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 18 package org.apache.log4j.pattern; 19 20 21 /** 22 * 23 * Base class for other pattern converters which can return only parts of their name. 24 * 25 * @author Ceki Gülcü 26 * @author Curt Arnold 27 * 28 */ 29 public abstract class NamePatternConverter 30 extends LoggingEventPatternConverter { 31 /** 32 * Abbreviator. 33 */ 34 private final NameAbbreviator abbreviator; 35 36 /** 37 * Constructor. 38 * @param name name of converter. 39 * @param style style name for associated output. 40 * @param options options, may be null, first element will be interpreted as an abbreviation pattern. 41 */ 42 protected NamePatternConverter( 43 final String name, final String style, final String[] options) { 44 super(name, style); 45 46 if ((options != null) && (options.length > 0)) { 47 abbreviator = NameAbbreviator.getAbbreviator(options[0]); 48 } else { 49 abbreviator = NameAbbreviator.getDefaultAbbreviator(); 50 } 51 } 52 53 /** 54 * Abbreviate name in string buffer. 55 * @param nameStart starting position of name to abbreviate. 56 * @param buf string buffer containing name. 57 */ 58 protected final void abbreviate(final int nameStart, final StringBuffer buf) { 59 abbreviator.abbreviate(nameStart, buf); 60 } 61 }