NSTException: message format & uid

assira/src/main/java/net/ranides/assira/trace/NSTException.java

@@ -1,34 +1,94 @@
-/*
- * @author Ranides Atterwim <ranides@gmail.com>
- * @copyright Ranides Atterwim
- * @license WTFPL
- * @url http://ranides.net/projects/assira
- */
-package net.ranides.assira.trace;
-
-/**
- *
- * @author Ranides Atterwim <ranides@gmail.com>
- */
-public class NSTException extends RuntimeException {
-
-    public NSTException() {
-    }
-
-    public NSTException(String message) {
-        super(message);
-    }
-
-    public NSTException(String message, Throwable cause) {
-        super(message, cause);
-    }
-
-    public NSTException(Throwable cause) {
-        super(cause);
-    }
-    
-    @Override
-    public Throwable fillInStackTrace() {
-        return this;
-    }
-}
+/*
+ * @author Ranides Atterwim <ranides@gmail.com>
+ * @copyright Ranides Atterwim
+ * @license WTFPL
+ * @url http://ranides.net/projects/assira
+ */
+package net.ranides.assira.trace;
+
+import java.lang.management.ManagementFactory;
+import java.text.MessageFormat;
+import java.util.concurrent.atomic.AtomicInteger;
+import net.ranides.assira.text.StringUtils;
+
+/**
+ *
+ * @author Ranides Atterwim <ranides@gmail.com>
+ */
+public class NSTException extends RuntimeException {
+
+    private static final String EMPTY_TEXT = "";
+    
+    private static final Object[] EMPTY_ARGS = new Object[0];
+    
+    private static final AtomicInteger COUNTER = new AtomicInteger(0);
+    
+    private static final class Li { // NOPMD - lazy init idiom
+        
+        public static final String VMNAME = ManagementFactory.getRuntimeMXBean().getName();
+        
+    }
+    
+    private final String uid;
+    private final String pattern;
+    private final Object[] arguments;
+    
+    public NSTException() {
+        this(EMPTY_TEXT, EMPTY_ARGS);
+    }
+
+    public NSTException(String message) {
+        this(message, EMPTY_ARGS);
+    }
+    
+    public NSTException(String message, Object... arguments) {
+        this.uid = initUID();
+        this.pattern = message;
+        this.arguments = arguments;
+    }
+    
+    public NSTException(Throwable cause) {
+        this(cause, EMPTY_TEXT, EMPTY_ARGS);
+    }
+
+    public NSTException(Throwable cause, String message) {
+        this(cause, message, EMPTY_ARGS);
+    }
+    
+    public NSTException(Throwable cause, String message, Object... arguments) {
+        super(cause);
+        this.uid = initUID();
+        this.pattern = message;
+        this.arguments = arguments;
+    }
+    
+    public String uid() {
+        return uid;
+    }
+    
+    @Override
+    public Throwable fillInStackTrace() {
+        return this;
+    }
+    
+    @Override
+    public String getMessage() {
+        return MessageFormat.format(pattern, arguments); // @todo (assira #0) use ResolvePattern
+    }
+
+    @Override
+    public String getLocalizedMessage() {
+        return getMessage();
+    }
+
+    @Override
+    public String toString() {
+        String s = getClass().getName();
+        String m = getLocalizedMessage();
+        return s + "(" + uid + "): " + (m != null ? m : "");
+    }
+    
+    private static String initUID() {
+        return Li.VMNAME + "@" + COUNTER.incrementAndGet();
+    }
+}