| | |
| | | package org.opends.server.replication.plugin; |
| | | |
| | | import org.opends.server.replication.common.ChangeNumber; |
| | | import org.opends.server.replication.common.ServerState; |
| | | import org.opends.server.replication.protocol.UpdateMessage; |
| | | import org.opends.server.types.DN; |
| | | import org.opends.server.types.DirectoryException; |
| | | import org.opends.server.types.Operation; |
| | | |
| | | /** |
| | | * This class is use to store the list of operations currently |
| | | * This class is use to store an operation currently |
| | | * in progress and not yet committed in the database. |
| | | */ |
| | | public class PendingChange |
| | | public class PendingChange implements Comparable<PendingChange> |
| | | { |
| | | private ChangeNumber changeNumber; |
| | | private boolean committed; |
| | | private UpdateMessage msg; |
| | | private Operation op; |
| | | private ServerState dependencyState = null; |
| | | private DN targetDN = null; |
| | | |
| | | /** |
| | | * Construct a new PendingChange. |
| | |
| | | this.op = op; |
| | | } |
| | | |
| | | /** |
| | | * Add the given ChangeNumber in the list of dependencies of this |
| | | * PendingChange. |
| | | * |
| | | * @param changeNumber The ChangeNumber to add in the list of dependencies |
| | | * of this PendingChange. |
| | | */ |
| | | public void addDependency(ChangeNumber changeNumber) |
| | | { |
| | | if (dependencyState == null) |
| | | { |
| | | dependencyState = new ServerState(); |
| | | } |
| | | dependencyState.update(changeNumber); |
| | | } |
| | | |
| | | /** |
| | | * Check if the given ServerState covers the dependencies of this |
| | | * PendingChange. |
| | | * |
| | | * @param state The ServerState for which dependencies must be checked, |
| | | * |
| | | * @return A boolean indicating if the given ServerState covers the |
| | | * dependencies of this PendingChange. |
| | | */ |
| | | public boolean dependenciesIsCovered(ServerState state) |
| | | { |
| | | return state.cover(dependencyState); |
| | | } |
| | | |
| | | /** |
| | | * Get the Target DN of this message. |
| | | * |
| | | * @return The target DN of this message. |
| | | */ |
| | | public DN getTargetDN() |
| | | { |
| | | synchronized (this) |
| | | { |
| | | if (targetDN != null) |
| | | return targetDN; |
| | | else |
| | | { |
| | | try |
| | | { |
| | | targetDN = DN.decode(msg.getDn()); |
| | | } |
| | | catch (DirectoryException e) |
| | | { |
| | | } |
| | | } |
| | | return targetDN; |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * {@inheritDoc} |
| | | */ |
| | | public int compareTo(PendingChange o) |
| | | { |
| | | return this.getChangeNumber().compareTo(o.getChangeNumber()); |
| | | } |
| | | } |