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reqimporter.go
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reqimporter.go
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// Copyright 2018-2021 CERN
//
// Licensed 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.
//
// In applying this license, CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
package importers
import (
"io/ioutil"
"net/http"
"net/url"
"github.com/rs/zerolog"
"github.com/cs3org/reva/v2/pkg/mentix/config"
"github.com/cs3org/reva/v2/pkg/mentix/exchangers"
"github.com/cs3org/reva/v2/pkg/mentix/meshdata"
)
// BaseRequestImporter implements basic importer functionality common to all request importers.
type BaseRequestImporter struct {
BaseImporter
exchangers.BaseRequestExchanger
}
// HandleRequest handles the actual HTTP request.
func (importer *BaseRequestImporter) HandleRequest(resp http.ResponseWriter, req *http.Request, conf *config.Configuration, log *zerolog.Logger) {
body, _ := ioutil.ReadAll(req.Body)
meshDataSet, status, respData, err := importer.handleQuery(body, req.URL.Query(), conf, log)
if err == nil {
if len(meshDataSet) > 0 {
importer.mergeImportedMeshDataSet(meshDataSet)
}
} else {
respData = []byte(err.Error())
}
resp.WriteHeader(status)
_, _ = resp.Write(respData)
}
func (importer *BaseRequestImporter) mergeImportedMeshDataSet(meshDataSet meshdata.Vector) {
// Merge the newly imported data with any existing data stored in the importer
if importer.meshDataUpdates != nil {
// Need to manually lock the data for writing
importer.updatesLocker.Lock()
defer importer.updatesLocker.Unlock()
importer.meshDataUpdates = append(importer.meshDataUpdates, meshDataSet...)
} else {
importer.setMeshDataUpdates(meshDataSet) // SetMeshData will do the locking itself
}
}
func (importer *BaseRequestImporter) handleQuery(data []byte, params url.Values, conf *config.Configuration, log *zerolog.Logger) (meshdata.Vector, int, []byte, error) {
// Data is read, so lock it for writing
importer.Locker().RLock()
defer importer.Locker().RUnlock()
return importer.HandleAction(importer.MeshData(), data, params, true, conf, log)
}