[onos-3494] Implement TCP Flags Criterion to Southbound
Change-Id: I65bdfa7286249dabfc8109faca140a000efd5e48
diff --git a/core/api/src/main/java/org/onosproject/net/flow/criteria/Criteria.java b/core/api/src/main/java/org/onosproject/net/flow/criteria/Criteria.java
index da8e426..84c6c12 100644
--- a/core/api/src/main/java/org/onosproject/net/flow/criteria/Criteria.java
+++ b/core/api/src/main/java/org/onosproject/net/flow/criteria/Criteria.java
@@ -230,6 +230,16 @@
}
/**
+ * Creates a match on TCP flags using the specified value.
+ *
+ * @param flags TCP flags
+ * @return match criterion
+ */
+ public static Criterion matchTcpFlags(int flags) {
+ return new TcpFlagsCriterion(flags);
+ }
+
+ /**
* Creates a match on UDP source port field using the specified value.
*
* @param udpPort UDP source port
diff --git a/core/api/src/main/java/org/onosproject/net/flow/criteria/TcpFlagsCriterion.java b/core/api/src/main/java/org/onosproject/net/flow/criteria/TcpFlagsCriterion.java
new file mode 100644
index 0000000..e0b5395
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/flow/criteria/TcpFlagsCriterion.java
@@ -0,0 +1,75 @@
+/*
+ * 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.net.flow.criteria;
+
+import java.util.Objects;
+
+import static com.google.common.base.MoreObjects.toStringHelper;
+
+/**
+ * Implementation of TCP flags criterion (12 bits unsigned integer).
+ */
+public final class TcpFlagsCriterion implements Criterion {
+ private static final int MASK = 0xfffff;
+ private final int flags; // TCP flags: 12 bits
+
+ /**
+ * Constructor.
+ *
+ * @param flags the TCP flags to match (12 bits)
+ */
+ TcpFlagsCriterion(int flags) {
+ this.flags = flags & MASK;
+ }
+
+ @Override
+ public Type type() {
+ return Type.TCP_FLAGS;
+ }
+
+ /**
+ * Gets the TCP flags to match.
+ *
+ * @return the TCP flags to match (12 bits)
+ */
+ public int flags() {
+ return flags;
+ }
+
+ @Override
+ public String toString() {
+ return toStringHelper(type().toString())
+ .add("flags", Long.toHexString(flags)).toString();
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(type().ordinal(), flags);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj instanceof TcpFlagsCriterion) {
+ TcpFlagsCriterion that = (TcpFlagsCriterion) obj;
+ return Objects.equals(flags, that.flags) &&
+ Objects.equals(this.type(), that.type());
+ }
+ return false;
+ }
+}