github.com/galamsiva2020/kubernetes-heapster-monitoring@v0.0.0-20210823134957-3c1baa7c1e70/metrics/sinks/factory.go (about)

     1  // Copyright 2015 Google Inc. All Rights Reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package sinks
    16  
    17  import (
    18  	"fmt"
    19  	"time"
    20  
    21  	"github.com/golang/glog"
    22  	"k8s.io/heapster/common/flags"
    23  	"k8s.io/heapster/metrics/core"
    24  	"k8s.io/heapster/metrics/sinks/elasticsearch"
    25  	"k8s.io/heapster/metrics/sinks/gcm"
    26  	"k8s.io/heapster/metrics/sinks/graphite"
    27  	"k8s.io/heapster/metrics/sinks/hawkular"
    28  	"k8s.io/heapster/metrics/sinks/honeycomb"
    29  	"k8s.io/heapster/metrics/sinks/influxdb"
    30  	"k8s.io/heapster/metrics/sinks/kafka"
    31  	"k8s.io/heapster/metrics/sinks/librato"
    32  	logsink "k8s.io/heapster/metrics/sinks/log"
    33  	metricsink "k8s.io/heapster/metrics/sinks/metric"
    34  	"k8s.io/heapster/metrics/sinks/opentsdb"
    35  	"k8s.io/heapster/metrics/sinks/riemann"
    36  	"k8s.io/heapster/metrics/sinks/stackdriver"
    37  	"k8s.io/heapster/metrics/sinks/statsd"
    38  	"k8s.io/heapster/metrics/sinks/wavefront"
    39  )
    40  
    41  type SinkFactory struct {
    42  }
    43  
    44  func (this *SinkFactory) Build(uri flags.Uri) (core.DataSink, error) {
    45  	switch uri.Key {
    46  	case "elasticsearch":
    47  		return elasticsearch.NewElasticSearchSink(&uri.Val)
    48  	case "gcm":
    49  		return gcm.CreateGCMSink(&uri.Val)
    50  	case "stackdriver":
    51  		return stackdriver.CreateStackdriverSink(&uri.Val)
    52  	case "statsd":
    53  		return statsd.NewStatsdSink(&uri.Val)
    54  	case "graphite":
    55  		return graphite.NewGraphiteSink(&uri.Val)
    56  	case "hawkular":
    57  		return hawkular.NewHawkularSink(&uri.Val)
    58  	case "influxdb":
    59  		return influxdb.CreateInfluxdbSink(&uri.Val)
    60  	case "kafka":
    61  		return kafka.NewKafkaSink(&uri.Val)
    62  	case "librato":
    63  		return librato.CreateLibratoSink(&uri.Val)
    64  	case "log":
    65  		return logsink.NewLogSink(), nil
    66  	case "metric":
    67  		return metricsink.NewMetricSink(140*time.Second, 15*time.Minute, []string{
    68  			core.MetricCpuUsageRate.MetricDescriptor.Name,
    69  			core.MetricMemoryUsage.MetricDescriptor.Name}), nil
    70  	case "opentsdb":
    71  		return opentsdb.CreateOpenTSDBSink(&uri.Val)
    72  	case "wavefront":
    73  		return wavefront.NewWavefrontSink(&uri.Val)
    74  	case "riemann":
    75  		return riemann.CreateRiemannSink(&uri.Val)
    76  	case "honeycomb":
    77  		return honeycomb.NewHoneycombSink(&uri.Val)
    78  	default:
    79  		return nil, fmt.Errorf("Sink not recognized: %s", uri.Key)
    80  	}
    81  }
    82  
    83  func (this *SinkFactory) BuildAll(uris flags.Uris, historicalUri string, disableMetricSink bool) (*metricsink.MetricSink, []core.DataSink, core.HistoricalSource) {
    84  	result := make([]core.DataSink, 0, len(uris))
    85  	var metric *metricsink.MetricSink
    86  	var historical core.HistoricalSource
    87  	for _, uri := range uris {
    88  		sink, err := this.Build(uri)
    89  		if err != nil {
    90  			glog.Errorf("Failed to create %v sink: %v", uri, err)
    91  			continue
    92  		}
    93  		if uri.Key == "metric" {
    94  			metric = sink.(*metricsink.MetricSink)
    95  		}
    96  		if uri.String() == historicalUri {
    97  			if asHistSource, ok := sink.(core.AsHistoricalSource); ok {
    98  				historical = asHistSource.Historical()
    99  			} else {
   100  				glog.Errorf("Sink type %q does not support being used for historical access", uri.Key)
   101  			}
   102  		}
   103  		result = append(result, sink)
   104  	}
   105  
   106  	if len([]flags.Uri(uris)) != 0 && len(result) == 0 {
   107  		glog.Fatal("No available sink to use")
   108  	}
   109  
   110  	if metric == nil && !disableMetricSink {
   111  		uri := flags.Uri{}
   112  		uri.Set("metric")
   113  		sink, err := this.Build(uri)
   114  		if err == nil {
   115  			result = append(result, sink)
   116  			metric = sink.(*metricsink.MetricSink)
   117  		} else {
   118  			glog.Errorf("Error while creating metric sink: %v", err)
   119  		}
   120  	}
   121  	if len(historicalUri) > 0 && historical == nil {
   122  		glog.Errorf("Error while initializing historical access: unable to use sink %q as a historical source", historicalUri)
   123  	}
   124  	return metric, result, historical
   125  }
   126  
   127  func NewSinkFactory() *SinkFactory {
   128  	return &SinkFactory{}
   129  }