001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache license, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the license for the specific language governing permissions and 015 * limitations under the license. 016 */ 017package org.apache.logging.log4j.util; 018 019import java.util.Map.Entry; 020 021/** 022 * <em>Consider this class private.</em> 023 */ 024public class StringBuilders { 025 026 /** 027 * Appends in the following format: double quoted value. 028 * 029 * @param sb 030 * a string builder 031 * @param value 032 * a value 033 * @return {@code "value"} 034 */ 035 public static StringBuilder appendDqValue(StringBuilder sb, Object value) { 036 return sb.append(Chars.DQUOTE).append(value).append(Chars.DQUOTE); 037 } 038 039 /** 040 * Appends in the following format: key=double quoted value. 041 * 042 * @param sb 043 * a string builder 044 * @param entry 045 * a map entry 046 * @return {@code key="value"} 047 */ 048 public static StringBuilder appendKeyDqValue(StringBuilder sb, Entry<String, String> entry) { 049 return appendKeyDqValue(sb, entry.getKey(), entry.getValue()); 050 } 051 052 /** 053 * Appends in the following format: key=double quoted value. 054 * 055 * @param sb 056 * a string builder 057 * @param key 058 * a key 059 * @param value 060 * a value 061 * @return {@code key="value"} 062 */ 063 public static StringBuilder appendKeyDqValue(StringBuilder sb, String key, Object value) { 064 return sb.append(key).append(Chars.EQ).append(Chars.DQUOTE).append(value).append(Chars.DQUOTE); 065 } 066 067}