Package org.apache.zookeeper.txn

Examples of org.apache.zookeeper.txn.CheckVersionTxn

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                if(deserialize)
                    ByteBufferInputStream.byteBuffer2Record(request.request, checkVersionRequest);
                path = checkVersionRequest.getPath();
                nodeRecord = getRecordForPath(path);
                checkACL(zks, nodeRecord.acl, ZooDefs.Perms.READ, request.authInfo);
                request.setTxn(new CheckVersionTxn(path, checkAndIncVersion(nodeRecord.stat.getVersion(),
                        checkVersionRequest.getVersion(), path)));
                break;
            default:
                LOG.warn("unknown type " + type);
                break;
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                case OpCode.error:
                    ErrorTxn errTxn = (ErrorTxn) txn;
                    rc.err = errTxn.getErr();
                    break;
                case OpCode.check:
                    CheckVersionTxn checkTxn = (CheckVersionTxn) txn;
                    debug = "Check Version transaction for "
                            + checkTxn.getPath()
                            + " and version="
                            + checkTxn.getVersion();
                    rc.path = checkTxn.getPath();
                    break;
                case OpCode.multi:
                    MultiTxn multiTxn = (MultiTxn) txn ;
                    List<Txn> txns = multiTxn.getTxns();
                    debug = "Multi transaction with " + txns.size() + " operations";
                    rc.multiResult = new ArrayList<ProcessTxnResult>();
                    boolean failed = false;
                    for (Txn subtxn : txns) {
                        if (subtxn.getType() == OpCode.error) {
                            failed = true;
                            break;
                        }
                    }

                    boolean post_failed = false;
                    for (Txn subtxn : txns) {
                        ByteBuffer bb = ByteBuffer.wrap(subtxn.getData());
                        Record record = null;
                        switch (subtxn.getType()) {
                            case OpCode.create:
                                record = new CreateTxn();
                                break;
                            case OpCode.delete:
                                record = new DeleteTxn();
                                break;
                            case OpCode.setData:
                                record = new SetDataTxn();
                                break;
                            case OpCode.error:
                                record = new ErrorTxn();
                                post_failed = true;
                                break;
                            case OpCode.check:
                                record = new CheckVersionTxn();
                                break;
                            default:
                                throw new IOException("Invalid type of op: " + subtxn.getType());
                        }
                        assert(record != null);
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                currentVersion = nodeRecord.stat.getVersion();
                if (version != -1 && version != currentVersion) {
                    throw new KeeperException.BadVersionException(path);
                }
                version = currentVersion + 1;
                request.txn = new CheckVersionTxn(path, version);
                break;
        }
    }
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                currentVersion = nodeRecord.stat.getVersion();
                if (version != -1 && version != currentVersion) {
                    throw new KeeperException.BadVersionException(path);
                }
                version = currentVersion + 1;
                request.txn = new CheckVersionTxn(path, version);
                break;
        }
    }
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                case OpCode.error:
                    ErrorTxn errTxn = (ErrorTxn) txn;
                    rc.err = errTxn.getErr();
                    break;
                case OpCode.check:
                    CheckVersionTxn checkTxn = (CheckVersionTxn) txn;
                    rc.path = checkTxn.getPath();
                    break;
                case OpCode.multi:
                    MultiTxn multiTxn = (MultiTxn) txn ;
                    List<Txn> txns = multiTxn.getTxns();
                    rc.multiResult = new ArrayList<ProcessTxnResult>();
                    boolean failed = false;
                    for (Txn subtxn : txns) {
                        if (subtxn.getType() == OpCode.error) {
                            failed = true;
                            break;
                        }
                    }

                    boolean post_failed = false;
                    for (Txn subtxn : txns) {
                        ByteBuffer bb = ByteBuffer.wrap(subtxn.getData());
                        Record record = null;
                        switch (subtxn.getType()) {
                            case OpCode.create:
                                record = new CreateTxn();
                                break;
                            case OpCode.delete:
                                record = new DeleteTxn();
                                break;
                            case OpCode.setData:
                                record = new SetDataTxn();
                                break;
                            case OpCode.error:
                                record = new ErrorTxn();
                                post_failed = true;
                                break;
                            case OpCode.check:
                                record = new CheckVersionTxn();
                                break;
                            default:
                                throw new IOException("Invalid type of op: " + subtxn.getType());
                        }
                        assert(record != null);
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                case OpCode.error:
                    ErrorTxn errTxn = (ErrorTxn) txn;
                    rc.err = errTxn.getErr();
                    break;
                case OpCode.check:
                    CheckVersionTxn checkTxn = (CheckVersionTxn) txn;
                    debug = "Check Version transaction for "
                            + checkTxn.getPath()
                            + " and version="
                            + checkTxn.getVersion();
                    rc.path = checkTxn.getPath();
                    break;
                case OpCode.multi:
                    MultiTxn multiTxn = (MultiTxn) txn ;
                    List<Txn> txns = multiTxn.getTxns();
                    debug = "Multi transaction with " + txns.size() + " operations";
                    rc.multiResult = new ArrayList<ProcessTxnResult>();
                    boolean failed = false;
                    for (Txn subtxn : txns) {
                        if (subtxn.getType() == OpCode.error) {
                            failed = true;
                            break;
                        }
                    }

