These new files are really patches to the upstream onos project.

Change-Id: I58af837fe5f18d8c3c560a268415279079954edd
Signed-off-by: Ashlee Young <ashlee@onosfw.com>

7 files changed, 1194 insertions, 0 deletions

diff --git a/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/DefaultFlowClassifier.java b/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/DefaultFlowClassifier.java
new file mode 100644
index 00000000..7e06f332
--- /dev/null
+++ b/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/DefaultFlowClassifier.java
@@ -0,0 +1,414 @@
+/*
+ * 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.vtnrsc.sfc;
+
+import java.util.Objects;
+
+import org.onlab.packet.EthType.EtherType;
+import org.onlab.packet.IpPrefix;
+import org.onosproject.vtnrsc.TenantId;
+import org.onosproject.vtnrsc.VirtualPortId;
+
+import com.google.common.base.MoreObjects;
+import static com.google.common.base.Preconditions.checkNotNull;
+/**
+ * Provides Default flow classifier.
+ */
+public final class DefaultFlowClassifier implements FlowClassifier {
+
+    private final FlowClassifierId flowClassifierId;
+    private final TenantId tenantId;
+    private final String name;
+    private final String description;
+    private final EtherType etherType;
+    private final String protocol;
+    private final int minSrcPortRange;
+    private final int maxSrcPortRange;
+    private final int minDstPortRange;
+    private final int maxDstPortRange;
+    private final IpPrefix srcIpPrefix;
+    private final IpPrefix dstIpPrefix;
+    private final VirtualPortId srcPort;
+    private final VirtualPortId dstPort;
+    private static final int NULL_PORT = 0;
+
+    /**
+     * Constructor to create default flow classifier.
+     *
+     * @param flowClassifierId      flow classifier Id
+     * @param tenantId              Tenant ID
+     * @param name                  flow classifier name
+     * @param description           flow classifier description
+     * @param etherType             etherType
+     * @param protocol              IP protocol
+     * @param minSrcPortRange       Minimum Source port range
+     * @param maxSrcPortRange       Maximum Source port range
+     * @param minDstPortRange       Minimum destination port range
+     * @param maxDstPortRange       Maximum destination port range
+     * @param srcIpPrefix           Source IP prefix
+     * @param dstIpPrefix           destination IP prefix
+     * @param srcPort               Source VirtualPort
+     * @param dstPort               destination VirtualPort
+     */
+    private DefaultFlowClassifier(FlowClassifierId flowClassifierId, TenantId tenantId, String name,
+            String description, EtherType etherType, String protocol, int minSrcPortRange, int maxSrcPortRange,
+            int minDstPortRange, int maxDstPortRange, IpPrefix srcIpPrefix, IpPrefix dstIpPrefix,
+            VirtualPortId srcPort, VirtualPortId dstPort) {
+        this.flowClassifierId = flowClassifierId;
+        this.tenantId = tenantId;
+        this.name = name;
+        this.description = description;
+        this.etherType = etherType;
+        this.protocol = protocol;
+        this.minSrcPortRange = minSrcPortRange;
+        this.maxSrcPortRange = maxSrcPortRange;
+        this.minDstPortRange = minDstPortRange;
+        this.maxDstPortRange = maxDstPortRange;
+        this.srcIpPrefix = srcIpPrefix;
+        this.dstIpPrefix = dstIpPrefix;
+        this.srcPort = srcPort;
+        this.dstPort = dstPort;
+    }
+
+    @Override
+    public FlowClassifierId flowClassifierId() {
+        return flowClassifierId;
+    }
+
+    @Override
+    public TenantId tenantId() {
+        return tenantId;
+    }
+
+    @Override
+    public String flowclassifierName() {
+        return name;
+    }
+
+    @Override
+    public String flowClassifierDescription() {
+        return description;
+    }
+
+    @Override
+    public EtherType etherType() {
+        return etherType;
+    }
+
+    @Override
+    public String ipProtocol() {
+        return protocol;
+    }
+
+    @Override
+    public int minSrcPortRange() {
+        return minSrcPortRange;
+    }
+
+    @Override
+    public int maxSrcPortRange() {
+        return maxSrcPortRange;
+    }
+
+    @Override
+    public int minDstPortRange() {
+        return minDstPortRange;
+    }
+
+    @Override
+    public int maxDstPortRange() {
+        return maxDstPortRange;
+    }
+
+    @Override
+    public IpPrefix srcIpPrefix() {
+        return srcIpPrefix;
+    }
+
+    @Override
+    public IpPrefix dstIpPrefix() {
+        return dstIpPrefix;
+    }
+
+    @Override
+    public VirtualPortId srcVirtualPort() {
+        return srcPort;
+    }
+
+    @Override
+    public VirtualPortId dstVirtualPort() {
+        return dstPort;
+    }
+
+    /**
+     * Builder class for constructing Flow classifier.
