mirror of
https://github.com/tickstep/aliyunpan.git
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83 lines
2.5 KiB
Go
83 lines
2.5 KiB
Go
// Copyright (c) 2020 tickstep.
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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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package transfer
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import (
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"time"
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)
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type (
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//DownloadInstanceInfo 状态详细信息, 用于导出状态文件
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DownloadInstanceInfo struct {
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DownloadStatus *DownloadStatus
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Ranges RangeList
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}
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// DownloadInstanceInfoExport 断点续传
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DownloadInstanceInfoExport struct {
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RangeGenMode RangeGenMode `json:"rangeGenMode,omitempty"`
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TotalSize int64 `json:"totalSize,omitempty"`
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GenBegin int64 `json:"genBegin,omitempty"`
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BlockSize int64 `json:"blockSize,omitempty"`
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Ranges []*Range `json:"ranges,omitempty"`
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}
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)
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// GetInstanceInfo 从断点信息获取下载状态
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func (m *DownloadInstanceInfoExport) GetInstanceInfo() (eii *DownloadInstanceInfo) {
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eii = &DownloadInstanceInfo{
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Ranges: m.Ranges,
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}
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var downloaded int64
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switch m.RangeGenMode {
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case RangeGenMode_BlockSize:
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downloaded = m.GenBegin - eii.Ranges.Len()
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default:
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downloaded = m.TotalSize - eii.Ranges.Len()
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}
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eii.DownloadStatus = &DownloadStatus{
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startTime: time.Now(),
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totalSize: m.TotalSize,
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downloaded: downloaded,
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gen: NewRangeListGenBlockSize(m.TotalSize, m.GenBegin, m.BlockSize),
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}
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switch m.RangeGenMode {
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case RangeGenMode_BlockSize:
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eii.DownloadStatus.gen = NewRangeListGenBlockSize(m.TotalSize, m.GenBegin, m.BlockSize)
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default:
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eii.DownloadStatus.gen = NewRangeListGenDefault(m.TotalSize, m.TotalSize, len(m.Ranges), len(m.Ranges))
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}
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return eii
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}
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// SetInstanceInfo 从下载状态导出断点信息
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func (m *DownloadInstanceInfoExport) SetInstanceInfo(eii *DownloadInstanceInfo) {
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if eii == nil {
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return
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}
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if eii.DownloadStatus != nil {
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m.TotalSize = eii.DownloadStatus.TotalSize()
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if eii.DownloadStatus.gen != nil {
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m.GenBegin = eii.DownloadStatus.gen.LoadBegin()
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m.BlockSize = eii.DownloadStatus.gen.LoadBlockSize()
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m.RangeGenMode = eii.DownloadStatus.gen.RangeGenMode()
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} else {
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m.RangeGenMode = RangeGenMode_Default
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}
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}
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m.Ranges = eii.Ranges
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}
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