Package org.apache.cloudstack.storage.to

Examples of org.apache.cloudstack.storage.to.SnapshotObjectTO


    }

    @Override
    public Answer createSnapshot(CreateObjectCommand cmd) {
        Connection conn = hypervisorResource.getConnection();
        SnapshotObjectTO snapshotTO = (SnapshotObjectTO)cmd.getData();
        long snapshotId = snapshotTO.getId();
        String snapshotName = snapshotTO.getName();
        String details = "create snapshot operation Failed for snapshotId: " + snapshotId;
        String snapshotUUID = null;

        try {
            String volumeUUID = snapshotTO.getVolume().getPath();
            VDI volume = VDI.getByUuid(conn, volumeUUID);

            VDI snapshot = volume.snapshot(conn, new HashMap<String, String>());

            if (snapshotName != null) {
                snapshot.setNameLabel(conn, snapshotName);
            }

            snapshotUUID = snapshot.getUuid(conn);
            String preSnapshotUUID = snapshotTO.getParentSnapshotPath();
            //check if it is a empty snapshot
            if( preSnapshotUUID != null) {
                SR sr = volume.getSR(conn);
                String srUUID = sr.getUuid(conn);
                String type = sr.getType(conn);
                Boolean isISCSI = IsISCSI(type);
                String snapshotParentUUID = getVhdParent(conn, srUUID, snapshotUUID, isISCSI);

                String preSnapshotParentUUID = getVhdParent(conn, srUUID, preSnapshotUUID, isISCSI);
                if( snapshotParentUUID != null && snapshotParentUUID.equals(preSnapshotParentUUID)) {
                    // this is empty snapshot, remove it
                    snapshot.destroy(conn);
                    snapshotUUID = preSnapshotUUID;
                }
            }
            SnapshotObjectTO newSnapshot = new SnapshotObjectTO();
            newSnapshot.setPath(snapshotUUID);
            return new CreateObjectAnswer(newSnapshot);
        } catch (XenAPIException e) {
            details += ", reason: " + e.toString();
            s_logger.warn(details, e);
        } catch (Exception e) {
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            cacheStore = (NfsTO)destData.getDataStore();
            secondaryStorageUrl = cacheStore.getUrl();
            destPath = destData.getPath();
        }

        SnapshotObjectTO snapshotTO = (SnapshotObjectTO)srcData;
        SnapshotObjectTO snapshotOnImage = (SnapshotObjectTO)destData;
        String snapshotUuid = snapshotTO.getPath();

        String prevBackupUuid = snapshotOnImage.getParentSnapshotPath();
        String prevSnapshotUuid = snapshotTO.getParentSnapshotPath();

        // By default assume failure
        String details = null;
        String snapshotBackupUuid = null;
        boolean fullbackup = true;
        try {
            SR primaryStorageSR = hypervisorResource.getSRByNameLabelandHost(conn, primaryStorageNameLabel);
            if (primaryStorageSR == null) {
                throw new InternalErrorException("Could not backup snapshot because the primary Storage SR could not be created from the name label: " + primaryStorageNameLabel);
            }
            String psUuid = primaryStorageSR.getUuid(conn);
            Boolean isISCSI = IsISCSI(primaryStorageSR.getType(conn));

            VDI snapshotVdi = getVDIbyUuid(conn, snapshotUuid);
            String snapshotPaUuid = null;
            if ( prevBackupUuid != null ) {
                try {
                    snapshotPaUuid = getVhdParent(conn, psUuid, snapshotUuid, isISCSI);
                    if( snapshotPaUuid != null ) {
                        String snashotPaPaPaUuid = getVhdParent(conn, psUuid, snapshotPaUuid, isISCSI);
                        String prevSnashotPaUuid = getVhdParent(conn, psUuid, prevSnapshotUuid, isISCSI);
                        if (snashotPaPaPaUuid != null && prevSnashotPaUuid!= null && prevSnashotPaUuid.equals(snashotPaPaPaUuid)) {
                            fullbackup = false;
                        }
                    }
                } catch (Exception e) {
                }
            }

