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<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="en"><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/><link rel="stylesheet" href="../jacoco-resources/report.css" type="text/css"/><link rel="shortcut icon" href="../jacoco-resources/report.gif" type="image/gif"/><title>Everge.java</title><link rel="stylesheet" href="../jacoco-resources/prettify.css" type="text/css"/><script type="text/javascript" src="../jacoco-resources/prettify.js"></script></head><body onload="window['PR_TAB_WIDTH']=4;prettyPrint()"><div class="breadcrumb" id="breadcrumb"><span class="info"><a href="../jacoco-sessions.html" class="el_session">Sessions</a></span><a href="../index.html" class="el_report">everge</a> > <a href="index.source.html" class="el_package">bjc.everge</a> > <span class="el_source">Everge.java</span></div><h1>Everge.java</h1><pre class="source lang-java linenums">package bjc.everge;
import java.io.*;
import java.nio.charset.Charset;
import java.nio.file.*;
import java.util.*;
import java.util.concurrent.locks.*;
import java.util.regex.*;
/**
* Everge front-end application.
*
* @author Ben Culkin
*/
<span class="fc" id="L20">public class Everge {</span>
/**
* Details how we handle our input.
*/
<span class="fc" id="L24"> public static enum InputStatus {</span>
/**
* Process the input as a single string.
*/
<span class="fc" id="L28"> ALL,</span>
/**
* Process the input line-by-line.
*/
<span class="fc" id="L32"> LINE,</span>
/**
* Process the input, splitting it around occurances of a regex.
*/
<span class="fc" id="L36"> REGEX;</span>
}
// Options for doing repl-pairs
<span class="fc" id="L40"> private ReplOpts ropts = new ReplOpts();</span>
// Loaded repl-pairs
<span class="fc" id="L43"> private List<ReplPair> lrp = new ArrayList<>();</span>
// Input status
<span class="fc" id="L46"> private InputStatus inputStat = InputStatus.ALL;</span>
// Are we processing CLI args? (haven't seen a -- yet)
<span class="fc" id="L49"> private boolean doingArgs = true;</span>
// Should an NL be printed after each replace?
<span class="fc" id="L52"> private boolean printNL = true;</span>
// Verbosity level
<span class="fc" id="L55"> private int verbosity = 0;</span>
// The pattern to use for REGEX input mode
private String pattern;
// The queue of arguments to process
<span class="fc" id="L61"> private Deque<String> argQue = new LinkedList<>();</span>
// Used to prevent inter-mixing argument alterations with input processing.
<span class="fc" id="L64"> private ReadWriteLock argLock = new ReentrantReadWriteLock();</span>
// Input/output streams
/**
* Stream to use for normal output.
*/
<span class="fc" id="L70"> public PrintStream outStream = System.out;</span>
/**
* Stream to use for error output.
*/
<span class="fc" id="L74"> public PrintStream errStream = System.err;</span>
/**
* Main method for front end,
*
* @param args
* The CLI arguments.
*/
public static void main(String[] args) {
<span class="nc" id="L83"> Everge evg = new Everge();</span>
<span class="nc" id="L85"> evg.processArgs(args);</span>
<span class="nc" id="L86"> }</span>
/**
* Process one or more command line arguments.
*
* @param args
* The arguments to process.
* @return Whether we processed succesfully or not.
*/
public boolean processArgs(String... args) {
<span class="nc" id="L96"> List<String> errs = new ArrayList<>();</span>
<span class="nc" id="L98"> boolean stat = processArgs(errs, args);</span>
<span class="nc bnc" id="L99" title="All 2 branches missed."> if (!stat) {</span>
<span class="nc bnc" id="L100" title="All 2 branches missed."> for (String err : errs) {</span>
<span class="nc" id="L101"> errStream.println(err);</span>
<span class="nc" id="L102"> }</span>
}
<span class="nc" id="L105"> return stat;</span>
}
/**
* Process one or more command line arguments.
*
* @param args
* The arguments to process.
