org.elasticsearch.action.support.master.MasterNodeReadOperationRequest Maven / Gradle / Ivy
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* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you 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 org.elasticsearch.action.support.master;
import org.elasticsearch.Version;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import java.io.IOException;
/**
* Base request for master based read operations that allows to read the cluster state from the local node if needed
*/
public abstract class MasterNodeReadOperationRequest extends MasterNodeOperationRequest {
protected boolean local = false;
@SuppressWarnings("unchecked")
public final T local(boolean local) {
this.local = local;
return (T) this;
}
public final boolean local() {
return local;
}
/**
* Reads the local flag
*/
protected void readLocal(StreamInput in) throws IOException {
readLocal(in, null);
}
/**
* Reads the local flag if on or after the specified min version or if the version is null.
*/
protected void readLocal(StreamInput in, Version minVersion) throws IOException {
if (minVersion == null || in.getVersion().onOrAfter(minVersion)) {
local = in.readBoolean();
}
}
/**
* writes the local flag
*/
protected void writeLocal(StreamOutput out) throws IOException {
writeLocal(out, null);
}
/**
* writes the local flag if on or after the specified min version or if the version is null.
*/
protected void writeLocal(StreamOutput out, Version minVersion) throws IOException {
if (minVersion == null || out.getVersion().onOrAfter(minVersion)) {
out.writeBoolean(local);
}
}
}