REST API to create flows
Change-Id: I5d001782249c0eab249d7aa857ae465da95b5955
diff --git a/core/common/src/main/java/org/onosproject/codec/impl/EncodeInstructionCodec.java b/core/common/src/main/java/org/onosproject/codec/impl/EncodeInstructionCodec.java
new file mode 100644
index 0000000..7fb56fd
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+++ b/core/common/src/main/java/org/onosproject/codec/impl/EncodeInstructionCodec.java
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+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.codec.impl;
+
+import org.onosproject.codec.CodecContext;
+import org.onosproject.net.OchSignal;
+import org.onosproject.net.flow.instructions.Instruction;
+import org.onosproject.net.flow.instructions.Instructions;
+import org.onosproject.net.flow.instructions.L0ModificationInstruction;
+import org.onosproject.net.flow.instructions.L2ModificationInstruction;
+import org.onosproject.net.flow.instructions.L3ModificationInstruction;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+/**
+ * JSON encoding of Instructions.
+ */
+public final class EncodeInstructionCodec {
+ protected static final Logger log = LoggerFactory.getLogger(EncodeInstructionCodec.class);
+ private final Instruction instruction;
+ private final CodecContext context;
+
+ /**
+ * Creates an instruction object encoder.
+ *
+ * @param instruction instruction to encode
+ * @param context codec context for the encoding
+ */
+ public EncodeInstructionCodec(Instruction instruction, CodecContext context) {
+ this.instruction = instruction;
+ this.context = context;
+ }
+
+
+ /**
+ * Encode an L0 modification instruction.
+ *
+ * @param result json node that the instruction attributes are added to
+ */
+ private void encodeL0(ObjectNode result) {
+ L0ModificationInstruction instruction =
+ (L0ModificationInstruction) this.instruction;
+ result.put(InstructionCodec.SUBTYPE, instruction.subtype().name());
+
+ switch (instruction.subtype()) {
+ case LAMBDA:
+ final L0ModificationInstruction.ModLambdaInstruction modLambdaInstruction =
+ (L0ModificationInstruction.ModLambdaInstruction) instruction;
+ result.put(InstructionCodec.LAMBDA, modLambdaInstruction.lambda());
+ break;
+
+ case OCH:
+ L0ModificationInstruction.ModOchSignalInstruction ochSignalInstruction =
+ (L0ModificationInstruction.ModOchSignalInstruction) instruction;
+ OchSignal ochSignal = ochSignalInstruction.lambda();
+ result.put(InstructionCodec.GRID_TYPE, ochSignal.gridType().name());
+ result.put(InstructionCodec.CHANNEL_SPACING, ochSignal.channelSpacing().name());
+ result.put(InstructionCodec.SPACING_MULTIPLIER, ochSignal.spacingMultiplier());
+ result.put(InstructionCodec.SLOT_GRANULARITY, ochSignal.slotGranularity());
+ break;
+
+ default:
+ log.info("Cannot convert L0 subtype of {}", instruction.subtype());
+ }
+ }
+
+ /**
+ * Encode an L2 modification instruction.
+ *
+ * @param result json node that the instruction attributes are added to
+ */
+ private void encodeL2(ObjectNode result) {
+ L2ModificationInstruction instruction =
+ (L2ModificationInstruction) this.instruction;
+ result.put(InstructionCodec.SUBTYPE, instruction.subtype().name());
+
+ switch (instruction.subtype()) {
+ case ETH_SRC:
+ case ETH_DST:
+ final L2ModificationInstruction.ModEtherInstruction modEtherInstruction =
+ (L2ModificationInstruction.ModEtherInstruction) instruction;
+ result.put(InstructionCodec.MAC, modEtherInstruction.mac().toString());
+ break;
+
+ case VLAN_ID:
+ final L2ModificationInstruction.ModVlanIdInstruction modVlanIdInstruction =
+ (L2ModificationInstruction.ModVlanIdInstruction) instruction;
+ result.put(InstructionCodec.VLAN_ID, modVlanIdInstruction.vlanId().toShort());
+ break;
+
+ case VLAN_PCP:
+ final L2ModificationInstruction.ModVlanPcpInstruction modVlanPcpInstruction =
+ (L2ModificationInstruction.ModVlanPcpInstruction) instruction;
+ result.put(InstructionCodec.VLAN_PCP, modVlanPcpInstruction.vlanPcp());
+ break;
+
+ case MPLS_LABEL:
+ final L2ModificationInstruction.ModMplsLabelInstruction modMplsLabelInstruction =
+ (L2ModificationInstruction.ModMplsLabelInstruction) instruction;
+ result.put(InstructionCodec.MPLS_LABEL, modMplsLabelInstruction.label());
+ break;
+
+ case MPLS_PUSH:
+ final L2ModificationInstruction.PushHeaderInstructions pushHeaderInstructions =
+ (L2ModificationInstruction.PushHeaderInstructions) instruction;
+
+ result.put(InstructionCodec.ETHERNET_TYPE, pushHeaderInstructions.ethernetType());
+ break;
+
+ default:
+ log.info("Cannot convert L2 subtype of {}", instruction.subtype());
+ break;
+ }
+ }
+
+ /**
+ * Encode an L3 modification instruction.
+ *
+ * @param result json node that the instruction attributes are added to
+ */
+ private void encodeL3(ObjectNode result) {
+ L3ModificationInstruction instruction =
+ (L3ModificationInstruction) this.instruction;
+ result.put(InstructionCodec.SUBTYPE, instruction.subtype().name());
+ switch (instruction.subtype()) {
+ case IPV4_SRC:
+ case IPV4_DST:
+ case IPV6_SRC:
+ case IPV6_DST:
+ final L3ModificationInstruction.ModIPInstruction modIPInstruction =
+ (L3ModificationInstruction.ModIPInstruction) instruction;
+ result.put(InstructionCodec.IP, modIPInstruction.ip().toString());
+ break;
+
+ case IPV6_FLABEL:
+ final L3ModificationInstruction.ModIPv6FlowLabelInstruction
+ modFlowLabelInstruction =
+ (L3ModificationInstruction.ModIPv6FlowLabelInstruction) instruction;
+ result.put(InstructionCodec.FLOW_LABEL, modFlowLabelInstruction.flowLabel());
+ break;
+
+ default:
+ log.info("Cannot convert L3 subtype of {}", instruction.subtype());
+ break;
+ }
+ }
+
+ /**
+ * Encodes the given instruction into JSON.
+ *
+ * @return JSON object node representing the instruction
+ */
+ public ObjectNode encode() {
+ final ObjectNode result = context.mapper().createObjectNode()
+ .put(InstructionCodec.TYPE, instruction.type().toString());
+
+ switch (instruction.type()) {
+ case OUTPUT:
+ final Instructions.OutputInstruction outputInstruction =
+ (Instructions.OutputInstruction) instruction;
+ result.put(InstructionCodec.PORT, outputInstruction.port().toLong());
+ break;
+
+ case DROP:
+ break;
+
+ case L0MODIFICATION:
+ encodeL0(result);
+ break;
+
+ case L2MODIFICATION:
+ encodeL2(result);
+ break;
+
+ case L3MODIFICATION:
+ encodeL3(result);
+ break;
+
+ default:
+ log.info("Cannot convert instruction type of {}", instruction.type());
+ break;
+ }
+ return result;
+ }
+
+}