* @param errs
* The list to stash errors in.
* @return Whether we processed succesfully or not.
*/
public boolean processArgs(List<String> errs, String... args) {
<span class="fc" id="L118"> argLock.writeLock().lock();</span>
<span class="fc" id="L120"> boolean retStat = true;</span>
try {
<span class="fc" id="L123"> loadQueue(args);</span>
// Process CLI args
<span class="fc bfc" id="L126" title="All 2 branches covered."> while(argQue.size() > 0) {</span>
<span class="fc" id="L127"> String arg = argQue.pop();</span>
<span class="pc bpc" id="L129" title="1 of 2 branches missed."> if (arg.equals("--")) {</span>
<span class="nc" id="L130"> doingArgs = false;</span>
<span class="nc" id="L131"> continue;</span>
}
// Process an argument
<span class="pc bpc" id="L135" title="1 of 4 branches missed."> if (doingArgs && arg.startsWith("-")) {</span>
<span class="fc" id="L136"> String argName = arg;</span>
<span class="fc" id="L137"> String argBody = "";</span>
// Process arguments to arguments
<span class="fc" id="L140"> int idx = arg.indexOf("=");</span>
<span class="pc bpc" id="L141" title="1 of 2 branches missed."> if (idx != -1) {</span>
<span class="nc" id="L142"> argName = arg.substring(0, idx);</span>
<span class="nc" id="L143"> argBody = arg.substring(idx + 1);</span>
}
<span class="pc bpc" id="L146" title="11 of 13 branches missed."> switch (argName) {</span>
case "-n":
case "--newline":
<span class="nc" id="L149"> printNL = true;</span>
<span class="nc" id="L150"> break;</span>
case "-N":
case "--no-newline":
<span class="nc" id="L153"> printNL = false;</span>
<span class="nc" id="L154"> break;</span>
case "-v":
case "--verbose":
<span class="fc" id="L157"> verbosity += 1;</span>
<span class="fc" id="L158"> break;</span>
case "-q":
case "--quiet":
<span class="nc" id="L161"> verbosity -= 1;</span>
<span class="nc" id="L162"> break;</span>
case "--verbosity":
<span class="nc bnc" id="L164" title="All 2 branches missed."> if (argQue.size() < 1) {</span>
<span class="nc" id="L165"> errs.add("[ERROR] No parameter to --verbosity");</span>
<span class="nc" id="L166"> retStat = false;</span>
<span class="nc" id="L167"> break;</span>
}
<span class="nc" id="L169"> argBody = argQue.pop();</span>
<span class="nc" id="L170"> break;</span>
case "-V":
try {
<span class="nc" id="L173"> verbosity = Integer.parseInt(argBody);</span>
<span class="nc" id="L174"> } catch (NumberFormatException nfex) {</span>
<span class="nc" id="L175"> String msg = String.format("[ERROR] Invalid verbosity: '%s' is not an integer",</span>
argBody);
<span class="nc" id="L177"> errs.add(msg);</span>
<span class="nc" id="L178"> retStat = false;</span>
<span class="nc" id="L179"> }</span>
<span class="nc" id="L180"> break;</span>
case "--pattern":
<span class="nc bnc" id="L182" title="All 2 branches missed."> if (argQue.size() < 1) {</span>
<span class="nc" id="L183"> errs.add("[ERROR] No parameter to --pattern");</span>
<span class="nc" id="L184"> retStat = false;</span>
<span class="nc" id="L185"> break;</span>
}
<span class="nc" id="L187"> argBody = argQue.pop();</span>
case "-p":
try {
<span class="nc" id="L190"> pattern = argBody;</span>
<span class="nc" id="L192"> Pattern.compile(argBody);</span>
<span class="nc" id="L193"> } catch (PatternSyntaxException psex) {</span>
<span class="nc" id="L194"> String msg = String.format("[ERROR] Pattern '%s' is invalid: %s",</span>
<span class="nc" id="L195"> pattern, psex.getMessage());</span>
<span class="nc" id="L196"> errs.add(msg);</span>
