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 final class StringBuilders { 025 private StringBuilders() { 026 } 027 028 /** 029 * Appends in the following format: double quoted value. 030 * 031 * @param sb a string builder 032 * @param value a value 033 * @return {@code "value"} 034 */ 035 public static StringBuilder appendDqValue(final StringBuilder sb, final 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 a string builder 043 * @param entry a map entry 044 * @return {@code key="value"} 045 */ 046 public static StringBuilder appendKeyDqValue(final StringBuilder sb, final Entry<String, String> entry) { 047 return appendKeyDqValue(sb, entry.getKey(), entry.getValue()); 048 } 049 050 /** 051 * Appends in the following format: key=double quoted value. 052 * 053 * @param sb a string builder 054 * @param key a key 055 * @param value a value 056 * @return the specified StringBuilder 057 */ 058 public static StringBuilder appendKeyDqValue(final StringBuilder sb, final String key, final Object value) { 059 return sb.append(key).append(Chars.EQ).append(Chars.DQUOTE).append(value).append(Chars.DQUOTE); 060 } 061 062}