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99 lines
3.4 KiB
99 lines
3.4 KiB
/*
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* Minio Cloud Storage, (C) 2015 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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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*/
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package fs
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import (
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"strings"
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"github.com/minio/minio-xl/pkg/probe"
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)
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func (fs API) filterObjects(bucket string, content contentInfo, resources BucketResourcesMetadata) (ObjectMetadata, BucketResourcesMetadata, *probe.Error) {
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var err *probe.Error
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var metadata ObjectMetadata
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name := content.Prefix
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switch true {
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// Both delimiter and Prefix is present
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case resources.Delimiter != "" && resources.Prefix != "":
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if strings.HasPrefix(name, resources.Prefix) {
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trimmedName := strings.TrimPrefix(name, resources.Prefix)
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delimitedName := delimiter(trimmedName, resources.Delimiter)
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switch true {
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case name == resources.Prefix:
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// Use resources.Prefix to filter out delimited file
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metadata, err = getMetadata(fs.path, bucket, name)
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if err != nil {
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return ObjectMetadata{}, resources, err.Trace()
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}
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case delimitedName == content.FileInfo.Name():
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// Use resources.Prefix to filter out delimited files
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metadata, err = getMetadata(fs.path, bucket, name)
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if err != nil {
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return ObjectMetadata{}, resources, err.Trace()
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}
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if metadata.Mode.IsDir() {
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resources.CommonPrefixes = append(resources.CommonPrefixes, name+resources.Delimiter)
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sortUnique(resources.CommonPrefixes)
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return ObjectMetadata{}, resources, nil
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}
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case delimitedName != "":
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resources.CommonPrefixes = append(resources.CommonPrefixes, resources.Prefix+delimitedName)
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sortUnique(resources.CommonPrefixes)
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}
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}
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// Delimiter present and Prefix is absent
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case resources.Delimiter != "" && resources.Prefix == "":
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delimitedName := delimiter(name, resources.Delimiter)
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switch true {
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case delimitedName == "":
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metadata, err = getMetadata(fs.path, bucket, name)
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if err != nil {
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return ObjectMetadata{}, resources, err.Trace()
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}
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case delimitedName == content.FileInfo.Name():
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metadata, err = getMetadata(fs.path, bucket, name)
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if err != nil {
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return ObjectMetadata{}, resources, err.Trace()
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}
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if metadata.Mode.IsDir() {
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resources.CommonPrefixes = append(resources.CommonPrefixes, name+resources.Delimiter)
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sortUnique(resources.CommonPrefixes)
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return ObjectMetadata{}, resources, nil
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}
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case delimitedName != "":
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resources.CommonPrefixes = append(resources.CommonPrefixes, delimitedName)
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sortUnique(resources.CommonPrefixes)
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}
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// Delimiter is absent and only Prefix is present
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case resources.Delimiter == "" && resources.Prefix != "":
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if strings.HasPrefix(name, resources.Prefix) {
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// Do not strip prefix object output
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metadata, err = getMetadata(fs.path, bucket, name)
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if err != nil {
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return ObjectMetadata{}, resources, err.Trace()
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}
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}
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default:
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metadata, err = getMetadata(fs.path, bucket, name)
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if err != nil {
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return ObjectMetadata{}, resources, err.Trace()
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}
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}
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return metadata, resources, nil
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}
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