<span class="nc" id="L197"> retStat = false;</span>
<span class="nc" id="L198"> }</span>
<span class="nc" id="L199"> break;</span>
case "--file":
<span class="pc bpc" id="L201" title="1 of 2 branches missed."> if (argQue.size() < 1) {</span>
<span class="nc" id="L202"> errs.add("[ERROR] No argument to --file");</span>
<span class="nc" id="L203"> retStat = false;</span>
<span class="nc" id="L204"> break;</span>
}
<span class="fc" id="L206"> argBody = argQue.pop();</span>
case "-f":
<span class="fc" id="L208"> try (FileInputStream fis = new FileInputStream(argBody);</span>
<span class="fc" id="L209"> Scanner scn = new Scanner(fis)) {</span>
<span class="fc" id="L210"> List<ReplError> ferrs = new ArrayList<>();</span>
<span class="fc" id="L212"> lrp = ReplPair.readList(lrp, scn, ferrs, ropts);</span>
<span class="pc bpc" id="L214" title="1 of 2 branches missed."> if (ferrs.size() > 0) {</span>
<span class="nc" id="L215"> StringBuilder sb = new StringBuilder();</span>
<span class="nc" id="L217"> String errString = "an error";</span>
<span class="nc bnc" id="L218" title="All 2 branches missed."> if (ferrs.size() > 1) errString = String.format("%d errors");</span>
{
<span class="nc" id="L221"> String msg = String.format(</span>
"[ERROR] Encountered %s parsing data file'%s'\n",
errString, argBody);
<span class="nc" id="L224"> sb.append(msg);</span>
}
<span class="nc bnc" id="L227" title="All 2 branches missed."> for (ReplError err : ferrs) {</span>
<span class="nc" id="L228"> sb.append(String.format("\t%s\n", err));</span>
<span class="nc" id="L229"> }</span>
<span class="nc" id="L231"> errs.add(sb.toString());</span>
<span class="nc" id="L232"> retStat = false;</span>
}
<span class="nc" id="L234"> } catch (FileNotFoundException fnfex) {</span>
<span class="nc" id="L235"> String msg = String.format("[ERROR] Could not open data file '%s' for input",</span>
argBody);
<span class="nc" id="L237"> errs.add(msg);</span>
<span class="nc" id="L238"> retStat = false;</span>
<span class="nc" id="L239"> } catch (IOException ioex) {</span>
<span class="nc" id="L240"> String msg = String.format("[ERROR] Unknown I/O error reading data file '%s': %s",</span>
<span class="nc" id="L241"> argBody, ioex.getMessage());</span>
<span class="nc" id="L242"> errs.add(msg);</span>
<span class="nc" id="L243"> retStat = false;</span>
<span class="pc" id="L244"> }</span>
<span class="nc" id="L245"> break;</span>
case "--arg-file":
<span class="nc bnc" id="L247" title="All 2 branches missed."> if (argQue.size() < 1) {</span>
<span class="nc" id="L248"> errs.add("[ERROR] No argument to --arg-file");</span>
<span class="nc" id="L249"> break;</span>
}
<span class="nc" id="L251"> argBody = argQue.pop();</span>
case "-F":
<span class="nc" id="L253"> try (FileInputStream fis = new FileInputStream(argBody);</span>
<span class="nc" id="L254"> Scanner scn = new Scanner(fis)) {</span>
<span class="nc" id="L255"> List<String> sl = new ArrayList<>();</span>
<span class="nc bnc" id="L257" title="All 2 branches missed."> while (scn.hasNextLine()) {</span>
<span class="nc" id="L258"> String ln = scn.nextLine().trim();</span>
<span class="nc bnc" id="L260" title="All 2 branches missed."> if (ln.equals("")) continue;</span>
<span class="nc bnc" id="L261" title="All 2 branches missed."> if (ln.startsWith("#")) continue;</span>
<span class="nc" id="L263"> sl.add(ln);</span>
<span class="nc" id="L264"> }</span>
<span class="nc" id="L266"> processArgs(sl.toArray(new String[0]));</span>
