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Apache Solr (module: core)
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.schema;
import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.lucene.index.DocValuesType;
import org.apache.lucene.index.IndexOptions;
import org.apache.lucene.index.IndexableField;
import org.apache.lucene.index.IndexableFieldType;
import org.apache.lucene.index.VectorEncoding;
import org.apache.lucene.index.VectorSimilarityFunction;
import org.apache.lucene.search.SortField;
import org.apache.solr.common.SolrException;
import org.apache.solr.common.util.SimpleOrderedMap;
import org.apache.solr.response.TextResponseWriter;
/** Encapsulates all information about a Field in a Solr Schema */
public final class SchemaField extends FieldProperties implements IndexableFieldType {
private static final String FIELD_NAME = "name";
private static final String TYPE_NAME = "type";
private static final String DEFAULT_VALUE = "default";
final String name;
final FieldType type;
final int properties;
final String defaultValue;
boolean required = false; // this can't be final since it may be changed dynamically
/** Declared field property overrides */
Map args = Collections.emptyMap();
/**
* Create a new SchemaField with the given name and type, using all the default properties from
* the type.
*/
public SchemaField(String name, FieldType type) {
this(name, type, type.properties, null);
}
/**
* Create a new SchemaField from an existing one by using all of the properties of the prototype
* except the field name.
*/
public SchemaField(SchemaField prototype, String name) {
this(name, prototype.type, prototype.properties, prototype.defaultValue);
args = prototype.args;
}
/**
* Create a new SchemaField with the given name and type, and with the specified properties.
* Properties are *not* inherited from the type in this case, so users of this constructor should
* derive the properties from type.getSolrProperties() using all the default properties from the
* type.
*/
public SchemaField(String name, FieldType type, int properties, String defaultValue) {
this.name = name;
this.type = type;
this.properties = properties;
this.defaultValue = defaultValue;
// initialize with the required property flag
required = (properties & REQUIRED) != 0;
type.checkSchemaField(this);
}
public String getName() {
return name;
}
public FieldType getType() {
return type;
}
public int getProperties() {
return properties;
}
public boolean isUninvertible() {
return (properties & UNINVERTIBLE) != 0;
}
public boolean indexed() {
return (properties & INDEXED) != 0;
}
@Override
public boolean stored() {
return (properties & STORED) != 0;
}
public boolean hasDocValues() {
return (properties & DOC_VALUES) != 0;
}
public boolean storeTermVector() {
return (properties & STORE_TERMVECTORS) != 0;
}
public boolean storeTermPositions() {
return (properties & STORE_TERMPOSITIONS) != 0;
}
public boolean storeTermOffsets() {
return (properties & STORE_TERMOFFSETS) != 0;
}
public boolean storeTermPayloads() {
return (properties & STORE_TERMPAYLOADS) != 0;
}
@Override
public boolean omitNorms() {
return (properties & OMIT_NORMS) != 0;
}
public boolean omitTermFreqAndPositions() {
return (properties & OMIT_TF_POSITIONS) != 0;
}
public boolean omitPositions() {
return (properties & OMIT_POSITIONS) != 0;
}
public boolean storeOffsetsWithPositions() {
return (properties & STORE_OFFSETS) != 0;
}
public boolean useDocValuesAsStored() {
return (properties & USE_DOCVALUES_AS_STORED) != 0;
}
public boolean multiValued() {
return (properties & MULTIVALUED) != 0;
}
public boolean sortMissingFirst() {
return (properties & SORT_MISSING_FIRST) != 0;
}
public boolean sortMissingLast() {
return (properties & SORT_MISSING_LAST) != 0;
}
public boolean isRequired() {
return required;
}
public boolean isLarge() {
return (properties & LARGE_FIELD) != 0;
}
public Map getArgs() {
return Collections.unmodifiableMap(args);
}
// things that should be determined by field type, not set as options
boolean isTokenized() {
return (properties & TOKENIZED) != 0;
}
boolean isBinary() {
return (properties & BINARY) != 0;
}
public IndexableField createField(Object val) {
return type.createField(this, val);
}
public List createFields(Object val) {
return type.createFields(this, val);
}
/**
* If true, then use {@link #createFields(Object)}, else use {@link #createField} to save an extra
* allocation
*
* @return true if this field is a poly field
*/
public boolean isPolyField() {
return type.isPolyField();
}
@Override
public String toString() {
return name
+ "{type="
+ type.getTypeName()
+ ((defaultValue == null) ? "" : (",default=" + defaultValue))
+ ",properties="
+ propertiesToString(properties)
+ (required ? ", required=true" : "")
+ "}";
}
public void write(TextResponseWriter writer, String name, IndexableField val) throws IOException {
// name is passed in because it may be null if name should not be used.