+     */
+    public static class Builder implements FlowClassifier.Builder {
+
+        private FlowClassifierId flowClassifierId;
+        private TenantId tenantId;
+        private String name;
+        private boolean isFlowClassifierNameSet = false;
+        private String description;
+        private boolean isFlowClassifierDescriptionSet = false;
+        private EtherType etherType;
+        private boolean isEtherTypeSet = false;
+        private String protocol;
+        private boolean isProtocolSet = false;
+        private int minSrcPortRange;
+        private boolean isMinSrcPortRangeSet = false;
+        private int maxSrcPortRange;
+        private boolean isMaxSrcPortRangeSet = false;
+        private int minDstPortRange;
+        private boolean isMinDstPortRangeSet = false;
+        private int maxDstPortRange;
+        private boolean isMaxDstPortRangeSet = false;
+        private IpPrefix srcIpPrefix;
+        private boolean isSrcIpPrefixSet = false;
+        private IpPrefix dstIpPrefix;
+        private boolean isDstIpPrefixSet = false;
+        private VirtualPortId srcPort;
+        private boolean isSrcPortSet = false;
+        private VirtualPortId dstPort;
+        private boolean isDstPortSet = false;
+
+        @Override
+        public FlowClassifier build() {
+
+            checkNotNull(flowClassifierId, "FlowClassifier id can not be null.");
+            checkNotNull(tenantId, "Tenant id can not be null.");
+            String name = null;
+            String description = null;
+            EtherType etherType = null;
+            String protocol = null;
+            int minSrcPortRange = NULL_PORT;
+            int maxSrcPortRange = NULL_PORT;
+            int minDstPortRange = NULL_PORT;
+            int maxDstPortRange = NULL_PORT;
+            IpPrefix srcIpPrefix = null;
+            IpPrefix dstIpPrefix = null;
+            VirtualPortId srcPort = null;
+            VirtualPortId dstPort = null;
+
+            if (isFlowClassifierNameSet) {
+                name = this.name;
+            }
+            if (isFlowClassifierDescriptionSet) {
+                description = this.description;
+            }
+            if (isEtherTypeSet) {
+                etherType = this.etherType;
+            }
+            if (isProtocolSet) {
+                protocol = this.protocol;
+            }
+            if (isMinSrcPortRangeSet) {
+                minSrcPortRange = this.minSrcPortRange;
+            }
+            if (isMaxSrcPortRangeSet) {
+                maxSrcPortRange = this.maxSrcPortRange;
+            }
+            if (isMinDstPortRangeSet) {
+                minDstPortRange = this.minDstPortRange;
+            }
+            if (isMaxDstPortRangeSet) {
+                maxDstPortRange = this.maxDstPortRange;
+            }
+            if (isSrcIpPrefixSet) {
+                srcIpPrefix = this.srcIpPrefix;
+            }
+            if (isDstIpPrefixSet) {
+                dstIpPrefix = this.dstIpPrefix;
+            }
+            if (isSrcPortSet) {
+                srcPort = this.srcPort;
+            }
+            if (isDstPortSet) {
+                dstPort = this.dstPort;
+            }
+
+            return new DefaultFlowClassifier(flowClassifierId, tenantId, name, description, etherType, protocol,
+                    minSrcPortRange, maxSrcPortRange, minDstPortRange, maxDstPortRange, srcIpPrefix, dstIpPrefix,
+                    srcPort, dstPort);
+        }
+
+        @Override
+        public Builder setFlowClassifierId(FlowClassifierId flowClassifierId) {
+            this.flowClassifierId = flowClassifierId;
+            return this;
