptions();</span> |
| <span class="source-line-no">129</span><span id="line-129"> if (isHelpCommand(args)) {</span> |
| <span class="source-line-no">130</span><span id="line-130"> printUsage();</span> |
| <span class="source-line-no">131</span><span id="line-131"> return EXIT_SUCCESS;</span> |
| <span class="source-line-no">132</span><span id="line-132"> }</span> |
| <span class="source-line-no">133</span><span id="line-133"> String[] remainingArgs = new String[argsList.size()];</span> |
| <span class="source-line-no">134</span><span id="line-134"> argsList.toArray(remainingArgs);</span> |
| <span class="source-line-no">135</span><span id="line-135"> cmd = newParser().parse(options, remainingArgs);</span> |
| <span class="source-line-no">136</span><span id="line-136"> } catch (MissingOptionException e) {</span> |
| <span class="source-line-no">137</span><span id="line-137"> LOG.error(e.getMessage());</span> |
| <span class="source-line-no">138</span><span id="line-138"> LOG.error("Use -h or --help for usage instructions.");</span> |
| <span class="source-line-no">139</span><span id="line-139"> return EXIT_FAILURE;</span> |
| <span class="source-line-no">140</span><span id="line-140"> } catch (ParseException e) {</span> |
| <span class="source-line-no">141</span><span id="line-141"> LOG.error("Error when parsing command-line arguments", e);</span> |
| <span class="source-line-no">142</span><span id="line-142"> LOG.error("Use -h or --help for usage instructions.");</span> |
| <span class="source-line-no">143</span><span id="line-143"> return EXIT_FAILURE;</span> |
| <span class="source-line-no">144</span><span id="line-144"> }</span> |
| <span class="source-line-no">145</span><span id="line-145"></span> |
| <span class="source-line-no">146</span><span id="line-146"> processOptions(cmd);</span> |
| <span class="source-line-no">147</span><span id="line-147"></span> |
| <span class="source-line-no">148</span><span id="line-148"> int ret;</span> |
| <span class="source-line-no">149</span><span id="line-149"> try {</span> |
| <span class="source-line-no">150</span><span id="line-150"> ret = doWork();</span> |
| <span class="source-line-no">151</span><span id="line-151"> } catch (Exception e) {</span> |
| <span class="source-line-no">152</span><span id="line-152"> LOG.error("Error running command-line tool", e);</span> |
| <span class="source-line-no">153</span><span id="line-153"> return EXIT_FAILURE;</span> |
| <span class="source-line-no">154</span><span id="line-154"> }</span> |
| <span class="source-line-no">155</span><span id="line-155"> return ret;</span> |
| <span class="source-line-no">156</span><span id="line-156"> }</span> |
| <span class="source-line-no">157</span><span id="line-157"></span> |
| <span class="source-line-no">158</span><span id="line-158"> /**</span> |
| <span class="source-line-no">159</span><span id="line-159"> * Create the parser to use for parsing and validating the command line. Since commons-cli lacks</span> |
| <span class="source-line-no">160</span><span id="line-160"> * the capability to validate arbitrary combination of options, it may be helpful to bake custom</span> |
| <span class="source-line-no">161</span><span id="line-161"> * logic into a specialized parser implementation. See LoadTestTool for examples.</span> |
| <span class="source-line-no">162</span><span id="line-162"> * @return a new parser specific to the current tool</span> |
| <span class="source-line-no">163</span><span id="line-163"> */</span> |
| <span class="source-line-no">164</span><span id="line-164"> protected CommandLineParser newParser() {</span> |
| <span class="source-line-no">165</span><span id="line-165"> return new DefaultParser();</span> |
| <span class="source-line-no">166</span><span id="line-166"> }</span> |
| <span class="source-line-no">167</span><span id="line-167"></span> |
| <span class="source-line-no">168</span><span id="line-168"> private boolean isHelpCommand(String[] args) throws ParseException {</span> |
| <span class="source-line-no">169</span><span id="line-169"> Options helpOption = new Options().addOption(HELP_OPTION);</span> |