type.write(writer, name, val);
}
/**
* Delegates to the FieldType for this field
*
* @see FieldType#getSortField
*/
public SortField getSortField(boolean top) {
return type.getSortField(this, top);
}
/**
* Expert/advanced method to get the field {@link org.apache.lucene.codecs.PostingsFormat}.
*
* @return The {@code postingsFormat} declared; or null if unspecified.
*/
public String getPostingsFormat() {
return (String) args.getOrDefault(POSTINGS_FORMAT, type.getPostingsFormat());
}
/**
* Expert/advanced method to get the field {@link org.apache.lucene.codecs.DocValuesFormat}.
*
* @return The {@code docValuesFormat} declared; or null if unspecified.
*/
public String getDocValuesFormat() {
return (String) args.getOrDefault(DOC_VALUES_FORMAT, type.getDocValuesFormat());
}
/**
* Sanity checks that the properties of this field type are plausible for a field that may be used
* in sorting, throwing an appropriate exception (including the field name) if it is not.
* FieldType subclasses can choose to call this method in their getSortField implementation
*
* @see FieldType#getSortField
*/
public void checkSortability() throws SolrException {
if (multiValued()
// if either of these are non-null, then we should not error
&& null == this.type.getDefaultMultiValueSelectorForSort(this, true)
&& null == this.type.getDefaultMultiValueSelectorForSort(this, false)) {
throw new SolrException(
SolrException.ErrorCode.BAD_REQUEST,
"can not sort on multivalued field: "
+ getName()
+ " of type: "
+ this.type.getTypeName());
}
if (!hasDocValues()) {
if (!(indexed() && isUninvertible() && null != this.type.getUninversionType(this))) {
throw new SolrException(
SolrException.ErrorCode.BAD_REQUEST,
"can not sort on a field w/o docValues unless it is indexed=true uninvertible=true and the type supports Uninversion: "
+ getName());
}
}
}
/**
* Sanity checks that the properties of this field type are plausible for a field that may be used
* to get a {@link org.apache.lucene.queries.function.valuesource.FieldCacheSource}, throwing an
* appropriate exception (including the field name) if it is not. FieldType subclasses can choose
* to call this method in their getValueSource implementation
*
* @see FieldType#getValueSource
*/
public void checkFieldCacheSource() throws SolrException {
if (multiValued()) {
throw new SolrException(
SolrException.ErrorCode.BAD_REQUEST,
"can not use FieldCache on multivalued field: " + getName());
}
if (!hasDocValues()) {
if (!(indexed() && isUninvertible() && null != this.type.getUninversionType(this))) {
throw new SolrException(
SolrException.ErrorCode.BAD_REQUEST,
"can not use FieldCache on a field w/o docValues unless it is indexed uninvertible=true and the type supports Uninversion: "
+ getName());
}
}
}
static SchemaField create(String name, FieldType ft, Map props) {
String defaultValue = null;
if (props.containsKey(DEFAULT_VALUE)) {
defaultValue = (String) props.get(DEFAULT_VALUE);
}
SchemaField field = new SchemaField(name, ft, calcProps(name, ft, props), defaultValue);
field.args = new HashMap<>(props);
return field;
}
/**
* Create a SchemaField w/ the props specified. Does not support a default value.