+        }
+
+        @Override
+        public Builder setTenantId(TenantId tenantId) {
+            this.tenantId = tenantId;
+            return this;
+        }
+
+        @Override
+        public Builder setFlowClassifierName(String name) {
+            this.name = name;
+            this.isFlowClassifierNameSet = true;
+            return this;
+        }
+
+        @Override
+        public Builder setFlowClassifierDescription(String description) {
+            this.description = description;
+            this.isFlowClassifierDescriptionSet = true;
+            return this;
+        }
+
+        @Override
+        public Builder setEtherType(EtherType etherType) {
+            this.etherType = etherType;
+            this.isEtherTypeSet = true;
+            return this;
+        }
+
+        @Override
+        public Builder setIpProtocol(String protocol) {
+            this.protocol = protocol;
+            this.isProtocolSet = true;
+            return this;
+        }
+
+        @Override
+        public Builder setMinSrcPortRange(int minSrcPortRange) {
+            this.minSrcPortRange = minSrcPortRange;
+            this.isMinSrcPortRangeSet = true;
+            return this;
+        }
+
+        @Override
+        public Builder setMaxSrcPortRange(int maxSrcPortRange) {
+            this.maxSrcPortRange = maxSrcPortRange;
+            this.isMaxSrcPortRangeSet = true;
+            return this;
+        }
+
+        @Override
+        public Builder setMinDstPortRange(int minDstPortRange) {
+            this.minDstPortRange = minDstPortRange;
+            this.isMinDstPortRangeSet = true;
+            return this;
+        }
+
+        @Override
+        public Builder setMaxDstPortRange(int maxDstPortRange) {
+            this.maxDstPortRange = maxDstPortRange;
+            this.isMaxDstPortRangeSet = true;
+            return this;
+        }
+
+        @Override
+        public Builder setSrcIpPrefix(IpPrefix srcIpPrefix) {
+            this.srcIpPrefix = srcIpPrefix;
+            this.isSrcIpPrefixSet = true;
+            return this;
+        }
+
+        @Override
+        public Builder setDstIpPrefix(IpPrefix dstIpPrefix) {
+            this.dstIpPrefix = dstIpPrefix;
+            this.isDstIpPrefixSet = true;
+            return this;
+        }
+
+        @Override
+        public Builder setSrcVirtualPort(VirtualPortId srcPort) {
+            this.srcPort = srcPort;
+            this.isSrcPortSet = true;
+            return this;
+        }
+
+        @Override
+        public Builder setDstVirtualPort(VirtualPortId dstPort) {
+            this.dstPort = dstPort;
+            this.isDstPortSet = true;
+            return this;
+        }
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(flowClassifierId, tenantId, name, description, etherType, protocol, minSrcPortRange,
+                maxSrcPortRange, minDstPortRange, maxDstPortRange, srcIpPrefix, dstIpPrefix, srcPort, dstPort);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof DefaultFlowClassifier) {
+            DefaultFlowClassifier other = (DefaultFlowClassifier) obj;
+            return Objects.equals(this.flowClassifierId, other.flowClassifierId)
+                    && Objects.equals(this.tenantId, other.tenantId)
+                    && Objects.equals(this.name, other.name)
+                    && Objects.equals(this.description, other.description)
+                    && Objects.equals(this.etherType, other.etherType)
+                    && Objects.equals(this.protocol, other.protocol)
+                    && Objects.equals(this.minSrcPortRange, other.minSrcPortRange)