                    boolean post_failed = false;
                    for (Txn subtxn : txns) {
                        ByteBuffer bb = ByteBuffer.wrap(subtxn.getData());
                        Record record = null;
                        switch (subtxn.getType()) {
                            case OpCode.create:
                                record = new CreateTxn();
                                break;
                            case OpCode.delete:
                                record = new DeleteTxn();
                                break;
                            case OpCode.setData:
                                record = new SetDataTxn();
                                break;
                            case OpCode.error:
                                record = new ErrorTxn();
                                post_failed = true;
                                break;
                            case OpCode.check:
                                record = new CheckVersionTxn();
                                break;
                            default:
                                throw new IOException("Invalid type of op: " + subtxn.getType());
                        }
                        assert(record != null);
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                currentVersion = nodeRecord.stat.getVersion();
                if (version != -1 && version != currentVersion) {
                    throw new KeeperException.BadVersionException(path);
                }
                version = currentVersion + 1;
                request.txn = new CheckVersionTxn(path, version);
                break;
        }
    }
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                case OpCode.error:
                    ErrorTxn errTxn = (ErrorTxn) txn;
                    rc.err = errTxn.getErr();
                    break;
                case OpCode.check:
                    CheckVersionTxn checkTxn = (CheckVersionTxn) txn;
                    debug = "Check Version transaction for "
                            + checkTxn.getPath()
                            + " and version="
                            + checkTxn.getVersion();
                    rc.path = checkTxn.getPath();
                    break;
                case OpCode.multi:
                    MultiTxn multiTxn = (MultiTxn) txn ;
                    List<Txn> txns = multiTxn.getTxns();
                    debug = "Multi transaction with " + txns.size() + " operations";
                    rc.multiResult = new ArrayList<ProcessTxnResult>();
                    boolean failed = false;
                    for (Txn subtxn : txns) {
                        if (subtxn.getType() == OpCode.error) {
                            failed = true;
                            break;
                        }
                    }

                    boolean post_failed = false;
                    for (Txn subtxn : txns) {
                        ByteBuffer bb = ByteBuffer.wrap(subtxn.getData());
                        Record record = null;
                        switch (subtxn.getType()) {
                            case OpCode.create:
                                record = new CreateTxn();
                                break;
                            case OpCode.delete:
                                record = new DeleteTxn();
                                break;
                            case OpCode.setData:
                                record = new SetDataTxn();
                                break;
                            case OpCode.error:
                                record = new ErrorTxn();
                                post_failed = true;
                                break;
                            case OpCode.check:
                                record = new CheckVersionTxn();
                                break;
                            default:
                                throw new IOException("Invalid type of op: " + subtxn.getType());
                        }
                        assert(record != null);
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                case OpCode.error:
                    ErrorTxn errTxn = (ErrorTxn) txn;
                    rc.err = errTxn.getErr();
                    break;
                case OpCode.check:
                    CheckVersionTxn checkTxn = (CheckVersionTxn) txn;
                    rc.path = checkTxn.getPath();
                    break;
                case OpCode.multi:
                    MultiTxn multiTxn = (MultiTxn) txn ;
                    List<Txn> txns = multiTxn.getTxns();
                    rc.multiResult = new ArrayList<ProcessTxnResult>();
                    boolean failed = false;
                    for (Txn subtxn : txns) {
                        if (subtxn.getType() == OpCode.error) {
                            failed = true;
                            break;
                        }
                    }

                    boolean post_failed = false;
                    for (Txn subtxn : txns) {
                        ByteBuffer bb = ByteBuffer.wrap(subtxn.getData());
                        Record record = null;
                        switch (subtxn.getType()) {
                            case OpCode.create:
                                record = new CreateTxn();
                                break;
                            case OpCode.delete:
                                record = new DeleteTxn();
                                break;
                            case OpCode.setData:
                                record = new SetDataTxn();
                                break;
                            case OpCode.error:
                                record = new ErrorTxn();
                                post_failed = true;
                                break;
                            case OpCode.check:
                                record = new CheckVersionTxn();
                                break;
                            default:
                                throw new IOException("Invalid type of op: " + subtxn.getType());
                        }
                        assert(record != null);
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                currentVersion = nodeRecord.stat.getVersion();
                if (version != -1 && version != currentVersion) {
                    throw new KeeperException.BadVersionException(path);
                }
                version = currentVersion + 1;
                request.txn = new CheckVersionTxn(path, version);
                break;
        }
    }
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Related Classes of org.apache.zookeeper.txn.CheckVersionTxn

  • org.apache.zookeeper.server.DataTree
  • org.apache.zookeeper.server.PrepRequestProcessor
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