Examples of com.xensource.xenapi.VDI

com.xensource.xenapi.VDI
A virtual disk image @author Citrix Systems, Inc.

            }
            String psUuid = primaryStorageSR.getUuid(conn);
            Boolean isISCSI = IsISCSI(primaryStorageSR.getType(conn));
            URI uri = new URI(secondaryStorageUrl);
            String secondaryStorageMountPath = uri.getHost() + ":" + uri.getPath();
            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) {
                }
            }


            if (fullbackup) {
                // the first snapshot is always a full snapshot
                String folder = "snapshots/" + accountId + "/" + volumeId;
                if( !createSecondaryStorageFolder(conn, secondaryStorageMountPath, folder)) {
                    details = " Filed to create folder " + folder + " in secondary storage";
                    s_logger.warn(details);
                    return new BackupSnapshotAnswer(cmd, false, details, null, false);
                }
                String snapshotMountpoint = secondaryStorageUrl + "/" + folder;
                SR snapshotSr = null;
                try {
                    snapshotSr = createNfsSRbyURI(conn, new URI(snapshotMountpoint), false);
                    VDI backedVdi = cloudVDIcopy(conn, snapshotVdi, snapshotSr, wait);
                    snapshotBackupUuid = backedVdi.getUuid(conn);
                    if( cmd.getSwift() != null ) {
                        try {
                            swiftBackupSnapshot(conn, cmd.getSwift(), snapshotSr.getUuid(conn), snapshotBackupUuid, "S-" + volumeId.toString(), false, wait);
                            snapshotBackupUuid = snapshotBackupUuid + ".vhd";
                        } finally {

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            isoSR = createIsoSRbyURI(conn, uri, vmName, false);
        }


        String isoName = isoURL.substring(index + 1);


        VDI isoVDI = getVDIbyLocationandSR(conn, isoName, isoSR);


        if (isoVDI != null) {
            return isoVDI;
        } else {
            throw new CloudRuntimeException("Could not find ISO with URL: " + isoURL);

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    }


    protected boolean destroySnapshotOnPrimaryStorage(Connection conn, String snapshotUuid) {
        // Precondition snapshotUuid != null
        try {
            VDI snapshot = getVDIbyUuid(conn, snapshotUuid);
            if (snapshot == null) {
                throw new InternalErrorException("Could not destroy snapshot " + snapshotUuid + " because the snapshot VDI was null");
            }
            snapshot.destroy(conn);
            s_logger.debug("Successfully destroyed snapshotUuid: " + snapshotUuid + " on primary storage");
            return true;
        } catch (XenAPIException e) {
            String msg = "Destroy snapshotUuid: " + snapshotUuid + " on primary storage failed due to " + e.toString();
            s_logger.error(msg, e);

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            Set<VDI> vdis = VDI.getByNameLabel(conn, "systemvm-vdi");
            if (vdis.size() != 1) {
                throw new CloudRuntimeException("can not find systemvmiso");
            }
            VDI systemvmVDI = vdis.iterator().next();


            VBD.Record cdromVBDR = new VBD.Record();
            cdromVBDR.VM = vm;
            cdromVBDR.empty = false;
            cdromVBDR.bootable = false;

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                if (setVdis.size() != 1) {
                    return new CopyCmdAnswer("Can't find template VDI under: " + uri.getHost() + ":" + uri.getPath() + "/" + volumeDirectory);
                }


                VDI srcVdi = setVdis.iterator().next();


                boolean managed = false;
                String storageHost = null;
                String managedStoragePoolName = null;
                String managedStoragePoolRootVolumeName = null;
                String managedStoragePoolRootVolumeSize = null;
                String chapInitiatorUsername = null;
                String chapInitiatorSecret = null;


                PrimaryDataStoreTO destStore = (PrimaryDataStoreTO)destData.getDataStore();