+                    && Objects.equals(this.maxSrcPortRange, other.maxSrcPortRange)
+                    && Objects.equals(this.minDstPortRange, other.minDstPortRange)
+                    && Objects.equals(this.maxDstPortRange, other.maxDstPortRange)
+                    && Objects.equals(this.srcIpPrefix, other.srcIpPrefix)
+                    && Objects.equals(this.dstIpPrefix, other.dstIpPrefix)
+                    && Objects.equals(this.srcPort, other.srcPort)
+                    && Objects.equals(this.dstPort, other.dstPort);
+        }
+        return false;
+    }
+
+    @Override
+    public boolean exactMatch(FlowClassifier flowClassifier) {
+        return this.equals(flowClassifier)
+                && Objects.equals(this.flowClassifierId, flowClassifier.flowClassifierId())
+                && Objects.equals(this.tenantId, flowClassifier.tenantId())
+                && Objects.equals(this.name, flowClassifier.flowclassifierName())
+                && Objects.equals(this.description, flowClassifier.flowClassifierDescription())
+                && Objects.equals(this.etherType, flowClassifier.etherType())
+                && Objects.equals(this.protocol, flowClassifier.ipProtocol())
+                && Objects.equals(this.minSrcPortRange, flowClassifier.minSrcPortRange())
+                && Objects.equals(this.maxSrcPortRange, flowClassifier.maxSrcPortRange())
+                && Objects.equals(this.minDstPortRange, flowClassifier.minDstPortRange())
+                && Objects.equals(this.maxDstPortRange, flowClassifier.maxDstPortRange())
+                && Objects.equals(this.srcIpPrefix, flowClassifier.srcIpPrefix())
+                && Objects.equals(this.dstIpPrefix, flowClassifier.dstIpPrefix())
+                && Objects.equals(this.srcPort, flowClassifier.srcVirtualPort())
+                && Objects.equals(this.dstPort, flowClassifier.dstVirtualPort());
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .add("FlowClassifierId", flowClassifierId)
+                .add("TenantId", tenantId)
+                .add("Name", name)
+                .add("Description", description)
+                .add("EtherType", etherType)
+                .add("Protocol", protocol)
+                .add("MinSrcPortRange", minSrcPortRange)
+                .add("MaxSrcPortRange", maxSrcPortRange)
+                .add("MinDstPortRange", minDstPortRange)
+                .add("MaxDstPortRange", maxDstPortRange)
+                .add("SrcIpPrefix", srcIpPrefix)
+                .add("DstIpPrefix", dstIpPrefix)
+                .add("SrcPort", srcPort)
+                .add("DstPort", dstPort)
+                .toString();
+    }
+}
\ No newline at end of file
diff --git a/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/DefaultPortPair.java b/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/DefaultPortPair.java
new file mode 100644
index 00000000..ed480fb7
--- /dev/null
+++ b/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/DefaultPortPair.java
@@ -0,0 +1,200 @@
+/*
+ * 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.vtnrsc.sfc;
+
+import static com.google.common.base.MoreObjects.toStringHelper;
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import java.util.Objects;
+
+import org.onosproject.vtnrsc.TenantId;
+
+/**
+ * Implementation of port pair.
+ */
+public final class DefaultPortPair implements PortPair {
+
+    private final PortPairId portPairId;
+    private final TenantId tenantId;
+    private final String name;
+    private final String description;
+    private final String ingress;
+    private final String egress;
+
+    /**
+     * Default constructor to create Port Pair.
