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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.schema;
import com.yahoo.config.application.api.ApplicationPackage;
import com.yahoo.config.application.api.DeployLogger;
import com.yahoo.config.application.api.FileRegistry;
import com.yahoo.config.model.api.ModelContext;
import com.yahoo.config.model.application.provider.BaseDeployLogger;
import com.yahoo.config.model.deploy.TestProperties;
import com.yahoo.document.DataTypeName;
import com.yahoo.document.Field;
import com.yahoo.schema.derived.SummaryClass;
import com.yahoo.schema.document.Attribute;
import com.yahoo.schema.document.ImmutableSDField;
import com.yahoo.schema.document.ImportedField;
import com.yahoo.schema.document.ImportedFields;
import com.yahoo.schema.document.SDDocumentType;
import com.yahoo.schema.document.SDField;
import com.yahoo.schema.document.Stemming;
import com.yahoo.schema.document.TemporaryImportedFields;
import com.yahoo.searchlib.rankingexpression.Reference;
import com.yahoo.vespa.documentmodel.DocumentSummary;
import com.yahoo.vespa.documentmodel.SummaryField;
import java.io.Reader;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import java.util.TreeMap;
import java.util.logging.Level;
import java.util.stream.Stream;
/**
* A schema contains a document type, additional fields, rank profiles and document summaries.
*
* @author bratseth
*/
// TODO: Make a class owned by this, for each of these responsibilities:
// Managing indexes, managing attributes, managing summary classes.
// Ensure that after the processing step, all implicit instances of the above types are explicitly represented
public class Schema implements ImmutableSchema {
private static final String SD_DOC_FIELD_NAME = "sddocname";
private static final List RESERVED_NAMES = List.of(
"index", "index_url", "summary", "attribute", "select_input", "host", SummaryClass.DOCUMENT_ID_FIELD,
"position", "split_foreach", "tokenize", "if", "else", "switch", "case", SD_DOC_FIELD_NAME, "relevancy");
/** The unique name of this schema */
private String name;
/** The application package this is constructed from */
private final ApplicationPackage applicationPackage;
/** The name of the schema this should inherit all the content of, if any */
private final Optional inherited;
/** True if this doesn't define a search, just a document type */
private final boolean documentsOnly;
private Boolean rawAsBase64 = null;
/** The stemming setting of this schema. Default is BEST. */
private Stemming stemming = null;
private final FieldSets fieldSets = new FieldSets(Optional.of(this));
/** The document contained in this schema */
private SDDocumentType documentType;
/** The extra fields of this schema */
private final Map fields = new LinkedHashMap<>();
private final Map indices = new LinkedHashMap<>();
/** The explicitly defined summaries of this schema. _Must_ preserve order. */
private final Map summaries = new LinkedHashMap<>();
/** External ranking expression files of this */
private final LargeRankingExpressions largeRankingExpressions;
/** Constants that will be available in all rank profiles. */
// TODO: Remove on Vespa 9: Should always be in a rank profile
private final Map constants = new LinkedHashMap<>();
// TODO: Remove on Vespa 9: Should always be in a rank profile
private final Map onnxModels = new LinkedHashMap<>();
/** All imported fields of this (and parent schemas) */
// TODO: Use empty, not optional
// TODO: Merge this and importedFields
private final Optional temporaryImportedFields = Optional.of(new TemporaryImportedFields(this));
/** The resulting processed field */
private Optional importedFields = Optional.empty();
private final DeployLogger deployLogger;
private final ModelContext.Properties properties;
private Application owner;
/** Testing only */
public Schema(String name, ApplicationPackage applicationPackage) {
this(name, applicationPackage, Optional.empty(), null, new BaseDeployLogger(), new TestProperties());
}
public Schema(String name,
ApplicationPackage applicationPackage,
FileRegistry fileRegistry,
DeployLogger deployLogger,
ModelContext.Properties properties) {
this(name, applicationPackage, Optional.empty(), fileRegistry, deployLogger, properties);
}
/**
* Creates a schema
*
* @param name of the schema
* @param inherited the schema this inherits, if any
*/
public Schema(String name,
ApplicationPackage applicationPackage,
Optional inherited,
FileRegistry fileRegistry,
DeployLogger deployLogger,
ModelContext.Properties properties) {
this(inherited, applicationPackage, fileRegistry, deployLogger, properties, false);
