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Example 6 with CreateTTLTxn

use of org.apache.zookeeper.txn.CreateTTLTxn in project zookeeper by apache.

the class PrepRequestProcessor method pRequest2TxnCreate.

private void pRequest2TxnCreate(int type, Request request, Record record, boolean deserialize) throws IOException, KeeperException {
    if (deserialize) {
        ByteBufferInputStream.byteBuffer2Record(request.request, record);
    }
    int flags;
    String path;
    List<ACL> acl;
    byte[] data;
    long ttl;
    if (type == OpCode.createTTL) {
        CreateTTLRequest createTtlRequest = (CreateTTLRequest) record;
        flags = createTtlRequest.getFlags();
        path = createTtlRequest.getPath();
        acl = createTtlRequest.getAcl();
        data = createTtlRequest.getData();
        ttl = createTtlRequest.getTtl();
    } else {
        CreateRequest createRequest = (CreateRequest) record;
        flags = createRequest.getFlags();
        path = createRequest.getPath();
        acl = createRequest.getAcl();
        data = createRequest.getData();
        ttl = -1;
    }
    CreateMode createMode = CreateMode.fromFlag(flags);
    validateCreateRequest(path, createMode, request, ttl);
    String parentPath = validatePathForCreate(path, request.sessionId);
    List<ACL> listACL = fixupACL(path, request.authInfo, acl);
    ChangeRecord parentRecord = getRecordForPath(parentPath);
    zks.checkACL(request.cnxn, parentRecord.acl, ZooDefs.Perms.CREATE, request.authInfo, path, listACL);
    int parentCVersion = parentRecord.stat.getCversion();
    if (createMode.isSequential()) {
        path = path + String.format(Locale.ENGLISH, "%010d", parentCVersion);
    }
    validatePath(path, request.sessionId);
    try {
        if (getRecordForPath(path) != null) {
            throw new KeeperException.NodeExistsException(path);
        }
    } catch (KeeperException.NoNodeException e) {
    // ignore this one
    }
    boolean ephemeralParent = EphemeralType.get(parentRecord.stat.getEphemeralOwner()) == EphemeralType.NORMAL;
    if (ephemeralParent) {
        throw new KeeperException.NoChildrenForEphemeralsException(path);
    }
    int newCversion = parentRecord.stat.getCversion() + 1;
    zks.checkQuota(path, null, data, OpCode.create);
    if (type == OpCode.createContainer) {
        request.setTxn(new CreateContainerTxn(path, data, listACL, newCversion));
    } else if (type == OpCode.createTTL) {
        request.setTxn(new CreateTTLTxn(path, data, listACL, newCversion, ttl));
    } else {
        request.setTxn(new CreateTxn(path, data, listACL, createMode.isEphemeral(), newCversion));
    }
    TxnHeader hdr = request.getHdr();
    long ephemeralOwner = 0;
    if (createMode.isContainer()) {
        ephemeralOwner = EphemeralType.CONTAINER_EPHEMERAL_OWNER;
    } else if (createMode.isTTL()) {
        ephemeralOwner = EphemeralType.TTL.toEphemeralOwner(ttl);
    } else if (createMode.isEphemeral()) {
        ephemeralOwner = request.sessionId;
    }
    StatPersisted s = DataTree.createStat(hdr.getZxid(), hdr.getTime(), ephemeralOwner);
    parentRecord = parentRecord.duplicate(request.getHdr().getZxid());
    parentRecord.childCount++;
    parentRecord.stat.setCversion(newCversion);
    parentRecord.stat.setPzxid(request.getHdr().getZxid());
    parentRecord.precalculatedDigest = precalculateDigest(DigestOpCode.UPDATE, parentPath, parentRecord.data, parentRecord.stat);
    addChangeRecord(parentRecord);
    ChangeRecord nodeRecord = new ChangeRecord(request.getHdr().getZxid(), path, s, 0, listACL);
    nodeRecord.data = data;
    nodeRecord.precalculatedDigest = precalculateDigest(DigestOpCode.ADD, path, nodeRecord.data, s);
    setTxnDigest(request, nodeRecord.precalculatedDigest);
    addChangeRecord(nodeRecord);
}
Also used : CreateContainerTxn(org.apache.zookeeper.txn.CreateContainerTxn) CreateRequest(org.apache.zookeeper.proto.CreateRequest) ACL(org.apache.zookeeper.data.ACL) CreateTTLRequest(org.apache.zookeeper.proto.CreateTTLRequest) CreateTTLTxn(org.apache.zookeeper.txn.CreateTTLTxn) CreateTxn(org.apache.zookeeper.txn.CreateTxn) CreateMode(org.apache.zookeeper.CreateMode) StatPersisted(org.apache.zookeeper.data.StatPersisted) ChangeRecord(org.apache.zookeeper.server.ZooKeeperServer.ChangeRecord) KeeperException(org.apache.zookeeper.KeeperException) TxnHeader(org.apache.zookeeper.txn.TxnHeader)

Aggregations

CreateContainerTxn (org.apache.zookeeper.txn.CreateContainerTxn)6 CreateTTLTxn (org.apache.zookeeper.txn.CreateTTLTxn)6 CreateTxn (org.apache.zookeeper.txn.CreateTxn)6 MultiTxn (org.apache.zookeeper.txn.MultiTxn)5 SetDataTxn (org.apache.zookeeper.txn.SetDataTxn)5 IOException (java.io.IOException)4 Record (org.apache.jute.Record)4 DeleteTxn (org.apache.zookeeper.txn.DeleteTxn)4 ErrorTxn (org.apache.zookeeper.txn.ErrorTxn)4 SetACLTxn (org.apache.zookeeper.txn.SetACLTxn)4 TxnHeader (org.apache.zookeeper.txn.TxnHeader)4 KeeperException (org.apache.zookeeper.KeeperException)3 Txn (org.apache.zookeeper.txn.Txn)3 ByteArrayInputStream (java.io.ByteArrayInputStream)2 EOFException (java.io.EOFException)2 ByteBuffer (java.nio.ByteBuffer)2 BinaryInputArchive (org.apache.jute.BinaryInputArchive)2 InputArchive (org.apache.jute.InputArchive)2 NoNodeException (org.apache.zookeeper.KeeperException.NoNodeException)2 Stat (org.apache.zookeeper.data.Stat)2