| package org.apache.maven.shared.mapping; |
| |
| /* |
| * 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. |
| */ |
| |
| import org.apache.maven.artifact.Artifact; |
| import org.codehaus.plexus.interpolation.InterpolationException; |
| import org.codehaus.plexus.interpolation.ObjectBasedValueSource; |
| import org.codehaus.plexus.interpolation.RegexBasedInterpolator; |
| |
| /** |
| * <p> |
| * Utilities used to evaluate an expression. |
| * </p> |
| * <p> |
| * The expression might use any field of the {@link Artifact} interface. Some examples might be: |
| * </p> |
| * <ul> |
| * <li>@{artifactId}@-@{version}@@{dashClassifier?}@.@{extension}@</li> |
| * <li>@{artifactId}@-@{version}@.@{extension}@</li> |
| * <li>@{artifactId}@.@{extension}@</li> |
| * </ul> |
| * <p> |
| * Although parts of this code comes from the Assembly Plugin, it cannot be shared with the Assembly Plugin. The reason |
| * for this is that the Assembly Plugin always uses a prefix for the expressions, whereas this code does not. |
| * <p/> |
| * |
| * @author Stephane Nicoll |
| * @author Dennis Lundberg |
| * @version $Id$ |
| */ |
| public class MappingUtils |
| { |
| /** |
| * Default file name mapping. |
| */ |
| public static final String DEFAULT_FILE_NAME_MAPPING = "@{artifactId}@-@{baseVersion}@.@{extension}@"; |
| |
| /** |
| * Default file name mapping incl. classifier. |
| */ |
| public static final String DEFAULT_FILE_NAME_MAPPING_CLASSIFIER = |
| "@{artifactId}@-@{baseVersion}@-@{classifier}@.@{extension}@"; |
| |
| /** |
| * Evaluates the specified expression for the given artifact. |
| * |
| * @param expression the expression to evaluate |
| * @param artifact the artifact to use as value object for tokens |
| * @throws InterpolationException In case of an error. |
| * @return expression the evaluated expression |
| */ |
| public static String evaluateFileNameMapping( String expression, Artifact artifact ) |
| throws InterpolationException |
| { |
| String value = expression; |
| |
| RegexBasedInterpolator interpolator = new RegexBasedInterpolator( "\\@\\{(", ")?([^}]+)\\}@" ); |
| interpolator.addValueSource( new ObjectBasedValueSource( artifact ) ); |
| interpolator.addValueSource( new ObjectBasedValueSource( artifact.getArtifactHandler() ) ); |
| |
| // Support for special expressions, like @{dashClassifier?}@, see MWAR-212 |
| interpolator.addValueSource( new DashClassifierValueSource( artifact.getClassifier() ) ); |
| |
| value = interpolator.interpolate( value, "__artifact" ); |
| |
| return value; |
| } |
| } |