this.name = Objects.requireNonNull(name, "A schema must have a name");
}
protected Schema(ApplicationPackage applicationPackage, FileRegistry fileRegistry,
DeployLogger deployLogger, ModelContext.Properties properties) {
this(Optional.empty(), applicationPackage, fileRegistry, deployLogger, properties, true);
}
private Schema(Optional inherited,
ApplicationPackage applicationPackage,
FileRegistry fileRegistry,
DeployLogger deployLogger,
ModelContext.Properties properties,
boolean documentsOnly) {
this.inherited = inherited;
this.applicationPackage = applicationPackage;
this.deployLogger = deployLogger;
this.properties = properties;
this.documentsOnly = documentsOnly;
largeRankingExpressions = new LargeRankingExpressions(fileRegistry);
}
/**
* Assigns the owner of this
*
* @throws IllegalStateException if an owner is already assigned
*/
public void setOwner(Application owner) {
if (this.owner != null)
throw new IllegalStateException("Cannot reassign the owner of " + this);
this.owner = owner;
}
protected void setName(String name) { this.name = name; }
@Override
public String getName() {return name; }
/** Returns true if this only defines a document type, not a full schema */
public boolean isDocumentsOnly() {
return documentsOnly;
}
@Override
public Optional inherited() {
return inherited.map(name -> owner.schemas().get(name));
}
/**
* Returns true if 'raw' fields shall be presented as base64 in summary
* Note that this is temporary and will disappear on Vespa 8 as it will become default, and only option.
*
* @return true if raw shall be encoded as base64 in summary
*/
public boolean isRawAsBase64() {
if (rawAsBase64 != null) return rawAsBase64;
if (inherited.isEmpty()) return true;
return requireInherited().isRawAsBase64();
}
public void enableRawAsBase64(boolean value) { rawAsBase64 = value; }
/**
* Sets the stemming default of fields. Default is ALL
*
* @param stemming set default stemming for this schema
* @throws NullPointerException if this is attempted set to null
*/
public void setStemming(Stemming stemming) {
this.stemming = Objects.requireNonNull(stemming, "Stemming cannot be null");
}
/** Returns whether fields should be stemmed by default or not. Default is BEST. This is never null. */
public Stemming getStemming() {
if (stemming != null) return stemming;
if (inherited.isEmpty()) return Stemming.BEST;
return requireInherited().getStemming();
}
/**
* Adds a document type which is defined in this search definition
*
* @param document the document type to add
*/
public void addDocument(SDDocumentType document) {
if (documentType != null) {
throw new IllegalArgumentException("Schema cannot have more than one document");
}
documentType = document;
}
@Override
public LargeRankingExpressions rankExpressionFiles() { return largeRankingExpressions; }
public void add(RankProfile.Constant constant) {
constants.put(constant.name(), constant);
}
/** Returns an unmodifiable map of the constants declared in this. */
public Map declaredConstants() { return constants; }
/** Returns an unmodifiable map of the constants available in this. */
@Override
public Map constants() {
if (inherited().isEmpty()) return Collections.unmodifiableMap(constants);
if (constants.isEmpty()) return inherited().get().constants();
Map allConstants = new LinkedHashMap<>(inherited().get().constants());
allConstants.putAll(constants);
return allConstants;
}
public void add(OnnxModel model) {
onnxModels.put(model.getName(), model);
}
/** Returns an unmodifiable map of the onnx models declared in this. */
public Map declaredOnnxModels() { return onnxModels; }
/** Returns an unmodifiable map of the onnx models available in this. */
@Override
public Map onnxModels() {
if (inherited().isEmpty()) return Collections.unmodifiableMap(onnxModels);
if (onnxModels.isEmpty()) return inherited().get().onnxModels();
Map allModels = new LinkedHashMap<>(inherited().get().onnxModels());
allModels.putAll(onnxModels);
return allModels;
}
public Optional temporaryImportedFields() {
return temporaryImportedFields;
}
public Optional importedFields() {
return importedFields;
}
public void setImportedFields(ImportedFields importedFields) {
this.importedFields = Optional.of(importedFields);
}
@Override
public Stream allImportedFields() {
return importedFields
.map(fields -> fields.fields().values().stream())
.orElse(Stream.empty())
.map(field -> field.asImmutableSDField());
}
@Override
public ImmutableSDField getField(String name) {
ImmutableSDField field = getConcreteField(name);
if (field != null) return field;
return allImportedFields()
.filter(f -> f.getName().equals(name))
.findFirst()
