bf51655a7b
Signed-off-by: Jacek J. Łakis <jacek.lakis@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
92 lines
2.7 KiB
Go
92 lines
2.7 KiB
Go
// Copyright 2016 Google Inc. All Rights Reserved.
|
|
//
|
|
// 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.
|
|
|
|
package logadmin_test
|
|
|
|
import (
|
|
"bytes"
|
|
"flag"
|
|
"fmt"
|
|
"html/template"
|
|
"log"
|
|
"net/http"
|
|
|
|
"cloud.google.com/go/logging"
|
|
"cloud.google.com/go/logging/logadmin"
|
|
"golang.org/x/net/context"
|
|
"google.golang.org/api/iterator"
|
|
)
|
|
|
|
var (
|
|
client *logadmin.Client
|
|
projectID = flag.String("project-id", "", "ID of the project to use")
|
|
)
|
|
|
|
func ExampleClient_Entries_pagination() {
|
|
// This example demonstrates how to iterate through items a page at a time
|
|
// even if each successive page is fetched by a different process. It is a
|
|
// complete web server that displays pages of log entries. To run it as a
|
|
// standalone program, rename both the package and this function to "main".
|
|
ctx := context.Background()
|
|
flag.Parse()
|
|
if *projectID == "" {
|
|
log.Fatal("-project-id missing")
|
|
}
|
|
var err error
|
|
client, err = logadmin.NewClient(ctx, *projectID)
|
|
if err != nil {
|
|
log.Fatalf("creating logging client: %v", err)
|
|
}
|
|
|
|
http.HandleFunc("/entries", handleEntries)
|
|
log.Print("listening on 8080")
|
|
log.Fatal(http.ListenAndServe(":8080", nil))
|
|
}
|
|
|
|
var pageTemplate = template.Must(template.New("").Parse(`
|
|
<table>
|
|
{{range .Entries}}
|
|
<tr><td>{{.}}</td></tr>
|
|
{{end}}
|
|
</table>
|
|
{{if .Next}}
|
|
<a href="/entries?pageToken={{.Next}}">Next Page</a>
|
|
{{end}}
|
|
`))
|
|
|
|
func handleEntries(w http.ResponseWriter, r *http.Request) {
|
|
ctx := context.Background()
|
|
filter := fmt.Sprintf(`logName = "projects/%s/logs/testlog"`, *projectID)
|
|
it := client.Entries(ctx, logadmin.Filter(filter))
|
|
var entries []*logging.Entry
|
|
nextTok, err := iterator.NewPager(it, 5, r.URL.Query().Get("pageToken")).NextPage(&entries)
|
|
if err != nil {
|
|
http.Error(w, fmt.Sprintf("problem getting the next page: %v", err), http.StatusInternalServerError)
|
|
return
|
|
}
|
|
data := struct {
|
|
Entries []*logging.Entry
|
|
Next string
|
|
}{
|
|
entries,
|
|
nextTok,
|
|
}
|
|
var buf bytes.Buffer
|
|
if err := pageTemplate.Execute(&buf, data); err != nil {
|
|
http.Error(w, fmt.Sprintf("problem executing page template: %v", err), http.StatusInternalServerError)
|
|
}
|
|
if _, err := buf.WriteTo(w); err != nil {
|
|
log.Printf("writing response: %v", err)
|
|
}
|
|
}
|