| package org.apache.maven.model.transform; |
| |
| /* |
| * 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 java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.Optional; |
| import java.util.function.Function; |
| |
| import org.apache.maven.model.transform.pull.NodeBufferingParser; |
| import org.codehaus.plexus.util.xml.pull.XmlPullParser; |
| |
| /** |
| * <p> |
| * Transforms relativePath to version. |
| * We could decide to simply allow {@code <parent/>}, but let's require the GA for now for checking |
| * This filter does NOT remove the relativePath (which is done by {@link RelativePathXMLFilter}, it will only |
| * optionally include the version based on the path |
| * </p> |
| * |
| * @author Robert Scholte |
| * @author Guillaume Nodet |
| * @since 4.0.0 |
| */ |
| class ParentXMLFilter |
| extends NodeBufferingParser |
| { |
| |
| private final Function<Path, Optional<RelativeProject>> relativePathMapper; |
| |
| private final Path projectPath; |
| |
| /** |
| * @param relativePathMapper |
| */ |
| ParentXMLFilter( XmlPullParser parser, |
| Function<Path, Optional<RelativeProject>> relativePathMapper, Path projectPath ) |
| { |
| super( parser, "parent" ); |
| this.relativePathMapper = relativePathMapper; |
| this.projectPath = projectPath; |
| } |
| |
| protected void process( List<Event> buffer ) |
| { |
| String tagName = null; |
| String groupId = null; |
| String artifactId = null; |
| String version = null; |
| String relativePath = null; |
| String whitespaceAfterParentStart = ""; |
| boolean hasVersion = false; |
| boolean hasRelativePath = false; |
| for ( int i = 0; i < buffer.size(); i++ ) |
| { |
| Event event = buffer.get( i ); |
| if ( event.event == START_TAG ) |
| { |
| tagName = event.name; |
| hasVersion |= "version".equals( tagName ); |
| hasRelativePath |= "relativePath".equals( tagName ); |
| } |
| else if ( event.event == TEXT ) |
| { |
| if ( event.text.matches( "\\s+" ) ) |
| { |
| if ( whitespaceAfterParentStart.isEmpty() ) |
| { |
| whitespaceAfterParentStart = event.text; |
| } |
| } |
| else if ( "groupId".equals( tagName ) ) |
| { |
| groupId = nullSafeAppend( groupId, event.text ); |
| } |
| else if ( "artifactId".equals( tagName ) ) |
| { |
| artifactId = nullSafeAppend( artifactId, event.text ); |
| } |
| else if ( "relativePath".equals( tagName ) ) |
| { |
| relativePath = nullSafeAppend( relativePath, event.text ); |
| } |
| else if ( "version".equals( tagName ) ) |
| { |
| version = nullSafeAppend( version, event.text ); |
| } |
| } |
| else if ( event.event == END_TAG && "parent".equals( event.name ) ) |
| { |
| Optional<RelativeProject> resolvedParent; |
| if ( !hasVersion && ( !hasRelativePath || relativePath != null ) ) |
| { |
| Path relPath = Paths.get( Objects.toString( relativePath, "../pom.xml" ) ); |
| resolvedParent = resolveRelativePath( relPath, groupId, artifactId ); |
| } |
| else |
| { |
| resolvedParent = Optional.empty(); |
| } |
| if ( !hasVersion && resolvedParent.isPresent() ) |
| { |
| int pos = buffer.get( i - 1 ).event == TEXT ? i - 1 : i; |
| Event e = new Event(); |
| e.event = TEXT; |
| e.text = whitespaceAfterParentStart; |
| buffer.add( pos++, e ); |
| e = new Event(); |
| e.event = START_TAG; |
| e.namespace = buffer.get( 0 ).namespace; |
| e.prefix = buffer.get( 0 ).prefix; |
| e.name = "version"; |
| buffer.add( pos++, e ); |
| e = new Event(); |
| e.event = TEXT; |
| e.text = resolvedParent.get().getVersion(); |
| buffer.add( pos++, e ); |
| e = new Event(); |
| e.event = END_TAG; |
| e.name = "version"; |
| e.namespace = buffer.get( 0 ).namespace; |
| e.prefix = buffer.get( 0 ).prefix; |
| buffer.add( pos++, e ); |
| } |
| break; |
| } |
| } |
| buffer.forEach( this::pushEvent ); |
| } |
| |
| |
| protected Optional<RelativeProject> resolveRelativePath( Path relativePath, String groupId, String artifactId ) |
| { |
| Path pomPath = projectPath.resolve( relativePath ); |
| if ( Files.isDirectory( pomPath ) ) |
| { |
| pomPath = pomPath.resolve( "pom.xml" ); |
| } |
| |
| Optional<RelativeProject> mappedProject = relativePathMapper.apply( pomPath.normalize() ); |
| |
| if ( mappedProject.isPresent() ) |
| { |
| RelativeProject project = mappedProject.get(); |
| |
| if ( Objects.equals( groupId, project.getGroupId() ) |
| && Objects.equals( artifactId, project.getArtifactId() ) ) |
| { |
| return mappedProject; |
| } |
| } |
| return Optional.empty(); |
| } |
| |
| } |