| /* |
| * 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.maven.model.interpolation; |
| |
| import java.util.List; |
| |
| import org.apache.maven.model.building.ModelProblem.Severity; |
| import org.apache.maven.model.building.ModelProblem.Version; |
| import org.apache.maven.model.building.ModelProblemCollector; |
| import org.apache.maven.model.building.ModelProblemCollectorRequest; |
| import org.codehaus.plexus.interpolation.ValueSource; |
| |
| /** |
| * Wraps another value source and intercepts interpolated expressions, checking for problems. |
| * |
| * @author Benjamin Bentmann |
| */ |
| class ProblemDetectingValueSource implements ValueSource { |
| |
| private final ValueSource valueSource; |
| |
| private final String bannedPrefix; |
| |
| private final String newPrefix; |
| |
| private final ModelProblemCollector problems; |
| |
| ProblemDetectingValueSource( |
| ValueSource valueSource, String bannedPrefix, String newPrefix, ModelProblemCollector problems) { |
| this.valueSource = valueSource; |
| this.bannedPrefix = bannedPrefix; |
| this.newPrefix = newPrefix; |
| this.problems = problems; |
| } |
| |
| @Override |
| public Object getValue(String expression) { |
| Object value = valueSource.getValue(expression); |
| |
| if (value != null && expression.startsWith(bannedPrefix)) { |
| String msg = "The expression ${" + expression + "} is deprecated."; |
| if (newPrefix != null && newPrefix.length() > 0) { |
| msg += " Please use ${" + newPrefix + expression.substring(bannedPrefix.length()) + "} instead."; |
| } |
| problems.add(new ModelProblemCollectorRequest(Severity.WARNING, Version.V20).setMessage(msg)); |
| } |
| |
| return value; |
| } |
| |
| @Override |
| public List getFeedback() { |
| return valueSource.getFeedback(); |
| } |
| |
| @Override |
| public void clearFeedback() { |
| valueSource.clearFeedback(); |
| } |
| } |