89 lines
2.2 KiB
Go
89 lines
2.2 KiB
Go
// Copyright 2014 Google Inc. All Rights Reserved.
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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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// Handler for /api/
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package api
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import (
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"encoding/json"
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"fmt"
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"log"
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"net/http"
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"net/url"
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"strings"
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"time"
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"github.com/google/cadvisor/manager"
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)
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const (
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ApiResource = "/api/v1.0/"
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ContainersApi = "containers"
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MachineApi = "machine"
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)
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func HandleRequest(m manager.Manager, w http.ResponseWriter, u *url.URL) error {
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start := time.Now()
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// Get API request type.
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requestType := u.Path[len(ApiResource):]
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i := strings.Index(requestType, "/")
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requestArgs := ""
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if i != -1 {
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requestArgs = requestType[i:]
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requestType = requestType[:i]
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}
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if requestType == MachineApi {
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log.Printf("Api - Machine")
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// Get the MachineInfo
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machineInfo, err := m.GetMachineInfo()
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if err != nil {
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return err
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}
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out, err := json.Marshal(machineInfo)
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if err != nil {
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fmt.Fprintf(w, "Failed to marshall MachineInfo with error: %s", err)
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}
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w.Write(out)
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} else if requestType == ContainersApi {
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// The container name is the path after the requestType
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containerName := requestArgs
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log.Printf("Api - Container(%s)", containerName)
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// Get the container.
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cont, err := m.GetContainerInfo(containerName)
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if err != nil {
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fmt.Fprintf(w, "Failed to get container \"%s\" with error: %s", containerName, err)
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return err
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}
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// Only output the container as JSON.
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out, err := json.Marshal(cont)
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if err != nil {
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fmt.Fprintf(w, "Failed to marshall container %q with error: %s", containerName, err)
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}
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w.Write(out)
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} else {
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return fmt.Errorf("unknown API request type %q", requestType)
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}
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log.Printf("Request took %s", time.Since(start))
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return nil
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}
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