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/*
* Copyright (c) 2016 Cisco and/or its affiliates.
*
* 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 io.fd.hc2vpp.acl.util.acl;
import java.nio.charset.StandardCharsets;
import java.util.List;
import java.util.Optional;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160708.access.lists.Acl;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160708.access.lists.acl.access.list.entries.Ace;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160708.access.lists.acl.access.list.entries.ace.Matches;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.acl.rev161214.access.lists.acl.access.list.entries.ace.matches.ace.type.VppAce;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.acl.rev161214.access.lists.acl.access.list.entries.ace.matches.ace.type.VppMacipAce;
/**
* Extracts data from Acls.
* Expects data validated by {@link AclValidator}
*/
public interface AclDataExtractor {
/**
* Checks if provided {@link Acl} has aces of type {@link VppAce}
*/
default boolean isStandardAcl(@Nonnull final Acl acl) {
return acl.getAccessListEntries().getAce().stream()
.map(Ace::getMatches)
.map(Matches::getAceType)
.filter(aceType -> aceType instanceof VppAce)
.findAny()
.isPresent();
}
/**
* Checks if provided {@link Acl} has aces of type {@link VppMacipAce}
*/
default boolean isMacIpAcl(@Nonnull final Acl acl) {
return acl.getAccessListEntries().getAce().stream()
.map(Ace::getMatches)
.map(Matches::getAceType)
.filter(aceType -> aceType instanceof VppMacipAce)
.findAny()
.isPresent();
}
default List<Ace> getAces(@Nonnull final Acl acl) {
return Optional.ofNullable(acl.getAccessListEntries()).orElseThrow(() ->
new IllegalArgumentException(String.format("Unable to extract aces from %s", acl))).getAce();
}
/**
* Convert {@link Acl} name to byte array as UTF_8
*/
default byte[] getAclNameAsBytes(@Nonnull final Acl acl) {
return Optional.ofNullable(acl.getAclName())
.orElseThrow(() -> new IllegalArgumentException("Unable to extract bytes for null"))
.getBytes(StandardCharsets.UTF_8);
}
}
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