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new helper object to serialize the models to pmml format
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.spark.mllib.export
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import java.io.File
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import javax.xml.transform.stream.StreamResult
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import org.jpmml.model.JAXBUtil
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import org.apache.spark.mllib.export.pmml.PMMLModelExport
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object ModelExporter {
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/**
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* Export the input model to the stream result in PMML format
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*/
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def toPMML(inputModel: Any, streamResult: StreamResult): Unit = {
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val modelExport = ModelExportFactory.createModelExport(inputModel, ModelExportType.PMML)
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val pmml = modelExport.asInstanceOf[PMMLModelExport].getPmml()
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JAXBUtil.marshalPMML(pmml, streamResult)
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}
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/**
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* Export the input model to a local path in PMML format
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*/
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def toPMML(inputModel: Any, localPath: String): Unit = {
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toPMML(inputModel, new StreamResult(new File(localPath)))
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}
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}

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