| <span class="source-line-no">170</span><span id="line-170"> // this parses the command line but doesn't throw an exception on unknown options</span> |
| <span class="source-line-no">171</span><span id="line-171"> CommandLine cl = new DefaultParser().parse(helpOption, args, true);</span> |
| <span class="source-line-no">172</span><span id="line-172"> return cl.getOptions().length != 0;</span> |
| <span class="source-line-no">173</span><span id="line-173"> }</span> |
| <span class="source-line-no">174</span><span id="line-174"></span> |
| <span class="source-line-no">175</span><span id="line-175"> protected CommandLine parseArgs(String[] args) throws ParseException {</span> |
| <span class="source-line-no">176</span><span id="line-176"> options.addOption(SHORT_HELP_OPTION, LONG_HELP_OPTION, false, "Show usage");</span> |
| <span class="source-line-no">177</span><span id="line-177"> addOptions();</span> |
| <span class="source-line-no">178</span><span id="line-178"> CommandLineParser parser = new BasicParser();</span> |
| <span class="source-line-no">179</span><span id="line-179"> return parser.parse(options, args);</span> |
| <span class="source-line-no">180</span><span id="line-180"> }</span> |
| <span class="source-line-no">181</span><span id="line-181"></span> |
| <span class="source-line-no">182</span><span id="line-182"> protected void printUsage() {</span> |
| <span class="source-line-no">183</span><span id="line-183"> printUsage("hbase " + getClass().getName() + " <options>", "Options:", "");</span> |
| <span class="source-line-no">184</span><span id="line-184"> }</span> |
| <span class="source-line-no">185</span><span id="line-185"></span> |
| <span class="source-line-no">186</span><span id="line-186"> protected void printUsage(final String usageStr, final String usageHeader,</span> |
| <span class="source-line-no">187</span><span id="line-187"> final String usageFooter) {</span> |
| <span class="source-line-no">188</span><span id="line-188"> HelpFormatter helpFormatter = new HelpFormatter();</span> |
| <span class="source-line-no">189</span><span id="line-189"> helpFormatter.setWidth(120);</span> |
| <span class="source-line-no">190</span><span id="line-190"> helpFormatter.setOptionComparator(new OptionsOrderComparator());</span> |
| <span class="source-line-no">191</span><span id="line-191"> helpFormatter.printHelp(usageStr, usageHeader, options, usageFooter);</span> |
| <span class="source-line-no">192</span><span id="line-192"> }</span> |
| <span class="source-line-no">193</span><span id="line-193"></span> |
| <span class="source-line-no">194</span><span id="line-194"> protected void addOption(Option option) {</span> |
| <span class="source-line-no">195</span><span id="line-195"> options.addOption(option);</span> |
| <span class="source-line-no">196</span><span id="line-196"> optionsOrder.put(option, optionsCount++);</span> |
| <span class="source-line-no">197</span><span id="line-197"> }</span> |
| <span class="source-line-no">198</span><span id="line-198"></span> |
| <span class="source-line-no">199</span><span id="line-199"> protected void addRequiredOption(Option option) {</span> |
| <span class="source-line-no">200</span><span id="line-200"> option.setRequired(true);</span> |
| <span class="source-line-no">201</span><span id="line-201"> addOption(option);</span> |
| <span class="source-line-no">202</span><span id="line-202"> }</span> |
| <span class="source-line-no">203</span><span id="line-203"></span> |
| <span class="source-line-no">204</span><span id="line-204"> protected void addRequiredOptWithArg(String opt, String description) {</span> |
| <span class="source-line-no">205</span><span id="line-205"> Option option = new Option(opt, true, description);</span> |
| <span class="source-line-no">206</span><span id="line-206"> option.setRequired(true);</span> |
| <span class="source-line-no">207</span><span id="line-207"> addOption(option);</span> |
| <span class="source-line-no">208</span><span id="line-208"> }</span> |
| <span class="source-line-no">209</span><span id="line-209"></span> |
