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/*
* Copyright (c) 2017 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.lisp.translate.service;
import static com.google.common.base.Preconditions.checkState;
import com.google.inject.Inject;
import io.fd.hc2vpp.common.translate.util.ByteDataTranslator;
import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
import io.fd.honeycomb.translate.read.ReadContext;
import io.fd.honeycomb.translate.read.ReadFailedException;
import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager;
import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager.DumpCacheManagerBuilder;
import io.fd.honeycomb.translate.write.WriteContext;
import io.fd.vpp.jvpp.core.dto.ShowOneStatus;
import io.fd.vpp.jvpp.core.dto.ShowOneStatusReply;
import io.fd.vpp.jvpp.core.future.FutureJVppCore;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev170808.Lisp;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev170808.LispBuilder;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
public final class LispStateCheckServiceImpl implements LispStateCheckService, JvppReplyConsumer, ByteDataTranslator {
private static final Lisp STATIC_LISP_INSTANCE = new LispBuilder().setEnable(false).build();
private static final ShowOneStatusReply DEFAULT_REPLY = new ShowOneStatusReply();
private static final InstanceIdentifier<Lisp> IDENTIFIER = InstanceIdentifier.create(Lisp.class);
private final DumpCacheManager<ShowOneStatusReply, Void> dumpManager;
@Inject
public LispStateCheckServiceImpl(@Nonnull final FutureJVppCore vppApi) {
dumpManager = new DumpCacheManagerBuilder<ShowOneStatusReply, Void>()
.withExecutor((instanceIdentifier, aVoid) -> getReplyForRead(vppApi.showOneStatus(new ShowOneStatus())
.toCompletableFuture(), instanceIdentifier))
.acceptOnly(ShowOneStatusReply.class)
.build();
}
@Override
public void checkLispEnabledBefore(@Nonnull final WriteContext ctx) {
// no need to dump here, can be read directly from context
checkState(ctx.readBefore(InstanceIdentifier.create(Lisp.class))
.or(STATIC_LISP_INSTANCE).isEnable(), "Lisp feature not enabled");
}
@Override
public void checkLispEnabledAfter(@Nonnull final WriteContext ctx) {
// no need to dump here, can be read directly from context
checkState(ctx.readAfter(InstanceIdentifier.create(Lisp.class))
.or(STATIC_LISP_INSTANCE).isEnable(), "Lisp feature not enabled");
}
public boolean lispEnabled(@Nonnull final ReadContext ctx) {
// in this case it must be dumped
try {
return byteToBoolean(dumpManager.getDump(IDENTIFIER, ctx.getModificationCache())
.or(DEFAULT_REPLY).featureStatus);
} catch (ReadFailedException e) {
throw new IllegalStateException("Unable to read Lisp Feature status", e);
}
}
}
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