.orElse(null);
}
@Override
public List allFieldsList() {
List all = new ArrayList<>(extraFieldList());
for (Field field : documentType.fieldSet()) {
all.add((ImmutableSDField) field);
}
if (importedFields.isPresent()) {
for (ImportedField imported : importedFields.get().fields().values()) {
all.add(imported.asImmutableSDField());
}
}
return all;
}
/**
* Gets a document from this search definition
*
* @param name the name of the document to return
* @return the contained or used document type, or null if there is no such document
*/
public SDDocumentType getDocument(String name) {
if (documentType != null && name.equals(documentType.getName())) {
return documentType;
}
return null;
}
/** Returns true if the document has been added. */
public boolean hasDocument() {
return documentType != null;
}
/** Returns the document in this search. */
@Override
public SDDocumentType getDocument() {
return documentType;
}
/**
* Returns a list of all the fields of this search definition, that is all fields in all documents, in the documents
* they inherit, and all extra fields. The caller receives ownership to the list - subsequent changes to it will not
* impact this
*/
@Override
public List allConcreteFields() {
List allFields = new ArrayList<>();
allFields.addAll(extraFieldList());
for (Field field : documentType.fieldSet()) {
allFields.add((SDField)field);
}
return allFields;
}
/**
* Returns the content of a ranking expression file
*/
@Override
public Reader getRankingExpression(String fileName) {
return applicationPackage.getRankingExpression(fileName);
}
public Application application() { return owner; }
@Override
public ApplicationPackage applicationPackage() { return applicationPackage; }
@Override
public DeployLogger getDeployLogger() { return deployLogger; }
@Override
public ModelContext.Properties getDeployProperties() { return properties; }
/**
* Returns a field defined in this search definition or one if its documents. Fields in this search definition takes
* precedence over document fields having the same name
*
* @param name of the field
* @return the SDField representing the field
*/
@Override
public SDField getConcreteField(String name) {
SDField field = getExtraField(name);
if (field != null) return field;
return (SDField) documentType.getField(name);
}
/**
* Returns a field defined in one of the documents of this schema.
* This does not include the extra fields defined outside the document
* (those accessible through the getExtraField() method).
*
* @param name the name of the field to return
* @return the named field, or null if not found
*/
public SDField getDocumentField(String name) {
return (SDField) documentType.getField(name);
}
/**
* Adds an extra field of this search definition not contained in a document
*
* @param field to add to the schemas list of external fields
*/
public void addExtraField(SDField field) {
if (fields.containsKey(field.getName())) {
deployLogger.logApplicationPackage(Level.WARNING, "Duplicate field " + field.getName() + " in search definition " + getName());
} else {
field.setIsExtraField(true);
fields.put(field.getName(), field);
}
}
public Collection extraFieldList() {
if (inherited.isEmpty()) return fields.values();
var fields = new HashSet<>(requireInherited().extraFieldList());
fields.addAll(this.fields.values());
return fields;
}
public Collection allExtraFields() {
Map extraFields = new TreeMap<>();
if (inherited.isPresent())
requireInherited().allExtraFields().forEach(field -> extraFields.put(field.getName(), field));
for (Field field : documentType.fieldSet()) {
SDField sdField = (SDField) field;
if (sdField.isExtraField()) {
extraFields.put(sdField.getName(), sdField);
}
}
for (SDField field : extraFieldList()) {
extraFields.put(field.getName(), field);
}
return extraFields.values();
}
/**
* Returns a field by name, or null if it is not present
*
* @param fieldName the name of the external field to get
* @return the SDField of this name
*/
public SDField getExtraField(String fieldName) {
SDField field = fields.get(fieldName);
if (field != null) return field;
if (inherited.isEmpty()) return null;
return requireInherited().getExtraField(fieldName);
}
/**
* Adds an explicitly defined index to this search definition
*
* @param index the index to add
*/
public void addIndex(Index index) {
indices.put(index.getName(), index);
}
/**
* Returns an index, or null if no index with this name has had some explicit settings applied. Even if
* this returns null, the index may be implicitly defined by an indexing statement. This will return the
* index whether it is defined on this schema or on one of its fields.
