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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.docprocs.indexing;
import com.yahoo.document.Document;
import com.yahoo.document.DocumentUpdate;
import com.yahoo.document.Field;
import com.yahoo.document.annotation.SpanTrees;
import com.yahoo.document.datatypes.Array;
import com.yahoo.document.datatypes.FieldValue;
import com.yahoo.document.datatypes.MapFieldValue;
import com.yahoo.document.datatypes.StringFieldValue;
import com.yahoo.document.datatypes.StructuredFieldValue;
import com.yahoo.document.datatypes.WeightedSet;
import com.yahoo.document.fieldpathupdate.AssignFieldPathUpdate;
import com.yahoo.document.fieldpathupdate.FieldPathUpdate;
import com.yahoo.document.update.FieldUpdate;
import com.yahoo.document.update.MapValueUpdate;
import com.yahoo.document.update.ValueUpdate;
import com.yahoo.vespa.indexinglanguage.AdapterFactory;
import com.yahoo.vespa.indexinglanguage.expressions.Expression;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
/**
* @author Simon Thoresen Hult
*/
public class DocumentScript {
private final String documentType;
private final Set<String> inputFields;
private final Expression expression;
public DocumentScript(String documentType, Collection<String> inputFields, Expression expression) {
this.documentType = documentType;
this.inputFields = new HashSet<>(inputFields);
this.expression = expression;
}
public Expression getExpression() { return expression; }
public Document execute(AdapterFactory adapterFactory, Document document) {
for (var i = document.iterator(); i.hasNext(); ) {
Map.Entry<Field, FieldValue> entry = i.next();
requireThatFieldIsDeclaredInDocument(entry.getKey());
removeAnyLinguisticsSpanTree(entry.getValue());
}
return expression.execute(adapterFactory, document);
}
public DocumentUpdate execute(AdapterFactory adapterFactory, DocumentUpdate update) {
for (FieldUpdate fieldUpdate : update.fieldUpdates()) {
requireThatFieldIsDeclaredInDocument(fieldUpdate.getField());
for (ValueUpdate<?> valueUpdate : fieldUpdate.getValueUpdates()) {
removeAnyLinguisticsSpanTree(valueUpdate);
}
}
for (FieldPathUpdate fieldUpdate : update.fieldPathUpdates()) {
requireThatFieldIsDeclaredInDocument(fieldUpdate.getFieldPath().get(0).getFieldRef());
if (fieldUpdate instanceof AssignFieldPathUpdate) {
removeAnyLinguisticsSpanTree(((AssignFieldPathUpdate)fieldUpdate).getFieldValue());
}
}
return Expression.execute(expression, adapterFactory, update);
}
private void requireThatFieldIsDeclaredInDocument(Field field) {
if (field != null && !inputFields.contains(field.getName())) {
throw new IllegalArgumentException("Field '" + field.getName() + "' is not part of the declared document " +
"type '" + documentType + "'.");
}
}
private void removeAnyLinguisticsSpanTree(ValueUpdate<?> valueUpdate) {
if (valueUpdate instanceof MapValueUpdate) {
removeAnyLinguisticsSpanTree(((MapValueUpdate)valueUpdate).getUpdate());
} else {
removeAnyLinguisticsSpanTree(valueUpdate.getValue());
}
}
private void removeAnyLinguisticsSpanTree(FieldValue value) {
if (value instanceof StringFieldValue) {
((StringFieldValue)value).removeSpanTree(SpanTrees.LINGUISTICS);
} else if (value instanceof Array<?> arr) {
for (FieldValue fieldValue : arr.getValues()) {
removeAnyLinguisticsSpanTree(fieldValue);
}
} else if (value instanceof WeightedSet<?> wset) {
for (FieldValue fieldValue : wset.keySet()) {
removeAnyLinguisticsSpanTree(fieldValue);
}
} else if (value instanceof MapFieldValue<?, ?> map) {
for (Map.Entry<?, ?> entry : map.entrySet()) {
removeAnyLinguisticsSpanTree((FieldValue)entry.getKey());
removeAnyLinguisticsSpanTree((FieldValue)entry.getValue());
}
} else if (value instanceof StructuredFieldValue struct) {
for (Iterator<Map.Entry<Field, FieldValue>> it = struct.iterator(); it.hasNext();) {
removeAnyLinguisticsSpanTree(it.next().getValue());
}
}
}
@Override
public String toString() {
return "indexing script for '" + documentType + "' given inputs " + inputFields + ": " + expression;
}
}
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