o MAVEN-327: Ashkelon plugin

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@113115 13f79535-47bb-0310-9956-ffa450edef68

ashkelon/src/main/org/apache/maven/ashkelon/PackageTool.java

@@ -0,0 +1,110 @@
+/*
+ * Created on 12/03/2003
+ *
+ * To change this generated comment go to 
+ * Window>Preferences>Java>Code Generation>Code Template
+ */
+package org.apache.maven.ashkelon;
+
+import java.io.File;
+import java.io.FileFilter;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+/**
+ * @author <a href="bwalding@jakarta.org">Ben Walding</a>
+ * @version $Id: PackageTool.java,v 1.1 2003/03/12 20:20:29 bwalding Exp $
+ */
+public class PackageTool
+{
+
+    /**
+     * Count the number of java files in a directory
+     * @param dir
+     * @return
+     */
+    public static int countJavaFiles(File dir)
+    {
+        FileFilter ff = new FileFilter()
+        {
+            public boolean accept(File pathname)
+            {
+                String path = pathname.getName().toLowerCase();
+                if (path.endsWith(".java"))
+                {
+                    return true;
+                }
+
+                return false;
+            }
+        };
+
+        File[] f = dir.listFiles(ff);
+
+        return f.length;
+
+    }
+    /**
+     * 
+     * @param startDir
+     * @return a List of String object representing the packages
+     */
+    public List findPackages(File startDir)
+    {
+        List results = internalFindPackages(new ArrayList(), startDir);
+        //      Now post process them
+        List packages = new ArrayList(results.size());
+
+        Iterator resultsIter = results.iterator();
+        while (resultsIter.hasNext())
+        {
+            File f = (File) resultsIter.next();
+            String n = f.getAbsolutePath();
+
+            if (n.equals(startDir.getAbsolutePath()))
+            {
+                //Default package
+                packages.add("");
+            }
+            else
+            {
+
+                n = n.substring(startDir.getAbsolutePath().length() + 1);
+                n = n.replace('/', '.');
+                n = n.replace('\\', '.');
+                packages.add(n);
+            }
+        }
+        return packages;
+    }
+
+    public File[] getSubDir(File dir)
+    {
+
+        FileFilter ff = new FileFilter()
+        {
+            public boolean accept(File pathname)
+            {
+                return pathname.isDirectory();
+            }
+        };
+        return dir.listFiles(ff);
+    }
+
+    protected List internalFindPackages(List results, File startDir)
+    {
+        if (countJavaFiles(startDir) != 0)
+        {
+
+            results.add(startDir);
+        }
+        File subdirs[] = getSubDir(startDir);
+        for (int i = 0; i < subdirs.length; i++)
+        {
+            internalFindPackages(results, subdirs[i]);
+        }
+
+        return results;
+    }
+}