Enable setting log level from command line

Change-Id: I8397e0134d254cd5b6be79ed2b847ce265fc775c
Signed-off-by: Izabela Zawadzka <izabela.zawadzka@nokia.com>
Issue-ID: DCAEGEN2-1045

3 files changed, 132 insertions, 58 deletions

diff --git a/sources/hv-collector-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/utils/commandline/CommandLineOption.kt b/sources/hv-collector-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/utils/commandline/CommandLineOption.kt
index 9439bff5..e869901d 100644
--- a/sources/hv-collector-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/utils/commandline/CommandLineOption.kt
+++ b/sources/hv-collector-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/utils/commandline/CommandLineOption.kt
@@ -23,118 +23,144 @@ import org.apache.commons.cli.Option
 
 
 enum class CommandLineOption(val option: Option, val required: Boolean = false) {
-    HEALTH_CHECK_API_PORT(Option.builder("H")
+    HEALTH_CHECK_API_PORT(
+        Option.builder("H")
             .longOpt("health-check-api-port")
             .hasArg()
             .desc("Health check rest api listen port")
             .build()
     ),
-    LISTEN_PORT(Option.builder("p")
+    LISTEN_PORT(
+        Option.builder("p")
             .longOpt("listen-port")
             .hasArg()
             .desc("Listen port")
             .build(),
-            required = true
+        required = true
     ),
-    CONSUL_CONFIG_URL(Option.builder("c")
+    CONSUL_CONFIG_URL(
+        Option.builder("c")
             .longOpt("config-url")
             .hasArg()
             .desc("URL of ves configuration on consul")
             .build(),
-            required = true
+        required = true
     ),
-    CONSUL_FIRST_REQUEST_DELAY(Option.builder("d")
+    CONSUL_FIRST_REQUEST_DELAY(
+        Option.builder("d")
             .longOpt("first-request-delay")
             .hasArg()
             .desc("Delay of first request to consul in seconds")
             .build()
     ),
-    CONSUL_REQUEST_INTERVAL(Option.builder("I")
+    CONSUL_REQUEST_INTERVAL(
+        Option.builder("I")
             .longOpt("request-interval")
             .hasArg()
             .desc("Interval of consul configuration requests in seconds")
             .build()
     ),
-    VES_HV_PORT(Option.builder("v")
+    VES_HV_PORT(
+        Option.builder("v")
             .longOpt("ves-port")
             .hasArg()
             .desc("VesHvCollector port")
             .build(),
-            required = true
+        required = true
     ),
-    VES_HV_HOST(Option.builder("h")
+    VES_HV_HOST(
+        Option.builder("h")
             .longOpt("ves-host")
             .hasArg()
             .desc("VesHvCollector host")
             .build(),
-            required = true
+        required = true
     ),
-    KAFKA_SERVERS(Option.builder("s")
+    KAFKA_SERVERS(
+        Option.builder("s")
             .longOpt("kafka-bootstrap-servers")
             .hasArg()
             .desc("Comma-separated Kafka bootstrap servers in <host>:<port> format")
             .build(),
-            required = true
+        required = true
     ),
-    KAFKA_TOPICS(Option.builder("f")
+    KAFKA_TOPICS(
+        Option.builder("f")
             .longOpt("kafka-topics")
             .hasArg()
             .desc("Comma-separated Kafka topics")
             .build(),
-            required = true
+        required = true
     ),
-    SSL_DISABLE(Option.builder("l")
+    SSL_DISABLE(
+        Option.builder("l")
             .longOpt("ssl-disable")
             .desc("Disable SSL encryption")
             .build()
     ),
-    KEY_STORE_FILE(Option.builder("k")
+    KEY_STORE_FILE(
+        Option.builder("k")
             .longOpt("key-store")
             .hasArg()
             .desc("Key store in PKCS12 format")
             .build()
     ),
-    KEY_STORE_PASSWORD(Option.builder("kp")
+    KEY_STORE_PASSWORD(
+        Option.builder("kp")
             .longOpt("key-store-password")
             .hasArg()
             .desc("Key store password")
             .build()
     ),
-    TRUST_STORE_FILE(Option.builder("t")
+    TRUST_STORE_FILE(
+        Option.builder("t")
             .longOpt("trust-store")
             .hasArg()
             .desc("File with trusted certificate bundle in PKCS12 format")
             .build()
     ),
-    TRUST_STORE_PASSWORD(Option.builder("tp")
+    TRUST_STORE_PASSWORD(
+        Option.builder("tp")
             .longOpt("trust-store-password")
             .hasArg()
             .desc("Trust store password")
             .build()
     ),
-    IDLE_TIMEOUT_SEC(Option.builder("i")
+    IDLE_TIMEOUT_SEC(
+        Option.builder("i")
             .longOpt("idle-timeout-sec")
             .hasArg()
-            .desc("""Idle timeout for remote hosts. After given time without any data exchange the
-                |connection might be closed.""".trimMargin())
+            .desc(
+                """Idle timeout for remote hosts. After given time without any data exchange the
+                |connection might be closed.""".trimMargin()
+            )
             .build()
     ),
-    MAXIMUM_PAYLOAD_SIZE_BYTES(Option.builder("m")
+    MAXIMUM_PAYLOAD_SIZE_BYTES(
+        Option.builder("m")
             .longOpt("max-payload-size")
             .hasArg()
             .desc("Maximum supported payload size in bytes")
             .build()
     ),
-    DUMMY_MODE(Option.builder("u")
+    LOG_LEVEL(
+        Option.builder("ll")
+            .longOpt("log-level")
+            .hasArg()
+            .desc("Log level")
+            .build()
+    ),
+    DUMMY_MODE(
+        Option.builder("u")
             .longOpt("dummy")
             .desc("If present will start in dummy mode (dummy external services)")
             .build()
     );
 
