/*
* ModeShape (http://www.modeshape.org)
*
* Licensed 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.modeshape.jcr.cache.document;
import java.util.Objects;
import org.modeshape.common.annotation.Immutable;
import org.modeshape.common.annotation.ThreadSafe;
import org.modeshape.common.util.SecureHash;
import org.modeshape.jcr.value.Name;
/**
* Abstraction for the ID of a bucket.
*
* @author Horia Chiorean (hchiorea@redhat.com)
* @see BucketedChildReferences
*/
@ThreadSafe
@Immutable
final class BucketId implements Comparable<BucketId> {
private final String id;
protected BucketId( Name name, int length ) {
this(name.getString(), length);
}
protected BucketId( String nameString, int length ) {
String sha1 = SecureHash.sha1(nameString);
this.id = sha1.substring(0, length);
}
protected BucketId( String id ) {
this.id = id;
}
@Override
public int compareTo( BucketId o ) {
return id.compareTo(o.id);
}
@Override
public boolean equals( Object o ) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
BucketId bucketId = (BucketId)o;
return Objects.equals(id, bucketId.id);
}
@Override
public int hashCode() {
return id.hashCode();
}
@Override
public String toString() {
return id;
}
}