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Elasticsearch subproject :server
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.transport;
import org.elasticsearch.Version;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Writeable;
import org.elasticsearch.core.TimeValue;
import org.elasticsearch.xcontent.ToXContentFragment;
import org.elasticsearch.xcontent.XContentBuilder;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import java.util.Objects;
/**
* This class encapsulates all remote cluster information to be rendered on
* {@code _remote/info} requests.
*/
public final class RemoteConnectionInfo implements ToXContentFragment, Writeable {
final ModeInfo modeInfo;
final TimeValue initialConnectionTimeout;
final String clusterAlias;
final boolean skipUnavailable;
public RemoteConnectionInfo(String clusterAlias, ModeInfo modeInfo, TimeValue initialConnectionTimeout, boolean skipUnavailable) {
this.clusterAlias = clusterAlias;
this.modeInfo = modeInfo;
this.initialConnectionTimeout = initialConnectionTimeout;
this.skipUnavailable = skipUnavailable;
}
public RemoteConnectionInfo(StreamInput input) throws IOException {
if (input.getVersion().onOrAfter(Version.V_7_6_0)) {
RemoteConnectionStrategy.ConnectionStrategy mode = input.readEnum(RemoteConnectionStrategy.ConnectionStrategy.class);
modeInfo = mode.getReader().read(input);
initialConnectionTimeout = input.readTimeValue();
clusterAlias = input.readString();
skipUnavailable = input.readBoolean();
} else {
List seedNodes = Arrays.asList(input.readStringArray());
int connectionsPerCluster = input.readVInt();
initialConnectionTimeout = input.readTimeValue();
int numNodesConnected = input.readVInt();
clusterAlias = input.readString();
skipUnavailable = input.readBoolean();
modeInfo = new SniffConnectionStrategy.SniffModeInfo(seedNodes, connectionsPerCluster, numNodesConnected);
}
}
public boolean isConnected() {
return modeInfo.isConnected();
}
public String getClusterAlias() {
return clusterAlias;
}
public ModeInfo getModeInfo() {
return modeInfo;
}
public TimeValue getInitialConnectionTimeout() {
return initialConnectionTimeout;
}
public boolean isSkipUnavailable() {
return skipUnavailable;
}
@Override
public void writeTo(StreamOutput out) throws IOException {
if (out.getVersion().onOrAfter(Version.V_7_6_0)) {
out.writeEnum(modeInfo.modeType());
modeInfo.writeTo(out);
out.writeTimeValue(initialConnectionTimeout);
} else {
if (modeInfo.modeType() == RemoteConnectionStrategy.ConnectionStrategy.SNIFF) {
SniffConnectionStrategy.SniffModeInfo sniffInfo = (SniffConnectionStrategy.SniffModeInfo) this.modeInfo;
out.writeStringArray(sniffInfo.seedNodes.toArray(new String[0]));
out.writeVInt(sniffInfo.maxConnectionsPerCluster);
out.writeTimeValue(initialConnectionTimeout);
out.writeVInt(sniffInfo.numNodesConnected);
} else {
out.writeStringArray(new String[0]);
out.writeVInt(0);
out.writeTimeValue(initialConnectionTimeout);
out.writeVInt(0);
}
}
out.writeString(clusterAlias);
out.writeBoolean(skipUnavailable);
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject(clusterAlias);
{
builder.field("connected", modeInfo.isConnected());
builder.field("mode", modeInfo.modeName());
modeInfo.toXContent(builder, params);
builder.field("initial_connect_timeout", initialConnectionTimeout);
builder.field("skip_unavailable", skipUnavailable);
}
builder.endObject();
return builder;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
RemoteConnectionInfo that = (RemoteConnectionInfo) o;
return skipUnavailable == that.skipUnavailable
&& Objects.equals(modeInfo, that.modeInfo)
&& Objects.equals(initialConnectionTimeout, that.initialConnectionTimeout)
&& Objects.equals(clusterAlias, that.clusterAlias);
}
@Override
public int hashCode() {
return Objects.hash(modeInfo, initialConnectionTimeout, clusterAlias, skipUnavailable);
}
public interface ModeInfo extends ToXContentFragment, Writeable {
boolean isConnected();
String modeName();
RemoteConnectionStrategy.ConnectionStrategy modeType();
}
}