*
* @param name the name of the index to get
* @return the index requested
*/
@Override
public Index getIndex(String name) {
List sameIndices = new ArrayList<>(1);
getSchemaIndex(name).ifPresent(sameIndices::add);
for (ImmutableSDField field : allConcreteFields()) {
if (field.getIndex(name) != null)
sameIndices.add(field.getIndex(name));
}
if (sameIndices.size() == 0) return null;
if (sameIndices.size() == 1) return sameIndices.get(0);
return consolidateIndices(sameIndices);
}
/** Returns the schema level index of this name, in this or any inherited schema, if any */
Optional getSchemaIndex(String name) {
if (indices.containsKey(name)) return Optional.of(indices.get(name));
if (inherited.isPresent()) return requireInherited().getSchemaIndex(name);
return Optional.empty();
}
public boolean existsIndex(String name) {
if (indices.get(name) != null)
return true;
if (inherited.isPresent() && requireInherited().existsIndex(name))
return true;
for (ImmutableSDField field : allConcreteFields()) {
if (field.existsIndex(name))
return true;
}
return false;
}
/**
* Consolidates a set of index settings for the same index into one
*
* @param indices the list of indexes to consolidate
* @return the consolidated index
*/
private Index consolidateIndices(List indices) {
Index first = indices.get(0);
Index consolidated = new Index(first.getName());
consolidated.setRankType(first.getRankType());
consolidated.setType(first.getType());
for (Index current : indices) {
if (current.isPrefix()) {
consolidated.setPrefix(true);
}
if (current.useInterleavedFeatures()) {
consolidated.setInterleavedFeatures(true);
}
if (consolidated.getRankType() == null) {
consolidated.setRankType(current.getRankType());
} else {
if (current.getRankType() != null && consolidated.getRankType() != current.getRankType())
deployLogger.logApplicationPackage(Level.WARNING, "Conflicting rank type settings for " +
first.getName() + " in " + this + ", using " +
consolidated.getRankType());
}
for (Iterator j = current.aliasIterator(); j.hasNext();) {
consolidated.addAlias(j.next());
}
}
return consolidated;
}
/** All explicitly defined indices, both on this schema itself (returned first) and all its fields */
@Override
public List getExplicitIndices() {
List allIndices = new ArrayList<>(indices.values());
if (inherited.isPresent()) {
for (Index inheritedIndex : requireInherited().getExplicitIndices()) {
if ( ! indices.containsKey(inheritedIndex.getName())) // child redefinitions shadows parents
allIndices.add(inheritedIndex);
}
}
for (ImmutableSDField field : allConcreteFields())
allIndices.addAll(field.getIndices().values());
return Collections.unmodifiableList(allIndices);
}
/** Adds an explicitly defined summary to this search definition */
public void addSummary(DocumentSummary summary) {
summaries.put(summary.getName(), summary);
}
/**
* Returns a summary class defined by this search definition, or null if no summary with this name is defined.
* The default summary, named "default" is always present.
*/
public DocumentSummary getSummary(String name) {
var summary = summaries.get(name);
if (summary != null) return summary;
if (inherited.isEmpty()) return null;
return requireInherited().getSummary(name);
}
/**
* Returns the first explicit instance found of a summary field with this name, or null if not present (implicitly
* or explicitly) in any summary class.
*/
public SummaryField getSummaryField(String name) {
for (DocumentSummary summary : summaries.values()) {
SummaryField summaryField = summary.getSummaryField(name);
if (summaryField != null) {
return summaryField;
}
}
if (inherited.isEmpty()) return null;
return requireInherited().getSummaryField(name);
}
/**
* Returns the first explicit instance found of a summary field with this name, or null if not present explicitly in
* any summary class
*
* @param name the name of the explicit summary field to get.
* @return the SummaryField found.
*/
public SummaryField getExplicitSummaryField(String name) {
for (DocumentSummary summary : summaries.values()) {
SummaryField summaryField = summary.getSummaryField(name);
if (summaryField != null && !summaryField.isImplicit())
return summaryField;
}
if (inherited.isEmpty()) return null;
return requireInherited().getExplicitSummaryField(name);
}
/**
* Summaries defined by fields of this search definition. The default summary, named "default", is always the first
* one in the returned iterator.
