Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.impl / src / org / simantics / db / impl / GraphPrinter.java

diff --git a/bundles/org.simantics.db.impl/src/org/simantics/db/impl/GraphPrinter.java b/bundles/org.simantics.db.impl/src/org/simantics/db/impl/GraphPrinter.java
new file mode 100644 (file)
index 0000000..f679c9f
--- /dev/null
+++ b/bundles/org.simantics.db.impl/src/org/simantics/db/impl/GraphPrinter.java
@@ -0,0 +1,102 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.db.impl;\r
+\r
+import java.io.DataOutput;\r
+import java.io.DataOutputStream;\r
+import java.io.FileNotFoundException;\r
+import java.io.FileOutputStream;\r
+import java.io.IOException;\r
+\r
+public class GraphPrinter {\r
+\r
+    public static String LOG_FILE = "d:\\graph.dot";\r
+    \r
+    public static boolean LOG = true;\r
+\r
+    static Object loggerCreationLock = new Object();\r
+    static GraphPrinter logger = null; \r
+\r
+    DataOutput log;\r
+\r
+    public GraphPrinter() {\r
+        if(LOG) {\r
+            try {\r
+                FileOutputStream stream = new FileOutputStream(LOG_FILE);\r
+                log = new DataOutputStream(stream);\r
+            } catch (FileNotFoundException e) {\r
+                e.printStackTrace();\r
+            }\r
+        }\r
+    }\r
+\r
+    public static GraphPrinter getInstance() {\r
+        if(logger == null) {\r
+            synchronized (loggerCreationLock) {\r
+                if(logger == null)\r
+                    logger = new GraphPrinter();       \r
+            }                   \r
+        }\r
+        return logger;\r
+    }\r
+\r
+    public void begin(String filename) {\r
+        if(LOG) {\r
+            try {\r
+                FileOutputStream stream = new FileOutputStream(LOG_FILE);\r
+                log = new DataOutputStream(stream);\r
+                try {\r
+                    synchronized(log) {\r
+                        log.writeBytes("digraph test {\n");\r
+                    }\r
+                } catch(IOException e) {\r
+                    e.printStackTrace();\r
+                }\r
+            } catch (FileNotFoundException e) {\r
+                e.printStackTrace();\r
+            }\r
+        }\r
+    }\r
+\r
+    public void finish() {\r
+        if(LOG) {\r
+            try {\r
+                synchronized(log) {\r
+                    log.writeBytes("}\n");\r
+                }\r
+            } catch(IOException e) {\r
+                e.printStackTrace();\r
+            }\r
+            log = null;\r
+        }\r
+    }\r
+\r
+    private String escape(String input) {\r
+        return input.replace("[", "_").replace("]", "_").replace(":", "_").replace("/", "_").replace("@", "_").replace(".", "_").replace(" ", "_").replace("#", "_").replace("-", "_");\r
+    }\r
+    \r
+    public void log(String start, String end) {\r
+\r
+        try {\r
+            synchronized(log) {\r
+                log.writeBytes(escape(start.toString()));\r
+                log.writeBytes(" -> ");\r
+                log.writeBytes(escape(end.toString()));\r
+                log.writeBytes("\n");\r
+            }\r
+        } catch(IOException e) {\r
+            e.printStackTrace();\r
+        }\r
+        \r
+    }\r
+    \r
+}\r