                Map<String, String> details = destStore.getDetails();


                if (details != null) {
                    managed = Boolean.parseBoolean(details.get(PrimaryDataStoreTO.MANAGED));


                    if (managed) {
                        storageHost = details.get(PrimaryDataStoreTO.STORAGE_HOST);
                        managedStoragePoolName = details.get(PrimaryDataStoreTO.MANAGED_STORE_TARGET);
                        managedStoragePoolRootVolumeName = details.get(PrimaryDataStoreTO.MANAGED_STORE_TARGET_ROOT_VOLUME);
                        managedStoragePoolRootVolumeSize = details.get(PrimaryDataStoreTO.VOLUME_SIZE);
                        chapInitiatorUsername = details.get(PrimaryDataStoreTO.CHAP_INITIATOR_USERNAME);
                        chapInitiatorSecret = details.get(PrimaryDataStoreTO.CHAP_INITIATOR_SECRET);
                    }
                }


                final SR destSr;


                if (managed) {
                    details = new HashMap<String, String>();


                    details.put(DiskTO.STORAGE_HOST, storageHost);
                    details.put(DiskTO.IQN, managedStoragePoolName);
                    details.put(DiskTO.VOLUME_SIZE, managedStoragePoolRootVolumeSize);
                    details.put(DiskTO.CHAP_INITIATOR_USERNAME, chapInitiatorUsername);
                    details.put(DiskTO.CHAP_INITIATOR_SECRET, chapInitiatorSecret);


                    destSr = hypervisorResource.prepareManagedSr(conn, details);
                }
                else {
                    String srName = destStore.getUuid();
                    Set<SR> srs = SR.getByNameLabel(conn, srName);


                    if (srs.size() != 1) {
                        String msg = "There are " + srs.size() + " SRs with same name: " + srName;


                        s_logger.warn(msg);


                        return new CopyCmdAnswer(msg);
                    } else {
                        destSr = srs.iterator().next();
                    }
                }


                task = srcVdi.copyAsync2(conn, destSr, null, null);


                // poll every 1 seconds ,
                hypervisorResource.waitForTask(conn, task, 1000, wait * 1000);
                hypervisorResource.checkForSuccess(conn, task);


                VDI tmplVdi = Types.toVDI(task, conn);


                final String uuidToReturn;


                if (managed) {
                    uuidToReturn = tmplVdi.getUuid(conn);


                    tmplVdi.setNameLabel(conn, managedStoragePoolRootVolumeName);
                } else {
                    VDI snapshotVdi = tmplVdi.snapshot(conn, new HashMap<String, String>());


                    uuidToReturn = snapshotVdi.getUuid(conn);


                    snapshotVdi.setNameLabel(conn, "Template " + srcTemplate.getName());


                    tmplVdi.destroy(conn);
                }


                destSr.scan(conn);

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        String remoteDir = secondaryStorageMountPath;
        try {
            ssSR = createFileSr(conn, remoteDir, path);
            filesrcreated = true;


            VDI snapshotvdi = VDI.getByUuid(conn, snapshotUuid);
            if (wait == 0) {
                wait = 2 * 60 * 60;
            }
            VDI dvdi = null;
            Task task = null;
            try {
                VDI previousSnapshotVdi = null;
                if (prevSnapshotUuid != null) {
                    previousSnapshotVdi = VDI.getByUuid(conn,prevSnapshotUuid);
                }
                task = snapshotvdi.copyAsync2(conn, ssSR, previousSnapshotVdi, null);
                // poll every 1 seconds ,

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                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;


            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) {
                SR snapshotSr = null;
                Task task = null;
                try {
                    String localDir = "/var/cloud_mount/" + UUID.nameUUIDFromBytes(secondaryStorageMountPath.getBytes());
                    mountNfs(conn, secondaryStorageMountPath, localDir);
                    boolean result = makeDirectory(conn, localDir + "/" + folder);
                    if (!result) {
                        details = " Filed to create folder " + folder + " in secondary storage";
                        s_logger.warn(details);
                        return new CopyCmdAnswer(details);
                    }


                    snapshotSr = createFileSr(conn, secondaryStorageMountPath, folder);


                    task = snapshotVdi.copyAsync2(conn, snapshotSr, null, null);
                    // poll every 1 seconds ,
                    hypervisorResource.waitForTask(conn, task, 1000, wait * 1000);
                    hypervisorResource.checkForSuccess(conn, task);
                    VDI backedVdi = Types.toVDI(task, conn);
                    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);