*/
public Map getSummaries() {
// Shortcuts
if (inherited.isEmpty()) return summaries;
if (summaries.isEmpty()) return requireInherited().getSummaries();
var allSummaries = new LinkedHashMap<>(requireInherited().getSummaries());
allSummaries.putAll(summaries);
return allSummaries;
}
/** Returns the summaries defines in this only, not any that are inherited. */
public Map getSummariesInThis() { return Collections.unmodifiableMap(summaries); }
/**
* Returns all summary fields, of all document summaries, which has the given field as source.
* The list becomes owned by the receiver.
*
* @param field the source field
* @return the list of summary fields found
*/
@Override
public List getSummaryFields(ImmutableSDField field) {
List summaryFields = inherited.isPresent()
? requireInherited().getSummaryFields(field)
: new java.util.ArrayList<>();
for (DocumentSummary documentSummary : summaries.values()) {
for (SummaryField summaryField : documentSummary.getSummaryFields().values()) {
if (summaryField.hasSource(field.getName())) {
boolean wanted = true;
for (var already : summaryFields) {
if (summaryField == already) wanted = false;
}
if (wanted) {
summaryFields.add(summaryField);
}
}
}
}
return summaryFields;
}
/**
* Returns one summary field for each summary field name. If there are multiple summary fields with the same
* name, the last one will be used. Multiple fields of the same name should all have the same content in a valid
* search definition, except from the destination set. So this method can be used for all summary handling except
* processing the destination set. The map becomes owned by the receiver.
*/
public Map getUniqueNamedSummaryFields() {
Map summaryFields = inherited.isPresent() ? requireInherited().getUniqueNamedSummaryFields()
: new java.util.LinkedHashMap<>();
for (DocumentSummary documentSummary : summaries.values()) {
for (SummaryField summaryField : documentSummary.getSummaryFields().values()) {
summaryFields.put(summaryField.getName(), summaryField);
}
}
return summaryFields;
}
/** Returns the first occurrence of an attribute having this name, or null if none */
public Attribute getAttribute(String name) {
for (ImmutableSDField field : allConcreteFields()) {
Attribute attribute = field.getAttributes().get(name);
if (attribute != null) {
return attribute;
}
}
return null;
}
@Override
public boolean equals(Object o) {
if (!(o instanceof Schema other)) {
return false;
}
return getName().equals(other.getName());
}
@Override
public int hashCode() {
return name.hashCode();
}
@Override
public String toString() {
return "schema '" + getName() + "'";
}
public boolean isAccessingDiskSummary(SummaryField field) {
if (!field.getTransform().isInMemory()) return true;
if (field.getSources().isEmpty()) return isAccessingDiskSummary(getName());
for (SummaryField.Source source : field.getSources()) {
if (isAccessingDiskSummary(source.getName()))
return true;
}
return false;
}
private boolean isAccessingDiskSummary(String source) {
SDField field = getConcreteField(source);
if (field == null) return false;
if (field.doesSummarying() && !field.doesAttributing()) return true;
return false;
}
public FieldSets fieldSets() { return fieldSets; }
private Schema inheritedSchema = null;
public void setInheritedSchema(Schema value) {
inheritedSchema = value;
}
/** Returns the schema inherited by this, or throws if none */
private Schema requireInherited() {
if (inheritedSchema != null) return inheritedSchema;
return owner.schemas().get(inherited.get());
}
public void validate(DeployLogger logger) {
if (inherited.isPresent()) {
if (! owner.schemas().containsKey(inherited.get()))
throw new IllegalArgumentException(this + " inherits '" + inherited.get() +
"', but this schema does not exist");
// Require schema and document type inheritance to be consistent to keep things simple
// and require it to be explicit, so we have the option to support other possibilities later
var parentDocument = owner.schemas().get(inherited.get()).getDocument();
if ( ! getDocument().inheritedTypes().containsKey(new DataTypeName(parentDocument.getName())))
throw new IllegalArgumentException(this + " inherits '" + inherited.get() +
"', but its document type does not inherit the parent's document type");
}
for (var summary : summaries.values())
summary.validate(logger);
}
/** Returns true if the given field name is a reserved name */
public static boolean isReservedName(String name) {
return RESERVED_NAMES.contains(name);
}
}
