Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics / src / org / simantics / ConsoleUserAgent.java

diff --git a/bundles/org.simantics/src/org/simantics/ConsoleUserAgent.java b/bundles/org.simantics/src/org/simantics/ConsoleUserAgent.java
new file mode 100644 (file)
index 0000000..f06e1df
--- /dev/null
+++ b/bundles/org.simantics/src/org/simantics/ConsoleUserAgent.java
@@ -0,0 +1,56 @@
+/*******************************************************************************\r
+ * Copyright (c) 2011 Association for Decentralized Information Management in\r
+ * 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;\r
+\r
+import java.io.IOException;\r
+\r
+import org.simantics.databoard.util.binary.InputStreamReadable;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class ConsoleUserAgent implements PlatformUserAgent {\r
+\r
+    @Override\r
+    public int showPrompt(String title, String message, String[] options, int defaultChoice) {\r
+        try {\r
+            boolean ok = false;\r
+            while (!ok) {\r
+                System.out.println("== " + title + " ==\n");\r
+                System.out.println(message + "\n");\r
+                for (int i = 0; i < options.length; ++i)\r
+                    System.out.println("[" + i + "] " + options[i]);\r
+                System.out.print("Select [");\r
+                for (int i = 0; i < options.length; ++i)\r
+                    System.out.print(i);\r
+                System.out.println("] (default = " + defaultChoice + ") ? ");\r
+\r
+                InputStreamReadable rdr  = new InputStreamReadable(System.in, 1);\r
+                String str = rdr.readLine();\r
+                //System.out.println("READ: '" + str + "'");\r
+                try {\r
+                    int choice = Integer.parseInt(str);\r
+                    if (choice >= 0 && choice < options.length) {\r
+                        ok = true;\r
+                        return choice;\r
+                    }\r
+                } catch (NumberFormatException e) {\r
+                    // Just repeat the question if input is unintelligible\r
+                }\r
+            }\r
+        } catch (IOException e) {\r
+            e.printStackTrace();\r
+        }\r
+        return defaultChoice;\r
+    }\r
+\r
+}\r