     fun environmentVariableName(prefix: String = DEFAULT_ENV_PREFIX): String =
-            option.longOpt.toUpperCase().replace('-', '_').let { mainPart ->
-                "${prefix}_${mainPart}"
-            }
+        option.longOpt.toUpperCase().replace('-', '_').let { mainPart ->
+            "${prefix}_${mainPart}"
+        }
 
     companion object {
         private const val DEFAULT_ENV_PREFIX = "VESHV"
diff --git a/sources/hv-collector-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/utils/logging/LogLevel.kt b/sources/hv-collector-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/utils/logging/LogLevel.kt
new file mode 100644
index 00000000..ec782bf7
--- /dev/null
+++ b/sources/hv-collector-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/utils/logging/LogLevel.kt
@@ -0,0 +1,41 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.dcae.collectors.veshv.utils.logging
+
+import arrow.core.Try
+import ch.qos.logback.classic.Level
+
+enum class LogLevel(private val logbackLevel: Level) {
+    ERROR(Level.ERROR),
+    WARN(Level.WARN),
+    INFO(Level.INFO),
+    DEBUG(Level.DEBUG),
+    TRACE(Level.TRACE);
+
+    operator fun invoke() = logbackLevel
+
+    companion object {
+        fun optionFromString(level: String) = Try {
+            valueOf(level.toUpperCase())
+        }.toOption()
+    }
+
+
+}
diff --git a/sources/hv-collector-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/utils/logging/Logger.kt b/sources/hv-collector-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/utils/logging/Logger.kt
index 938ba793..82ce50a9 100644
--- a/sources/hv-collector-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/utils/logging/Logger.kt
+++ b/sources/hv-collector-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/utils/logging/Logger.kt
@@ -19,6 +19,7 @@
  */
 package org.onap.dcae.collectors.veshv.utils.logging
 
+import ch.qos.logback.classic.LoggerContext
 import kotlin.reflect.KClass
 import org.slf4j.LoggerFactory
 import org.slf4j.MDC
@@ -41,86 +42,92 @@ class Logger(logger: org.slf4j.Logger) {
     fun withError(block: AtLevelLogger.() -> Unit) = errorLogger.block()
 
     fun withError(mdc: MappedDiagnosticContext, block: AtLevelLogger.() -> Unit) =
-            errorLogger.withMdc(mdc, block)
+        errorLogger.withMdc(mdc, block)
 
     fun error(message: () -> String) = errorLogger.run {
         log(message())
     }
 
     fun error(mdc: MappedDiagnosticContext, message: () -> String) =
-            errorLogger.withMdc(mdc) { log(message()) }
+        errorLogger.withMdc(mdc) { log(message()) }
 
     fun error(mdc: MappedDiagnosticContext, marker: Marker, message: () -> String) =
-            errorLogger.withMdc(mdc) { log(marker, message()) }
+        errorLogger.withMdc(mdc) { log(marker, message()) }
 
     // WARN
 
     fun withWarn(block: AtLevelLogger.() -> Unit) = warnLogger.block()
 
     fun withWarn(mdc: MappedDiagnosticContext, block: AtLevelLogger.() -> Unit) =
-            warnLogger.withMdc(mdc, block)
+        warnLogger.withMdc(mdc, block)
 
     fun warn(message: () -> String) = warnLogger.run {
         log(message())
     }
 
     fun warn(mdc: MappedDiagnosticContext, message: () -> String) =
-            warnLogger.withMdc(mdc) { log(message()) }
+        warnLogger.withMdc(mdc) { log(message()) }
 
     fun warn(mdc: MappedDiagnosticContext, marker: Marker, message: () -> String) =
-            warnLogger.withMdc(mdc) { log(marker, message()) }
+        warnLogger.withMdc(mdc) { log(marker, message()) }
 
