[ONOS-3857] BGP flow specification component port number TLV

Change-Id: Ie3e9d505b28baef2f351ba42d7c7167a2b046369

+/*
+ * Copyright 2016 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.bgpio.types;
+
+import java.util.Objects;
+import java.util.List;
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.bgpio.exceptions.BgpParseException;
+import org.onosproject.bgpio.util.Constants;
+import com.google.common.base.MoreObjects;
+
+/**
+ * Provides implementation of BGP flow specification component.
+ */
+public class BgpFsPortNum implements BgpValueType {
+    public static final byte FLOW_SPEC_TYPE = Constants.BGP_FLOWSPEC_PORT;
+    private List<BgpFsOperatorValue> operatorValue;
+
+    /**
+     * Constructor to initialize the value.
+     *
+     * @param operatorValue list of operator and value
+     */
+    public BgpFsPortNum(List<BgpFsOperatorValue> operatorValue) {
+        this.operatorValue = operatorValue;
+    }
+
+    @Override
+    public short getType() {
+        return this.FLOW_SPEC_TYPE;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(operatorValue);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof BgpFsPortNum) {
+            BgpFsPortNum other = (BgpFsPortNum) obj;
+            return this.operatorValue.equals(other.operatorValue);
+        }
+        return false;
+    }
+
+    @Override
+    public int write(ChannelBuffer cb) {
+        int iLenStartIndex = cb.writerIndex();
+
+        cb.writeByte(FLOW_SPEC_TYPE);
+
+        for (BgpFsOperatorValue fsOperVal : operatorValue) {
+            cb.writeByte(fsOperVal.option());
+            cb.writeBytes(fsOperVal.value());
+        }
+
+        return cb.writerIndex() - iLenStartIndex;
+    }
+
+    /**
+     * Reads the channel buffer and returns object.
+     *
+     * @param cb channelBuffer
+     * @param type address type
+     * @return object of flow spec port number
+     * @throws BgpParseException while parsing BgpFsPortNum
+     */
+    public static BgpFsPortNum read(ChannelBuffer cb, short type) throws BgpParseException {
+        return null;
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .add("FLOW_SPEC_TYPE", FLOW_SPEC_TYPE)
+                .add("operatorValue", operatorValue).toString();
+    }
+
+    @Override
+    public int compareTo(Object o) {
+        // TODO Auto-generated method stub
+        return 0;
+    }
+}

+/*
+ * Copyright 2016 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.bgpio.types;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.Test;
+
+import com.google.common.testing.EqualsTester;
+
+/**
+ * Test for BGP flow specification port number component.
+ */
+public class BgpFsPortNumTest {
+    List<BgpFsOperatorValue> operatorValue1 = new ArrayList<>();
+    List<BgpFsOperatorValue> operatorValue2 = new ArrayList<>();
+
+    @Test
+    public void testEquality() {
+        operatorValue1.add(new BgpFsOperatorValue((byte) 1, new byte[100]));
+        operatorValue1.add(new BgpFsOperatorValue((byte) 1, new byte[100]));
+        operatorValue2.add(new BgpFsOperatorValue((byte) 2, new byte[100]));
+        operatorValue2.add(new BgpFsOperatorValue((byte) 1, new byte[100]));
+
+        BgpFsPortNum tlv1 = new BgpFsPortNum(operatorValue1);
+        BgpFsPortNum sameAsTlv1 = new BgpFsPortNum(operatorValue1);
+        BgpFsPortNum tlv2 = new BgpFsPortNum(operatorValue2);
+
+        new EqualsTester()
+        .addEqualityGroup(tlv1, sameAsTlv1)
+        .addEqualityGroup(tlv2)
+        .testEquals();
+    }
+}