<span class="nc" id="L267"> } catch (FileNotFoundException fnfex) {</span>
<span class="nc" id="L268"> String msg = String.format("[ERROR] Could not open argument file '%s' for input", argBody);</span>
<span class="nc" id="L269"> errs.add(msg);</span>
<span class="nc" id="L270"> retStat = false;</span>
<span class="nc" id="L271"> } catch (IOException ioex) {</span>
<span class="nc" id="L272"> String msg = String.format("[ERROR] Unknown I/O error reading input file '%s': %s",</span>
<span class="nc" id="L273"> argBody, ioex.getMessage());</span>
<span class="nc" id="L274"> errs.add(msg);</span>
<span class="nc" id="L275"> retStat = false;</span>
<span class="nc" id="L276"> }</span>
<span class="nc" id="L277"> break;</span>
default:
{
<span class="nc" id="L280"> String msg = String.format("[ERROR] Unrecognised CLI argument name '%s'\n", argName);</span>
<span class="nc" id="L281"> errs.add(msg);</span>
<span class="nc" id="L282"> retStat = false;</span>
}
}
<span class="fc" id="L285"> } else {</span>
// Strip off an escaped initial dash
<span class="pc bpc" id="L287" title="1 of 2 branches missed."> if (arg.startsWith("\\-")) arg = arg.substring(1);</span>
<span class="fc" id="L289"> processInputFile(arg);</span>
}
<span class="fc" id="L291"> }</span>
} finally {
<span class="fc" id="L293"> argLock.writeLock().unlock();</span>
}
<span class="fc" id="L296"> return retStat;</span>
}
/**
* Process a input file.
*
* @param fle
* Input file to process.
* @return Whether we processed succesfully or not.
*/
public boolean processInputFile(String fle) {
<span class="fc" id="L307"> List<String> errs = new ArrayList<>();</span>
<span class="fc" id="L309"> boolean stat = processInputFile(errs, fle);</span>
<span class="pc bpc" id="L310" title="1 of 2 branches missed."> if (!stat) {</span>
<span class="nc bnc" id="L311" title="All 2 branches missed."> for (String err : errs) {</span>
<span class="nc" id="L312"> errStream.println(err);</span>
<span class="nc" id="L313"> }</span>
}
<span class="fc" id="L316"> return stat;</span>
}
/**
* Process a input file.
*
* @param fle
* Input file to process.
* @param errs
* List to accumulate errors in.
* @return Whether we processed succesfully or not.
*/
public boolean processInputFile(List<String> errs, String fle) {
<span class="fc" id="L329"> argLock.readLock().lock();</span>
// Read in and do replacements on a file
try {
<span class="pc bpc" id="L333" title="1 of 2 branches missed."> if (verbosity > 2) {</span>
<span class="nc" id="L334"> errStream.printf("[TRACE] Reading file (%s) in mode (%s)\n", fle, inputStat);</span>
}
<span class="pc bpc" id="L337" title="1 of 2 branches missed."> if (inputStat == InputStatus.ALL) {</span>
<span class="fc" id="L338"> Path pth = Paths.get(fle);</span>
<span class="pc bpc" id="L340" title="1 of 2 branches missed."> if (!Files.isReadable(pth)) {</span>
<span class="nc" id="L341"> String msg = String.format("[ERROR] File '%s' is not readable\n", fle);</span>
<span class="nc" id="L342"> errs.add(msg);</span>
<span class="nc" id="L343"> return false;</span>
}
<span class="fc" id="L346"> byte[] inp = Files.readAllBytes(pth);</span>
<span class="fc" id="L348"> String strang = new String(inp, Charset.forName("UTF-8"));</span>
<span class="fc" id="L350"> processString(strang);</span>
<span class="pc bnc" id="L351" title="All 2 branches missed."> } else if (inputStat == InputStatus.LINE) {</span>
<span class="nc" id="L352"> try (FileInputStream fis = new FileInputStream(fle); Scanner scn = new Scanner(fis)) {</span>