| <span class="source-line-no">210</span><span id="line-210"> protected void addRequiredOptWithArg(String shortOpt, String longOpt, String description) {</span> |
| <span class="source-line-no">211</span><span id="line-211"> Option option = new Option(shortOpt, longOpt, true, description);</span> |
| <span class="source-line-no">212</span><span id="line-212"> option.setRequired(true);</span> |
| <span class="source-line-no">213</span><span id="line-213"> addOption(option);</span> |
| <span class="source-line-no">214</span><span id="line-214"> }</span> |
| <span class="source-line-no">215</span><span id="line-215"></span> |
| <span class="source-line-no">216</span><span id="line-216"> protected void addOptNoArg(String opt, String description) {</span> |
| <span class="source-line-no">217</span><span id="line-217"> addOption(new Option(opt, false, description));</span> |
| <span class="source-line-no">218</span><span id="line-218"> }</span> |
| <span class="source-line-no">219</span><span id="line-219"></span> |
| <span class="source-line-no">220</span><span id="line-220"> protected void addOptNoArg(String shortOpt, String longOpt, String description) {</span> |
| <span class="source-line-no">221</span><span id="line-221"> addOption(new Option(shortOpt, longOpt, false, description));</span> |
| <span class="source-line-no">222</span><span id="line-222"> }</span> |
| <span class="source-line-no">223</span><span id="line-223"></span> |
| <span class="source-line-no">224</span><span id="line-224"> protected void addOptWithArg(String opt, String description) {</span> |
| <span class="source-line-no">225</span><span id="line-225"> addOption(new Option(opt, true, description));</span> |
| <span class="source-line-no">226</span><span id="line-226"> }</span> |
| <span class="source-line-no">227</span><span id="line-227"></span> |
| <span class="source-line-no">228</span><span id="line-228"> protected void addOptWithArg(String shortOpt, String longOpt, String description) {</span> |
| <span class="source-line-no">229</span><span id="line-229"> addOption(new Option(shortOpt, longOpt, true, description));</span> |
| <span class="source-line-no">230</span><span id="line-230"> }</span> |
| <span class="source-line-no">231</span><span id="line-231"></span> |
| <span class="source-line-no">232</span><span id="line-232"> public int getOptionAsInt(CommandLine cmd, String opt, int defaultValue) {</span> |
| <span class="source-line-no">233</span><span id="line-233"> return getOptionAsInt(cmd, opt, defaultValue, 10);</span> |
| <span class="source-line-no">234</span><span id="line-234"> }</span> |
| <span class="source-line-no">235</span><span id="line-235"></span> |
| <span class="source-line-no">236</span><span id="line-236"> public int getOptionAsInt(CommandLine cmd, String opt, int defaultValue, int radix) {</span> |
| <span class="source-line-no">237</span><span id="line-237"> if (cmd.hasOption(opt)) {</span> |
| <span class="source-line-no">238</span><span id="line-238"> return Integer.parseInt(cmd.getOptionValue(opt), radix);</span> |
| <span class="source-line-no">239</span><span id="line-239"> } else {</span> |
| <span class="source-line-no">240</span><span id="line-240"> return defaultValue;</span> |
| <span class="source-line-no">241</span><span id="line-241"> }</span> |
| <span class="source-line-no">242</span><span id="line-242"> }</span> |
| <span class="source-line-no">243</span><span id="line-243"></span> |
| <span class="source-line-no">244</span><span id="line-244"> public long getOptionAsLong(CommandLine cmd, String opt, int defaultValue) {</span> |
| <span class="source-line-no">245</span><span id="line-245"> return getOptionAsLong(cmd, opt, defaultValue, 10);</span> |
| <span class="source-line-no">246</span><span id="line-246"> }</span> |
| <span class="source-line-no">247</span><span id="line-247"></span> |
| <span class="source-line-no">248</span><span id="line-248"> public long getOptionAsLong(CommandLine cmd, String opt, int defaultValue, int radix) {</span> |
| <span class="source-line-no">249</span><span id="line-249"> if (cmd.hasOption(opt)) {</span> |
