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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.document;
import com.yahoo.schema.DocumentReference;
import java.util.Collection;
import java.util.Map;
/**
* A complex field that is imported from a concrete field in a referenced document type and given an alias name.
*/
public class ImportedComplexField extends ImportedField {
private Map<String, ImportedField> nestedFields;
public ImportedComplexField(String fieldName, DocumentReference reference, ImmutableSDField targetField) {
super(fieldName, reference, targetField);
nestedFields = new java.util.LinkedHashMap<>(0);
}
@Override
public ImmutableSDField asImmutableSDField() {
return new ImmutableImportedComplexSDField(this);
}
public void addNestedField(ImportedField importedField) {
String prefix = fieldName() + ".";
assert(importedField.fieldName().substring(0, prefix.length()).equals(prefix));
String suffix = importedField.fieldName().substring(prefix.length());
nestedFields.put(suffix, importedField);
}
public Collection<ImportedField> getNestedFields() {
return nestedFields.values();
}
public ImportedField getNestedField(String name) {
if (name.contains(".")) {
String superFieldName = name.substring(0,name.indexOf("."));
String subFieldName = name.substring(name.indexOf(".")+1);
ImportedField superField = nestedFields.get(superFieldName);
if (superField != null && superField instanceof ImportedComplexField) {
return ((ImportedComplexField)superField).getNestedField(subFieldName);
}
return null;
}
return nestedFields.get(name);
}
}
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