Update

1 files changed, 69 insertions, 0 deletions

diff --git a/BJC-Utils2/src/main/java/bjc/utils/cli/fds/FDS.java b/BJC-Utils2/src/main/java/bjc/utils/cli/fds/FDS.java
new file mode 100644
index 0000000..6dc0337
--- /dev/null
+++ b/BJC-Utils2/src/main/java/bjc/utils/cli/fds/FDS.java
@@ -0,0 +1,69 @@
+package bjc.utils.cli.fds;
+
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.io.PrintStream;
+import bjc.utils.ioutils.Block;
+import bjc.utils.ioutils.BlockReader;
+
+/**
+ * Runs a FDS (FDiskScript) interface.
+ * 
+ * This is a rudimentary console interface inspired heavily by FDisk's interface
+ * style.
+ * 
+ * Commands are denoted by a single character, but can invoke submodes.
+ * 
+ * @author bjculkin
+ *
+ */
+public class FDS {
+	/**
+	 * Run a provided FDS mode until it is exited or there is no more input.
+	 * 
+	 * @param comin
+	 *                The command input source for the FDS mode.
+	 * 
+	 * @param datain
+	 *                The data input source for the FDS mode.
+	 * 
+	 * @param out
+	 *                The output source for the FDS mode.
+	 * 
+	 * @param initialMode
+	 *                The mode to start in.
+	 * 
+	 * @param initialState
+	 *                The initial state for the mode.
+	 * 
+	 * @return The final state of the mode.
+	 * 
+	 * @throws FDSException
+	 *                 If something went wrong during mode execution.
+	 */
+	public static <S> S runFDS(InputStream comin, InputStream datain, OutputStream out, FDSMode<S> initialMode,
+			S initialState) throws FDSException {
+		PrintStream printer = new PrintStream(out);
+
+		try (BlockReader blockSource = new BlockReader("\\R", new InputStreamReader(comin))) {
+			printer.print("Enter a command (m for help): ");
+
+			while (blockSource.hasNext()) {
+				Block comBlock = blockSource.next();
+
+				String comString = comBlock.contents.trim();
+				
+				char comChar = comString.charAt(0);
+				
+				printer.println(String.format("\nRecieved command '%s'\n", comChar));
+
+				printer.print("Enter a command (m for help): ");
+			}
+		} catch (Exception ex) {
+			throw new FDSException("Unexpected I/O error", ex);
+		}
+
+		return initialState;
+	}
+}