/
ClusterWrapper.java
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/
ClusterWrapper.java
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/*
* Copyright (C) 2017-2017 DataStax Inc.
*
* 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 com.datastax.oss.driver.internal.core;
import com.datastax.oss.driver.api.core.Cluster;
import com.datastax.oss.driver.api.core.CqlIdentifier;
import com.datastax.oss.driver.api.core.context.DriverContext;
import com.datastax.oss.driver.api.core.metadata.Metadata;
import com.datastax.oss.driver.api.core.metadata.NodeStateListener;
import com.datastax.oss.driver.api.core.metadata.schema.SchemaChangeListener;
import com.datastax.oss.driver.api.core.session.Session;
import java.util.concurrent.CompletionStage;
/** Utility class to wrap a cluster and make it return a different session type. */
public abstract class ClusterWrapper<SourceSessionT extends Session, TargetSessionT extends Session>
implements Cluster<TargetSessionT> {
private final Cluster<SourceSessionT> delegate;
public ClusterWrapper(Cluster<SourceSessionT> delegate) {
this.delegate = delegate;
}
protected abstract TargetSessionT wrap(SourceSessionT session);
@Override
public String getName() {
return delegate.getName();
}
@Override
public Metadata getMetadata() {
return delegate.getMetadata();
}
@Override
public boolean isSchemaMetadataEnabled() {
return delegate.isSchemaMetadataEnabled();
}
@Override
public CompletionStage<Metadata> setSchemaMetadataEnabled(Boolean newValue) {
return delegate.setSchemaMetadataEnabled(newValue);
}
@Override
public CompletionStage<Metadata> refreshSchemaAsync() {
return delegate.refreshSchemaAsync();
}
@Override
public CompletionStage<Boolean> checkSchemaAgreementAsync() {
return delegate.checkSchemaAgreementAsync();
}
@Override
public DriverContext getContext() {
return delegate.getContext();
}
@Override
public CompletionStage<TargetSessionT> connectAsync(CqlIdentifier keyspace) {
return delegate.connectAsync(keyspace).thenApply(this::wrap);
}
@Override
public Cluster register(SchemaChangeListener listener) {
return delegate.register(listener);
}
@Override
public Cluster unregister(SchemaChangeListener listener) {
return delegate.unregister(listener);
}
@Override
public Cluster register(NodeStateListener listener) {
return delegate.register(listener);
}
@Override
public Cluster unregister(NodeStateListener listener) {
return delegate.unregister(listener);
}
@Override
public CompletionStage<Void> closeFuture() {
return delegate.closeFuture();
}
@Override
public CompletionStage<Void> closeAsync() {
return delegate.closeAsync();
}
@Override
public CompletionStage<Void> forceCloseAsync() {
return delegate.forceCloseAsync();
}
}