src/main/java/eu/svjatoslav/inspector/java/structure/ClassGraph.java

   1 /*
   2  * JavaInspect - Utility to visualize java software
   3  * Copyright (C) 2013, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of version 2 of the GNU General Public License
   7  * as published by the Free Software Foundation.
   8  */
   9
  10 package eu.svjatoslav.inspector.java.structure;
  11
  12 import java.io.File;
  13 import java.io.IOException;
  14 import java.io.PrintWriter;
  15 import java.util.HashMap;
  16 import java.util.Map;
  17
  18 import eu.svjatoslav.commons.file.CommonPathResolver;
  19 import eu.svjatoslav.inspector.java.methods.Clazz;
  20 import eu.svjatoslav.inspector.java.methods.ProjectScanner;
  21
  22 public class ClassGraph {
  23
  24         /**
  25          * Maps class fully qualified names to class descriptors.
  26          */
  27         Map<String, ClassDescriptor> nameToClassMap = new HashMap<String, ClassDescriptor>();
  28
  29         public Filter filter = new Filter();
  30
  31         public ClassGraph() {
  32         }
  33
  34         public ClassGraph(final Class<? extends Object> clazz) {
  35                 addClass(clazz);
  36         }
  37
  38         public ClassGraph(final Object root) {
  39                 addClass(root.getClass());
  40         }
  41
  42         public ClassDescriptor addClass(final Class<? extends Object> clazz) {
  43
  44                 if (clazz == null)
  45                         return null;
  46
  47                 final String className = clazz.getName();
  48
  49                 if (nameToClassMap.containsKey(className))
  50                         return nameToClassMap.get(className);
  51
  52                 return new ClassDescriptor(clazz, this);
  53         }
  54
  55         public ClassDescriptor addObject(final Object object) {
  56                 return addClass(object.getClass());
  57         }
  58
  59         public void addProject(final String path) {
  60                 final ProjectScanner projectScanner = new ProjectScanner(new File(path));
  61                 for (final Clazz clazz : projectScanner.getAllClasses())
  62                         try {
  63                                 System.out.println("Class full name: " + clazz.getFullName());
  64                                 final Class c = this.getClass().forName(clazz.getFullName());
  65                                 addClass(c);
  66                         } catch (final Exception exception) {
  67                                 System.out.println("cannot add class: "
  68                                                 + exception.getMessage());
  69                         }
  70         }
  71
  72         public void generateGraph(final String graphName) {
  73                 generateGraph(graphName, false);
  74         }
  75
  76         public void generateGraph(final String graphName, final boolean keepDotFile) {
  77
  78                 final String desktopPath = CommonPathResolver.getDesktopDirectory()
  79                                 .getAbsolutePath() + "/";
  80
  81                 final String dotFilePath = desktopPath + graphName + ".dot";
  82                 final String imageFilePath = desktopPath + graphName + ".png";
  83
  84                 System.out.println("Dot file path:" + dotFilePath);
  85
  86                 try {
  87                         // write DOT file to disk
  88                         final PrintWriter out = new PrintWriter(dotFilePath);
  89                         out.write(getDot());
  90                         out.close();
  91
  92                         // execute GraphViz to visualize graph
  93                         try {
  94                                 Runtime.getRuntime()
  95                                                 .exec(new String[] { "dot", "-Tpng", dotFilePath, "-o",
  96                                                                 imageFilePath }).waitFor();
  97                         } catch (final InterruptedException e) {
  98                         } finally {
  99                         }
 100
 101                         if (!keepDotFile) {
 102                                 // delete dot file
 103                                 final File dotFile = new File(dotFilePath);
 104                                 dotFile.delete();
 105                         }
 106                 } catch (final IOException e) {
 107                         System.err.println(e);
 108                 }
 109         }
 110
 111         private String getDot() {
 112                 final StringBuffer result = new StringBuffer();
 113
 114                 result.append("digraph Java {\n");
 115                 result.append("graph [rankdir=LR, overlap = false, concentrate=true];\n");
 116
 117                 for (final Map.Entry<String, ClassDescriptor> entry : nameToClassMap
 118                                 .entrySet())
 119                         result.append(entry.getValue().getDot());
 120
 121                 result.append("}\n");
 122
 123                 final String resultStr = result.toString();
 124                 return resultStr;
 125         }
 126
 127 }