/*
 * Copyright 2021-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.segmentrouting.policy.api;

import java.util.Objects;

import static com.google.common.base.MoreObjects.toStringHelper;

/**
 * Implementation of the drop policy.
 */
public final class DropPolicy extends AbstractPolicy {
    /**
     * Builds up a DROP policy.
     */
    public DropPolicy() {
        super(PolicyType.DROP);
        policyId = computePolicyId();
    }

    @Override
    protected PolicyId computePolicyId() {
        return PolicyId.of(policyType().name());
    }

    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (!(obj instanceof DropPolicy)) {
            return false;
        }
        final DropPolicy other = (DropPolicy) obj;
        return Objects.equals(policyType(), other.policyType()) &&
                Objects.equals(policyId(), other.policyId());
    }

    @Override
    public int hashCode() {
        return Objects.hash(policyId(), policyType());
    }

    @Override
    public String toString() {
        return toStringHelper(this)
                .add("policyId", policyId())
                .add("policyType", policyType())
                .toString();
    }
}