/*
* 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.index.fielddata;
import org.elasticsearch.common.FieldMemoryStats;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Streamable;
import org.elasticsearch.common.unit.ByteSizeValue;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import java.io.IOException;
import java.util.Objects;
public class FieldDataStats implements Streamable, ToXContent {
private static final String FIELDDATA = "fielddata";
private static final String MEMORY_SIZE = "memory_size";
private static final String MEMORY_SIZE_IN_BYTES = "memory_size_in_bytes";
private static final String EVICTIONS = "evictions";
private static final String FIELDS = "fields";
long memorySize;
long evictions;
@Nullable
FieldMemoryStats fields;
public FieldDataStats() {
}
public FieldDataStats(long memorySize, long evictions, @Nullable FieldMemoryStats fields) {
this.memorySize = memorySize;
this.evictions = evictions;
this.fields = fields;
}
public void add(FieldDataStats stats) {
this.memorySize += stats.memorySize;
this.evictions += stats.evictions;
if (stats.fields != null) {
if (fields == null) {
fields = stats.fields.copy();
} else {
fields.add(stats.fields);
}
}
}
public long getMemorySizeInBytes() {
return this.memorySize;
}
public ByteSizeValue getMemorySize() {
return new ByteSizeValue(memorySize);
}
public long getEvictions() {
return this.evictions;
}
@Nullable
public FieldMemoryStats getFields() {
return fields;
}
@Override
public void readFrom(StreamInput in) throws IOException {
memorySize = in.readVLong();
evictions = in.readVLong();
fields = in.readOptionalWriteable(FieldMemoryStats::new);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeVLong(memorySize);
out.writeVLong(evictions);
out.writeOptionalWriteable(fields);
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject(FIELDDATA);
builder.byteSizeField(MEMORY_SIZE_IN_BYTES, MEMORY_SIZE, memorySize);
builder.field(EVICTIONS, getEvictions());
if (fields != null) {
fields.toXContent(builder, FIELDS, MEMORY_SIZE_IN_BYTES, MEMORY_SIZE);
}
builder.endObject();
return builder;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
FieldDataStats that = (FieldDataStats) o;
return memorySize == that.memorySize &&
evictions == that.evictions &&
Objects.equals(fields, that.fields);
}
@Override
public int hashCode() {
return Objects.hash(memorySize, evictions, fields);
}
}