prod/net/jaekl/cfb/analyze/Analyzer.java

   1 package net.jaekl.cfb.analyze;
   2
   3 // Copyright (C) 2015 Christian Jaekl
   4
   5 import java.io.File;
   6 import java.io.IOException;
   7 import java.io.PrintWriter;
   8 import java.text.MessageFormat;
   9 import java.util.Locale;
  10 import java.util.Locale.Category;
  11
  12 import org.xml.sax.InputSource;
  13 import org.xml.sax.SAXException;
  14
  15 import net.jaekl.cfb.CfbBundle;
  16 import net.jaekl.cfb.util.Command;
  17 import net.jaekl.qd.xml.XmlParseException;
  18
  19 public class Analyzer {
  20         MessageMap m_msgMap;
  21
  22         public Analyzer(MessageMap msgMap) {
  23                 m_msgMap = msgMap;
  24         }
  25
  26         public Analysis analyze(PrintWriter pw, File workDir, File fbp, String buildNumber) throws IOException, XmlParseException, SAXException
  27         {
  28                 Analysis result = new Analysis(buildNumber);
  29
  30                 File fbOutput = outputWorkFile(workDir, fbp);
  31
  32                 String cmdLine = buildCommandLine(workDir, fbp, fbOutput);
  33                 pw.println(cmdLine);
  34                 pw.flush();
  35                 Command.Result fbResult = new Command().exec(cmdLine);
  36                 if (0 != fbResult.getRetCode()) {
  37                         // Our attempt to execute FindBugs failed.
  38                         // Report the error and return null.
  39                         String cannotExecFormat = trans(CfbBundle.CANNOT_EXEC);
  40                         String cannotExecMsg = MessageFormat.format(cannotExecFormat, cmdLine, fbResult.getRetCode());
  41                         pw.println(cannotExecMsg);
  42                         pw.println(trans(CfbBundle.STDOUT_WAS));
  43                         pw.println(fbResult.getStdout());
  44                         pw.println(trans(CfbBundle.STDERR_WAS));
  45                         pw.println(fbResult.getStderr());
  46                         return null;
  47                 }
  48
  49                 result.parse(new InputSource(fbOutput.getAbsolutePath()));
  50                 result.dump(pw);
  51                 return result;
  52         }
  53
  54         String trans(String key) {
  55                 return CfbBundle.getInst(Locale.getDefault(Category.DISPLAY)).get(key);
  56         }
  57
  58         String buildCommandLine(File workDir, File fbp, File fbOutput)
  59         {
  60                 assert(null != workDir);
  61                 assert(null != fbp);
  62                 assert(null != fbOutput);
  63
  64                 StringBuilder sb = new StringBuilder();
  65
  66                 sb.append(m_msgMap.getFindBugsDir().getAbsolutePath())
  67                   .append(File.separator)
  68                   .append("bin")
  69                   .append(File.separator)
  70                   .append("findbugs -textui -xml -output ")
  71                   .append(fbOutput.getAbsolutePath())
  72                   .append(" -project ")
  73                   .append(fbp.getAbsolutePath());
  74
  75                 return sb.toString();
  76         }
  77
  78         // Come up with an appropriate name for the XML output file.
  79         //   workDir:  place where the file should be created
  80         //       fbp:  FindBugsProject file
  81         File outputWorkFile(File workDir, File fbp)
  82         {
  83                 assert(null != workDir);
  84                 assert(null != fbp);
  85
  86                 String workPath = workDir.getAbsolutePath();
  87
  88                 String projName = fbp.getName();
  89                 int len = projName.length();
  90                 if (len > 4) {
  91                         String extension = projName.substring(len - 4, len).toLowerCase(Locale.CANADA);
  92                         if (extension.equals(".fbp")) {
  93                                 projName = projName.substring(0, len - 4);
  94                         }
  95                 }
  96
  97                 return new File(workPath + File.separator + projName + ".xml");
  98         }
  99 }