     // INFO
 
     fun withInfo(block: AtLevelLogger.() -> Unit) = infoLogger.block()
 
     fun withInfo(mdc: MappedDiagnosticContext, block: AtLevelLogger.() -> Unit) =
-            infoLogger.withMdc(mdc, block)
+        infoLogger.withMdc(mdc, block)
 
     fun info(message: () -> String) = infoLogger.run {
         log(message())
     }
 
     fun info(mdc: MappedDiagnosticContext, message: () -> String) =
-            infoLogger.withMdc(mdc) { log(message()) }
+        infoLogger.withMdc(mdc) { log(message()) }
 
     fun info(mdc: MappedDiagnosticContext, marker: Marker, message: () -> String) =
-            infoLogger.withMdc(mdc) { log(marker, message()) }
+        infoLogger.withMdc(mdc) { log(marker, message()) }
 
     // DEBUG
 
     fun withDebug(block: AtLevelLogger.() -> Unit) = debugLogger.block()
 
     fun withDebug(mdc: MappedDiagnosticContext, block: AtLevelLogger.() -> Unit) =
-            debugLogger.withMdc(mdc, block)
+        debugLogger.withMdc(mdc, block)
 
     fun debug(message: () -> String) = debugLogger.run {
         log(message())
     }
 
     fun debug(mdc: MappedDiagnosticContext, message: () -> String) =
-            debugLogger.withMdc(mdc) { log(message()) }
+        debugLogger.withMdc(mdc) { log(message()) }
 
     fun debug(mdc: MappedDiagnosticContext, marker: Marker, message: () -> String) =
-            debugLogger.withMdc(mdc) { log(marker, message()) }
+        debugLogger.withMdc(mdc) { log(marker, message()) }
 
     // TRACE
 
     fun withTrace(block: AtLevelLogger.() -> Unit) = traceLogger.block()
 
     fun withTrace(mdc: MappedDiagnosticContext, block: AtLevelLogger.() -> Unit) =
-            traceLogger.withMdc(mdc, block)
+        traceLogger.withMdc(mdc, block)
 
     fun trace(message: () -> String) = traceLogger.run {
         log(message())
     }
 
     fun trace(mdc: MappedDiagnosticContext, message: () -> String) =
-            traceLogger.withMdc(mdc) { log(message()) }
+        traceLogger.withMdc(mdc) { log(message()) }
 
     fun trace(mdc: MappedDiagnosticContext, marker: Marker, message: () -> String) =
-            traceLogger.withMdc(mdc) { log(marker, message()) }
+        traceLogger.withMdc(mdc) { log(marker, message()) }
 
+    companion object {
+        fun setLogLevel(packageName: String, level: LogLevel) {
+            val loggerContext = LoggerFactory.getILoggerFactory() as LoggerContext
+            loggerContext.getLogger(packageName).level = level()
+        }
+    }
 }
 
 abstract class AtLevelLogger {
@@ -183,9 +190,9 @@ class ErrorLevelLogger(private val logger: org.slf4j.Logger) : AtLevelLogger() {
     }
 
     override fun log(marker: Marker, message: String) =
-            withAdditionalMdc(marker.mdc) {
-                logger.error(marker.slf4jMarker, message)
-            }
+        withAdditionalMdc(marker.mdc) {
+            logger.error(marker.slf4jMarker, message)
+        }
 }
 
 @Suppress("SuboptimalLoggerUsage")
@@ -199,9 +206,9 @@ class WarnLevelLogger(private val logger: org.slf4j.Logger) : AtLevelLogger() {
     }
 
     override fun log(marker: Marker, message: String) =
-            withAdditionalMdc(marker.mdc) {
-                logger.warn(marker.slf4jMarker, message)
-            }
+        withAdditionalMdc(marker.mdc) {
+            logger.warn(marker.slf4jMarker, message)
+        }
 }
 
 @Suppress("SuboptimalLoggerUsage")
@@ -215,9 +222,9 @@ class InfoLevelLogger(private val logger: org.slf4j.Logger) : AtLevelLogger() {
     }
 
     override fun log(marker: Marker, message: String) =
-            withAdditionalMdc(marker.mdc) {
-                logger.info(marker.slf4jMarker, message)
-            }
+        withAdditionalMdc(marker.mdc) {
+            logger.info(marker.slf4jMarker, message)
+        }
 }
 
 @Suppress("SuboptimalLoggerUsage")
@@ -231,9 +238,9 @@ class DebugLevelLogger(private val logger: org.slf4j.Logger) : AtLevelLogger() {
     }
 
     override fun log(marker: Marker, message: String) =
-            withAdditionalMdc(marker.mdc) {
-                logger.debug(marker.slf4jMarker, message)
-            }
+        withAdditionalMdc(marker.mdc) {
+            logger.debug(marker.slf4jMarker, message)
+        }
 }
 
 @Suppress("SuboptimalLoggerUsage")
@@ -247,7 +254,7 @@ class TraceLevelLogger(private val logger: org.slf4j.Logger) : AtLevelLogger() {
     }
 
     override fun log(marker: Marker, message: String) =
-            withAdditionalMdc(marker.mdc) {
-                logger.trace(marker.slf4jMarker, message)
-            }
+        withAdditionalMdc(marker.mdc) {
+            logger.trace(marker.slf4jMarker, message)
+        }
 }