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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.indexinglanguage;
import com.yahoo.document.*;
import com.yahoo.document.fieldpathupdate.FieldPathUpdate;
import com.yahoo.document.update.FieldUpdate;
import com.yahoo.document.update.ValueUpdate;
import com.yahoo.vespa.indexinglanguage.expressions.Expression;
import java.util.ArrayList;
import java.util.List;
/**
* @author <a href="mailto:simon@yahoo-inc.com">Simon Thoresen</a>
*/
@SuppressWarnings("rawtypes")
public class SimpleAdapterFactory implements AdapterFactory {
public static class SelectExpression {
public Expression selectExpression(DocumentType documentType, String fieldName) {
return null;
}
}
private final SelectExpression expressionSelector;
public SimpleAdapterFactory() {
this(new SelectExpression());
}
public SimpleAdapterFactory(SelectExpression expressionSelector) {
this.expressionSelector = expressionSelector;
}
@Override
public DocumentAdapter newDocumentAdapter(Document doc) {
return newDocumentAdapter(doc, false);
}
public DocumentAdapter newDocumentAdapter(Document doc, boolean isUpdate) {
if (isUpdate) {
return new SimpleDocumentAdapter(doc);
}
return new SimpleDocumentAdapter(doc, doc);
}
@Override
public List<UpdateAdapter> newUpdateAdapterList(DocumentUpdate upd) {
List<UpdateAdapter> ret = new ArrayList<>();
DocumentType docType = upd.getDocumentType();
DocumentId docId = upd.getId();
Document complete = new Document(docType, upd.getId());
for (FieldPathUpdate fieldUpd : upd) {
if (FieldPathUpdateHelper.isComplete(fieldUpd)) {
FieldPathUpdateHelper.applyUpdate(fieldUpd, complete);
} else {
Document partial = FieldPathUpdateHelper.newPartialDocument(docId, fieldUpd);
ret.add(new FieldPathUpdateAdapter(newDocumentAdapter(partial, true), fieldUpd));
}
}
for (FieldUpdate fieldUpd : upd.getFieldUpdates()) {
Field field = fieldUpd.getField();
for (ValueUpdate valueUpd : fieldUpd.getValueUpdates()) {
if (FieldUpdateHelper.isComplete(field, valueUpd)) {
FieldUpdateHelper.applyUpdate(field, valueUpd, complete);
} else {
Document partial = FieldUpdateHelper.newPartialDocument(docType, docId, field, valueUpd);
ret.add(FieldUpdateAdapter.fromPartialUpdate(expressionSelector.selectExpression(docType, field.getName()),newDocumentAdapter(partial, true), valueUpd));
}
}
}
ret.add(FieldUpdateAdapter.fromCompleteUpdate(newDocumentAdapter(complete, true)));
return ret;
}
}
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