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Elasticsearch subproject :server
/*
* 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;
import org.elasticsearch.script.TemplateScript;
import java.util.Map;
import java.util.function.BiConsumer;
public class PipelineProcessor extends AbstractProcessor {
public static final String TYPE = "pipeline";
private final TemplateScript.Factory pipelineTemplate;
private final IngestService ingestService;
private PipelineProcessor(String tag, TemplateScript.Factory pipelineTemplate, IngestService ingestService) {
super(tag);
this.pipelineTemplate = pipelineTemplate;
this.ingestService = ingestService;
}
@Override
public void execute(IngestDocument ingestDocument, BiConsumer handler) {
String pipelineName = ingestDocument.renderTemplate(this.pipelineTemplate);
Pipeline pipeline = ingestService.getPipeline(pipelineName);
if (pipeline != null) {
ingestDocument.executePipeline(pipeline, handler);
} else {
handler.accept(null,
new IllegalStateException("Pipeline processor configured for non-existent pipeline [" + pipelineName + ']'));
}
}
@Override
public IngestDocument execute(IngestDocument ingestDocument) throws Exception {
throw new UnsupportedOperationException("this method should not get executed");
}
Pipeline getPipeline(IngestDocument ingestDocument) {
String pipelineName = ingestDocument.renderTemplate(this.pipelineTemplate);
return ingestService.getPipeline(pipelineName);
}
@Override
public String getType() {
return TYPE;
}
TemplateScript.Factory getPipelineTemplate() {
return pipelineTemplate;
}
public static final class Factory implements Processor.Factory {
private final IngestService ingestService;
public Factory(IngestService ingestService) {
this.ingestService = ingestService;
}
@Override
public PipelineProcessor create(Map registry, String processorTag,
Map config) throws Exception {
TemplateScript.Factory pipelineTemplate =
ConfigurationUtils.readTemplateProperty(TYPE, processorTag, config, "name", ingestService.getScriptService());
return new PipelineProcessor(processorTag, pipelineTemplate, ingestService);
}
}
}