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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.cluster.routing.allocation.command;
import org.elasticsearch.common.ParseField;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.xcontent.ObjectParser;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.index.shard.ShardId;
import java.io.IOException;
/**
* Abstract base class for allocating an unassigned primary shard to a node
*/
public abstract class BasePrimaryAllocationCommand extends AbstractAllocateAllocationCommand {
private static final String ACCEPT_DATA_LOSS_KEY = "accept_data_loss";
protected static <T extends Builder> ObjectParser<T, Void> createAllocatePrimaryParser(String command) {
ObjectParser<T, Void> parser = AbstractAllocateAllocationCommand.createAllocateParser(command);
parser.declareBoolean(Builder::setAcceptDataLoss, new ParseField(ACCEPT_DATA_LOSS_KEY));
return parser;
}
protected final boolean acceptDataLoss;
protected BasePrimaryAllocationCommand(ShardId shardId, String node, boolean acceptDataLoss) {
super(shardId, node);
this.acceptDataLoss = acceptDataLoss;
}
/**
* The operation only executes if the user explicitly agrees to possible data loss
*
* @return whether data loss is acceptable
*/
public boolean acceptDataLoss() {
return acceptDataLoss;
}
protected static abstract class Builder<T extends BasePrimaryAllocationCommand> extends AbstractAllocateAllocationCommand.Builder<T> {
protected boolean acceptDataLoss;
public void setAcceptDataLoss(boolean acceptDataLoss) {
this.acceptDataLoss = acceptDataLoss;
}
@Override
public Builder readFrom(StreamInput in) throws IOException {
super.readFrom(in);
acceptDataLoss = in.readBoolean();
return this;
}
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, ToXContent.Params params) throws IOException {
super.toXContent(builder, params);
builder.field(ACCEPT_DATA_LOSS_KEY, acceptDataLoss);
return builder;
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeBoolean(acceptDataLoss);
}
}
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