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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.search.suggest.completion;
import com.carrotsearch.hppc.ObjectLongHashMap;
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 org.elasticsearch.common.xcontent.XContentBuilderString;
import java.io.IOException;
/**
*
*/
public class CompletionStats implements Streamable, ToXContent {
private long sizeInBytes;
@Nullable
private ObjectLongHashMap fields;
public CompletionStats() {
}
public CompletionStats(long size, @Nullable ObjectLongHashMap fields) {
this.sizeInBytes = size;
this.fields = fields;
}
public long getSizeInBytes() {
return sizeInBytes;
}
public ByteSizeValue getSize() {
return new ByteSizeValue(sizeInBytes);
}
public ObjectLongHashMap getFields() {
return fields;
}
@Override
public void readFrom(StreamInput in) throws IOException {
sizeInBytes = in.readVLong();
if (in.readBoolean()) {
int size = in.readVInt();
fields = new ObjectLongHashMap<>(size);
for (int i = 0; i < size; i++) {
fields.put(in.readString(), in.readVLong());
}
}
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeVLong(sizeInBytes);
if (fields == null) {
out.writeBoolean(false);
} else {
out.writeBoolean(true);
out.writeVInt(fields.size());
assert !fields.containsKey(null);
final Object[] keys = fields.keys;
final long[] values = fields.values;
for (int i = 0; i < keys.length; i++) {
if (keys[i] != null) {
out.writeString((String) keys[i]);
out.writeVLong(values[i]);
}
}
}
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject(Fields.COMPLETION);
builder.byteSizeField(Fields.SIZE_IN_BYTES, Fields.SIZE, sizeInBytes);
if (fields != null) {
builder.startObject(Fields.FIELDS);
assert !fields.containsKey(null);
final Object[] keys = fields.keys;
final long[] values = fields.values;
for (int i = 0; i < keys.length; i++) {
if (keys[i] != null) {
builder.startObject((String) keys[i], XContentBuilder.FieldCaseConversion.NONE);
builder.byteSizeField(Fields.SIZE_IN_BYTES, Fields.SIZE, values[i]);
builder.endObject();
}
}
builder.endObject();
}
builder.endObject();
return builder;
}
public static CompletionStats readCompletionStats(StreamInput in) throws IOException {
CompletionStats stats = new CompletionStats();
stats.readFrom(in);
return stats;
}
static final class Fields {
static final XContentBuilderString COMPLETION = new XContentBuilderString("completion");
static final XContentBuilderString SIZE_IN_BYTES = new XContentBuilderString("size_in_bytes");
static final XContentBuilderString SIZE = new XContentBuilderString("size");
static final XContentBuilderString FIELDS = new XContentBuilderString("fields");
}
public void add(CompletionStats completion) {
if (completion == null) {
return;
}
sizeInBytes += completion.getSizeInBytes();
if (completion.fields != null) {
if (fields == null) {
fields = completion.fields.clone();
} else {
assert !completion.fields.containsKey(null);
final Object[] keys = completion.fields.keys;
final long[] values = completion.fields.values;
for (int i = 0; i < keys.length; i++) {
if (keys[i] != null) {
fields.addTo((String) keys[i], values[i]);
}
}
}
}
}
}