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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.model.content;
import com.yahoo.documentmodel.NewDocumentType;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import static java.util.stream.Collectors.joining;
/**
* Performs the following validations:
* - Verify that all global documents have required redundancy
* - Verify that all referred documents are present in services.xml
* - Verify that all referred documents are global
*
* @author bjorncs
*/
public class GlobalDistributionValidator {
public void validate(Map<String, NewDocumentType> documentDefinitions,
Set<NewDocumentType> globallyDistributedDocuments) {
verifyReferredDocumentsArePresent(documentDefinitions);
verifyReferredDocumentsAreGlobal(documentDefinitions, globallyDistributedDocuments);
}
private static void verifyReferredDocumentsArePresent(Map<String, NewDocumentType> documentDefinitions) {
Set<NewDocumentType.Name> unknowDocuments = getReferencedDocuments(documentDefinitions)
.filter(name -> !documentDefinitions.containsKey(name.toString()))
.collect(Collectors.toCollection(() -> new LinkedHashSet<>()));
if (!unknowDocuments.isEmpty()) {
throw new IllegalArgumentException("The following document types are referenced from other documents, " +
"but are not listed in services.xml: " + asPrintableString(unknowDocuments.stream()));
}
}
private static void verifyReferredDocumentsAreGlobal(Map<String, NewDocumentType> documentDefinitions,
Set<NewDocumentType> globallyDistributedDocuments) {
Set<NewDocumentType> nonGlobalReferencedDocuments = getReferencedDocuments(documentDefinitions)
.map(name -> documentDefinitions.get(name.toString()))
.filter(documentType -> !globallyDistributedDocuments.contains(documentType))
.collect(Collectors.toCollection(() -> new LinkedHashSet<>()));
if (!nonGlobalReferencedDocuments.isEmpty()) {
throw new IllegalArgumentException("The following document types are referenced from other documents, " +
"but are not globally distributed: " + asPrintableString(toDocumentNameStream(nonGlobalReferencedDocuments)));
}
}
private static Stream<NewDocumentType.Name> getReferencedDocuments(Map<String, NewDocumentType> documentDefinitions) {
return documentDefinitions.values().stream()
.map(NewDocumentType::getDocumentReferences)
.flatMap(Set::stream);
}
private static Stream<NewDocumentType.Name> toDocumentNameStream(Set<NewDocumentType> globallyDistributedDocuments) {
return globallyDistributedDocuments.stream().map(NewDocumentType::getFullName);
}
private static String asPrintableString(Stream<NewDocumentType.Name> documentTypes) {
return documentTypes.map(name -> "'" + name + "'").collect(joining(", "));
}
}
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