| /* |
| * 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 |
| * |
| * https://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.ivy.plugins.matcher; |
| |
| /** |
| * Implementation of an exact matcher. |
| * <p> |
| * The matching will be performed against an expression being a string. It will only matches if both |
| * strings are equal (per equals()) rule or if both strings are null. |
| * </p> |
| */ |
| public/* @Immutable */final class ExactPatternMatcher extends AbstractPatternMatcher { |
| |
| public static final ExactPatternMatcher INSTANCE = new ExactPatternMatcher(); |
| |
| public ExactPatternMatcher() { |
| super(EXACT); |
| } |
| |
| @Override |
| protected Matcher newMatcher(String expression) { |
| return new ExactMatcher(expression); |
| } |
| |
| private static/* @Immutable */class ExactMatcher implements Matcher { |
| private String expression; |
| |
| public ExactMatcher(String expression) { |
| this.expression = expression; |
| } |
| |
| public boolean matches(String input) { |
| if (input == null) { |
| throw new NullPointerException(); |
| } |
| return input.equals(expression); |
| } |
| |
| public boolean isExact() { |
| return true; |
| } |
| } |
| } |