[ONOS-3857] BGP flow specification prefix implementation.
Change-Id: I49228f85f8efd5e972092df798a42ffc316d784d
diff --git a/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/flowspec/BgpFlowSpecPrefix.java b/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/flowspec/BgpFlowSpecPrefix.java
new file mode 100755
index 0000000..cbf4269
--- /dev/null
+++ b/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/flowspec/BgpFlowSpecPrefix.java
@@ -0,0 +1,139 @@
+/*
+ * 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.protocol.flowspec;
+
+import java.util.Objects;
+import org.onlab.packet.IpPrefix;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import java.nio.ByteBuffer;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Provides BGP flow specification rule index.
+ */
+public class BgpFlowSpecPrefix implements Comparable<Object> {
+
+ private static final Logger log = LoggerFactory.getLogger(BgpFlowSpecPrefix.class);
+
+ private final IpPrefix destinationPrefix;
+ private final IpPrefix sourcePrefix;
+
+ /**
+ * Constructor to initialize parameters.
+ *
+ * @param destinationPrefix destination prefix
+ * @param sourcePrefix source prefix
+ */
+ public BgpFlowSpecPrefix(IpPrefix destinationPrefix, IpPrefix sourcePrefix) {
+ this.destinationPrefix = destinationPrefix;
+ this.sourcePrefix = sourcePrefix;
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(destinationPrefix, sourcePrefix);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+
+ if (obj instanceof BgpFlowSpecPrefix) {
+ BgpFlowSpecPrefix other = (BgpFlowSpecPrefix) obj;
+
+ if (this.destinationPrefix.equals(other.destinationPrefix)) {
+ return this.sourcePrefix.equals(other.sourcePrefix);
+ }
+ return false;
+ }
+ return false;
+ }
+
+ /**
+ * Returns destination prefix.
+ *
+ * @return destination prefix
+ */
+ public IpPrefix destinationPrefix() {
+ return this.destinationPrefix;
+ }
+
+ /**
+ * Returns source prefix.
+ *
+ * @return source prefix
+ */
+ public IpPrefix sourcePrefix() {
+ return this.sourcePrefix;
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass()).omitNullValues()
+ .add("destinationPrefix", destinationPrefix)
+ .add("sourcePrefix", destinationPrefix)
+ .toString();
+ }
+
+ /**
+ * Compares this and o object.
+ *
+ * @param o object to be compared with this object
+ * @return which object is greater
+ */
+ public int compareTo(Object o) {
+ if (this.equals(o)) {
+ return 0;
+ }
+
+ if (o instanceof BgpFlowSpecPrefix) {
+ BgpFlowSpecPrefix that = (BgpFlowSpecPrefix) o;
+
+ if (this.destinationPrefix().prefixLength() == that.destinationPrefix().prefixLength()) {
+ ByteBuffer value1 = ByteBuffer.wrap(this.destinationPrefix().address().toOctets());
+ ByteBuffer value2 = ByteBuffer.wrap(that.destinationPrefix().address().toOctets());
+ int cmpVal = value1.compareTo(value2);
+ if (cmpVal != 0) {
+ return cmpVal;
+ }
+ } else {
+ if (this.destinationPrefix().prefixLength() > that.destinationPrefix().prefixLength()) {
+ return 1;
+ } else if (this.destinationPrefix().prefixLength() < that.destinationPrefix().prefixLength()) {
+ return -1;
+ }
+ }
+
+ if (this.sourcePrefix().prefixLength() == that.sourcePrefix().prefixLength()) {
+ ByteBuffer value1 = ByteBuffer.wrap(this.sourcePrefix().address().toOctets());
+ ByteBuffer value2 = ByteBuffer.wrap(that.sourcePrefix().address().toOctets());
+ return value1.compareTo(value2);
+ }
+
+ if (this.sourcePrefix().prefixLength() > that.sourcePrefix().prefixLength()) {
+ return 1;
+ } else if (this.sourcePrefix().prefixLength() < that.sourcePrefix().prefixLength()) {
+ return -1;
+ }
+ }
+ return 1;
+ }
+}
diff --git a/protocols/bgp/bgpio/src/test/java/org/onosproject/bgpio/protocol/flowspec/BgpFlowSpecPrefixTest.java b/protocols/bgp/bgpio/src/test/java/org/onosproject/bgpio/protocol/flowspec/BgpFlowSpecPrefixTest.java
new file mode 100644
index 0000000..f9d9d89
--- /dev/null
+++ b/protocols/bgp/bgpio/src/test/java/org/onosproject/bgpio/protocol/flowspec/BgpFlowSpecPrefixTest.java
@@ -0,0 +1,44 @@
+/*
+ * 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.protocol.flowspec;
+
+import org.junit.Test;
+
+import org.onlab.packet.IpPrefix;
+
+import com.google.common.testing.EqualsTester;
+
+/**
+ * Test for BgpFsDestinationPrefix flow specification component.
+ */
+public class BgpFlowSpecPrefixTest {
+ private IpPrefix destinationPrefix1 = IpPrefix.valueOf("21.21.21.21/16");
+ private IpPrefix sourcePrefix1 = IpPrefix.valueOf("11.11.11.11/16");
+ private IpPrefix destinationPrefix2 = IpPrefix.valueOf("42.42.42.42/16");
+ private IpPrefix sourcePrefix2 = IpPrefix.valueOf("32.32.32.32/16");
+
+ private final BgpFlowSpecPrefix tlv1 = new BgpFlowSpecPrefix(destinationPrefix1, sourcePrefix1);
+ private final BgpFlowSpecPrefix sameAsTlv1 = new BgpFlowSpecPrefix(destinationPrefix1, sourcePrefix1);
+ private final BgpFlowSpecPrefix tlv2 = new BgpFlowSpecPrefix(destinationPrefix2, sourcePrefix2);
+
+ @Test
+ public void testEquality() {
+ new EqualsTester()
+ .addEqualityGroup(tlv1, sameAsTlv1)
+ .addEqualityGroup(tlv2)
+ .testEquals();
+ }
+}