Create char delimiter frame decoder

1 files changed, 42 insertions, 0 deletions

diff --git a/src/org/traccar/CharacterDelimiterFrameDecoder.java b/src/org/traccar/CharacterDelimiterFrameDecoder.java
new file mode 100644
index 000000000..9f4e29a6f
--- /dev/null
+++ b/src/org/traccar/CharacterDelimiterFrameDecoder.java
@@ -0,0 +1,42 @@
+package org.traccar;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.jboss.netty.handler.codec.frame.DelimiterBasedFrameDecoder;
+
+public class CharacterDelimiterFrameDecoder extends DelimiterBasedFrameDecoder {
+
+    private static ChannelBuffer createDelimiter(char delimiter) {
+        byte buf[] = { (byte) delimiter };
+        return ChannelBuffers.wrappedBuffer(buf);
+    }
+
+    private static ChannelBuffer createDelimiter(String delimiter) {
+        byte buf[] = new byte[delimiter.length()];
+        for (int i = 0; i < delimiter.length(); i++) {
+            buf[i] = (byte) delimiter.charAt(i);
+        }
+        return ChannelBuffers.wrappedBuffer(buf);
+    }
+
+    private static ChannelBuffer[] convertDelimiters(String[] delimiters) {
+        ChannelBuffer result[] = new ChannelBuffer[delimiters.length];
+        for (int i = 0; i < delimiters.length; i++) {
+            result[i] = createDelimiter(delimiters[i]);
+        }
+        return result;
+    }
+
+    public CharacterDelimiterFrameDecoder(int maxFrameLength, char delimiter) {
+        super(maxFrameLength, createDelimiter(delimiter));
+    }
+
+    public CharacterDelimiterFrameDecoder(int maxFrameLength, String delimiter) {
+        super(maxFrameLength, createDelimiter(delimiter));
+    }
+
+    public CharacterDelimiterFrameDecoder(int maxFrameLength, String... delimiters) {
+        super(maxFrameLength, convertDelimiters(delimiters));
+    }
+
+}