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