*
* @param name The name of the SchemaField
* @param ft The {@link org.apache.solr.schema.FieldType} of the field
* @param props The props. See {@link #calcProps(String, org.apache.solr.schema.FieldType,
* java.util.Map)}
* @param defValue The default Value for the field
* @return The SchemaField
* @see #create(String, FieldType, java.util.Map)
*/
static SchemaField create(String name, FieldType ft, int props, String defValue) {
return new SchemaField(name, ft, props, defValue);
}
static int calcProps(String name, FieldType ft, Map props) {
int trueProps = parseProperties(props, true, true);
int falseProps = parseProperties(props, false, true);
int p = ft.properties;
//
// If any properties were explicitly turned off, then turn off other properties
// that depend on that.
//
if (on(falseProps, STORED)) {
int pp = STORED | BINARY | LARGE_FIELD;
if (on(pp, trueProps)) {
throw new RuntimeException(
"SchemaField: " + name + " conflicting stored field options:" + props);
}
p &= ~pp;
}
if (on(falseProps, INDEXED)) {
int pp =
(INDEXED
| STORE_TERMVECTORS
| STORE_TERMPOSITIONS
| STORE_TERMOFFSETS
| STORE_TERMPAYLOADS
| UNINVERTIBLE);
if (on(pp, trueProps)) {
throw new RuntimeException(
"SchemaField: "
+ name
+ " conflicting 'true' field options for non-indexed field:"
+ props);
}
p &= ~pp;
}
if (on(falseProps, UNINVERTIBLE) && on(falseProps, DOC_VALUES)) {
int pp = (SORT_MISSING_FIRST | SORT_MISSING_LAST);
if (on(pp, trueProps)) {
throw new RuntimeException(
"SchemaField: "
+ name
+ " conflicting 'true' field options for non-docValues/non-uninvertible field:"
+ props);
}
p &= ~pp;
}
if (on(falseProps, INDEXED)) {
int pp = (OMIT_NORMS | OMIT_TF_POSITIONS | OMIT_POSITIONS);
if (on(pp, falseProps)) {
throw new RuntimeException(
"SchemaField: "
+ name
+ " conflicting 'false' field options for non-indexed field:"
+ props);
}
p &= ~pp;
}
if (on(trueProps, OMIT_TF_POSITIONS)) {
int pp = (OMIT_POSITIONS | OMIT_TF_POSITIONS);
if (on(pp, falseProps)) {
throw new RuntimeException(
"SchemaField: " + name + " conflicting tf and position field options:" + props);
}
p &= ~pp;
}
if (on(falseProps, STORE_TERMVECTORS)) {
int pp = (STORE_TERMVECTORS | STORE_TERMPOSITIONS | STORE_TERMOFFSETS | STORE_TERMPAYLOADS);
if (on(pp, trueProps)) {
throw new RuntimeException(
"SchemaField: " + name + " conflicting termvector field options:" + props);
}
p &= ~pp;
}
// override sort flags
if (on(trueProps, SORT_MISSING_FIRST)) {
p &= ~SORT_MISSING_LAST;
}
if (on(trueProps, SORT_MISSING_LAST)) {
p &= ~SORT_MISSING_FIRST;
}
p &= ~falseProps;
p |= trueProps;
return p;
}
public String getDefaultValue() {
return defaultValue;
}
@Override
public int hashCode() {
return name.hashCode();
}
@Override
public boolean equals(Object obj) {
return (obj instanceof SchemaField) && name.equals(((SchemaField) obj).name);
}
/**
* Get a map of property name -> value for this field. If showDefaults is true, include default
* properties (those inherited from the declared property type and not overridden in the field
* declaration).
*/
public SimpleOrderedMap