| /* |
| * Copyright 2017-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.pi.runtime; |
| |
| import com.google.common.annotations.Beta; |
| import com.google.common.base.Objects; |
| import org.onlab.util.ImmutableByteSequence; |
| import org.onosproject.net.pi.model.PiMatchFieldId; |
| import org.onosproject.net.pi.model.PiMatchType; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * Instance of a longest-prefix field match in a protocol-independent pipeline. |
| */ |
| @Beta |
| public final class PiLpmFieldMatch extends PiFieldMatch { |
| |
| private final ImmutableByteSequence value; |
| private final int prefixLength; |
| |
| /** |
| * Creates a new LPM field match. |
| * |
| * @param fieldId field identifier |
| * @param value value |
| * @param prefixLength prefix length |
| */ |
| public PiLpmFieldMatch(PiMatchFieldId fieldId, ImmutableByteSequence value, int prefixLength) { |
| super(fieldId); |
| this.value = checkNotNull(value); |
| this.prefixLength = prefixLength; |
| checkArgument(value.size() > 0, "Value must have non-zero size"); |
| checkArgument(prefixLength >= 0, "Prefix length must be a non-negative integer"); |
| } |
| |
| @Override |
| public PiMatchType type() { |
| return PiMatchType.LPM; |
| } |
| |
| /** |
| * Returns the value matched by this field. |
| * |
| * @return a byte sequence value |
| */ |
| public ImmutableByteSequence value() { |
| return value; |
| } |
| |
| /** |
| * Returns the prefix length to be matched. |
| * |
| * @return an integer value |
| */ |
| public int prefixLength() { |
| return prefixLength; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| PiLpmFieldMatch that = (PiLpmFieldMatch) o; |
| return prefixLength == that.prefixLength && |
| Objects.equal(value, that.value) && |
| Objects.equal(this.fieldId(), that.fieldId()); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hashCode(this.fieldId(), value, prefixLength); |
| } |
| |
| @Override |
| public String toString() { |
| return this.fieldId().toString() + '=' + value.toString() |
| + '/' + String.valueOf(prefixLength); |
| } |
| } |