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// Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.container.core.documentapi;
import com.yahoo.cloud.config.SlobroksConfig;
import com.yahoo.document.config.DocumentmanagerConfig;
import com.yahoo.document.select.parser.ParseException;
import com.yahoo.documentapi.AsyncParameters;
import com.yahoo.documentapi.AsyncSession;
import com.yahoo.documentapi.DocumentAccess;
import com.yahoo.documentapi.DocumentAccessParams;
import com.yahoo.documentapi.SubscriptionParameters;
import com.yahoo.documentapi.SubscriptionSession;
import com.yahoo.documentapi.SyncParameters;
import com.yahoo.documentapi.SyncSession;
import com.yahoo.documentapi.VisitorDestinationParameters;
import com.yahoo.documentapi.VisitorDestinationSession;
import com.yahoo.documentapi.VisitorParameters;
import com.yahoo.documentapi.VisitorSession;
import com.yahoo.documentapi.messagebus.MessageBusDocumentAccess;
import com.yahoo.documentapi.messagebus.MessageBusParams;
import com.yahoo.documentapi.messagebus.loadtypes.LoadTypeSet;
import com.yahoo.messagebus.MessagebusConfig;
import com.yahoo.documentapi.messagebus.protocol.DocumentProtocolPoliciesConfig;
import com.yahoo.vespa.config.content.DistributionConfig;
import com.yahoo.vespa.config.content.LoadTypeConfig;
import java.util.concurrent.atomic.AtomicReference;
/**
* Wraps a lazily initialised {@link DocumentAccess}. Lazy to allow it to always be set up.
* Inject this class directly (instead of DocumentAccess) for use in internal code.
*
* @author jonmv
*/
public class VespaDocumentAccess extends DocumentAccess {
private final MessageBusParams parameters;
private final AtomicReference<DocumentAccess> delegate = new AtomicReference<>();
private boolean shutDown = false;
VespaDocumentAccess(DocumentmanagerConfig documentmanagerConfig,
LoadTypeConfig loadTypeConfig,
SlobroksConfig slobroksConfig,
MessagebusConfig messagebusConfig,
DocumentProtocolPoliciesConfig policiesConfig,
DistributionConfig distributionConfig) {
super(new DocumentAccessParams().setDocumentmanagerConfig(documentmanagerConfig));
this.parameters = new MessageBusParams(new LoadTypeSet(loadTypeConfig))
.setDocumentProtocolPoliciesConfig(policiesConfig, distributionConfig);
this.parameters.setDocumentmanagerConfig(documentmanagerConfig);
this.parameters.getRPCNetworkParams().setSlobroksConfig(slobroksConfig);
this.parameters.getMessageBusParams().setMessageBusConfig(messagebusConfig);
}
public DocumentAccess delegate() {
DocumentAccess access = delegate.getAcquire();
return access != null ? access : delegate.updateAndGet(value -> {
if (value != null)
return value;
if (shutDown)
throw new IllegalStateException("This document access has been shut down");
return new MessageBusDocumentAccess(parameters);
});
}
@Override
public void shutdown() {
delegate.updateAndGet(access -> {
super.shutdown();
shutDown = true;
if (access != null)
access.shutdown();
return null;
});
}
@Override
public SyncSession createSyncSession(SyncParameters parameters) {
return delegate().createSyncSession(parameters);
}
@Override
public AsyncSession createAsyncSession(AsyncParameters parameters) {
return delegate().createAsyncSession(parameters);
}
@Override
public VisitorSession createVisitorSession(VisitorParameters parameters) throws ParseException {
return delegate().createVisitorSession(parameters);
}
@Override
public VisitorDestinationSession createVisitorDestinationSession(VisitorDestinationParameters parameters) {
return delegate().createVisitorDestinationSession(parameters);
}
@Override
public SubscriptionSession createSubscription(SubscriptionParameters parameters) {
return delegate().createSubscription(parameters);
}
@Override
public SubscriptionSession openSubscription(SubscriptionParameters parameters) {
return delegate().openSubscription(parameters);
}
}
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