| /* |
| * 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.root; |
| |
| import javax.inject.Named; |
| import javax.xml.stream.XMLStreamException; |
| import javax.xml.stream.XMLStreamReader; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| |
| import com.ctc.wstx.stax.WstxInputFactory; |
| |
| @Named |
| public class DefaultRootLocator implements RootLocator { |
| |
| public boolean isRootDirectory(Path dir) { |
| if (Files.isDirectory(dir.resolve(".mvn"))) { |
| return true; |
| } |
| // we're too early to use the modelProcessor ... |
| Path pom = dir.resolve("pom.xml"); |
| try (InputStream is = Files.newInputStream(pom)) { |
| XMLStreamReader parser = new WstxInputFactory().createXMLStreamReader(is); |
| if (parser.nextTag() == XMLStreamReader.START_ELEMENT |
| && parser.getLocalName().equals("project")) { |
| for (int i = 0; i < parser.getAttributeCount(); i++) { |
| if ("root".equals(parser.getAttributeLocalName(i))) { |
| return Boolean.parseBoolean(parser.getAttributeValue(i)); |
| } |
| } |
| } |
| } catch (IOException | XMLStreamException e) { |
| // The root locator can be used very early during the setup of Maven, |
| // even before the arguments from the command line are parsed. Any exception |
| // that would happen here should cause the build to fail at a later stage |
| // (when actually parsing the POM) and will lead to a better exception being |
| // displayed to the user, so just bail out and return false. |
| } |
| return false; |
| } |
| } |