X-Git-Url: http://www2.svjatoslav.eu/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Feu%2Fsvjatoslav%2Fcommons%2Fgui%2Fdialog%2FExceptionDialog.java;h=32974f17d00204d5121f7ce616dce2034e962d1f;hb=4620f886089bd4d16a4affa46e05dd4d4688223b;hp=24ba80e87f0e7376f0a74f4ce9cc76bccd41597e;hpb=846af2def5b489670668b978e4ea703c8dfb22b6;p=svjatoslav_commons.git

diff --git a/src/main/java/eu/svjatoslav/commons/gui/dialog/ExceptionDialog.java b/src/main/java/eu/svjatoslav/commons/gui/dialog/ExceptionDialog.java
index 24ba80e..32974f1 100755
--- a/src/main/java/eu/svjatoslav/commons/gui/dialog/ExceptionDialog.java
+++ b/src/main/java/eu/svjatoslav/commons/gui/dialog/ExceptionDialog.java
@@ -1,109 +1,90 @@
 /*
- * Svjatoslav Commons - shared library of common functionality.
- * Copyright ©2012-2014, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 3 of the GNU Lesser General Public License
- * or later as published by the Free Software Foundation.
+ * Svjatoslav Commons - shared library of common functionality. Author: Svjatoslav Agejenko.
+ * This project is released under Creative Commons Zero (CC0) license.
  */
-
 package eu.svjatoslav.commons.gui.dialog;
 
-import java.awt.BorderLayout;
-import java.awt.TextArea;
+import javax.swing.*;
+import java.awt.*;
 
-import javax.swing.BoxLayout;
-import javax.swing.JFrame;
-import javax.swing.JLabel;
-import javax.swing.JPanel;
+import static javax.swing.BoxLayout.Y_AXIS;
 
 public class ExceptionDialog {
 
-	/**
-	 * This method is for testing
-	 * 
-	 * @param args
-	 *            commandline arguments
-	 */
-	public static void main(final String[] args) {
-
-		final Throwable cause = new Throwable("details.....");
-
-		final Exception exception = new Exception("test", cause);
-
-		new ExceptionDialog(exception);
-	}
-
-	public ExceptionDialog(final Exception exception) {
-		showException(exception);
-	}
-
-	/**
-	 * @param exception
-	 *            exception to show
-	 */
-	public void showException(final Exception exception) {
-
-		final JFrame frame = new JFrame("Exception occured!");
-		final JPanel contentPanel = new JPanel(new BorderLayout());
-		final Throwable cause = exception.getCause();
-
-		// build top panel
-		{
-			final JPanel topPanel = new JPanel();
-			topPanel.setLayout(new BoxLayout(topPanel, BoxLayout.Y_AXIS));
-
-			// add exception type
-			final JLabel exceptionType = new JLabel("Exception type: "
-					+ exception.getClass().getCanonicalName());
-			topPanel.add(exceptionType);
-
-			// add error message
-			final JLabel message = new JLabel("Error message: "
-					+ exception.getMessage());
-			topPanel.add(message);
-
-			// add cause message
-			if (cause != null)
-				if (cause.getMessage() != null) {
-					final JLabel message2 = new JLabel("Cause: "
-							+ cause.getMessage());
-					topPanel.add(message2);
-				}
-
-			contentPanel.add(topPanel, BorderLayout.NORTH);
-		}
-
-		// build stack trace view
-		{
-			final StringBuffer buffer = new StringBuffer();
-
-			// if cause is available, show original stack trace
-			if (cause != null) {
-				buffer.append("Stack trace:\n");
-				final StackTraceElement[] stackTrace = cause.getStackTrace();
-				for (final StackTraceElement stackTraceElement : stackTrace)
-					buffer.append(stackTraceElement.toString() + "\n");
-			} else {
-				// otherwise show at least current stack trace
-				buffer.append("Stack trace from original cause is not available.\nShowing current stack trace instead:\n");
-
-				for (final StackTraceElement stackTraceElement : new Exception(
-						"Stack trace").getStackTrace())
-					buffer.append(stackTraceElement.toString() + "\n");
-			}
-
-			final TextArea textArea = new TextArea(buffer.toString());
-			contentPanel.add(textArea, BorderLayout.CENTER);
-		}
-
-		// finalize frame
-		frame.getContentPane().add(contentPanel);
-		frame.setSize(800, 600);
-		frame.setVisible(true);
-
-		// Thread.dumpStack();
-
-	}
+    public ExceptionDialog(final Exception exception) {
+        showException(exception);
+    }
+
+    /**
+     * This method is for testing
+     *
+     * @param args commandline arguments
+     */
+    public static void main(final String[] args) {
+
+        final Throwable cause = new Throwable("details.....");
+
+        final Exception exception = new Exception("test", cause);
+
+        new ExceptionDialog(exception);
+    }
+
+    /**
+     * @param exception exception to show
+     */
+    public void showException(final Exception exception) {
+        final JPanel contentPanel = new JPanel(new BorderLayout());
+        contentPanel.add(getTopPanel(exception), BorderLayout.NORTH);
+        contentPanel.add(getStackTraceView(exception.getCause()), BorderLayout.CENTER);
+
+        final JFrame frame = new JFrame("Exception occurred!");
+        frame.getContentPane().add(contentPanel);
+        frame.setSize(800, 600);
+        frame.setVisible(true);
+        frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
+        frame.setLocationRelativeTo(null); // center frame on screen
+    }
+
+    private TextArea getStackTraceView(Throwable cause) {
+        final StringBuilder buffer = new StringBuilder();
+
+        if (cause != null) {
+            // if cause is available, show original stack trace
+            buffer.append("Stack trace:\n");
+            final StackTraceElement[] stackTrace = cause.getStackTrace();
+            enlistStackTraceElements(buffer, stackTrace);
+        } else {
+            // otherwise show at least current stack trace
+            buffer.append("Stack trace from original cause is not available.\n" +
+                    "Showing current stack trace instead:\n");
+            enlistStackTraceElements(buffer, new Exception("Stack trace").getStackTrace());
+        }
+
+        return new TextArea(buffer.toString());
+    }
+
+    private void enlistStackTraceElements(StringBuilder buffer, StackTraceElement[] stackTrace) {
+        for (final StackTraceElement stackTraceElement : stackTrace)
+            buffer.append(stackTraceElement.toString()).append("\n");
+    }
+
+    private JPanel getTopPanel(Exception exception) {
+
+        final JPanel topPanel = new JPanel();
+        topPanel.setLayout(new BoxLayout(topPanel, Y_AXIS));
+
+        // add exception type
+        topPanel.add(
+                new JLabel("Exception type: " + exception.getClass().getCanonicalName()));
+
+        // add error message
+        topPanel.add(new JLabel("Error message: " + exception.getMessage()));
+
+        // add cause message
+        Throwable cause = exception.getCause();
+        if (cause != null && cause.getMessage() != null)
+            topPanel.add(new JLabel("Cause: " + cause.getMessage()));
+        return topPanel;
+    }
 
 }