* KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.api.services.xml;

public interface Location {

    /**
     * Return the line number where the current event ends,
     * returns -1 if none is available.
     * @return the current line number
     */
    int getLineNumber();

    /**

                        .read(XmlReaderRequest.builder()
                                .inputStream(is)
                                .location(toolchainsSource.getLocation())
                                .strict(false)
                                .build());
                Location loc = e.getCause() instanceof XMLStreamException xe ? xe.getLocation() : null;
                problems.add(new DefaultBuilderProblem(

    private final Location location;

    /**
     * @param message the message for the exception
     * @param e the exception itself
     */
    public XmlReaderException(String message, Location location, Exception e) {
        super(message, e);
        this.location = location;
    }

    public Location getLocation() {
        return location;
    }

    static ModelSource fromPath(@Nonnull Path path) {
        return fromPath(path, null);
    }

    @Nonnull
    static ModelSource fromPath(@Nonnull Path path, @Nullable String location) {
        return new PathSource(nonNull(path, "path cannot be null"), location);
    }

        add(severity, version, message, null, null);
    }

    default void add(
            BuilderProblem.Severity severity, ModelProblem.Version version, String message, InputLocation location) {
        add(severity, version, message, location, null);
    }

    default void add(
            BuilderProblem.Severity severity, ModelProblem.Version version, String message, Exception exception) {

        if (msg != null && !msg.isEmpty()) {
            buffer.append(" ").append(msg);
        }
        String location = getLocation();
        if (!location.isEmpty()) {
            buffer.append(" @ ").append(location);
        }
        return buffer.toString();
    }

import org.apache.maven.api.services.xml.Location;

public class StaxLocation implements Location {

    private final javax.xml.stream.Location location;

    public static Location getLocation(Exception e) {
        return toLocation(e instanceof XMLStreamException xe ? xe.getLocation() : null);
    }

    public static Location toLocation(javax.xml.stream.Location location) {

 * <p>
 * Plugin metadata contains G level list of "prefix" to A mapping for plugins present under this G.
 */
class PluginsMetadataGenerator implements MetadataGenerator {
    private static final String PLUGIN_DESCRIPTOR_LOCATION = "META-INF/maven/plugin.xml";

    private final Map<Object, PluginsMetadata> processedPlugins;

    private final Date timestamp;

    PluginsMetadataGenerator(RepositorySystemSession session, InstallRequest request) {

            String message,
            InputLocation location,
            Exception exception) {
        int line = -1;
        int column = -1;
        String source = null;
        String modelId = null;

        if (location != null) {
            line = location.getLineNumber();
            column = location.getColumnNumber();
            if (location.getSource() != null) {

class PathSource implements ModelSource {

    private final Path path;
    private final String location;

    PathSource(Path path) {
        this(path, null);
    }

    PathSource(Path path, String location) {
        this.path = path;
        this.location = location != null ? location : path.toString();
    }

    @Override
    public Path getPath() {
        return path;
    }