[incubator-plc4x] branch master updated: - Added some comment to the getHeaderLenght method.

[cd...@apache.org]

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cdutz pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-plc4x.git


The following commit(s) were added to refs/heads/master by this push:
     new 4c6f9bd  - Added some comment to the getHeaderLenght method.
4c6f9bd is described below

commit 4c6f9bdf3b064febccb548f1b64cbf2b884798ad
Author: Christofer Dutz <ch...@c-ware.de>
AuthorDate: Sat Dec 30 14:47:34 2017 +0100

    - Added some comment to the getHeaderLenght method.
---
 .../java/org/apache/plc4x/java/isotp/netty/IsoTPProtocol.java     | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/plc4j/protocols/s7/src/main/java/org/apache/plc4x/java/isotp/netty/IsoTPProtocol.java b/plc4j/protocols/s7/src/main/java/org/apache/plc4x/java/isotp/netty/IsoTPProtocol.java
index 2271312..f10cea9 100644
--- a/plc4j/protocols/s7/src/main/java/org/apache/plc4x/java/isotp/netty/IsoTPProtocol.java
+++ b/plc4j/protocols/s7/src/main/java/org/apache/plc4x/java/isotp/netty/IsoTPProtocol.java
@@ -254,6 +254,14 @@ public class IsoTPProtocol extends MessageToMessageCodec<IsoOnTcpMessage, Tpdu>
         }
     }
 
+    /**
+     * Return the length of the entire header in bytes (including the size field itself)
+     * This is a sum of the fixed size header defined for the given tpdu type and the
+     * lengths of all parameters.
+     *
+     * @param tpdu Tpdu to get the header length for
+     * @return length of the iso tp header
+     */
     private short getHeaderLength(Tpdu tpdu) {
         if (tpdu != null) {
             short headerLength = 0;

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