org.graylog2.indexer.IndexSetStatsCreator Maven / Gradle / Ivy
/*
* Copyright (C) 2020 Graylog, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* .
*/
package org.graylog2.indexer;
import com.fasterxml.jackson.databind.JsonNode;
import org.graylog2.indexer.indices.Indices;
import org.graylog2.rest.resources.system.indexer.responses.IndexSetStats;
import javax.inject.Inject;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.StreamSupport;
public class IndexSetStatsCreator {
private final Indices indices;
@Inject
public IndexSetStatsCreator(final Indices indices) {
this.indices = indices;
}
public IndexSetStats getForIndexSet(final IndexSet indexSet) {
final Set closedIndices = indices.getClosedIndices(indexSet);
final List primaries = StreamSupport.stream(indices.getIndexStats(indexSet).spliterator(), false)
.map(json -> json.get("primaries"))
.collect(Collectors.toList());
final long documents = primaries.stream()
.map(json -> json.path("docs").path("count").asLong())
.reduce(0L, Long::sum);
final long size = primaries.stream()
.map(json -> json.path("store").path("size_in_bytes").asLong())
.reduce(0L, Long::sum);
return IndexSetStats.create(primaries.size() + closedIndices.size(), documents, size);
}
}