<span class="nc bnc" id="L353" title="All 2 branches missed."> while(scn.hasNextLine()) {</span>
<span class="nc" id="L354"> processString(scn.nextLine());</span>
}
<span class="nc" id="L356"> }</span>
<span class="nc bnc" id="L357" title="All 2 branches missed."> } else if (inputStat == InputStatus.REGEX) {</span>
<span class="nc" id="L358"> try (FileInputStream fis = new FileInputStream(fle); Scanner scn = new Scanner(fis)) {</span>
<span class="nc" id="L359"> scn.useDelimiter(pattern);</span>
<span class="nc bnc" id="L361" title="All 2 branches missed."> while(scn.hasNext()) {</span>
<span class="nc" id="L362"> processString(scn.next());</span>
}
<span class="nc" id="L364"> }</span>
} else {
<span class="nc" id="L366"> String msg = String.format("[INTERNAL-ERROR] Input status '%s' is not yet implemented\n",</span>
inputStat);
<span class="nc" id="L368"> errs.add(msg);</span>
<span class="nc" id="L369"> return false;</span>
}
<span class="nc" id="L371"> } catch (IOException ioex) {</span>
<span class="nc" id="L372"> String msg = String.format("[ERROR] Unknown I/O related error for file '%s'\n\tError was %s",</span>
<span class="nc" id="L373"> fle, ioex.getMessage());</span>
<span class="nc" id="L374"> errs.add(msg);</span>
<span class="nc" id="L375"> return false;</span>
} finally {
<span class="fc" id="L377"> argLock.readLock().unlock();</span>
}
<span class="fc" id="L380"> return true;</span>
}
/**
* Process an input string.
*
* @param inp
* The input string to process.
*/
public void processString(String inp) {
<span class="fc" id="L390"> argLock.readLock().lock();</span>
try {
<span class="fc" id="L393"> String strang = inp;</span>
<span class="fc bfc" id="L395" title="All 2 branches covered."> for (ReplPair rp : lrp) {</span>
<span class="fc" id="L396"> strang = rp.apply(strang);</span>
<span class="fc" id="L397"> }</span>
<span class="fc" id="L399"> outStream.print(strang);</span>
<span class="pc bpc" id="L400" title="1 of 2 branches missed."> if (printNL) outStream.println();</span>
} finally {
<span class="fc" id="L402"> argLock.readLock().unlock();</span>
}
<span class="fc" id="L404"> }</span>
// Load arguments into the argument queue.
private void loadQueue(String... args) {
<span class="fc" id="L408"> boolean doArgs = true;</span>
<span class="fc bfc" id="L409" title="All 2 branches covered."> for (String arg : args) {</span>
<span class="pc bpc" id="L410" title="1 of 2 branches missed."> if (arg.equals("--")) doArgs = false;</span>
// Handle things like -nNv correctly
<span class="pc bpc" id="L413" title="1 of 2 branches missed."> if (doArgs) {</span>
<span class="fc bfc" id="L414" title="All 4 branches covered."> if (arg.startsWith("-") && !arg.startsWith("--")) {</span>
<span class="fc" id="L415"> char[] car = arg.substring(1).toCharArray();</span>
<span class="fc bfc" id="L416" title="All 2 branches covered."> for (char c : car) {</span>
<span class="fc" id="L417"> String argstr = String.format("-%c", c);</span>
<span class="fc" id="L418"> argQue.add(argstr);</span>
}
<span class="fc" id="L420"> } else {</span>
<span class="fc" id="L421"> argQue.add(arg);</span>
}
} else {
<span class="nc" id="L424"> argQue.add(arg);</span>
}
}
<span class="fc" id="L427"> }</span>
}
</pre><div class="footer"><span class="right">Created with <a href="http://www.jacoco.org/jacoco">JaCoCo</a> 0.8.2.201808211720</span></div></body></html>
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