1 files changed, 90 insertions, 0 deletions
diff --git a/Master/Agile Software Development/TestApp/src/testapp/Locate.java b/Master/Agile Software Development/TestApp/src/testapp/Locate.java
new file mode 100644
index 0000000..49f96a9
--- /dev/null
+++ b/Master/Agile Software Development/TestApp/src/testapp/Locate.java
@@ -0,0 +1,90 @@
+/*
+ * 
+ */
+
+package testapp;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.util.logging.*;
+
+/**@author McDowell*/
+public class Locate {
+  
+  /**
+   * Returns the URL of a given class.
+   * @param c    a non-null class
+   * @return    the URL for that class
+   */
+  public static URL getUrlOfClass(Class c) {
+    if(c==null) {
+      throw new NullPointerException();
+    }
+    String className = c.getName();
+    String resourceName = className.replace('.', '/') + ".class";
+    ClassLoader classLoader = c.getClassLoader();
+    if(classLoader==null) {
+      classLoader = ClassLoader.getSystemClassLoader();
+    }
+    URL url = classLoader.getResource(resourceName);
+    return url;
+  }
+  
+  /**
+   * Finds the location of a given class file on the file system.
+   * Throws an IOException if the class cannot be found.
+   * <br>
+   * If the class is in an archive (JAR, ZIP), then the returned object
+   * will point to the archive file.
+   * <br>
+   * If the class is in a directory, the base directory will be returned
+   * with the package directory removed.
+   * <br>
+   * The <code>File.isDirectory()</code> method can be used to
+   * determine which is the case.
+   * <br>
+   * @param c    a given class
+   * @return    a File object
+   * @throws IOException
+   */
+  public static File getClassLocation(Class c) throws IOException, FileNotFoundException {
+    if(c==null) {
+      throw new NullPointerException();
+    }
+    
+    String className = c.getName();
+    String resourceName = className.replace('.', '/') + ".class";
+    ClassLoader classLoader = c.getClassLoader();
+    if(classLoader==null) {
+      classLoader = ClassLoader.getSystemClassLoader();
+    }
+    URL url = classLoader.getResource(resourceName);
+    
+    String szUrl = url.toString();
+    if(szUrl.startsWith("jar:file:")) {
+      try {
+        szUrl = szUrl.substring("jar:".length(), szUrl.lastIndexOf("!"));
+        URI uri = new URI(szUrl);
+        return new File(uri);
+      } catch(URISyntaxException e) {
+        throw new IOException(e.toString());
+      }
+    } else if(szUrl.startsWith("file:")) {
+      try {
+        szUrl = szUrl.substring(0, szUrl.length() - resourceName.length());
+        URI uri = new URI(szUrl);
+        return new File(uri);
+      } catch(URISyntaxException e) {
+        throw new IOException(e.toString());
+      }
+    }
+    
+    throw new FileNotFoundException(szUrl);
+  }
+  
+}
+