| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| package org.apache.cassandra.db.guardrails; |
| |
| import org.apache.cassandra.db.guardrails.GuardrailEvent.GuardrailEventType; |
| import org.apache.cassandra.diag.DiagnosticEventService; |
| |
| /** |
| * Utility methods for {@link GuardrailEvent} activities. |
| */ |
| final class GuardrailsDiagnostics |
| { |
| private static final DiagnosticEventService service = DiagnosticEventService.instance(); |
| |
| private GuardrailsDiagnostics() |
| { |
| } |
| |
| /** |
| * Creates a new diagnostic event for the activation of the soft/warn limit of a guardrail. |
| * |
| * @param name The name that identifies the activated guardrail. |
| * @param message The warning message emitted by the activated guardrail. |
| */ |
| static void warned(String name, String message) |
| { |
| if (isEnabled(GuardrailEventType.WARNED)) |
| service.publish(new GuardrailEvent(GuardrailEventType.WARNED, name, message)); |
| } |
| |
| /** |
| * Creates a new diagnostic event for the activation of the hard/fail limit of a guardrail. |
| * |
| * @param name The name that identifies the activated guardrail. |
| * @param message The failure message emitted by the activated guardrail. |
| */ |
| static void failed(String name, String message) |
| { |
| if (isEnabled(GuardrailEventType.FAILED)) |
| service.publish(new GuardrailEvent(GuardrailEventType.FAILED, name, message)); |
| } |
| |
| private static boolean isEnabled(GuardrailEventType type) |
| { |
| return service.isEnabled(GuardrailEvent.class, type); |
| } |
| } |