mirror of https://github.com/milvus-io/milvus.git
132 lines
4.2 KiB
Go
132 lines
4.2 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package client
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import (
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"context"
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"github.com/cockroachdb/errors"
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"google.golang.org/grpc"
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"github.com/milvus-io/milvus-proto/go-api/v2/milvuspb"
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"github.com/milvus-io/milvus/client/v2/entity"
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"github.com/milvus-io/milvus/pkg/util/merr"
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)
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// CreateCollection is the API for create a collection in Milvus.
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func (c *Client) CreateCollection(ctx context.Context, option CreateCollectionOption, callOptions ...grpc.CallOption) error {
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req := option.Request()
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err := c.callService(func(milvusService milvuspb.MilvusServiceClient) error {
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resp, err := milvusService.CreateCollection(ctx, req, callOptions...)
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return merr.CheckRPCCall(resp, err)
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})
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if err != nil {
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return err
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}
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indexes := option.Indexes()
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for _, indexOption := range indexes {
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task, err := c.CreateIndex(ctx, indexOption, callOptions...)
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if err != nil {
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return err
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}
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err = task.Await(ctx)
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if err != nil {
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return nil
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}
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}
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if option.IsFast() {
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task, err := c.LoadCollection(ctx, NewLoadCollectionOption(req.GetCollectionName()))
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if err != nil {
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return err
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}
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return task.Await(ctx)
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}
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return nil
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}
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func (c *Client) ListCollections(ctx context.Context, option ListCollectionOption, callOptions ...grpc.CallOption) (collectionNames []string, err error) {
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req := option.Request()
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err = c.callService(func(milvusService milvuspb.MilvusServiceClient) error {
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resp, err := milvusService.ShowCollections(ctx, req, callOptions...)
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err = merr.CheckRPCCall(resp, err)
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if err != nil {
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return err
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}
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collectionNames = resp.GetCollectionNames()
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return nil
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})
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return collectionNames, err
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}
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func (c *Client) DescribeCollection(ctx context.Context, option DescribeCollectionOption, callOptions ...grpc.CallOption) (collection *entity.Collection, err error) {
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req := option.Request()
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err = c.callService(func(milvusService milvuspb.MilvusServiceClient) error {
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resp, err := milvusService.DescribeCollection(ctx, req, callOptions...)
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err = merr.CheckRPCCall(resp, err)
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if err != nil {
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return err
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}
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collection = &entity.Collection{
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ID: resp.GetCollectionID(),
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Schema: entity.NewSchema().ReadProto(resp.GetSchema()),
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PhysicalChannels: resp.GetPhysicalChannelNames(),
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VirtualChannels: resp.GetVirtualChannelNames(),
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ConsistencyLevel: entity.ConsistencyLevel(resp.ConsistencyLevel),
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ShardNum: resp.GetShardsNum(),
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Properties: entity.KvPairsMap(resp.GetProperties()),
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}
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collection.Name = collection.Schema.CollectionName
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return nil
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})
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return collection, err
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}
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func (c *Client) HasCollection(ctx context.Context, option HasCollectionOption, callOptions ...grpc.CallOption) (has bool, err error) {
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req := option.Request()
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err = c.callService(func(milvusService milvuspb.MilvusServiceClient) error {
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resp, err := milvusService.DescribeCollection(ctx, req, callOptions...)
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err = merr.CheckRPCCall(resp, err)
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if err != nil {
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// ErrCollectionNotFound for collection not exist
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if errors.Is(err, merr.ErrCollectionNotFound) {
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return nil
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}
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return err
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}
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has = true
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return nil
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})
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return has, err
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}
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func (c *Client) DropCollection(ctx context.Context, option DropCollectionOption, callOptions ...grpc.CallOption) error {
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req := option.Request()
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err := c.callService(func(milvusService milvuspb.MilvusServiceClient) error {
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resp, err := milvusService.DropCollection(ctx, req, callOptions...)
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return merr.CheckRPCCall(resp, err)
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})
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return err
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}
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