+     *
+     * @param portPairId port pair id
+     * @param tenantId tenant id
+     * @param name name of port pair
+     * @param description description of port pair
+     * @param ingress ingress port
+     * @param egress egress port
+     */
+    private DefaultPortPair(PortPairId portPairId, TenantId tenantId,
+                            String name, String description,
+                            String ingress, String egress) {
+
+        this.portPairId = portPairId;
+        this.tenantId = tenantId;
+        this.name = name;
+        this.description = description;
+        this.ingress = ingress;
+        this.egress = egress;
+    }
+
+    @Override
+    public PortPairId portPairId() {
+        return portPairId;
+    }
+
+    @Override
+    public TenantId tenantId() {
+        return tenantId;
+    }
+
+    @Override
+    public String name() {
+        return name;
+    }
+
+    @Override
+    public String description() {
+        return description;
+    }
+
+    @Override
+    public String ingress() {
+        return ingress;
+    }
+
+    @Override
+    public String egress() {
+        return egress;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(portPairId, tenantId, name, description,
+                            ingress, egress);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof DefaultPortPair) {
+            DefaultPortPair that = (DefaultPortPair) obj;
+            return Objects.equals(portPairId, that.portPairId) &&
+                    Objects.equals(tenantId, that.tenantId) &&
+                    Objects.equals(name, that.name) &&
+                    Objects.equals(description, that.description) &&
+                    Objects.equals(ingress, that.ingress) &&
+                    Objects.equals(egress, that.egress);
+        }
+        return false;
+    }
+
+    @Override
+    public boolean exactMatch(PortPair portPair) {
+        return this.equals(portPair) &&
+                Objects.equals(this.portPairId, portPair.portPairId()) &&
+                Objects.equals(this.tenantId, portPair.tenantId());
+    }
+
+    @Override
+    public String toString() {
+        return toStringHelper(this)
+                .add("id", portPairId.toString())
+                .add("tenantId", tenantId.tenantId())
+                .add("name", name)
+                .add("description", description)
+                .add("ingress", ingress)
+                .add("egress", egress)
+                .toString();
+    }
+
+    /**
+     * To create an instance of the builder.
+     *
+     * @return instance of builder
+     */
+    public static Builder builder() {
+        return new Builder();
+    }
+
+    /**
+     * Builder class for Port pair.
+     */
+    public static final class Builder implements PortPair.Builder {
+
+        private PortPairId portPairId;
+        private TenantId tenantId;
+        private String name;
+        private String description;
+        private String ingress;
+        private String egress;
+
+        @Override
+        public Builder setId(PortPairId portPairId) {
+            this.portPairId = portPairId;
+            return this;
+        }
+
+        @Override
+        public Builder setTenantId(TenantId tenantId) {
+            this.tenantId = tenantId;
+            return this;
+        }
+
+        @Override
+        public Builder setName(String name) {
+            this.name = name;
+            return this;
+        }
+
+        @Override
+        public Builder setDescription(String description) {
+            this.description = description;
+            return this;
+        }
+
+        @Override
+        public Builder setIngress(String ingress) {
+            this.ingress = ingress;
+            return this;
+        }
+
+        @Override
+        public Builder setEgress(String egress) {
+            this.egress = egress;
+            return this;
+        }
+
+        @Override
+        public PortPair build() {
+
+            checkNotNull(portPairId, "Port pair id cannot be null");
+            checkNotNull(tenantId, "Tenant id cannot be null");
+            checkNotNull(ingress, "Ingress of a port pair cannot be null");
+            checkNotNull(egress, "Egress of a port pair cannot be null");
+
+            return new DefaultPortPair(portPairId, tenantId, name, description,
+                                       ingress, egress);
+        }
+    }
+}
diff --git a/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/FlowClassifier.java b/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/FlowClassifier.java
new file mode 100644
index 00000000..0931206c
--- /dev/null
+++ b/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/FlowClassifier.java
@@ -0,0 +1,257 @@
+/*
+ * 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.vtnrsc.sfc;
+
+import org.onlab.packet.IpPrefix;
+import org.onosproject.vtnrsc.TenantId;
+import org.onosproject.vtnrsc.VirtualPortId;
+/**
+ * Abstraction of an entity which provides flow classifier for service function chain.
+ */
+public interface FlowClassifier {
+
+    /**
+     * Returns flow classifier ID.
+     *
+     * @return flow classifier id
+     */
+    FlowClassifierId flowClassifierId();
+
+    /**
+     * Returns Tenant ID.
