| /* |
| * 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.openejb.util; |
| |
| import java.util.Map; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| public class StringTemplate { |
| |
| public static final Pattern PATTERN = Pattern.compile("(\\{)((\\.|\\w)+)(})"); |
| private final String template; |
| |
| public StringTemplate(String template) { |
| this.template = template; |
| } |
| |
| public String apply(Map<String, String> map) { |
| Matcher matcher = PATTERN.matcher(template); |
| StringBuffer buf = new StringBuffer(); |
| |
| while (matcher.find()) { |
| String key = matcher.group(2); |
| |
| if (key == null) throw new IllegalStateException("Key is null. Template '" + template + "'"); |
| |
| String value = map.get(key); |
| |
| if (key.toLowerCase().endsWith(".lc")) { |
| value = map.get(key.substring(0, key.length() - 3)).toLowerCase(); |
| } else if (key.toLowerCase().endsWith(".uc")) { |
| value = map.get(key.substring(0, key.length() - 3)).toUpperCase(); |
| } else if (key.toLowerCase().endsWith(".cc")) { |
| value = Strings.camelCase(map.get(key.substring(0, key.length() - 3))); |
| } |
| |
| if (value == null) throw new IllegalStateException("Value is null for key '" + key + "'. Template '" + template + "'. Keys: " + Join.join(", ", map.keySet())); |
| matcher.appendReplacement(buf, value); |
| } |
| |
| matcher.appendTail(buf); |
| return buf.toString(); |
| } |
| |
| } |