| /* |
| * Copyright 2015-present Open Networking Foundation |
| * |
| * 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; |
| |
| /** |
| * 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 type().toString() + SEPARATOR + Long.toHexString(flags); |
| } |
| |
| @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; |
| } |
| } |