Java Code Examples for org.apache.hadoop.hbase.TableName#isLegalNamespaceName()

The following examples show how to use org.apache.hadoop.hbase.TableName#isLegalNamespaceName() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: HMaster.java    From hbase with Apache License 2.0 5 votes vote down vote up 
/**
 * Create a new Namespace.
 * @param namespaceDescriptor descriptor for new Namespace
 * @param nonceGroup Identifier for the source of the request, a client or process.
 * @param nonce A unique identifier for this operation from the client or process identified by
 * <code>nonceGroup</code> (the source must ensure each operation gets a unique id).
 * @return procedure id
 */
long createNamespace(final NamespaceDescriptor namespaceDescriptor, final long nonceGroup,
    final long nonce) throws IOException {
  checkInitialized();

  TableName.isLegalNamespaceName(Bytes.toBytes(namespaceDescriptor.getName()));

  return MasterProcedureUtil.submitProcedure(new MasterProcedureUtil.NonceProcedureRunnable(this,
        nonceGroup, nonce) {
    @Override
    protected void run() throws IOException {
      getMaster().getMasterCoprocessorHost().preCreateNamespace(namespaceDescriptor);
      // We need to wait for the procedure to potentially fail due to "prepare" sanity
      // checks. This will block only the beginning of the procedure. See HBASE-19953.
      ProcedurePrepareLatch latch = ProcedurePrepareLatch.createBlockingLatch();
      LOG.info(getClientIdAuditPrefix() + " creating " + namespaceDescriptor);
      // Execute the operation synchronously - wait for the operation to complete before
      // continuing.
      setProcId(getClusterSchema().createNamespace(namespaceDescriptor, getNonceKey(), latch));
      latch.await();
      getMaster().getMasterCoprocessorHost().postCreateNamespace(namespaceDescriptor);
    }

    @Override
    protected String getDescription() {
      return "CreateNamespaceProcedure";
    }
  });
}
Example 2
Source File: HMaster.java    From hbase with Apache License 2.0 5 votes vote down vote up 
/**
 * Modify an existing Namespace.
 * @param nonceGroup Identifier for the source of the request, a client or process.
 * @param nonce A unique identifier for this operation from the client or process identified by
 * <code>nonceGroup</code> (the source must ensure each operation gets a unique id).
 * @return procedure id
 */
long modifyNamespace(final NamespaceDescriptor newNsDescriptor, final long nonceGroup,
    final long nonce) throws IOException {
  checkInitialized();

  TableName.isLegalNamespaceName(Bytes.toBytes(newNsDescriptor.getName()));

  return MasterProcedureUtil.submitProcedure(new MasterProcedureUtil.NonceProcedureRunnable(this,
        nonceGroup, nonce) {
    @Override
    protected void run() throws IOException {
      NamespaceDescriptor oldNsDescriptor = getNamespace(newNsDescriptor.getName());
      getMaster().getMasterCoprocessorHost().preModifyNamespace(oldNsDescriptor, newNsDescriptor);
      // We need to wait for the procedure to potentially fail due to "prepare" sanity
      // checks. This will block only the beginning of the procedure. See HBASE-19953.
      ProcedurePrepareLatch latch = ProcedurePrepareLatch.createBlockingLatch();
      LOG.info(getClientIdAuditPrefix() + " modify " + newNsDescriptor);
      // Execute the operation synchronously - wait for the operation to complete before
      // continuing.
      setProcId(getClusterSchema().modifyNamespace(newNsDescriptor, getNonceKey(), latch));
      latch.await();
      getMaster().getMasterCoprocessorHost().postModifyNamespace(oldNsDescriptor,
        newNsDescriptor);
    }

    @Override
    protected String getDescription() {
      return "ModifyNamespaceProcedure";
    }
  });
}