org.apache.commons.text.lookup.AbstractStringLookup Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache license, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the license for the specific language governing permissions and
* limitations under the license.
*/
package org.apache.commons.text.lookup;
/**
* A default lookup for others to extend in this package.
*
* @since 1.3
*/
abstract class AbstractStringLookup implements StringLookup {
/**
* The empty string.
*/
private static final String EMPTY = "";
/**
* The default split char.
*/
protected static final char SPLIT_CH = ':';
/**
* The default split string.
*/
protected static final String SPLIT_STR = String.valueOf(SPLIT_CH);
/**
* Returns the substring after the first occurrence of ch in value.
*
* @param value
* The source string.
* @param ch
* The character to search.
* @return a new string.
*/
protected String substringAfter(final String value, final char ch) {
final int indexOf = value.indexOf(ch);
return indexOf > -1 ? value.substring(indexOf + 1) : EMPTY;
}
/**
* Returns the substring after the first occurrence of ch in value.
*
* @param value
* The source string.
* @param ch
* The character to search.
* @return a new string.
*/
protected String substringAfterLast(final String value, final char ch) {
final int indexOf = value.lastIndexOf(ch);
return indexOf > -1 ? value.substring(indexOf + 1) : EMPTY;
}
/**
* Returns the substring after the first occurrence of str in value.
*
* @param value
* The source string.
* @param str
* The string to search.
* @return a new string.
*/
protected String substringAfter(final String value, final String str) {
final int indexOf = value.indexOf(str);
return indexOf > -1 ? value.substring(indexOf + str.length()) : EMPTY;
}
}