| 1 | /** |
| 2 | * Licensed to jclouds, Inc. (jclouds) under one or more |
| 3 | * contributor license agreements. See the NOTICE file |
| 4 | * distributed with this work for additional information |
| 5 | * regarding copyright ownership. jclouds licenses this file |
| 6 | * to you under the Apache License, Version 2.0 (the |
| 7 | * "License"); you may not use this file except in compliance |
| 8 | * with the License. You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, |
| 13 | * software distributed under the License is distributed on an |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 15 | * KIND, either express or implied. See the License for the |
| 16 | * specific language governing permissions and limitations |
| 17 | * under the License. |
| 18 | */ |
| 19 | package org.jclouds.logging; |
| 20 | |
| 21 | /** |
| 22 | * Base implementation that constructs formatted log strings. |
| 23 | * |
| 24 | * @author Adrian Cole |
| 25 | * |
| 26 | */ |
| 27 | public abstract class BaseLogger implements Logger { |
| 28 | |
| 29 | protected abstract void logError(String message, Throwable e); |
| 30 | |
| 31 | protected abstract void logError(String message); |
| 32 | |
| 33 | protected abstract void logWarn(String message, Throwable e); |
| 34 | |
| 35 | protected abstract void logWarn(String message); |
| 36 | |
| 37 | protected abstract void logInfo(String message); |
| 38 | |
| 39 | protected abstract void logDebug(String message); |
| 40 | |
| 41 | protected abstract void logTrace(String message); |
| 42 | |
| 43 | public void trace(String message, Object... args) { |
| 44 | if (isTraceEnabled()) |
| 45 | logTrace(formatIfArgs(message, args)); |
| 46 | } |
| 47 | |
| 48 | private String formatIfArgs(String message, Object... args) { |
| 49 | return args.length == 0 ? message : String.format(message, args); |
| 50 | } |
| 51 | |
| 52 | public void debug(String message, Object... args) { |
| 53 | if (isDebugEnabled()) |
| 54 | logDebug(formatIfArgs(message, args)); |
| 55 | } |
| 56 | |
| 57 | public void info(String message, Object... args) { |
| 58 | if (isInfoEnabled()) |
| 59 | logInfo(formatIfArgs(message, args)); |
| 60 | } |
| 61 | |
| 62 | public void warn(String message, Object... args) { |
| 63 | if (isWarnEnabled()) |
| 64 | logWarn(formatIfArgs(message, args)); |
| 65 | } |
| 66 | |
| 67 | public void warn(Throwable e, String message, Object... args) { |
| 68 | if (isWarnEnabled()) |
| 69 | logWarn(formatIfArgs(message, args), e); |
| 70 | } |
| 71 | |
| 72 | public void error(String message, Object... args) { |
| 73 | if (isErrorEnabled()) |
| 74 | logError(formatIfArgs(message, args)); |
| 75 | } |
| 76 | |
| 77 | public void error(Throwable e, String message, Object... args) { |
| 78 | if (isErrorEnabled()) |
| 79 | logError(formatIfArgs(message, args), e); |
| 80 | } |
| 81 | |
| 82 | } |