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                details = " Filed to create folder " + installPath + " in secondary storage";
                s_logger.warn(details);
                return new CopyCmdAnswer(details);
            }


            VDI vol = getVDIbyUuid(conn, volumeUUID);
            // create template SR
            tmpltSR = createFileSr(conn, uri.getHost() + ":" + uri.getPath(), installPath);


            // copy volume to template SR
            task = vol.copyAsync2(conn, tmpltSR, null, null);
            // poll every 1 seconds ,
            hypervisorResource.waitForTask(conn, task, 1000, wait * 1000);
            hypervisorResource.checkForSuccess(conn, task);
            VDI tmpltVDI = Types.toVDI(task, conn);
            // scan makes XenServer pick up VDI physicalSize
            tmpltSR.scan(conn);
            if (userSpecifiedName != null) {
                tmpltVDI.setNameLabel(conn, userSpecifiedName);
            }


            String tmpltUUID = tmpltVDI.getUuid(conn);
            String tmpltFilename = tmpltUUID + ".vhd";
            long virtualSize = tmpltVDI.getVirtualSize(conn);
            long physicalSize = tmpltVDI.getPhysicalUtilisation(conn);
            // create the template.properties file
            String templatePath = secondaryStorageMountPath + "/" + installPath;
            result = hypervisorResource.postCreatePrivateTemplate(conn, templatePath, tmpltFilename, tmpltUUID, userSpecifiedName, null, physicalSize, virtualSize, template.getId());
            if (!result) {
                throw new CloudRuntimeException("Could not create the template.properties file on secondary storage dir");

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        if (secondaryStorageUrl == null) {
            details += " because the URL passed: " + secondaryStorageUrl + " is invalid.";
            return new CopyCmdAnswer(details);
        }
        SR srcSr = null;
        VDI destVdi = null;
        try {
            SR primaryStorageSR = 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);
            }
            String nameLabel = "cloud-" + UUID.randomUUID().toString();
            destVdi = createVdi(conn, nameLabel, primaryStorageSR, volume.getSize());
            volumeUUID = destVdi.getUuid(conn);
            String snapshotInstallPath = snapshot.getPath();
            int index = snapshotInstallPath.lastIndexOf(File.separator);
            String snapshotDirectory = snapshotInstallPath.substring(0, index);
            String snapshotUuid = getSnapshotUuid(snapshotInstallPath);


            URI uri = new URI(secondaryStorageUrl);
            srcSr = createFileSr(conn, uri.getHost() + ":" + uri.getPath(), snapshotDirectory);


            String[] parents = snapshot.getParents();
            List<VDI> snapshotChains = new ArrayList<VDI>();
            if (parents != null) {
                for(int i = 0; i < parents.length; i++) {
                    String snChainPath = parents[i];
                    String uuid = getSnapshotUuid(snChainPath);
                    VDI chain = VDI.getByUuid(conn, uuid);
                    snapshotChains.add(chain);
                }
            }


            VDI snapshotVdi = VDI.getByUuid(conn, snapshotUuid);
            snapshotChains.add(snapshotVdi);


            for(VDI snapChain : snapshotChains) {
                Task task = snapChain.copyAsync2(conn, null, null, destVdi);
                // poll every 1 seconds ,

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                }


                // Create a SR for the volume UUID folder
                secondaryStorage = createFileSr(conn, uri.getHost() + ":" + uri.getPath(), destVolume.getPath());
                // Look up the volume on the source primary storage pool
                VDI srcVdi = getVDIbyUuid(conn, srcVolume.getPath());
                // Copy the volume to secondary storage
                task = srcVdi.copyAsync2(conn, secondaryStorage, null, null);
                // poll every 1 seconds ,
                hypervisorResource.waitForTask(conn, task, 1000, wait * 1000);
                hypervisorResource.checkForSuccess(conn, task);
                VDI destVdi = Types.toVDI(task, conn);
                String destVolumeUUID = destVdi.getUuid(conn);


                VolumeObjectTO newVol = new VolumeObjectTO();
                newVol.setPath(destVolume.getPath() + File.separator + destVolumeUUID + ".vhd");
                newVol.setSize(srcVolume.getSize());
                return new CopyCmdAnswer(newVol);

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