content: //
  // 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 com.cloud.hypervisor.kvm.resource.wrapper;
  
  import static com.cloud.hypervisor.kvm.storage.StorPoolStorageAdaptor.SP_LOG;
  
  import java.io.File;
  
  import org.apache.cloudstack.storage.command.CopyCmdAnswer;
  import org.apache.cloudstack.storage.to.PrimaryDataStoreTO;
  import org.apache.cloudstack.storage.to.VolumeObjectTO;
  import org.apache.cloudstack.utils.qemu.QemuImg;
  import org.apache.cloudstack.utils.qemu.QemuImg.PhysicalDiskFormat;
  import org.apache.cloudstack.utils.qemu.QemuImgFile;
  
  import com.cloud.agent.api.storage.StorPoolCopyVolumeToSecondaryCommand;
  import com.cloud.agent.api.to.DataStoreTO;
  import com.cloud.agent.api.to.NfsTO;
  import com.cloud.hypervisor.kvm.resource.LibvirtComputingResource;
  import com.cloud.hypervisor.kvm.storage.KVMPhysicalDisk;
  import com.cloud.hypervisor.kvm.storage.KVMStoragePool;
  import com.cloud.hypervisor.kvm.storage.KVMStoragePoolManager;
  import com.cloud.hypervisor.kvm.storage.StorPoolStorageAdaptor;
  import com.cloud.resource.CommandWrapper;
  import com.cloud.resource.ResourceWrapper;
  
  @ResourceWrapper(handles = StorPoolCopyVolumeToSecondaryCommand.class)
  public final class StorPoolCopyVolumeToSecondaryCommandWrapper extends CommandWrapper<StorPoolCopyVolumeToSecondaryCommand, CopyCmdAnswer, LibvirtComputingResource> {
  
  
      @Override
      public CopyCmdAnswer execute(final StorPoolCopyVolumeToSecondaryCommand cmd, final LibvirtComputingResource libvirtComputingResource) {
          String srcPath = null;
          KVMStoragePool secondaryPool = null;
  
          try {
              final VolumeObjectTO src = cmd.getSourceTO();
              final VolumeObjectTO dst = cmd.getDestinationTO();
              final KVMStoragePoolManager storagePoolMgr = libvirtComputingResource.getStoragePoolMgr();
              final String destVolumePath = dst.getPath();
  
              SP_LOG("StorpoolCopyVolumeToSecondaryCommandWrapper.execute: src=" + src.getPath() + "dst=" + dst.getPath());
  
              StorPoolStorageAdaptor.attachOrDetachVolume("attach", "snapshot", src.getPath());
              srcPath = src.getPath();
  
              final QemuImgFile srcFile = new QemuImgFile(srcPath, PhysicalDiskFormat.RAW);
  
              final DataStoreTO dstDataStore = dst.getDataStore();
  
              final KVMStoragePoolManager poolMgr = libvirtComputingResource.getStoragePoolMgr();
              SP_LOG("StorpoolCopyVolumeToSecondaryCommandWrapper.execute: KVMStoragePoolManager " + poolMgr);
              KVMStoragePool destPool;
              if( dstDataStore instanceof NfsTO ) {
                  destPool = storagePoolMgr.getStoragePoolByURI(dstDataStore.getUrl());
                  destPool.createFolder(destVolumePath);
                  storagePoolMgr.deleteStoragePool(destPool.getType(), destPool.getUuid());
                  destPool = storagePoolMgr.getStoragePoolByURI(dstDataStore.getUrl() + File.separator + destVolumePath);
                  SP_LOG("StorpoolCopyVolumeToSecondaryCommandWrapper.execute: Nfs destPool=%s ",destPool);
              } else if( dstDataStore instanceof PrimaryDataStoreTO ) {
                  PrimaryDataStoreTO primaryDst = (PrimaryDataStoreTO)dstDataStore;
                  destPool = poolMgr.getStoragePool(primaryDst.getPoolType(), dstDataStore.getUuid());
                  SP_LOG("StorpoolCopyVolumeToSecondaryCommandWrapper.execute: not Nfs destPool=%s " ,destPool);
              } else {
                  return new CopyCmdAnswer("Don't know how to copy to " + dstDataStore.getClass().getName() + ", " + dst.getPath() );
              }
              SP_LOG("StorpoolCopyVolumeToSecondaryCommandWrapper.execute: dstName=%s, dstProvisioningType=%s, srcSize=%s, dstUUID=%s, srcUUID=%s " ,dst.getName(), dst.getProvisioningType(), src.getSize(),dst.getUuid(), src.getUuid());
  
                  KVMPhysicalDisk newDisk = destPool.createPhysicalDisk(dst.getUuid(), dst.getProvisioningType(), src.getSize(), null);
                  SP_LOG("NewDisk path=%s, uuid=%s ", newDisk.getPath(), dst.getUuid());
                  String destPath = newDisk.getPath();
                  newDisk.setPath(dst.getUuid());
  
                  PhysicalDiskFormat destFormat = newDisk.getFormat();
                  SP_LOG("StorpoolCopyVolumeToSecondaryCommandWrapper.execute: KVMPhysicalDisk name=%s, format=%s, path=%s, destinationPath=%s " , newDisk.getName(), newDisk.getFormat(), newDisk.getPath(), destPath);
                  QemuImgFile destFile = new QemuImgFile(destPath, destFormat);
                  QemuImg qemu = new QemuImg(cmd.getWaitInMillSeconds());
                  qemu.convert(srcFile, destFile);
  
                  final File file = new File(destPath);
                  final long size = file.exists() ? file.length() : 0;
                  dst.setPath(destVolumePath + File.separator + dst.getUuid());
                  dst.setSize(size);
  
              return new CopyCmdAnswer(dst);
          } catch (final Exception e) {
              final String error = "Failed to copy volume to secondary storage: " + e.getMessage();
              logger.debug(error);
              return new CopyCmdAnswer(error);
          } finally {
              if (srcPath != null) {
                  StorPoolStorageAdaptor.attachOrDetachVolume("detach", "snapshot", srcPath);
              }
  
              if (secondaryPool != null) {
                  try {
                      SP_LOG("StorpoolCopyVolumeToSecondaryCommandWrapper.execute: secondaryPool=%s " , secondaryPool);
                      secondaryPool.delete();
                  } catch (final Exception e) {
                      logger.debug("Failed to delete secondary storage", e);
                  }
              }
          }
      }
  }
  