github.com/kaleido-io/firefly@v0.0.0-20210622132723-8b4b6aacb971/internal/broadcast/datatype.go (about)

     1  // Copyright © 2021 Kaleido, Inc.
     2  //
     3  // SPDX-License-Identifier: Apache-2.0
     4  //
     5  // Licensed under the Apache License, Version 2.0 (the "License");
     6  // you may not use this file except in compliance with the License.
     7  // You may obtain a copy of the License at
     8  //
     9  //     http://www.apache.org/licenses/LICENSE-2.0
    10  //
    11  // Unless required by applicable law or agreed to in writing, software
    12  // distributed under the License is distributed on an "AS IS" BASIS,
    13  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14  // See the License for the specific language governing permissions and
    15  // limitations under the License.
    16  
    17  package broadcast
    18  
    19  import (
    20  	"context"
    21  
    22  	"github.com/kaleido-io/firefly/pkg/fftypes"
    23  )
    24  
    25  func (bm *broadcastManager) BroadcastDatatype(ctx context.Context, ns string, datatype *fftypes.Datatype) (msg *fftypes.Message, err error) {
    26  
    27  	// Validate the input data definition data
    28  	datatype.ID = fftypes.NewUUID()
    29  	datatype.Created = fftypes.Now()
    30  	datatype.Namespace = ns
    31  	if datatype.Validator == "" {
    32  		datatype.Validator = fftypes.ValidatorTypeJSON
    33  	}
    34  	if err := datatype.Validate(ctx, false); err != nil {
    35  		return nil, err
    36  	}
    37  	if err = bm.data.VerifyNamespaceExists(ctx, datatype.Namespace); err != nil {
    38  		return nil, err
    39  	}
    40  	datatype.Hash = datatype.Value.Hash()
    41  
    42  	// Verify the data type is now all valid, before we broadcast it
    43  	err = bm.data.CheckDatatype(ctx, ns, datatype)
    44  	if err != nil {
    45  		return nil, err
    46  	}
    47  	return bm.broadcastDefinitionAsNode(ctx, datatype, fftypes.SystemTagDefineDatatype)
    48  }