37 lines
1.0 KiB
Go
37 lines
1.0 KiB
Go
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package beater
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import (
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"sync"
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"github.com/elastic/beats/libbeat/common"
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"github.com/elastic/beats/libbeat/publisher"
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)
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// PublishChannels publishes the events read from each channel to the given
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// publisher client. If the publisher client blocks for any reason then events
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// will not be read from the given channels.
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//
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// This method blocks until all of the channels have been closed
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// and are fully read. To stop the method immediately, close the channels and
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// close the publisher client to ensure that publishing does not block. This
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// may result is some events being discarded.
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func PublishChannels(client publisher.Client, cs ...<-chan common.MapStr) {
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var wg sync.WaitGroup
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// output publishes values from c until c is closed, then calls wg.Done.
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output := func(c <-chan common.MapStr) {
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defer wg.Done()
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for event := range c {
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client.PublishEvent(event)
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}
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}
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// Start an output goroutine for each input channel in cs.
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wg.Add(len(cs))
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for _, c := range cs {
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go output(c)
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}
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wg.Wait()
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}
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