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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.docproc;
import ai.vespa.metrics.ContainerMetrics;
import com.yahoo.component.ComponentId;
import com.yahoo.concurrent.SystemTimer;
import com.yahoo.docproc.impl.DocumentOperationWrapper;
import com.yahoo.docproc.jdisc.metric.NullMetric;
import com.yahoo.docproc.proxy.ProxyDocument;
import com.yahoo.docproc.proxy.ProxyDocumentUpdate;
import com.yahoo.document.Document;
import com.yahoo.document.DocumentOperation;
import com.yahoo.document.DocumentPut;
import com.yahoo.document.DocumentUpdate;
import com.yahoo.jdisc.Metric;
import java.util.List;
import java.util.Map;
/**
* A document processor to call - an item on a {@link com.yahoo.docproc.CallStack}.
*
* @author bratseth
* @author Einar M R Rosenvinge
*/
public class Call implements Cloneable {
private final DocumentProcessor processor;
private final String PROC_TIME_METRIC_NAME = ContainerMetrics.DOCPROC_PROC_TIME.baseName();
private final String PROC_DOC_COUNT_METRIC_NAME = ContainerMetrics.DOCPROC_DOCUMENTS.baseName();
private final Metric metric;
private final Metric.Context metricContext;
public Call(DocumentProcessor processor) {
this(processor, new NullMetric());
}
/**
* Creates a new call to a processor with no arguments.
*
* @param processor the document processor to call
*/
public Call(DocumentProcessor processor, Metric metric) {
this(processor, "", metric);
}
public Call(DocumentProcessor processor, String chainName, Metric metric) {
this.processor = processor;
if (chainName == null)
chainName = "";
this.metric = metric;
this.metricContext = metric.createContext(Map.of(
"chain", chainName,
"docproc", getDocumentProcessorId().stringValue()
));
}
@Override
public Object clone() {
try {
return super.clone();
} catch (CloneNotSupportedException e) {
throw new RuntimeException("Will not happen");
}
}
/**
* Returns the processor to call.
*
* @return a reference to the processor to call
*/
public DocumentProcessor getDocumentProcessor() {
return processor;
}
/**
* Returns the ID of the processor to call.
*
* @return the ID of the processor to call
*/
public ComponentId getDocumentProcessorId() {
return processor.getId();
}
/**
* The Document object the proc should work on. Normally the one in arguments, but could be a proxy object
* if schema mapping or @Accesses is in effect.
*
* <p>
* Public for testing
*/
public DocumentPut configDoc(DocumentProcessor docProc, DocumentPut documentPut) {
if ( ! docProc.getFieldMap().isEmpty() || docProc.hasAnnotations()) {
Document document = documentPut.getDocument();
document = new ProxyDocument(docProc, document, docProc.getDocMap(document.getDataType().getName()));
DocumentPut newDocumentPut = new DocumentPut(document);
newDocumentPut.setCondition(documentPut.getCondition());
documentPut = newDocumentPut;
}
return documentPut;
}
/**
* The DocumentUpdate object a processor should work on. The one in args, or schema mapped.
*
* @return a DocumentUpdate
*/
private DocumentUpdate configDocUpd(DocumentProcessor proc, DocumentUpdate docU) {
if (proc.getFieldMap().isEmpty()) return docU;
return new ProxyDocumentUpdate(docU, proc.getDocMap(docU.getDocumentType().getName()));
}
private void schemaMapProcessing(Processing processing) {
final List<DocumentOperation> documentOperations = processing.getDocumentOperations();
for (int i = 0; i < documentOperations.size(); i++) {
DocumentOperation op = documentOperations.get(i);
if (op instanceof DocumentPut) {
documentOperations.set(i, configDoc(processor, (DocumentPut) op));
} else if (op instanceof DocumentUpdate) {
documentOperations.set(i, configDocUpd(processor, (DocumentUpdate) op));
}
}
}
private void unwrapSchemaMapping(Processing processing) {
final List<DocumentOperation> documentOperations = processing.getDocumentOperations();
for (int i = 0; i < documentOperations.size(); i++) {
DocumentOperation documentOperation = documentOperations.get(i);
if (documentOperation instanceof DocumentPut) {
DocumentPut putOperation = (DocumentPut) documentOperation;
if (putOperation.getDocument() instanceof DocumentOperationWrapper) {
DocumentOperationWrapper proxy = (DocumentOperationWrapper) putOperation.getDocument();
documentOperations.set(i, new DocumentPut(putOperation, ((DocumentPut)proxy.getWrappedDocumentOperation()).getDocument()));
}
}
}
}
/**
* Call the DocumentProcessor of this call.
*
* @param processing the Processing object to use
* @return the progress of the DocumentProcessor that was called
*/
public DocumentProcessor.Progress call(Processing processing) {
try {
int numDocs = processing.getDocumentOperations().size();
schemaMapProcessing(processing);
long startTime = SystemTimer.INSTANCE.milliTime();
DocumentProcessor.Progress retval = processor.process(processing);
long procTime = SystemTimer.INSTANCE.milliTime() - startTime;
updateMetrics(procTime, numDocs);
return retval;
} finally {
unwrapSchemaMapping(processing);
}
}
public String toString() {
return "call to class " + processor.getClass().getName() + " (id: " + getDocumentProcessorId() + ")";
}
private void updateMetrics(long procTime, long documentCount) {
metric.set(PROC_DOC_COUNT_METRIC_NAME, documentCount, metricContext);
metric.set(PROC_TIME_METRIC_NAME, procTime, metricContext);
}
}
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