/*
* (C) Copyright 2015 Nuxeo SA (http://nuxeo.com/) and others.
*
* 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.
*
* Contributors:
* Stephane Lacoin
*/
package org.nuxeo.ecm.core.api;
import java.io.InvalidObjectException;
import java.io.ObjectStreamException;
import java.security.Principal;
import org.nuxeo.runtime.transaction.TransactionHelper;
/**
* Document repository reference including the principal owner of the session.
*
* @since 7.10
* @author Stephane Lacoin at Nuxeo (aka matic)
*/
public class InstanceRef implements DocumentRef {
private static final long serialVersionUID = 1L;
final String repositoryName;
final Principal principal;
final DocumentRef ref;
transient DocumentModel referent;
public InstanceRef(DocumentModel doc, Principal principal) {
if (doc.getRef() == null) {
throw new NullPointerException("document as no reference yet");
}
referent = doc;
repositoryName = doc.getRepositoryName();
this.principal = principal;
ref = doc.getRef();
}
@Override
public int type() {
return -1;
}
@Override
public Object reference() {
return referent;
}
private Object readResolve() throws ObjectStreamException {
// we need a transaction for this
boolean started = false;
if (!TransactionHelper.isTransactionActiveOrMarkedRollback()) {
started = TransactionHelper.startTransaction();
}
try {
try (CoreSession session = CoreInstance.openCoreSession(repositoryName, principal)) {
referent = session.getDocument(ref);
referent.detach(true);
return referent;
}
} catch (RuntimeException cause) {
InvalidObjectException error = new InvalidObjectException(
"Cannot refetch " + ref + " from " + repositoryName);
error.initCause(cause);
throw error;
} finally {
if (started) {
TransactionHelper.commitOrRollbackTransaction();
}
}
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((repositoryName == null) ? 0 : repositoryName.hashCode());
result = prime * result + ((ref == null) ? 0 : ref.hashCode());
result = prime * result + ((principal == null) ? 0 : principal.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
InstanceRef other = (InstanceRef) obj;
if (repositoryName == null) {
if (other.repositoryName != null) {
return false;
}
} else if (!repositoryName.equals(other.repositoryName)) {
return false;
}
if (ref == null) {
if (other.ref != null) {
return false;
}
} else if (!ref.equals(other.ref)) {
return false;
}
if (principal == null) {
if (other.principal != null) {
return false;
}
} else if (!principal.equals(other.principal)) {
return false;
}
return true;
}
}