/*
* 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.warmer;
import org.elasticsearch.cluster.AbstractDiffable;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.bytes.BytesArray;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.common.xcontent.XContentType;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Objects;
/**
*/
public class IndexWarmersMetaData extends AbstractDiffable<IndexMetaData.Custom> implements IndexMetaData.Custom {
public static final String TYPE = "warmers";
public static final IndexWarmersMetaData PROTO = new IndexWarmersMetaData();
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
IndexWarmersMetaData that = (IndexWarmersMetaData) o;
return entries.equals(that.entries);
}
@Override
public int hashCode() {
return entries.hashCode();
}
public static class Entry {
private final String name;
private final String[] types;
private final BytesReference source;
private final Boolean requestCache;
private final Boolean tokenRangesBitsetCache;
public Entry(String name, String[] types, Boolean requestCache, Boolean tokenRangesBitsetCache, BytesReference source) {
this.name = name;
this.types = types == null ? Strings.EMPTY_ARRAY : types;
this.source = source;
this.requestCache = requestCache;
this.tokenRangesBitsetCache = tokenRangesBitsetCache;
}
public String name() {
return this.name;
}
public String[] types() {
return this.types;
}
@Nullable
public BytesReference source() {
return this.source;
}
@Nullable
public Boolean requestCache() {
return this.requestCache;
}
@Nullable
public Boolean tokenRangesBitsetCache() {
return this.tokenRangesBitsetCache;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Entry entry = (Entry) o;
if (!name.equals(entry.name)) return false;
if (!Arrays.equals(types, entry.types)) return false;
if (!source.equals(entry.source)) return false;
return Objects.equals(requestCache, entry.requestCache);
}
@Override
public int hashCode() {
int result = name.hashCode();
result = 31 * result + Arrays.hashCode(types);
result = 31 * result + source.hashCode();
result = 31 * result + (requestCache != null ? requestCache.hashCode() : 0);
return result;
}
}
private final List<Entry> entries;
public IndexWarmersMetaData(Entry... entries) {
this.entries = Arrays.asList(entries);
}
public List<Entry> entries() {
return this.entries;
}
@Override
public String type() {
return TYPE;
}
@Override
public IndexWarmersMetaData readFrom(StreamInput in) throws IOException {
Entry[] entries = new Entry[in.readVInt()];
for (int i = 0; i < entries.length; i++) {
String name = in.readString();
String[] types = in.readStringArray();
BytesReference source = null;
if (in.readBoolean()) {
source = in.readBytesReference();
}
Boolean queryCache;
queryCache = in.readOptionalBoolean();
Boolean tokenRangesBitsetCache = in.readOptionalBoolean();
entries[i] = new Entry(name, types, queryCache, tokenRangesBitsetCache, source);
}
return new IndexWarmersMetaData(entries);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeVInt(entries().size());
for (Entry entry : entries()) {
out.writeString(entry.name());
out.writeStringArray(entry.types());
if (entry.source() == null) {
out.writeBoolean(false);
} else {
out.writeBoolean(true);
out.writeBytesReference(entry.source());
}
out.writeOptionalBoolean(entry.requestCache());
}
}
@Override
public IndexWarmersMetaData fromMap(Map<String, Object> map) throws IOException {
// if it starts with the type, remove it
if (map.size() == 1 && map.containsKey(TYPE)) {
map = (Map<String, Object>) map.values().iterator().next();
}
XContentBuilder builder = XContentFactory.smileBuilder().map(map);
try (XContentParser parser = XContentFactory.xContent(XContentType.SMILE).createParser(builder.bytes())) {
// move to START_OBJECT
parser.nextToken();
return fromXContent(parser);
}
}
@Override
public IndexWarmersMetaData fromXContent(XContentParser parser) throws IOException {
// we get here after we are at warmers token
String currentFieldName = null;
XContentParser.Token token;
List<Entry> entries = new ArrayList<>();
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token == XContentParser.Token.START_OBJECT) {
String name = currentFieldName;
List<String> types = new ArrayList<>(2);
BytesReference source = null;
Boolean queryCache = null;
Boolean tokenRangesBitsetCache = null;
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token == XContentParser.Token.START_ARRAY) {
if ("types".equals(currentFieldName)) {
while ((token = parser.nextToken()) != XContentParser.Token.END_ARRAY) {
types.add(parser.text());
}
}
} else if (token == XContentParser.Token.START_OBJECT) {
if ("source".equals(currentFieldName)) {
XContentBuilder builder = XContentFactory.jsonBuilder().map(parser.mapOrdered());
source = builder.bytes();
}
} else if (token == XContentParser.Token.VALUE_EMBEDDED_OBJECT) {
if ("source".equals(currentFieldName)) {
source = new BytesArray(parser.binaryValue());
}
} else if (token.isValue()) {
if ("requestCache".equals(currentFieldName) || "request_cache".equals(currentFieldName)) {
queryCache = parser.booleanValue();
}
} else if (token.isValue()) {
if ("tokenRangesBitsetCache".equals(currentFieldName) || "token_ranges_bitset_cache".equals(currentFieldName)) {
queryCache = parser.booleanValue();
}
}
}
entries.add(new Entry(name, types.size() == 0 ? Strings.EMPTY_ARRAY : types.toArray(new String[types.size()]), queryCache, tokenRangesBitsetCache, source));
}
}
return new IndexWarmersMetaData(entries.toArray(new Entry[entries.size()]));
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, ToXContent.Params params) throws IOException {
//No need, IndexMetaData already writes it
//builder.startObject(TYPE, XContentBuilder.FieldCaseConversion.NONE);
for (Entry entry : entries()) {
toXContent(entry, builder, params);
}
//No need, IndexMetaData already writes it
//builder.endObject();
return builder;
}
public static void toXContent(Entry entry, XContentBuilder builder, ToXContent.Params params) throws IOException {
boolean binary = params.paramAsBoolean("binary", false);
builder.startObject(entry.name(), XContentBuilder.FieldCaseConversion.NONE);
builder.field("types", entry.types());
if (entry.requestCache() != null) {
builder.field("requestCache", entry.requestCache());
}
builder.field("source");
if (binary) {
builder.value(entry.source());
} else {
Map<String, Object> mapping;
try (XContentParser parser = XContentFactory.xContent(entry.source()).createParser(entry.source())) {
mapping = parser.mapOrdered();
}
builder.map(mapping);
}
builder.endObject();
}
@Override
public IndexMetaData.Custom mergeWith(IndexMetaData.Custom other) {
IndexWarmersMetaData second = (IndexWarmersMetaData) other;
List<Entry> entries = new ArrayList<>();
entries.addAll(entries());
for (Entry secondEntry : second.entries()) {
boolean found = false;
for (Entry firstEntry : entries()) {
if (firstEntry.name().equals(secondEntry.name())) {
found = true;
break;
}
}
if (!found) {
entries.add(secondEntry);
}
}
return new IndexWarmersMetaData(entries.toArray(new Entry[entries.size()]));
}
}