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 net.jaekl.cfb.CfbBundle;
  14 import net.jaekl.cfb.util.Command;
  15 import net.jaekl.qd.xml.XmlParseException;
  16
  17 import org.xml.sax.InputSource;
  18 import org.xml.sax.SAXException;
  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 projName, String buildNumber)
  28                 throws IOException, XmlParseException, SAXException
  29         {
  30                 Analysis result = new Analysis(projName, buildNumber);
  31
  32                 File fbOutput = outputWorkFile(workDir, fbp);
  33
  34                 String cmdLine = buildCommandLine(workDir, fbp, fbOutput);
  35                 pw.println(cmdLine);
  36                 pw.flush();
  37                 Command.Result fbResult = new Command().exec(cmdLine);
  38                 pw.println("==> " + fbResult.getRetCode());
  39                 pw.flush();
  40                 if (0 != fbResult.getRetCode()) {
  41                         // Our attempt to execute FindBugs failed.
  42                         // Report the error and return null.
  43                         String cannotExecFormat = trans(CfbBundle.CANNOT_EXEC);
  44                         String cannotExecMsg = MessageFormat.format(cannotExecFormat, cmdLine, fbResult.getRetCode());
  45                         pw.println(cannotExecMsg);
  46                         pw.println(trans(CfbBundle.STDOUT_WAS));
  47                         pw.println(fbResult.getStdout());
  48                         pw.println(trans(CfbBundle.STDERR_WAS));
  49                         pw.println(fbResult.getStderr());
  50                         return null;
  51                 }
  52
  53                 result.setEnd(new Date());
  54                 result.parse(new InputSource(fbOutput.getAbsolutePath()));
  55                 // result.dump(pw);
  56                 return result;
  57         }
  58
  59         String trans(String key) {
  60                 return CfbBundle.getInst(Locale.getDefault(Category.DISPLAY)).get(key);
  61         }
  62
  63         String buildCommandLine(File workDir, File fbp, File fbOutput)
  64         {
  65                 assert(null != workDir);
  66                 assert(null != fbp);
  67                 assert(null != fbOutput);
  68
  69                 StringBuilder sb = new StringBuilder();
  70
  71                 sb.append(m_msgMap.getFindBugsDir().getAbsolutePath())
  72                   .append(File.separator)
  73                   .append("bin")
  74                   .append(File.separator)
  75                   .append("findbugs -textui -xml -output ")
  76                   .append(fbOutput.getAbsolutePath())
  77                   .append(" -project ")
  78                   .append(fbp.getAbsolutePath());
  79
  80                 return sb.toString();
  81         }
  82
  83         // Come up with an appropriate name for the XML output file.
  84         //   workDir:  place where the file should be created
  85         //       fbp:  FindBugsProject file
  86         File outputWorkFile(File workDir, File fbp)
  87         {
  88                 assert(null != workDir);
  89                 assert(null != fbp);
  90
  91                 String workPath = workDir.getAbsolutePath();
  92
  93                 String projName = fbp.getName();
  94                 int len = projName.length();
  95                 if (len > 4) {
  96                         String extension = projName.substring(len - 4, len).toLowerCase(Locale.CANADA);
  97                         if (extension.equals(".fbp")) {
  98                                 projName = projName.substring(0, len - 4);
  99                         }
 100                 }
 101
 102                 return new File(workPath + File.separator + projName + ".xml");
 103         }
 104 }