1 files changed, 109 insertions, 0 deletions
diff --git a/src/com/wilko/jaim/flap/FLAPFrame.java b/src/com/wilko/jaim/flap/FLAPFrame.java
new file mode 100644
index 0000000..2f4a4e2
--- /dev/null
+++ b/src/com/wilko/jaim/flap/FLAPFrame.java
@@ -0,0 +1,109 @@
+/*
+ *   (C) 2002 Paul Wilkinson  wilko@users.sourceforge.net
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+/*
+ * FLAPFrame.java
+ *
+ * Created on 3 May 2002, 14:51
+ */
+
+package com.wilko.jaim.flap;
+
+/**
+ * @author paulw
+ * @version $Revision: 1.4 $
+ */
+public abstract class FLAPFrame {
+
+    public static final int FLAP_FRAME_SIGNON = 1;
+    public static final int FLAP_FRAME_DATA = 2;
+    public static final int FLAP_FRAME_ERROR = 3;
+    public static final int FLAP_FRAME_SIGNOFF = 4;
+    public static final int FLAP_FRAME_KEEP_ALIVE = 5;
+    public static final int FLAP_DATA_OFFSET = 6;
+
+    protected byte[] frame;
+    protected int fLen;
+
+    /**
+     * Creates new FLAPFrame
+     */
+    public FLAPFrame() {
+        initialise();
+    }
+
+    protected void initialise() {
+        frame = new byte[8192];
+        frame[0] = (byte) '*';
+        frame[1] = 0;
+        frame[2] = 0;
+        frame[3] = 0;
+        frame[4] = 0;
+        frame[5] = 0;
+        fLen = 6;
+
+    }
+
+    public int getSequence() {
+        return ((frame[2] & 0xff) * 256 + (frame[3] & 0xff));
+    }
+
+    public void setSequence(int sequence) {
+        frame[2] = (byte) ((sequence / 256) & 0xff);
+        frame[3] = (byte) (sequence & 0xff);
+    }
+
+    public int getLength() {
+        return ((frame[4] & 0xff) * 256 + (frame[5] & 0xff));
+    }
+
+    public void setLength(int length) {
+        frame[4] = (byte) (length / 256);
+        frame[5] = (byte) (length & 0xff);
+        fLen = length + FLAP_DATA_OFFSET;
+    }
+
+    public byte[] getFrameData() {
+        byte[] b = new byte[fLen];
+        System.arraycopy(frame, 0, b, 0, fLen);
+        return (b);
+    }
+
+    protected void setFrameData(byte[] b) {
+        frame = new byte[b.length];
+        fLen = b.length;
+        System.arraycopy(b, 0, frame, 0, b.length);
+    }
+
+    public String toString() {
+        StringBuffer temp = new StringBuffer();
+        for (int i = 0; i < fLen; i++) {
+            int k = frame[i] & 0xff;
+            if (k < 16) {
+                temp.append("0" + Integer.toHexString(k) + " ");
+            } else {
+                temp.append(Integer.toHexString(k) + " ");
+            }
+        }
+        return (temp.toString());
+    }
+
+    public abstract int getFLAPFrameType();
+
+}