            URI uri = new URI(secondaryStorageUrl);
            String secondaryStorageMountPath = uri.getHost() + ":" + uri.getPath();
            DataStoreTO destStore = destData.getDataStore();
            String folder = destPath;
            String finalPath = null;

            String localMountPoint =  BaseMountPointOnHost + File.separator + UUID.nameUUIDFromBytes(secondaryStorageUrl.getBytes()).toString();
            if (fullbackup) {
                // the first snapshot is always a full snapshot

                if( !hypervisorResource.createSecondaryStorageFolder(conn, secondaryStorageMountPath, folder)) {
                    details = " Filed to create folder " + folder + " in secondary storage";
                    s_logger.warn(details);
                    return new CopyCmdAnswer(details);
                }
                String snapshotMountpoint = secondaryStorageUrl + "/" + folder;
                SR snapshotSr = null;
                try {
                    snapshotSr = hypervisorResource.createNfsSRbyURI(conn, new URI(snapshotMountpoint), false);
                    VDI backedVdi = hypervisorResource.cloudVDIcopy(conn, snapshotVdi, snapshotSr, wait);
                    snapshotBackupUuid = backedVdi.getUuid(conn);

                    if( destStore instanceof SwiftTO) {
                        try {
                            String container = "S-" + snapshotTO.getVolume().getVolumeId().toString();
                            String destSnapshotName = swiftBackupSnapshot(conn, (SwiftTO)destStore, snapshotSr.getUuid(conn), snapshotBackupUuid, container, false, wait);
                            String swiftPath = container + File.separator + destSnapshotName;
                            finalPath = swiftPath;
                        } finally {
                            try {
                                deleteSnapshotBackup(conn, localMountPoint, folder, secondaryStorageMountPath, snapshotBackupUuid);
                            } catch (Exception e) {
                                s_logger.debug("Failed to delete snapshot on cache storages" ,e);
                            }
                        }

                    } else if (destStore instanceof S3TO) {
                        try {
                            finalPath = backupSnapshotToS3(conn, (S3TO) destStore, snapshotSr.getUuid(conn), folder, snapshotBackupUuid, isISCSI, wait);
                            if (finalPath == null) {
                                throw new CloudRuntimeException("S3 upload of snapshots " + snapshotBackupUuid + " failed");
                            }
                        } finally {
                            try {
                                deleteSnapshotBackup(conn, localMountPoint, folder, secondaryStorageMountPath, snapshotBackupUuid);
                            } catch (Exception e) {
                                s_logger.debug("Failed to delete snapshot on cache storages" ,e);
                            }
                        }
                        // finalPath = folder + File.separator + snapshotBackupUuid;
                    } else {
                        finalPath = folder + File.separator + snapshotBackupUuid;
                    }

                } finally {
                    if( snapshotSr != null) {
                        hypervisorResource.removeSR(conn, snapshotSr);
                    }
                }
            } else {
                String primaryStorageSRUuid = primaryStorageSR.getUuid(conn);
                if( destStore instanceof SwiftTO ) {
                    String container = "S-" + snapshotTO.getVolume().getVolumeId().toString();
                    snapshotBackupUuid = swiftBackupSnapshot(conn, (SwiftTO)destStore, primaryStorageSRUuid, snapshotPaUuid, "S-" + snapshotTO.getVolume().getVolumeId().toString(), isISCSI, wait);
                    finalPath = container + File.separator + snapshotBackupUuid;
                } else if (destStore instanceof S3TO ) {
                    finalPath = backupSnapshotToS3(conn, (S3TO) destStore, primaryStorageSRUuid, folder, snapshotPaUuid, isISCSI, wait);
                    if (finalPath == null) {
                        throw new CloudRuntimeException("S3 upload of snapshots " + snapshotPaUuid + " failed");
                    }
                } else {
                    snapshotBackupUuid = backupSnapshot(conn, primaryStorageSRUuid, localMountPoint, folder,
                            secondaryStorageMountPath, snapshotUuid, prevBackupUuid, isISCSI, wait);

                    finalPath = folder + File.separator + snapshotBackupUuid;
                }
            }
            String volumeUuid = snapshotTO.getVolume().getPath();
            destroySnapshotOnPrimaryStorageExceptThis(conn, volumeUuid, snapshotUuid);

