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package filer
import (
"bytes"
"fmt"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/util"
"github.com/chrislusf/seaweedfs/weed/wdclient"
"io/ioutil"
"math"
"net/http"
"time"
)
func ReadEntry(masterClient *wdclient.MasterClient, filerClient filer_pb.SeaweedFilerClient, dir, name string, byteBuffer *bytes.Buffer) error {
request := &filer_pb.LookupDirectoryEntryRequest{
Directory: dir,
Name: name,
}
respLookupEntry, err := filer_pb.LookupEntry(filerClient, request)
if err != nil {
return err
}
if len(respLookupEntry.Entry.Content) > 0 {
_, err = byteBuffer.Write(respLookupEntry.Entry.Content)
return err
}
return StreamContent(masterClient, byteBuffer, respLookupEntry.Entry.Chunks, 0, math.MaxInt64)
}
func ReadContent(filerAddress string, dir, name string) ([]byte, error) {
target := fmt.Sprintf("http://%s%s/%s", filerAddress, dir, name)
data, _, err := util.Get(target)
return data, err
}
func SaveAs(host string, port int, dir, name string, contentType string, byteBuffer *bytes.Buffer) error {
target := fmt.Sprintf("http://%s:%d%s/%s", host, port, dir, name)
// set the HTTP method, url, and request body
req, err := http.NewRequest(http.MethodPut, target, byteBuffer)
if err != nil {
return err
}
// set the request header Content-Type for json
if contentType != "" {
req.Header.Set("Content-Type", contentType)
}
resp, err := http.DefaultClient.Do(req)
if err != nil {
return err
}
defer util.CloseResponse(resp)
b, err := ioutil.ReadAll(resp.Body)
if err != nil {
return err
}
if resp.StatusCode >= 400 {
return fmt.Errorf("%s: %s %v", target, resp.Status, string(b))
}
return nil
}
func SaveInsideFiler(client filer_pb.SeaweedFilerClient, dir, name string, content []byte) error {
resp, err := filer_pb.LookupEntry(client, &filer_pb.LookupDirectoryEntryRequest{
Directory: dir,
Name: name,
})
if err == filer_pb.ErrNotFound {
err = filer_pb.CreateEntry(client, &filer_pb.CreateEntryRequest{
Directory: dir,
Entry: &filer_pb.Entry{
Name: name,
IsDirectory: false,
Attributes: &filer_pb.FuseAttributes{
Mtime: time.Now().Unix(),
Crtime: time.Now().Unix(),
FileMode: uint32(0644),
Collection: "",
Replication: "",
FileSize: uint64(len(content)),
},
Content: content,
},
})
} else if err == nil {
entry := resp.Entry
entry.Content = content
entry.Attributes.Mtime = time.Now().Unix()
entry.Attributes.FileSize = uint64(len(content))
err = filer_pb.UpdateEntry(client, &filer_pb.UpdateEntryRequest{
Directory: dir,
Entry: entry,
})
}
return err
}
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