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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.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 Simon Thoresen Hult
*/
@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 update) {
List<UpdateAdapter> ret = new ArrayList<>();
DocumentType docType = update.getDocumentType();
DocumentId docId = update.getId();
Document complete = new Document(docType, update.getId());
for (FieldPathUpdate fieldUpd : update) {
try {
if (FieldPathUpdateHelper.isComplete(fieldUpd)) {
// A 'complete' field path update is basically a regular top-level field update
// in wolf's clothing. Convert it to a regular field update to be friendlier
// towards the search core backend.
FieldPathUpdateHelper.applyUpdate(fieldUpd, complete);
} else {
ret.add(new IdentityFieldPathUpdateAdapter(fieldUpd, newDocumentAdapter(complete, true)));
}
} catch (NullPointerException e) {
throw new IllegalArgumentException("Exception during handling of update '" + fieldUpd +
"' to field '" + fieldUpd.getFieldPath() + "'", e);
}
}
for (FieldUpdate fieldUpdate : update.fieldUpdates()) {
Field field = fieldUpdate.getField();
for (ValueUpdate valueUpdate : fieldUpdate.getValueUpdates()) {
try {
if (FieldUpdateHelper.isComplete(field, valueUpdate)) {
FieldUpdateHelper.applyUpdate(field, valueUpdate, complete);
} else {
Document partial = FieldUpdateHelper.newPartialDocument(docType, docId, field, valueUpdate);
ret.add(FieldUpdateAdapter.fromPartialUpdate(expressionSelector.selectExpression(docType, field.getName()),
newDocumentAdapter(partial, true),
valueUpdate));
}
} catch (NullPointerException e) {
throw new IllegalArgumentException("Exception during handling of update '" + valueUpdate +
"' to field '" + field + "'", e);
}
}
}
ret.add(FieldUpdateAdapter.fromCompleteUpdate(newDocumentAdapter(complete, true)));
return ret;
}
}
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