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metadata_report.go
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metadata_report.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package instance
import (
"sync"
)
import (
"dubbo.apache.org/dubbo-go/v3/common"
"dubbo.apache.org/dubbo-go/v3/common/extension"
"dubbo.apache.org/dubbo-go/v3/metadata/report"
)
var (
instance report.MetadataReport
reportUrl *common.URL
once sync.Once
)
// GetMetadataReportInstance will return the instance in lazy mode. Be careful the instance create will only
// execute once.
func GetMetadataReportInstance(selectiveUrl ...*common.URL) report.MetadataReport {
once.Do(func() {
var url *common.URL
if len(selectiveUrl) > 0 {
url = selectiveUrl[0]
instance = extension.GetMetadataReportFactory(url.Protocol).CreateMetadataReport(url)
reportUrl = url
}
})
return instance
}
// GetMetadataReportUrl will return the report instance url
func GetMetadataReportUrl() *common.URL {
return reportUrl
}
// SetMetadataReportUrl will only can be used by unit test to mock url
func SetMetadataReportUrl(url *common.URL) {
reportUrl = url
}