Package org.libvirt

Examples of org.libvirt.Domain

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        String routerName = cmd.getAccessDetail(NetworkElementCommand.ROUTER_NAME);
        String routerIp = cmd.getAccessDetail(NetworkElementCommand.ROUTER_IP);

        try {
            conn = LibvirtConnection.getConnection();
            Domain vm = getDomain(conn, routerName);
            String [][] rules = cmd.generateFwRules();
            String[] aclRules = rules[0];
            NicTO nic = cmd.getNic();
            String dev = "eth" + nic.getDeviceId();
            String netmask = Long.toString(NetUtils.getCidrSize(nic.getNetmask()));
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        String routerIP = cmd.getAccessDetail(NetworkElementCommand.ROUTER_IP);
        IpAddressTO pubIP = cmd.getIpAddress();

        try {
            conn = LibvirtConnection.getConnection();
            Domain vm = getDomain(conn, routerName);
            Integer devNum = 0;
            String pubVlan = pubIP.getVlanId();
            List<InterfaceDef> pluggedNics = getInterfaces(conn, routerName);

            for (InterfaceDef pluggedNic : pluggedNics) {
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        String routerIP = cmd.getAccessDetail(NetworkElementCommand.ROUTER_IP);

        try {
            conn = LibvirtConnection.getConnection();
            IpAddressTO[] ips = cmd.getIpAddresses();
            Domain vm = getDomain(conn, routerName);
            Integer devNum = 0;
            Map<String, Integer> vlanToNicNum = new HashMap<String, Integer>();
            List<InterfaceDef> pluggedNics = getInterfaces(conn, routerName);

            for (InterfaceDef pluggedNic : pluggedNics) {
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        String snapshotPath = cmd.getSnapshotPath();
        String vmName = cmd.getVmName();
        try {
            Connect conn = LibvirtConnection.getConnection();
            DomainInfo.DomainState state = null;
            Domain vm = null;
            if (vmName != null) {
                try {
                    vm = getDomain(conn, cmd.getVmName());
                    state = vm.getInfo().state;
                } catch (LibvirtException e) {

                }
            }

            KVMStoragePool primaryPool = _storagePoolMgr.getStoragePool(cmd
                    .getPool().getUuid());

            if (primaryPool.getType() == StoragePoolType.RBD) {
                s_logger.debug("Snapshots are not supported on RBD volumes");
                return new ManageSnapshotAnswer(cmd, false,
                    "Snapshots are not supported on RBD volumes");
            }

            KVMPhysicalDisk disk = primaryPool.getPhysicalDisk(cmd
                    .getVolumePath());
            if (state == DomainInfo.DomainState.VIR_DOMAIN_RUNNING
                    && !primaryPool.isExternalSnapshot()) {
                String vmUuid = vm.getUUIDString();
                Object[] args = new Object[] { snapshotName, vmUuid };
                String snapshot = SnapshotXML.format(args);
                s_logger.debug(snapshot);
                if (cmd.getCommandSwitch().equalsIgnoreCase(
                        ManageSnapshotCommand.CREATE_SNAPSHOT)) {
                    vm.snapshotCreateXML(snapshot);
                } else {
                    DomainSnapshot snap = vm.snapshotLookupByName(snapshotName);
                    snap.delete(0);
                }

                /*
                 * libvirt on RHEL6 doesn't handle resume event emitted from
                 * qemu
                 */
                vm = getDomain(conn, cmd.getVmName());
                state = vm.getInfo().state;
                if (state == DomainInfo.DomainState.VIR_DOMAIN_PAUSED) {
                    vm.resume();
                }
            } else {

                /* VM is not running, create a snapshot by ourself */
                final Script command = new Script(_manageSnapshotPath,
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                return new BackupSnapshotAnswer(cmd, false, result, null, true);
            }
            /* Delete the snapshot on primary */

            DomainInfo.DomainState state = null;
            Domain vm = null;
            if (vmName != null) {
                try {
                    vm = getDomain(conn, cmd.getVmName());
                    state = vm.getInfo().state;
                } catch (LibvirtException e) {

                }
            }

            KVMStoragePool primaryStorage = _storagePoolMgr.getStoragePool(cmd
                    .getPool().getUuid());
            if (state == DomainInfo.DomainState.VIR_DOMAIN_RUNNING
                    && !primaryStorage.isExternalSnapshot()) {
                String vmUuid = vm.getUUIDString();
                Object[] args = new Object[] { snapshotName, vmUuid };
                String snapshot = SnapshotXML.format(args);
                s_logger.debug(snapshot);
                DomainSnapshot snap = vm.snapshotLookupByName(snapshotName);
                snap.delete(0);

                /*
                 * libvirt on RHEL6 doesn't handle resume event emitted from
                 * qemu
                 */
                vm = getDomain(conn, cmd.getVmName());
                state = vm.getInfo().state;
                if (state == DomainInfo.DomainState.VIR_DOMAIN_PAUSED) {
                    vm.resume();
                }
            } else {
                command = new Script(_manageSnapshotPath, _cmdsTimeout,
                        s_logger);
                command.add("-d", snapshotDisk.getPath());
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        return state == null ? State.Unknown : state;
    }

    protected State getVmState(Connect conn, final String vmName) {
        int retry = 3;
        Domain vms = null;
        while (retry-- > 0) {
            try {
                vms = conn.domainLookupByUUID(UUID.nameUUIDFromBytes(vmName
                        .getBytes()));
                State s = convertToState(vms.getInfo().state);
                return s;
            } catch (final LibvirtException e) {
                s_logger.warn("Can't get vm state " + vmName + e.getMessage()
                        + "retry:" + retry);
            } catch (Exception e) {
                s_logger.warn("Can't get vm state " + vmName + e.getMessage()
                        + "retry:" + retry);
            } finally {
                try {
                    if (vms != null) {
                        vms.free();
                    }
                } catch (final LibvirtException e) {

