X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=openflow-protocol-impl%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fopenflowjava%2Fprotocol%2Fimpl%2Futil%2FInstructionsDeserializer.java;fp=openflow-protocol-impl%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fopenflowjava%2Fprotocol%2Fimpl%2Futil%2FInstructionsDeserializer.java;h=a8cb2803b25a5a37a8b92ffc927e28df8f8425e4;hb=74c40e7b03d3760a14ce2724d2b8c068f08b121c;hp=696e3ba2f4860331e75b228b905d475c6bd82da4;hpb=6f617b9dee9173581e8501dcd3c2f365f9a04f79;p=openflowjava.git

diff --git a/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/util/InstructionsDeserializer.java b/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/util/InstructionsDeserializer.java
index 696e3ba2..a8cb2803 100644
--- a/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/util/InstructionsDeserializer.java
+++ b/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/util/InstructionsDeserializer.java
@@ -38,7 +38,7 @@ import io.netty.buffer.ByteBuf;
  * @author michal.polkorab
  * @author timotej.kubas
  */
-public class InstructionsDeserializer {
+public abstract class InstructionsDeserializer {
     
     private static final byte WRITE_APPLY_CLEAR_ACTION_LENGTH = 8;
     private static final byte EXPERIMENTER_HEADER_LENGTH = 8;
@@ -107,6 +107,52 @@ public class InstructionsDeserializer {
         return instructions;
     }
 
+    /**
+     * Creates instruction ids (instructions without values)
+     * @param input
+     * @param length
+     * @return list of ofp_instruction without values
+     */
+    public static List<Instructions> createInstructionIds(ByteBuf input, int length) {
+        List<Instructions> instructions = new ArrayList<>();
+        if (input.readableBytes() != 0) {
+            int lengthOfInstructions = length;
+            while (lengthOfInstructions > 0) {
+                InstructionsBuilder builder = new InstructionsBuilder();
+                int type = input.readUnsignedShort();
+                int instructionLength = input.readUnsignedShort();
+                lengthOfInstructions -= instructionLength;
+                switch (type) {
+                case 1:
+                    builder.setType(GotoTable.class);
+                    break;
+                case 2:
+                    builder.setType(WriteMetadata.class);
+                    break;
+                case 3:
+                    builder.setType(WriteActions.class);
+                    break;
+                case 4:
+                    builder.setType(ApplyActions.class);
+                    break;
+                case 5:
+                    builder.setType(ClearActions.class);
+                    break;
+                case 6:
+                    builder.setType(Meter.class);
+                    break;
+                case 65535:
+                    builder.setType(Experimenter.class);
+                    break;
+                default:
+                    break;
+                }
+                instructions.add(builder.build());
+            }
+        }
+        return instructions;
+    }
+
     private static void createGotoTableInstruction(InstructionsBuilder builder,
             ByteBuf input) {
         builder.setType(GotoTable.class);