+     *
+     * @return tenant Id
+     */
+    TenantId tenantId();
+
+    /**
+     * Returns flow classifier name.
+     *
+     * @return flow classifier name
+     */
+    String flowclassifierName();
+
+    /**
+     * Returns flow classifier description.
+     *
+     * @return flow classifier description
+     */
+    String flowClassifierDescription();
+
+    /**
+     * Returns ethernet type.
+     *
+     * @return ethernet type
+     */
+    String etherType();
+
+    /**
+     * Returns IP Protocol.
+     *
+     * @return IP protocol
+     */
+    String ipProtocol();
+
+    /**
+     * Returns minimum source port range.
+     *
+     * @return minimum source port range
+     */
+    int minSrcPortRange();
+
+    /**
+     * Returns maximum source port range.
+     *
+     * @return maximum source port range
+     */
+    int maxSrcPortRange();
+
+    /**
+     * Returns minimum destination port range.
+     *
+     * @return minimum destination port range
+     */
+    int minDstPortRange();
+
+    /**
+     * Returns maximum destination port range.
+     *
+     * @return maximum destination port range.
+     */
+    int maxDstPortRange();
+
+    /**
+     * Returns Source IP prefix.
+     *
+     * @return Source IP prefix
+     */
+    IpPrefix srcIpPrefix();
+
+    /**
+     * Returns Destination IP prefix.
+     *
+     * @return Destination IP prefix
+     */
+    IpPrefix dstIpPrefix();
+
+    /**
+     * Returns Source virtual port.
+     *
+     * @return Source virtual port
+     */
+    VirtualPortId srcVirtualPort();
+
+    /**
+     * Returns Destination virtual port.
+     *
+     * @return Destination virtual port
+     */
+    VirtualPortId dstVirtualPort();
+
+    /**
+     * Returns whether this Flow classifier is an exact match to the
+     * Flow classifier given in the argument.
+     *
+     * @param flowClassifier other flowClassifier to match against
+     * @return true if the flowClassifiers are an exact match, otherwise false
+     */
+    boolean exactMatch(FlowClassifier flowClassifier);
+
+    /**
+     * Builder for flow Classifier.
+     */
+    interface Builder {
+
+        /**
+         * Returns Flow Classifier.
+         *
+         * @return flow classifier.
+         */
+        FlowClassifier build();
+
+        /**
+         * Sets Flow Classifier ID.
+         *
+         * @param flowClassifierId flow classifier id.
+         * @return Builder object by setting flow classifier Id.
+         */
+        Builder setFlowClassifierId(FlowClassifierId flowClassifierId);
+
+        /**
+         * Sets Tenant ID.
+         *
+         * @param tenantId tenant id.
+         * @return Builder object by setting Tenant ID.
+         */
+        Builder setTenantId(TenantId tenantId);
+
+        /**
+         * Sets Flow classifier name.
+         *
+         * @param name flow classifier name
+         * @return builder object by setting flow classifier name
+         */
+        Builder setFlowClassifierName(String name);
+
+        /**
+         * Sets flow classifier description.
+         *
+         * @param description flow classifier description
+         * @return flow classifier description
+         */
+        Builder setFlowClassifierDescription(String description);
+
+        /**
+         * Sets Ehternet type.
+         *
+         * @param etherType ethernet type
+         * @return ethernet type
+         */
+        Builder setEtherType(String etherType);
+
+        /**
+         * Sets IP protocol.
+         *
+         * @param protocol IP protocol
+         * @return builder object by setting IP protocol
+         */
+        Builder setIpProtocol(String protocol);
+
+        /**
+         * Set minimum source port range.
+         *
+         * @param minRange minimum source port range
+         * @return builder object by setting minimum source port range
+         */
+        Builder setMinSrcPortRange(int minRange);
+
+        /**
+         * Sets maximum source port range.
