X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.diagram%2Fsrc%2Forg%2Fsimantics%2Fdiagram%2Finternal%2Ftiming%2FTiming.java;fp=bundles%2Forg.simantics.diagram%2Fsrc%2Forg%2Fsimantics%2Fdiagram%2Finternal%2Ftiming%2FTiming.java;h=59af6b86393f387b8957bd6d0a04be829b030d38;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.diagram/src/org/simantics/diagram/internal/timing/Timing.java b/bundles/org.simantics.diagram/src/org/simantics/diagram/internal/timing/Timing.java
new file mode 100644
index 000000000..59af6b863
--- /dev/null
+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/internal/timing/Timing.java
@@ -0,0 +1,117 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.diagram.internal.timing;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.diagram.internal.DebugPolicy;
+import org.simantics.diagram.synchronization.ErrorHandler;
+
+/**
+ * @author Tuukka Lehtonen
+ */
+public final class Timing {
+
+    private static Method BEGIN_METHOD;
+    private static Method END_METHOD;
+
+    static {
+        // Try to get ThreadLog, if possible.
+        try {
+            Class<?> logClass = Class.forName("org.simantics.threadlog.ThreadLog");
+            Class<?> taskClass = Class.forName("org.simantics.threadlog.Task");
+            Method begin = logClass.getMethod("BEGIN", String.class);
+            Method end = taskClass.getMethod("end");
+
+            BEGIN_METHOD = begin;
+            END_METHOD = end;
+        } catch (ClassNotFoundException e) {
+        } catch (NoSuchMethodException e) {
+        } catch (SecurityException e) {
+            // No dice, just don't do timing then.
+        }
+    }
+
+    public static void timed(String label, GTask r) throws DatabaseException {
+        Object t = Timing.BEGIN(label);
+        try {
+            long start = 0, end = 0;
+            if (DebugPolicy.PERFORM_TIMING)
+                start = System.nanoTime();
+            r.run();
+            if (DebugPolicy.PERFORM_TIMING) {
+                end = System.nanoTime();
+                System.out.println("TIMED " + ((end-start)*1e-6) + "ms for " + label);
+            }
+        } finally {
+            Timing.END(t);
+        }
+    }
+
+    public static void safeTimed(ErrorHandler errorHandler, String label, GTask r) {
+        Object t = Timing.BEGIN(label);
+        try {
+            long start = 0, end = 0;
+            if (DebugPolicy.PERFORM_TIMING)
+                start = System.nanoTime();
+            try {
+                r.run();
+            } catch (DatabaseException e) {
+                errorHandler.error(e.getMessage(), e);
+            }
+            if (DebugPolicy.PERFORM_TIMING) {
+                end = System.nanoTime();
+                System.out.println("TIMED " + ((end-start)*1e-6) + "ms for " + label);
+            }
+        } finally {
+            Timing.END(t);
+        }
+    }
+
+    public static Object BEGIN(String name) {
+        if (DebugPolicy.PERFORM_TIMING) {
+            //return ThreadLog.BEGIN(name);
+            if (BEGIN_METHOD != null) {
+                try {
+                    return BEGIN_METHOD.invoke(null, name);
+                } catch (IllegalArgumentException e) {
+                    e.printStackTrace();
+                } catch (IllegalAccessException e) {
+                    e.printStackTrace();
+                } catch (InvocationTargetException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+        return null;
+    }
+
+    public static void END(Object task) {
+        if (DebugPolicy.PERFORM_TIMING) {
+            //((Task) task).end();
+            if (task != null) {
+                try {
+                    END_METHOD.invoke(task);
+                } catch (IllegalArgumentException e) {
+                    e.printStackTrace();
+                } catch (IllegalAccessException e) {
+                    e.printStackTrace();
+                } catch (InvocationTargetException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+}