org.apache.solr.handler.V2UpdateRequestHandler Maven / Gradle / Ivy
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.solr.handler;
import java.util.Collection;
import org.apache.solr.api.AnnotatedApi;
import org.apache.solr.api.Api;
import org.apache.solr.handler.admin.api.UpdateAPI;
/**
* An extension of {@link UpdateRequestHandler} used solely to register the v2 /update APIs
*
* At core-load time, Solr looks at each 'plugin' in ImplicitPlugins.json, fetches the v2 {@link
* Api} implementations associated with each RequestHandler, and registers them in an {@link
* org.apache.solr.api.ApiBag}. Since UpdateRequestHandler is mentioned multiple times in
* ImplicitPlugins.json (once for each update API: /update, /update/json, etc.), this would cause
* the v2 APIs to be registered in duplicate. To avoid this, Solr has this RequestHandler, whose
* only purpose is to register the v2 APIs that conceptually should be associated with
* UpdateRequestHandler.
*/
public class V2UpdateRequestHandler extends UpdateRequestHandler {
@Override
public Collection getApis() {
return AnnotatedApi.getApis(new UpdateAPI(this));
}
@Override
public Boolean registerV1() {
return Boolean.FALSE;
}
@Override
public Boolean registerV2() {
return Boolean.TRUE;
}
}