+         *
+         * @param maxRange maximum source port range
+         * @return builder object by setting maximum source port range
+         */
+        Builder setMaxSrcPortRange(int maxRange);
+
+        /**
+         * Sets minimum destination port range.
+         *
+         * @param minRange minimum destination port range
+         * @return builder object by setting minimum destination port range
+         */
+        Builder setMinDstPortRange(int minRange);
+
+        /**
+         * Sets maximum destination port range.
+         *
+         * @param maxRange maximum destination port range.
+         * @return builder object by setting maximum destination port range.
+         */
+        Builder setMaxDstPortRange(int maxRange);
+
+        /**
+         * Sets Source IP prefix.
+         *
+         * @param srcIpPrefix Source IP prefix
+         * @return builder object by setting Source IP prefix
+         */
+        Builder setSrcIpPrefix(IpPrefix srcIpPrefix);
+
+        /**
+         * Sets Destination IP prefix.
+         *
+         * @param dstIpPrefix Destination IP prefix
+         * @return builder object by setting Destination IP prefix
+         */
+        Builder setDstIpPrefix(IpPrefix dstIpPrefix);
+
+        /**
+         * Sets Source virtual port.
+         *
+         * @param srcPort Source virtual port
+         * @return builder object by setting Source virtual port
+         */
+        Builder setSrcVirtualPort(VirtualPortId srcPort);
+
+        /**
+         * Sets Destination virtual port.
+         *
+         * @param dstPort Destination virtual port
+         * @return builder object by setting Destination virtual port
+         */
+        Builder setDstVirtualPort(VirtualPortId dstPort);
+    }
+}
diff --git a/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/FlowClassifierId.java b/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/FlowClassifierId.java
new file mode 100644
index 00000000..d0f03959
--- /dev/null
+++ b/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/FlowClassifierId.java
@@ -0,0 +1,71 @@
+/*
+ * 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.vtnrsc.sfc;
+
+import java.util.Objects;
+import java.util.UUID;
+import com.google.common.base.MoreObjects;
+
+/**
+ * flow classification identifier.
+ */
+public final class FlowClassifierId {
+
+    private final UUID flowClassifierId;
+
+    /**
+     * Constructor to create flow classifier id.
+     *
+     * @param flowClassifierId flow classifier id.
+     */
+    private FlowClassifierId(final UUID flowClassifierId) {
+        this.flowClassifierId = flowClassifierId;
+    }
+
+    /**
+     * Returns new flow classifier id.
+     *
+     * @param flowClassifierId flow classifier id
+     * @return new flow classifier id
+     */
+    public static FlowClassifierId flowClassifierId(final UUID flowClassifierId) {
+        return new FlowClassifierId(flowClassifierId);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.flowClassifierId);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof FlowClassifierId) {
+            final FlowClassifierId other = (FlowClassifierId) obj;
+            return Objects.equals(this.flowClassifierId, other.flowClassifierId);
+        }
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .add("FlowClassifierId", flowClassifierId)
+                .toString();
+    }
+}
diff --git a/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/PortPair.java b/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/PortPair.java
new file mode 100644
index 00000000..e3df941d
--- /dev/null
+++ b/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/PortPair.java
@@ -0,0 +1,140 @@
+/*
+ * 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.vtnrsc.sfc;
+
+import org.onosproject.vtnrsc.TenantId;
+
+/**
+ * Abstraction of an entity providing Port Pair information.
+ * A port pair represents a service function instance.
+ */
+public interface PortPair {
+
+    /**
+     * Returns the ID of this port Pair.
+     *
+     * @return the port pair id
+     */
+    PortPairId portPairId();
+
+    /**
+     * Returns the tenant id of this port pair.
+     *
+     * @return an tenant id
+     */
+    TenantId tenantId();
+
+    /**
+     * Returns the description of this port pair.
+     *
+     * @return description of port pair
+     */
+    String name();
+
+    /**
+     * Returns the description of this port pair.
+     *
+     * @return description of port pair
+     */
+    String description();
+
+    /**
+     * Returns the ingress port of this port pair.
