X-Git-Url: http://www2.svjatoslav.eu/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Feu%2Fsvjatoslav%2Finspector%2Fjava%2FMain.java;h=58963ff787039d9383c8bf7e0b7fbd10e004ac24;hb=4aabbddd2f592ec80977a20cf2ad58cc3ede802b;hp=f24eae34b1c4d7ce517bd715f361acbc05e4333a;hpb=52abcfeed07d308b2b377985b5cb8a776bb2e375;p=javainspect.git

diff --git a/src/main/java/eu/svjatoslav/inspector/java/Main.java b/src/main/java/eu/svjatoslav/inspector/java/Main.java
index f24eae3..58963ff 100644
--- a/src/main/java/eu/svjatoslav/inspector/java/Main.java
+++ b/src/main/java/eu/svjatoslav/inspector/java/Main.java
@@ -2,6 +2,17 @@ package eu.svjatoslav.inspector.java;
 
 import eu.svjatoslav.inspector.java.structure.ClassGraph;
 
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.jar.JarEntry;
+import java.util.jar.JarInputStream;
+
 import static java.io.File.separator;
 import static java.lang.System.getProperty;
 
@@ -9,22 +20,81 @@ import static java.lang.System.getProperty;
  * This class acts as a commandline interface for JavaInspect.
  */
 public class Main {
-	public static void main(String[] args) {
-		if (args.length == 0) {
-			System.err.println("usage: javainspect [PROJECT_DIR] [PACKAGE_GLOB] [GRAPH_NAME]");
-			System.exit(1);
-		}
-
-		String projectDir  = args[0];
-		String packageGlob = args[1];
-		String graphName   = args[2];
-
-		ClassGraph cg = new ClassGraph();
-		cg.setTargetDirectoryPath(getProperty("user.dir") + separator);
-
-		cg.addProject(projectDir);
-		cg.whitelistClassGlob(packageGlob);
-		cg.setKeepDotFile(true);
-		cg.generateGraph(graphName);
-	}
+    public static void main(String[] args) throws IOException, ClassNotFoundException {
+        CommandlineConfiguration configuration = new CommandlineConfiguration(args);
+
+        List<File> jarFiles = configuration.jarFiles.getValue();
+
+        URLClassLoader classLoader = new URLClassLoader(
+                getFileUrls(jarFiles),
+                configuration.getClass().getClassLoader());
+
+        ClassGraph classGraph = new ClassGraph();
+        classGraph.setTargetDirectoryPath(getProperty("user.dir") + separator);
+        classGraph.setKeepDotFile(true);
+
+        for (File jarFile : jarFiles)
+            addJarToGraph(jarFile, classLoader, classGraph, configuration);
+
+        classGraph.generateGraph(configuration.graphName.getValue());
+
+        if (configuration.isDebug())
+            System.out.println("Graph ready.");
+    }
+
+    private static URL[] getFileUrls(List<File> jarFiles) {
+        List<URL> urls = new ArrayList<>();
+        jarFiles.forEach((File file) -> {
+            try {
+                urls.add(file.toURI().toURL());
+            } catch (MalformedURLException e) {
+                throw new RuntimeException(e);
+            }
+        });
+
+        return urls.toArray(new URL[urls.size()]);
+    }
+
+    private static void addJarToGraph(
+            File jarFile, URLClassLoader classLoader, ClassGraph classGraph, CommandlineConfiguration configuration)
+            throws IOException, ClassNotFoundException {
+
+        for (String className : getClassNamesFromJar(jarFile)) {
+            if (configuration.isDebug())
+                System.out.println("Adding class to graph: " + className);
+
+            classGraph.add(loadClassByName(classLoader, className));
+        }
+    }
+
+    private static Class loadClassByName(URLClassLoader classLoader, String className) throws ClassNotFoundException {
+        return Class.forName(className, true, classLoader);
+    }
+
+    public static List<String> getClassNamesFromJar(File jarFile) throws IOException {
+        List<String> result = new ArrayList<>();
+        try (
+                JarInputStream jarInputStream = new JarInputStream(new FileInputStream(jarFile));
+        ) {
+            while (true) {
+                JarEntry jarEntry = jarInputStream.getNextJarEntry();
+                if (jarEntry == null)
+                    break;
+
+                if (isClassFile(jarEntry))
+                    result.add(getClassNameFromFileName(jarEntry));
+            }
+
+            return result;
+        }
+    }
+
+    private static boolean isClassFile(JarEntry jarEntry) {
+        return jarEntry.getName().endsWith(".class");
+    }
+
+    private static String getClassNameFromFileName(JarEntry jarEntry) {
+        String result = jarEntry.getName().replaceAll("/", "\\.");
+        return result.substring(0, result.lastIndexOf('.'));
+    }
 }