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// 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.cloudstack.api.command.admin.storage;

import org.apache.cloudstack.api.APICommand;
import org.apache.cloudstack.api.ApiConstants;
import org.apache.cloudstack.api.ApiErrorCode;
import org.apache.cloudstack.api.BaseCmd;
import org.apache.cloudstack.api.Parameter;
import org.apache.cloudstack.api.ServerApiException;
import org.apache.cloudstack.api.response.StoragePoolResponse;
import org.apache.cloudstack.api.response.SuccessResponse;
import org.apache.log4j.Logger;

import com.cloud.storage.StoragePool;
import com.cloud.storage.StoragePoolStatus;
import com.cloud.user.Account;

@APICommand(name = "deleteStoragePool", description = "Deletes a storage pool.", responseObject = SuccessResponse.class)
public class DeletePoolCmd extends BaseCmd {
    public static final Logger s_logger = Logger.getLogger(DeletePoolCmd.class.getName());
    private static final String s_name = "deletestoragepoolresponse";

    // ///////////////////////////////////////////////////
    // ////////////// API parameters /////////////////////
    // ///////////////////////////////////////////////////

    @Parameter(name = ApiConstants.ID, type = CommandType.UUID, entityType = StoragePoolResponse.class,
            required = true, description = "Storage pool id")
    private Long id;

    @Parameter(name = ApiConstants.FORCED, type = CommandType.BOOLEAN, required = false, description = "Force destroy storage pool " +
            "(force expunge volumes in Destroyed state as a part of pool removal)")
    private Boolean forced;

    // ///////////////////////////////////////////////////
    // ///////////////// Accessors ///////////////////////
    // ///////////////////////////////////////////////////

    public Long getId() {
        return id;
    }

    public boolean isForced() {
        return (forced != null) ? forced : false;
    }

    // ///////////////////////////////////////////////////
    // ///////////// API Implementation///////////////////
    // ///////////////////////////////////////////////////

    @Override
    public String getCommandName() {
        return s_name;
    }

    @Override
    public long getEntityOwnerId() {
        return Account.ACCOUNT_ID_SYSTEM;
    }

    @Override
    public void execute() {
        boolean result = _storageService.deletePool(this);
        if (result) {
            SuccessResponse response = new SuccessResponse(getCommandName());
            this.setResponseObject(response);
        } else {
            StoragePool pool = _storageService.getStoragePool(id);
            if (pool != null && pool.getStatus() == StoragePoolStatus.Removed) {
                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to finish storage pool removal. The storage pool will not be used but cleanup is needed");
            } else {
                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to delete storage pool");
            }
        }
    }
}
