| /* |
| * Licensed 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.aries.subsystem.core.archive; |
| |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| public class ParameterFactory { |
| public static final String QUOTED_STRING = "\"((?:[^\"\r\n\u0000]|\\\\\"|\\\\\\\\)*)\""; |
| public static final String ARGUMENT = '(' + Grammar.EXTENDED + ")|" + QUOTED_STRING; |
| private static final String REGEX = '(' + Grammar.EXTENDED + ")(\\:?=)(?:" + ARGUMENT + ')'; |
| private static final Pattern PATTERN = Pattern.compile(REGEX); |
| |
| public static Parameter create(String parameter) { |
| Matcher matcher = PATTERN.matcher(parameter); |
| if (!matcher.matches()) { |
| throw new IllegalArgumentException("Invalid parameter: " + parameter); |
| } |
| String name = matcher.group(1); |
| String symbol = matcher.group(2); |
| String value = matcher.group(3); |
| if (value == null) |
| value = matcher.group(4); |
| if (symbol.equals("=")) { |
| return AttributeFactory.createAttribute(name, value); |
| } |
| return DirectiveFactory.createDirective(name, value); |
| } |
| } |