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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.ingest.processor;
import org.elasticsearch.ingest.core.AbstractProcessor;
import org.elasticsearch.ingest.core.AbstractProcessorFactory;
import org.elasticsearch.ingest.core.IngestDocument;
import org.elasticsearch.ingest.core.TemplateService;
import org.elasticsearch.ingest.core.ConfigurationUtils;
import java.util.Map;
/**
* Processor that removes existing fields. Nothing happens if the field is not present.
*/
public class RemoveProcessor extends AbstractProcessor {
public static final String TYPE = "remove";
private final TemplateService.Template field;
RemoveProcessor(String tag, TemplateService.Template field) {
super(tag);
this.field = field;
}
public TemplateService.Template getField() {
return field;
}
@Override
public void execute(IngestDocument document) {
document.removeField(field);
}
@Override
public String getType() {
return TYPE;
}
public static class Factory extends AbstractProcessorFactory<RemoveProcessor> {
private final TemplateService templateService;
public Factory(TemplateService templateService) {
this.templateService = templateService;
}
@Override
public RemoveProcessor doCreate(String processorTag, Map<String, Object> config) throws Exception {
String field = ConfigurationUtils.readStringProperty(TYPE, processorTag, config, "field");
return new RemoveProcessor(processorTag, templateService.compile(field));
}
}
}
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