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// Copyright (C) 2016 The Android Open Source Project
//
// Licensed 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 com.google.gerrit.elasticsearch;
import static com.google.gerrit.server.index.account.AccountField.ID;
import com.google.gerrit.elasticsearch.ElasticMapping.MappingProperties;
import com.google.gerrit.elasticsearch.bulk.BulkRequest;
import com.google.gerrit.elasticsearch.bulk.IndexRequest;
import com.google.gerrit.elasticsearch.bulk.UpdateRequest;
import com.google.gerrit.index.QueryOptions;
import com.google.gerrit.index.Schema;
import com.google.gerrit.index.query.DataSource;
import com.google.gerrit.index.query.Predicate;
import com.google.gerrit.index.query.QueryParseException;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.server.account.AccountCache;
import com.google.gerrit.server.account.AccountState;
import com.google.gerrit.server.config.SitePaths;
import com.google.gerrit.server.index.IndexUtils;
import com.google.gerrit.server.index.account.AccountField;
import com.google.gerrit.server.index.account.AccountIndex;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.assistedinject.Assisted;
import java.io.IOException;
import java.util.Set;
import org.apache.http.HttpStatus;
import org.elasticsearch.client.Response;
public class ElasticAccountIndex extends AbstractElasticIndex<Account.Id, AccountState>
implements AccountIndex {
static class AccountMapping {
final MappingProperties accounts;
AccountMapping(Schema<AccountState> schema, ElasticQueryAdapter adapter) {
this.accounts = ElasticMapping.createMapping(schema, adapter);
}
}
private static final String ACCOUNTS = "accounts";
private final AccountMapping mapping;
private final Provider<AccountCache> accountCache;
private final Schema<AccountState> schema;
@Inject
ElasticAccountIndex(
ElasticConfiguration cfg,
SitePaths sitePaths,
Provider<AccountCache> accountCache,
ElasticRestClientProvider client,
@Assisted Schema<AccountState> schema) {
super(cfg, sitePaths, schema, client, ACCOUNTS);
this.accountCache = accountCache;
this.mapping = new AccountMapping(schema, client.adapter());
this.schema = schema;
}
@Override
public void replace(AccountState as) throws IOException {
BulkRequest bulk =
new IndexRequest(getId(as), indexName, type, client.adapter())
.add(new UpdateRequest<>(schema, as));
String uri = getURI(type, BULK);
Response response = postRequest(uri, bulk, getRefreshParam());
int statusCode = response.getStatusLine().getStatusCode();
if (statusCode != HttpStatus.SC_OK) {
throw new IOException(
String.format(
"Failed to replace account %s in index %s: %s",
as.getAccount().getId(), indexName, statusCode));
}
}
@Override
public DataSource<AccountState> getSource(Predicate<AccountState> p, QueryOptions opts)
throws QueryParseException {
JsonArray sortArray = getSortArray(AccountField.ID.getName());
return new ElasticQuerySource(p, opts.filterFields(IndexUtils::accountFields), type, sortArray);
}
@Override
protected String getDeleteActions(Account.Id a) {
return delete(type, a);
}
@Override
protected String getMappings() {
return getMappingsForSingleType(ACCOUNTS, mapping.accounts);
}
@Override
protected String getId(AccountState as) {
return as.getAccount().getId().toString();
}
@Override
protected AccountState fromDocument(JsonObject json, Set<String> fields) {
JsonElement source = json.get("_source");
if (source == null) {
source = json.getAsJsonObject().get("fields");
}
Account.Id id = new Account.Id(source.getAsJsonObject().get(ID.getName()).getAsInt());
// Use the AccountCache rather than depending on any stored fields in the document (of which
// there shouldn't be any). The most expensive part to compute anyway is the effective group
// IDs, and we don't have a good way to reindex when those change.
// If the account doesn't exist return an empty AccountState to represent the missing account
// to account the fact that the account exists in the index.
return accountCache.get().getEvenIfMissing(id);
}
}
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