+     *
+     * @return ingress of port pair
+     */
+    String ingress();
+
+    /**
+     * Returns the egress port of this port pair.
+     *
+     * @return egress of port pair
+     */
+    String egress();
+
+    /**
+     * Returns whether this port pair is an exact match to the port pair given
+     * in the argument.
+     * <p>
+     * Exact match means the Port port pairs match with the given port pair.
+     * It does not consider the port pair id, name and description.
+     * </p>
+     * @param portPair other port pair to match against
+     * @return true if the port pairs are an exact match, otherwise false
+     */
+    boolean exactMatch(PortPair portPair);
+
+    /**
+     * A port pair builder..
+     */
+    interface Builder {
+
+        /**
+         * Assigns the port pair id to this object.
+         *
+         * @param portPairId the port pair id
+         * @return this the builder object
+         */
+        Builder setId(PortPairId portPairId);
+
+        /**
+         * Assigns tenant id to this object.
+         *
+         * @param tenantId tenant id of the port pair
+         * @return this the builder object
+         */
+        Builder setTenantId(TenantId tenantId);
+
+        /**
+         * Assigns the name to this object.
+         *
+         * @param name name of the port pair
+         * @return this the builder object
+         */
+        Builder setName(String name);
+
+        /**
+         * Assigns the description to this object.
+         *
+         * @param description description of the port pair
+         * @return this the builder object
+         */
+        Builder setDescription(String description);
+
+        /**
+         * Assigns the ingress port to this object.
+         *
+         * @param port ingress port of the port pair
+         * @return this the builder object
+         */
+        Builder setIngress(String port);
+
+        /**
+         * Assigns the egress port to this object.
+         *
+         * @param port egress port of the port pair
+         * @return this the builder object
+         */
+        Builder setEgress(String port);
+
+        /**
+         * Builds a port pair object.
+         *
+         * @return a port pair.
+         */
+        PortPair build();
+    }
+}
diff --git a/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/PortPairId.java b/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/PortPairId.java
new file mode 100644
index 00000000..0209c23e
--- /dev/null
+++ b/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/PortPairId.java
@@ -0,0 +1,92 @@
+/*
+ * 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.vtnrsc.sfc;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import java.util.UUID;
+
+import com.google.common.base.Objects;
+
+/**
+ * Representation of a Port Pair ID.
+ */
+public final class PortPairId {
+
+    private final UUID portPairId;
+
+    /**
+     * Private constructor for port pair id.
+     *
+     * @param id UUID id of port pair
+     */
+    private PortPairId(UUID id) {
+        checkNotNull(id, "Port chain id can not be null");
+        this.portPairId = id;
+    }
+
+    /**
+     * Constructor to create port pair id from UUID.
+     *
+     * @param id UUID of port pair id
+     * @return object of port pair id
+     */
+    public static PortPairId portPairId(UUID id) {
+        return new PortPairId(id);
+    }
+
+    /**
+     * Constructor to create port pair id from string.
+     *
+     * @param id port pair id in string
+     * @return object of port pair id
+     */
+    public static PortPairId portPairId(String id) {
+        return new PortPairId(UUID.fromString(id));
+    }
+
+    /**
+     * Returns teh value of port pair id.
+     *
+     * @return port pair id
+     */
+    public UUID value() {
+        return portPairId;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+
+        if (obj.getClass()  == this.getClass()) {
+            PortPairId that = (PortPairId) obj;
+            return Objects.equal(this.portPairId, that.portPairId);
+        }
+        return false;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.portPairId);
+    }
+
+    @Override
+    public String toString() {
+        return portPairId.toString();
+    }
+}
diff --git a/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/package-info.java b/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/package-info.java
new file mode 100644
index 00000000..4fbcfd29
--- /dev/null
+++ b/framework/patches/onos/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/sfc/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * 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.
+ */
+
+/**
+ * Service for interacting with SFC.
+ */
+package org.onosproject.vtnrsc.sfc;