| /* |
| * 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.slider.server.servicemonitor; |
| |
| /** |
| * Build up log entries for ease of splunk |
| */ |
| public class LogEntryBuilder { |
| |
| private final StringBuilder builder = new StringBuilder(); |
| |
| public LogEntryBuilder() { |
| } |
| |
| public LogEntryBuilder(String text) { |
| elt(text); |
| } |
| |
| |
| public LogEntryBuilder(String name, Object value) { |
| entry(name, value); |
| } |
| |
| public LogEntryBuilder elt(String text) { |
| addComma(); |
| builder.append(text); |
| return this; |
| } |
| |
| public LogEntryBuilder elt(String name, Object value) { |
| addComma(); |
| entry(name, value); |
| return this; |
| } |
| |
| private void addComma() { |
| if (!isEmpty()) { |
| builder.append(", "); |
| } |
| } |
| |
| private void entry(String name, Object value) { |
| builder.append(name).append('='); |
| if (value != null) { |
| builder.append('"').append(value.toString()).append('"'); |
| } else { |
| builder.append("null"); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return builder.toString(); |
| } |
| |
| private boolean isEmpty() { |
| return builder.length() == 0; |
| } |
| |
| |
| } |