| <span class="source-line-no">250</span><span id="line-250"> return Long.parseLong(cmd.getOptionValue(opt), radix);</span> |
| <span class="source-line-no">251</span><span id="line-251"> } else {</span> |
| <span class="source-line-no">252</span><span id="line-252"> return defaultValue;</span> |
| <span class="source-line-no">253</span><span id="line-253"> }</span> |
| <span class="source-line-no">254</span><span id="line-254"> }</span> |
| <span class="source-line-no">255</span><span id="line-255"></span> |
| <span class="source-line-no">256</span><span id="line-256"> public double getOptionAsDouble(CommandLine cmd, String opt, double defaultValue) {</span> |
| <span class="source-line-no">257</span><span id="line-257"> if (cmd.hasOption(opt)) {</span> |
| <span class="source-line-no">258</span><span id="line-258"> return Double.parseDouble(cmd.getOptionValue(opt));</span> |
| <span class="source-line-no">259</span><span id="line-259"> } else {</span> |
| <span class="source-line-no">260</span><span id="line-260"> return defaultValue;</span> |
| <span class="source-line-no">261</span><span id="line-261"> }</span> |
| <span class="source-line-no">262</span><span id="line-262"> }</span> |
| <span class="source-line-no">263</span><span id="line-263"></span> |
| <span class="source-line-no">264</span><span id="line-264"> /**</span> |
| <span class="source-line-no">265</span><span id="line-265"> * Parse a number and enforce a range.</span> |
| <span class="source-line-no">266</span><span id="line-266"> */</span> |
| <span class="source-line-no">267</span><span id="line-267"> public static long parseLong(String s, long minValue, long maxValue) {</span> |
| <span class="source-line-no">268</span><span id="line-268"> long l = Long.parseLong(s);</span> |
| <span class="source-line-no">269</span><span id="line-269"> if (l < minValue || l > maxValue) {</span> |
| <span class="source-line-no">270</span><span id="line-270"> throw new IllegalArgumentException(</span> |
| <span class="source-line-no">271</span><span id="line-271"> "The value " + l + " is out of range [" + minValue + ", " + maxValue + "]");</span> |
| <span class="source-line-no">272</span><span id="line-272"> }</span> |
| <span class="source-line-no">273</span><span id="line-273"> return l;</span> |
| <span class="source-line-no">274</span><span id="line-274"> }</span> |
| <span class="source-line-no">275</span><span id="line-275"></span> |
| <span class="source-line-no">276</span><span id="line-276"> public static int parseInt(String s, int minValue, int maxValue) {</span> |
| <span class="source-line-no">277</span><span id="line-277"> return (int) parseLong(s, minValue, maxValue);</span> |
| <span class="source-line-no">278</span><span id="line-278"> }</span> |
| <span class="source-line-no">279</span><span id="line-279"></span> |
| <span class="source-line-no">280</span><span id="line-280"> /** Call this from the concrete tool class's main function. */</span> |
| <span class="source-line-no">281</span><span id="line-281"> protected void doStaticMain(String args[]) {</span> |
| <span class="source-line-no">282</span><span id="line-282"> int ret;</span> |
| <span class="source-line-no">283</span><span id="line-283"> try {</span> |
| <span class="source-line-no">284</span><span id="line-284"> ret = ToolRunner.run(HBaseConfiguration.create(), this, args);</span> |
| <span class="source-line-no">285</span><span id="line-285"> } catch (Exception ex) {</span> |
| <span class="source-line-no">286</span><span id="line-286"> LOG.error("Error running command-line tool", ex);</span> |
| <span class="source-line-no">287</span><span id="line-287"> ret = EXIT_FAILURE;</span> |
| <span class="source-line-no">288</span><span id="line-288"> }</span> |
| <span class="source-line-no">289</span><span id="line-289"> System.exit(ret);</span> |
| <span class="source-line-no">290</span><span id="line-290"> }</span> |
| <span class="source-line-no">291</span><span id="line-291"></span> |
| <span class="source-line-no">292</span><span id="line-292">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