            SnapshotObjectTO newSnapshot = new SnapshotObjectTO();
            newSnapshot.setPath(finalPath);
            if (fullbackup) {
                newSnapshot.setParentSnapshotPath(null);
            } else {
                newSnapshot.setParentSnapshotPath(prevBackupUuid);
            }
            return new CopyCmdAnswer(newSnapshot);
        } catch (XenAPIException e) {
            details = "BackupSnapshot Failed due to " + e.toString();
            s_logger.warn(details, e);
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    @Override
    public Answer createVolumeFromSnapshot(CopyCommand cmd) {
        Connection conn = this.hypervisorResource.getConnection();
        DataTO srcData = cmd.getSrcTO();
        SnapshotObjectTO snapshot = (SnapshotObjectTO)srcData;
        DataTO destData = cmd.getDestTO();
        PrimaryDataStoreTO pool = (PrimaryDataStoreTO)destData.getDataStore();
        DataStoreTO imageStore = srcData.getDataStore();

        if (!(imageStore instanceof NfsTO)) {
            return new CopyCmdAnswer("unsupported protocol");
        }

        NfsTO nfsImageStore = (NfsTO)imageStore;
        String primaryStorageNameLabel = pool.getUuid();
        String secondaryStorageUrl = nfsImageStore.getUrl();
        int wait = cmd.getWait();
        boolean result = false;
        // Generic error message.
        String details = null;
        String volumeUUID = null;

        if (secondaryStorageUrl == null) {
            details += " because the URL passed: " + secondaryStorageUrl + " is invalid.";
            return new CopyCmdAnswer(details);
        }
        try {
            SR primaryStorageSR = this.hypervisorResource.getSRByNameLabelandHost(conn, primaryStorageNameLabel);
            if (primaryStorageSR == null) {
                throw new InternalErrorException("Could not create volume from snapshot because the primary Storage SR could not be created from the name label: "
                        + primaryStorageNameLabel);
            }
            // Get the absolute path of the snapshot on the secondary storage.
            String snapshotInstallPath = snapshot.getPath();
            int index = snapshotInstallPath.lastIndexOf(File.separator);
            String snapshotName = snapshotInstallPath.substring(index + 1);

            if (!snapshotName.startsWith("VHD-") && !snapshotName.endsWith(".vhd")) {
                snapshotInstallPath = snapshotInstallPath + ".vhd";
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        return new CopyCmdAnswer(details);
    }

    @Override
    public Answer deleteSnapshot(DeleteCommand cmd) {
        SnapshotObjectTO snapshot = (SnapshotObjectTO)cmd.getData();
        DataStoreTO store = snapshot.getDataStore();
        if (store.getRole() == DataStoreRole.Primary) {
            Connection conn = this.hypervisorResource.getConnection();
            VDI snapshotVdi = getVDIbyUuid(conn, snapshot.getPath());
            if (snapshotVdi == null) {
                return new Answer(null);
            }
            String errMsg = null;
            try {
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    @Override
    public DataTO getTO() {
        DataTO to = this.store.getDriver().getTO(this);
        if (to == null) {
            return new SnapshotObjectTO(this);
        }
        return to;
    }
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    public void processEvent(ObjectInDataStoreStateMachine.Event event, Answer answer) {
        try {
            SnapshotDataStoreVO snapshotStore = this.snapshotStoreDao.findByStoreSnapshot(
                    this.getDataStore().getRole(), this.getDataStore().getId(), this.getId());
            if (answer instanceof CreateObjectAnswer) {
                SnapshotObjectTO snapshotTO = (SnapshotObjectTO) ((CreateObjectAnswer) answer).getData();
                snapshotStore.setInstallPath(snapshotTO.getPath());
                this.snapshotStoreDao.update(snapshotStore.getId(), snapshotStore);
            } else if (answer instanceof CopyCmdAnswer) {
                SnapshotObjectTO snapshotTO = (SnapshotObjectTO) ((CopyCmdAnswer) answer).getNewData();
                snapshotStore.setInstallPath(snapshotTO.getPath());
                if (snapshotTO.getParentSnapshotPath() == null) {
                    snapshotStore.setParentSnapshotId(0L);
                }
                this.snapshotStoreDao.update(snapshotStore.getId(), snapshotStore);
               
