// Copyright 2012 Citrix Systems, Inc. Licensed under the
// Apache License, Version 2.0 (the "License"); you may not use this
// file except in compliance with the License.  Citrix Systems, Inc.
// reserves all rights not expressly granted by 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.
// 
// Automatically generated by addcopyright.py at 04/03/2012
package com.cloud.storage;

import java.net.UnknownHostException;
import java.util.List;

import com.cloud.api.commands.CancelPrimaryStorageMaintenanceCmd;
import com.cloud.api.commands.CreateStoragePoolCmd;
import com.cloud.api.commands.CreateVolumeCmd;
import com.cloud.api.commands.DeletePoolCmd;
import com.cloud.api.commands.ListVolumesCmd;
import com.cloud.api.commands.UpdateStoragePoolCmd;
import com.cloud.api.commands.UploadVolumeCmd;
import com.cloud.exception.ConcurrentOperationException;
import com.cloud.exception.InsufficientCapacityException;
import com.cloud.exception.PermissionDeniedException;
import com.cloud.exception.ResourceAllocationException;
import com.cloud.exception.ResourceInUseException;
import com.cloud.exception.ResourceUnavailableException;

public interface StorageService{
    /**
     * Create StoragePool based on uri
     * 
     * @param cmd
     *            the command object that specifies the zone, cluster/pod, URI, details, etc. to use to create the
     *            storage pool.
     * @return
     * @throws ResourceInUseException
     * @throws IllegalArgumentException
     * @throws UnknownHostException
     * @throws ResourceUnavailableException
     *             TODO
     */
    StoragePool createPool(CreateStoragePoolCmd cmd) throws ResourceInUseException, IllegalArgumentException, UnknownHostException, ResourceUnavailableException;

    /**
     * Creates the database object for a volume based on the given criteria
     * 
     * @param cmd
     *            the API command wrapping the criteria (account/domainId [admin only], zone, diskOffering, snapshot,
     *            name)
     * @return the volume object
     * @throws PermissionDeniedException
     */
    Volume allocVolume(CreateVolumeCmd cmd) throws ResourceAllocationException;

    /**
     * Creates the volume based on the given criteria
     * 
     * @param cmd
     *            the API command wrapping the criteria (account/domainId [admin only], zone, diskOffering, snapshot,
     *            name)
     * @return the volume object
     */
    Volume createVolume(CreateVolumeCmd cmd);

    boolean deleteVolume(long volumeId) throws ConcurrentOperationException;

    /**
     * Delete the storage pool
     * 
     * @param cmd
     *            - the command specifying poolId
     * @return success or failure
     */
    boolean deletePool(DeletePoolCmd cmd);

    /**
     * Enable maintenance for primary storage
     * 
     * @param cmd
     *            - the command specifying primaryStorageId
     * @return the primary storage pool
     * @throws ResourceUnavailableException
     *             TODO
     * @throws InsufficientCapacityException
     *             TODO
     */
    public StoragePool preparePrimaryStorageForMaintenance(Long primaryStorageId) throws ResourceUnavailableException, InsufficientCapacityException;

    /**
     * Complete maintenance for primary storage
     * 
     * @param cmd
     *            - the command specifying primaryStorageId
     * @return the primary storage pool
     * @throws ResourceUnavailableException
     *             TODO
     */
    public StoragePool cancelPrimaryStorageForMaintenance(CancelPrimaryStorageMaintenanceCmd cmd) throws ResourceUnavailableException;

    public StoragePool updateStoragePool(UpdateStoragePoolCmd cmd) throws IllegalArgumentException;

    public StoragePool getStoragePool(long id);

    Volume migrateVolume(Long volumeId, Long storagePoolId) throws ConcurrentOperationException;

    List<? extends Volume> searchForVolumes(ListVolumesCmd cmd);

    /**
     * Uploads the volume to secondary storage
     * 
     * @param UploadVolumeCmd cmd 
     *            
     * @return Volume object
     */
    Volume uploadVolume(UploadVolumeCmd cmd)	throws ResourceAllocationException;

}