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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package ai.vespa.feed.client;
import java.util.Objects;
import java.util.Optional;
import java.util.OptionalLong;
import static java.util.Objects.requireNonNull;
/**
* Represents a Vespa document id
*
* @author jonmv
*/
public class DocumentId {
private final String documentType;
private final String namespace;
private final OptionalLong number;
private final Optional<String> group;
private final String userSpecific;
private DocumentId(String documentType, String namespace, OptionalLong number, Optional<String> group, String userSpecific) {
this.documentType = requireNonNull(documentType);
this.namespace = requireNonNull(namespace);
this.number = requireNonNull(number);
this.group = requireNonNull(group);
this.userSpecific = requireNonNull(userSpecific);
}
public static DocumentId of(String namespace, String documentType, String userSpecific) {
return new DocumentId(documentType, namespace, OptionalLong.empty(), Optional.empty(), userSpecific);
}
public static DocumentId of(String namespace, String documentType, long number, String userSpecific) {
return new DocumentId(documentType, namespace, OptionalLong.of(number), Optional.empty(), userSpecific);
}
public static DocumentId of(String namespace, String documentType, String group, String userSpecific) {
return new DocumentId(documentType, namespace, OptionalLong.empty(), Optional.of(group), userSpecific);
}
public static DocumentId of(String serialized) {
DocumentId parsed = parse(serialized);
if (parsed != null) return parsed;
throw new IllegalArgumentException("Document ID must be on the form " +
"'id:<namespace>:<document-type>:[n=<number>|g=<group>]:<user-specific>', " +
"but was '" + serialized + "'");
}
private static DocumentId parse(String serialized) {
int i, j = -1;
if ((j = serialized.indexOf(':', i = j + 1)) < i) return null;
if ( ! "id".equals(serialized.substring(i, j))) return null;
if ((j = serialized.indexOf(':', i = j + 1)) <= i) return null;
String namespace = serialized.substring(i, j);
if ((j = serialized.indexOf(':', i = j + 1)) <= i) return null;
String documentType = serialized.substring(i, j);
if ((j = serialized.indexOf(':', i = j + 1)) < i) return null;
String group = serialized.substring(i, j);
if (serialized.length() <= (i = j + 1)) return null;
String userSpecific = serialized.substring(i);
if (group.startsWith("n=") && group.length() > 2)
return DocumentId.of(namespace, documentType, Long.parseLong(group.substring(2)), userSpecific);
if (group.startsWith("g=") && group.length() > 2)
return DocumentId.of(namespace, documentType, group.substring(2), userSpecific);
if (group.isEmpty())
return DocumentId.of(namespace, documentType, userSpecific);
return null;
}
public String documentType() {
return documentType;
}
public String namespace() {
return namespace;
}
public OptionalLong number() {
return number;
}
public Optional<String> group() {
return group;
}
public String userSpecific() {
return userSpecific;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
DocumentId that = (DocumentId) o;
return documentType.equals(that.documentType) && namespace.equals(that.namespace) && number.equals(that.number) && group.equals(that.group) && userSpecific.equals(that.userSpecific);
}
@Override
public int hashCode() {
return Objects.hash(documentType, namespace, number, group, userSpecific);
}
@Override
public String toString() {
return "id:" + namespace + ":" + documentType + ":" +
(number.isPresent() ? "n=" + number.getAsLong() : group.map("g="::concat).orElse("")) +
":" + userSpecific;
}
}
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