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Cleanup (potential AIOOBE; doc comment; formatting)

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This commit is contained in:
Roman Shevchenko
2019-01-28 13:36:15 +01:00
parent 0d149f7345
commit 7d735c871e
1 changed files with 14 additions and 27 deletions
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platform/platform-api/src/com/intellij/internal/statistic/eventLog/FeatureUsageEventLogger.kt
+14 -27
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@@ -1,67 +1,54 @@
// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
// Copyright 2000-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
package com.intellij.internal.statistic.eventLog
import com.intellij.openapi.diagnostic.Logger
import com.intellij.openapi.extensions.ExtensionPointName
import com.intellij.openapi.extensions.Extensions
import java.io.File
import java.util.*
private val LOG = Logger.getInstance("#com.intellij.internal.statistic.eventLog.FeatureUsageEventLogger")
private val EP_NAME = ExtensionPointName.create<FeatureUsageEventLoggerProvider>("com.intellij.statistic.eventLog.fusEventLoggerProvider")
interface FeatureUsageEventLogger {
fun log(group: FeatureUsageGroup, action: String, isState: Boolean)
fun log(group: FeatureUsageGroup, action: String, data: Map<String, Any>, isState: Boolean)
fun getLogFiles(): List<File>
}
interface FeatureUsageEventLoggerProvider {
fun isEnabled() : Boolean
fun createLogger() : FeatureUsageEventLogger
}
class FeatureUsageEmptyEventLoggerProvider : FeatureUsageEventLoggerProvider {
override fun isEnabled() : Boolean {
return false
}
override fun createLogger() : FeatureUsageEventLogger {
return FeatureUsageEmptyEventLogger()
}
override fun isEnabled() : Boolean = false
override fun createLogger() : FeatureUsageEventLogger = FeatureUsageEmptyEventLogger()
}
class FeatureUsageEmptyEventLogger : FeatureUsageEventLogger {
override fun log(group: FeatureUsageGroup, action: String, isState: Boolean) {
}
override fun log(group: FeatureUsageGroup, action: String, data: Map<String, Any>, isState: Boolean) {
}
override fun getLogFiles(): List<File> {
return emptyList()
}
override fun log(group: FeatureUsageGroup, action: String, isState: Boolean) = Unit
override fun log(group: FeatureUsageGroup, action: String, data: Map<String, Any>, isState: Boolean) = Unit
override fun getLogFiles(): List<File> = emptyList()
}
fun getLoggerProvider(): FeatureUsageEventLoggerProvider {
if (Extensions.getRootArea().hasExtensionPoint(EP_NAME.name)) {
val extensions = EP_NAME.extensions
val extensions = EP_NAME.extensionList
if (extensions.isEmpty()) {
LOG.warn("Cannot find feature usage event logger")
return FeatureUsageEmptyEventLoggerProvider()
}
else if (extensions.size > 1) {
LOG.warn("Too many feature usage loggers registered (" + Arrays.asList<FeatureUsageEventLoggerProvider>(*extensions) + ")")
LOG.warn("Too many feature usage loggers registered (${extensions})")
}
return extensions[0]
}
return FeatureUsageEmptyEventLoggerProvider()
}
/**
* Best practices:
* - Prefer a bigger group with many (related) event types to many small groups of 1-2 events each.
* - Prefer shorter group names; avoid common prefixes (such as "statistics.").
*/
class FeatureUsageGroup(val id: String, val version: Int)