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Apache Solr (module: core)
/*
* 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.update.processor;
import java.util.Date;
import org.apache.solr.common.params.CommonParams;
import org.apache.solr.request.SolrQueryRequest;
import org.apache.solr.request.SolrRequestInfo;
import org.apache.solr.response.SolrQueryResponse;
/**
* An update processor that adds a newly generated Date
value of "NOW" to any document
* being added that does not already have a value in the specified field.
*
* In the example configuration below, if a document does not contain a value in the
* timestamp
field, a new Date
will be generated and added as the value of that
* field.
*
*
* <processor class="solr.TimestampUpdateProcessorFactory">
* <str name="fieldName">timestamp</str>
* </processor>
*
*
* @see Date
* @see CommonParams#NOW
* @since 4.0.0
*/
public class TimestampUpdateProcessorFactory extends AbstractDefaultValueUpdateProcessorFactory {
@Override
public UpdateRequestProcessor getInstance(
SolrQueryRequest req, SolrQueryResponse rsp, UpdateRequestProcessor next) {
return new DefaultValueUpdateProcessor(fieldName, next) {
@Override
public Object getDefaultValue() {
return SolrRequestInfo.getRequestInfo().getNOW();
}
};
}
}