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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.schema.derived;
import com.yahoo.config.application.api.DeployLogger;
import com.yahoo.document.DataType;
import com.yahoo.prelude.fastsearch.DocsumDefinitionSet;
import com.yahoo.schema.Schema;
import com.yahoo.vespa.config.search.SummaryConfig;
import com.yahoo.vespa.documentmodel.DocumentSummary;
import com.yahoo.vespa.documentmodel.SummaryField;
import com.yahoo.vespa.documentmodel.SummaryTransform;
import java.util.Collections;
import java.util.Map;
import java.util.logging.Level;
/**
* A summary derived from a search definition.
* Each summary definition have at least one summary, the default
* which has the same name as the search definition.
*
* @author bratseth
*/
public class SummaryClass extends Derived {
public static final String DOCUMENT_ID_FIELD = "documentid";
private final int id;
/** True if this summary class needs to access summary information on disk */
private boolean accessingDiskSummary = false;
private final boolean rawAsBase64;
private final boolean omitSummaryFeatures;
/** The summary fields of this indexed by name */
private final Map<String, SummaryClassField> fields;
private final DeployLogger deployLogger;
/**
* Creates a summary class from a search definition summary
*
* @param deployLogger a {@link DeployLogger}
*/
public SummaryClass(Schema schema, DocumentSummary summary, DeployLogger deployLogger) {
super(summary.getName());
this.deployLogger = deployLogger;
this.rawAsBase64 = schema.isRawAsBase64();
this.omitSummaryFeatures = summary.omitSummaryFeatures();
Map<String, SummaryClassField> fields = new java.util.LinkedHashMap<>();
deriveFields(schema, summary, fields);
deriveImplicitFields(summary, fields);
this.fields = Collections.unmodifiableMap(fields);
this.id = deriveId(summary.getName(), fields);
}
public int id() { return id; }
/** MUST be called after all other fields are added */
private void deriveImplicitFields(DocumentSummary summary, Map<String, SummaryClassField> fields) {
if (summary.getName().equals("default")) {
addField(SummaryClass.DOCUMENT_ID_FIELD, DataType.STRING, SummaryTransform.DOCUMENT_ID, fields);
}
}
private void deriveFields(Schema schema, DocumentSummary summary, Map<String, SummaryClassField> fields) {
for (SummaryField summaryField : summary.getSummaryFields().values()) {
if (!accessingDiskSummary && schema.isAccessingDiskSummary(summaryField)) {
accessingDiskSummary = true;
}
addField(summaryField.getName(), summaryField.getDataType(), summaryField.getTransform(), fields);
}
}
private void addField(String name, DataType type,
SummaryTransform transform,
Map<String, SummaryClassField> fields) {
if (fields.containsKey(name)) {
SummaryClassField sf = fields.get(name);
if ( SummaryClassField.convertDataType(type, transform, rawAsBase64) != sf.getType()) {
deployLogger.logApplicationPackage(Level.WARNING, "Conflicting definition of field " + name +
". " + "Declared as type " + sf.getType() + " and " + type);
}
} else {
fields.put(name, new SummaryClassField(name, type, transform, rawAsBase64));
}
}
public Map<String, SummaryClassField> fields() { return fields; }
private static int deriveId(String name, Map<String, SummaryClassField> fields) {
int hash = name.hashCode();
int number = 1;
for (var field : fields.values()) {
hash += number++ * (field.getName().hashCode() +
17 * field.getType().getName().hashCode());
}
hash = Math.abs(hash);
if (hash == DocsumDefinitionSet.SLIME_MAGIC_ID)
hash++;
return hash;
}
public SummaryConfig.Classes.Builder getSummaryClassConfig() {
SummaryConfig.Classes.Builder classBuilder = new SummaryConfig.Classes.Builder();
classBuilder.
id(id).
name(getName()).
omitsummaryfeatures(omitSummaryFeatures);
for (SummaryClassField field : fields.values() ) {
classBuilder.fields(new SummaryConfig.Classes.Fields.Builder().
name(field.getName()).
type(field.getType().getName()));
}
return classBuilder;
}
@Override
public int hashCode() { return id; }
@Override
protected String getDerivedName() { return "summary"; }
@Override
public String toString() {
return "summary class '" + getName() + "'";
}
}
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