1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache license, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the license for the specific language governing permissions and 15 * limitations under the license. 16 */ 17 package org.apache.logging.log4j.util; 18 19 import java.util.Map.Entry; 20 21 /** 22 * <em>Consider this class private.</em> 23 */ 24 public final class StringBuilders { 25 private StringBuilders() { 26 } 27 28 /** 29 * Appends in the following format: double quoted value. 30 * 31 * @param sb a string builder 32 * @param value a value 33 * @return {@code "value"} 34 */ 35 public static StringBuilder appendDqValue(final StringBuilder sb, final Object value) { 36 return sb.append(Chars.DQUOTE).append(value).append(Chars.DQUOTE); 37 } 38 39 /** 40 * Appends in the following format: key=double quoted value. 41 * 42 * @param sb a string builder 43 * @param entry a map entry 44 * @return {@code key="value"} 45 */ 46 public static StringBuilder appendKeyDqValue(final StringBuilder sb, final Entry<String, String> entry) { 47 return appendKeyDqValue(sb, entry.getKey(), entry.getValue()); 48 } 49 50 /** 51 * Appends in the following format: key=double quoted value. 52 * 53 * @param sb a string builder 54 * @param key a key 55 * @param value a value 56 * @return the specified StringBuilder 57 */ 58 public static StringBuilder appendKeyDqValue(final StringBuilder sb, final String key, final Object value) { 59 return sb.append(key).append(Chars.EQ).append(Chars.DQUOTE).append(value).append(Chars.DQUOTE); 60 } 61 62 }