                // update side-effect of snapshot operation
                if(snapshotTO.getVolume() != null && snapshotTO.getVolume().getPath() != null) {
                  VolumeVO vol = this.volumeDao.findByUuid(snapshotTO.getVolume().getUuid());
                  if(vol != null) {
                    s_logger.info("Update volume path change due to snapshot operation, volume " + vol.getId() + " path: "
                      + vol.getPath() + "->" + snapshotTO.getVolume().getPath());
                    vol.setPath(snapshotTO.getVolume().getPath());
                    this.volumeDao.update(vol.getId(), vol);
                  } else {
                    s_logger.error("Cound't find the original volume with uuid: " + snapshotTO.getVolume().getUuid());
                  }
                }
            } else {
                throw new CloudRuntimeException("Unknown answer: " + answer.getClass());
            }
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            callback.complete(result);
        }
        if (destData.getType() == DataObjectType.SNAPSHOT) {
            SnapshotInfo srcSnapshot = (SnapshotInfo)srcData;

            SnapshotObjectTO newSnapshot = new SnapshotObjectTO();
            newSnapshot.setPath(UUID.randomUUID().toString());
            if (srcSnapshot.getParent() != null) {
                newSnapshot.setParentSnapshotPath(srcSnapshot.getParent().getPath());
            }
            data = newSnapshot;
        } else if (destData.getType() == DataObjectType.TEMPLATE) {
            TemplateObjectTO newTemplate = new TemplateObjectTO();
            newTemplate.setPath(UUID.randomUUID().toString());
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    @Override
    public void takeSnapshot(SnapshotInfo snapshot, AsyncCompletionCallback<CreateCmdResult> callback) {
        CreateCmdResult result = new CreateCmdResult(null, null);
        if (snapshotResult) {
            SnapshotObjectTO newSnap = new SnapshotObjectTO();
            newSnap.setPath(UUID.randomUUID().toString());

            CreateObjectAnswer answer = new CreateObjectAnswer(newSnap);
            result.setAnswer(answer);
        } else {
            result.setResult("Failed to create snapshot");
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    }


    protected CopyCmdAnswer postProcessing(File destFile, String downloadPath, String destPath, DataTO srcData, DataTO destData) throws ConfigurationException {
        if (destData.getObjectType() == DataObjectType.SNAPSHOT) {
            SnapshotObjectTO snapshot = new SnapshotObjectTO();
            snapshot.setPath(destPath + File.separator + destFile.getName());

            CopyCmdAnswer answer = new CopyCmdAnswer(snapshot);
            return answer;
        }
        // do post processing to unzip the file if it is compressed
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                TemplateObjectTO template = new TemplateObjectTO();
                template.setPath(swiftPath);
                template.setSize(templateFile.length());
                template.setPhysicalSize(template.getSize());
                SnapshotObjectTO snapshot = (SnapshotObjectTO)srcData;
                template.setFormat(snapshot.getVolume().getFormat());
                return new CopyCmdAnswer(template);
            } else if (destDataStore instanceof S3TO) {
                //create template on the same data store
                CopyCmdAnswer answer = (CopyCmdAnswer)copySnapshotToTemplateFromNfsToNfs(cmd, (SnapshotObjectTO) srcData, (NfsTO) srcDataStore,
                        (TemplateObjectTO) destData, (NfsTO) srcDataStore);
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