                }
            }
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        synchronized (_vms) {
            state = _vms.get(vmName);
            _vms.put(vmName, State.Stopping);
        }

        Domain dm = null;
        Connect dconn = null;
        Domain destDomain = null;
        Connect conn = null;
        try {
            conn = LibvirtConnection.getConnection();
            dm = conn.domainLookupByUUID(UUID.nameUUIDFromBytes(vmName
                    .getBytes()));
            dconn = new Connect("qemu+tcp://" + cmd.getDestinationIp()
                    + "/system");
            /*
             * Hard code lm flags: VIR_MIGRATE_LIVE(1<<0) and
             * VIR_MIGRATE_PERSIST_DEST(1<<3)
             */
            destDomain = dm.migrate(dconn, (1 << 0) | (1 << 3), vmName, "tcp:"
                    + cmd.getDestinationIp(), _migrateSpeed);
        } catch (LibvirtException e) {
            s_logger.debug("Can't migrate domain: " + e.getMessage());
            result = e.getMessage();
        } catch (Exception e) {
            s_logger.debug("Can't migrate domain: " + e.getMessage());
            result = e.getMessage();
        } finally {
            try {
                if (dm != null) {
                    dm.free();
                }
                if (dconn != null) {
                    dconn.close();
                }
                if (destDomain != null) {
                    destDomain.free();
                }
            } catch (final LibvirtException e) {

            }
        }
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    protected synchronized String attachOrDetachDisk(Connect conn,
            boolean attach, String vmName, KVMPhysicalDisk attachingDisk,
            int devId) throws LibvirtException, InternalErrorException {
        List<DiskDef> disks = null;
        Domain dm = null;
        DiskDef diskdef = null;
        try {
            if (!attach) {
                dm = conn.domainLookupByUUID(UUID.nameUUIDFromBytes(vmName
                        .getBytes()));
                LibvirtDomainXMLParser parser = new LibvirtDomainXMLParser();
                String xml = dm.getXMLDesc(0);
                parser.parseDomainXML(xml);
                disks = parser.getDisks();

                for (DiskDef disk : disks) {
                    String file = disk.getDiskPath();
                    if (file != null
                            && file.equalsIgnoreCase(attachingDisk.getPath())) {
                        diskdef = disk;
                        break;
                    }
                }
                if (diskdef == null) {
                    throw new InternalErrorException("disk: "
                            + attachingDisk.getPath()
                            + " is not attached before");
                }
            } else {
                diskdef = new DiskDef();
                if (attachingDisk.getFormat() == PhysicalDiskFormat.QCOW2) {
                    diskdef.defFileBasedDisk(attachingDisk.getPath(), devId,
                            DiskDef.diskBus.VIRTIO, DiskDef.diskFmtType.QCOW2);
                } else if (attachingDisk.getFormat() == PhysicalDiskFormat.RAW) {
                    diskdef.defBlockBasedDisk(attachingDisk.getPath(), devId,
                            DiskDef.diskBus.VIRTIO);
                }
            }

            String xml = diskdef.toString();
            return attachOrDetachDevice(conn, attach, vmName, xml);
        } finally {
            if (dm != null) {
                dm.free();
            }
        }
    }
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    }

    protected synchronized String attachOrDetachDevice(Connect conn,
            boolean attach, String vmName, String xml) throws LibvirtException,
            InternalErrorException {
        Domain dm = null;
        try {
            dm = conn.domainLookupByUUID(UUID.nameUUIDFromBytes((vmName
                    .getBytes())));

            if (attach) {
                s_logger.debug("Attaching device: " + xml);
                dm.attachDevice(xml);
            } else {
                s_logger.debug("Detaching device: " + xml);
                dm.detachDevice(xml);
            }
        } catch (LibvirtException e) {
            if (attach) {
                s_logger.warn("Failed to attach device to " + vmName + ": "
                        + e.getMessage());
            } else {
                s_logger.warn("Failed to detach device from " + vmName + ": "
                        + e.getMessage());
            }
            throw e;
        } catch (Exception e) {
            throw new InternalErrorException(e.toString());
        } finally {
            if (dm != null) {
                try {
                    dm.free();
                } catch (LibvirtException l) {

                }
            }
        }
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    }

    protected State getRealPowerState(String vm) {
        int i = 0;
        s_logger.trace("Checking on the HALTED State");
        Domain dm = null;
        for (; i < 5; i++) {
            try {
                Connect conn = LibvirtConnection.getConnection();
                dm = conn.domainLookupByUUID(UUID.nameUUIDFromBytes(vm
                        .getBytes()));
                DomainInfo.DomainState vps = dm.getInfo().state;
                if (vps != null
                        && vps != DomainInfo.DomainState.VIR_DOMAIN_SHUTOFF
                        && vps != DomainInfo.DomainState.VIR_DOMAIN_NOSTATE) {
                    return convertToState(vps);
                }
            } catch (final LibvirtException e) {
                s_logger.trace(e.getMessage());
            } catch (Exception e) {
                s_logger.trace(e.getMessage());
            } finally {
                try {
                    if (dm != null) {
                        dm.free();
                    }
                } catch (final LibvirtException e) {

                }
            }
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Related Classes of org.libvirt.Domain

  • com.cloud.hypervisor.kvm.resource.LibvirtComputingResource
  • com.cloud.hypervisor.kvm.resource.LibvirtComputingResourceTest
  • com.cloud.hypervisor.kvm.storage.KVMStorageProcessor
  • org.jclouds.libvirt.compute.strategy.LibvirtComputeServiceAdapter
  • org.rhq.plugins.virt.LibVirtConnection
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