/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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.apache.directory.mitosis.operation;


import org.apache.directory.mitosis.common.CSN;
import org.apache.directory.mitosis.common.CSNVector;
import org.apache.directory.mitosis.common.ReplicaId;
import org.apache.directory.mitosis.common.UUID;
import org.apache.directory.mitosis.configuration.ReplicationConfiguration;
import org.apache.directory.mitosis.store.ReplicationLogIterator;
import org.apache.directory.mitosis.store.ReplicationStore;
import org.apache.directory.server.core.DirectoryService;
import org.apache.directory.server.core.partition.PartitionNexus;
import org.apache.directory.server.schema.registries.Registries;

import javax.naming.Name;
import javax.naming.NamingException;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;


/**
 * An {@link Operation} that contains other {@link Operation}s.
 *
 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
 */
public class CompositeOperation extends Operation
{
    private static final long serialVersionUID = 6252675003841951356L;

    private static final ReplicationStore DUMMY_STORE = new ReplicationStore()
    {

        public void open( DirectoryService directoryService, ReplicationConfiguration cfg )
        {
        }


        public void close()
        {
        }


        public ReplicaId getReplicaId()
        {
            return null;
        }


        public Set<ReplicaId> getKnownReplicaIds()
        {
            return null;
        }


        public Name getDN( UUID uuid )
        {
            return null;
        }


        public boolean putUUID( UUID uuid, Name dn )
        {
            return false;
        }


        public boolean removeUUID( UUID uuid )
        {
            return false;
        }


        public void putLog( Operation operation )
        {
        }


        public ReplicationLogIterator getLogs( CSN fromCSN, boolean inclusive )
        {
            return null;
        }


        public ReplicationLogIterator getLogs( CSNVector updateVector, boolean inclusive )
        {
            return null;
        }


        public int removeLogs( CSN toCSN, boolean inclusive )
        {
            return 0;
        }


        public int getLogSize()
        {
            return 0;
        }


        public int getLogSize( ReplicaId replicaId )
        {
            return 0;
        }


        public CSNVector getUpdateVector()
        {
            return null;
        }


        public CSNVector getPurgeVector()
        {
            return null;
        }
    };

    private final List<Operation> children = new ArrayList<Operation>();


    public CompositeOperation( CSN csn )
    {
        super( csn );
    }


    public void add( Operation op )
    {
        assert op != null;
        assert op.getCSN().equals( this.getCSN() );
        children.add( op );
    }


    public void clear()
    {
        children.clear();
    }


    protected void execute0( PartitionNexus nexus, ReplicationStore store, Registries registries ) 
        throws NamingException
    {
        for ( Operation op : children )
        {
            op.execute( nexus, DUMMY_STORE, registries );
        }
    }


    public String toString()
    {
        return children.toString();
    }
}