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.Date;
  10 import java.util.Locale;
  11 import java.util.Locale.Category;
  12
  13 import org.xml.sax.InputSource;
  14 import org.xml.sax.SAXException;
  15
  16 import net.jaekl.cfb.CfbBundle;
  17 import net.jaekl.cfb.util.Command;
  18 import net.jaekl.qd.xml.XmlParseException;
  19
  20 public class Analyzer {
  21         MessageMap m_msgMap;
  22
  23         public Analyzer(MessageMap msgMap) {
  24                 m_msgMap = msgMap;
  25         }
  26
  27         public Analysis analyze(PrintWriter pw, File workDir, File fbp, String buildNumber) throws IOException, XmlParseException, SAXException
  28         {
  29                 Analysis result = new Analysis(buildNumber);
  30
  31                 File fbOutput = outputWorkFile(workDir, fbp);
  32
  33                 String cmdLine = buildCommandLine(workDir, fbp, fbOutput);
  34                 pw.println(cmdLine);
  35                 pw.flush();
  36                 Command.Result fbResult = new Command().exec(cmdLine);
  37                 pw.println("==> " + fbResult.getRetCode());
  38                 pw.flush();
  39                 if (0 != fbResult.getRetCode()) {
  40                         // Our attempt to execute FindBugs failed.
  41                         // Report the error and return null.
  42                         String cannotExecFormat = trans(CfbBundle.CANNOT_EXEC);
  43                         String cannotExecMsg = MessageFormat.format(cannotExecFormat, cmdLine, fbResult.getRetCode());
  44                         pw.println(cannotExecMsg);
  45                         pw.println(trans(CfbBundle.STDOUT_WAS));
  46                         pw.println(fbResult.getStdout());
  47                         pw.println(trans(CfbBundle.STDERR_WAS));
  48                         pw.println(fbResult.getStderr());
  49                         return null;
  50                 }
  51
  52                 result.setEnd(new Date());
  53                 result.parse(new InputSource(fbOutput.getAbsolutePath()));
  54                 // result.dump(pw);
  55                 return result;
  56         }
  57
  58         String trans(String key) {
  59                 return CfbBundle.getInst(Locale.getDefault(Category.DISPLAY)).get(key);
  60         }
  61
  62         String buildCommandLine(File workDir, File fbp, File fbOutput)
  63         {
  64                 assert(null != workDir);
  65                 assert(null != fbp);
  66                 assert(null != fbOutput);
  67
  68                 StringBuilder sb = new StringBuilder();
  69
  70                 sb.append(m_msgMap.getFindBugsDir().getAbsolutePath())
  71                   .append(File.separator)
  72                   .append("bin")
  73                   .append(File.separator)
  74                   .append("findbugs -textui -xml -output ")
  75                   .append(fbOutput.getAbsolutePath())
  76                   .append(" -project ")
  77                   .append(fbp.getAbsolutePath());
  78
  79                 return sb.toString();
  80         }
  81
  82         // Come up with an appropriate name for the XML output file.
  83         //   workDir:  place where the file should be created
  84         //       fbp:  FindBugsProject file
  85         File outputWorkFile(File workDir, File fbp)
  86         {
  87                 assert(null != workDir);
  88                 assert(null != fbp);
  89
  90                 String workPath = workDir.getAbsolutePath();
  91
  92                 String projName = fbp.getName();
  93                 int len = projName.length();
  94                 if (len > 4) {
  95                         String extension = projName.substring(len - 4, len).toLowerCase(Locale.CANADA);
  96                         if (extension.equals(".fbp")) {
  97                                 projName = projName.substring(0, len - 4);
  98                         }
  99                 }
 100
 101                 return new File(workPath + File.separator + projName + ".xml");
 102         }
 103 }