import org.apache.maven.internal.impl.model.DefaultModelTransformerContext.Holder;

/**
 * Builds up the transformer context.
 * After the buildplan is ready, the build()-method returns the immutable context useful during distribution.
 * This is an inner class, as it must be able to call readRawModel()
 *
 * @since 4.0.0
 */

import org.eclipse.aether.RepositorySystemSession.SessionBuilder;

/**
 * Factory for Resolver session.
 *
 * @since 4.0.0
 */
public interface RepositorySystemSessionFactory {
    /**
     * Creates "ready to use" session builder instance. The factory does not set up one thing: the
     * {@link org.eclipse.aether.repository.WorkspaceReader}s, that is caller duty to figure out. Workspace readers

     * @param session The build session in whose context the mojo will be used, must not be {@code null}.
     * @param mojoExecution The mojo execution to retrieve the mojo for, must not be {@code null}.
     * @return The ready-to-execute mojo, never {@code null}.
     */
    <T> T getConfiguredMojo(Class<T> mojoInterface, MavenSession session, MojoExecution mojoExecution)
            throws PluginConfigurationException, PluginContainerException;

            if (reader != null) {
                return xml.read(reader, request.isStrict(), source);
            } else {
                return xml.read(inputStream, request.isStrict(), source);
            }
        } catch (Exception e) {
            throw new XmlReaderException("Unable to read settings", e);
        }
    }

    @Override

            if (reader != null) {
                return xml.read(reader, request.isStrict(), source);
            } else {
                return xml.read(inputStream, request.isStrict(), source);
            }
        } catch (Exception e) {
            throw new XmlReaderException("Unable to read settings: " + getMessage(e), getLocation(e), e);
        }
    }

    @Override

        try (InputStream fis = Files.newInputStream(path)) {
            byte[] buffer = new byte[SHA1_BUFFER_SIZE];
            int read;
            while ((read = fis.read(buffer)) != -1) {
                md.update(buffer, 0, read);
            }
        }
        StringBuilder result = new StringBuilder();
        for (byte b : md.digest()) {
            result.append(String.format("%02x", b));

     * @throws IOException If the metadata could not be deserialized.
     * @throws MetadataParseException If the input format could not be parsed.
     */
    Metadata read(File input, Map<String, ?> options) throws IOException, MetadataParseException;

    /**
     * Reads the metadata from the specified character reader. The reader will be automatically closed before the method
     * returns.
     *

        try {
            try (InputStream is = settingsSource.openStream()) {
                settings = request.getSession()
                        .getService(SettingsXmlFactory.class)
                        .read(XmlReaderRequest.builder()
                                .inputStream(is)
                                .location(settingsSource.getLocation())
                                .strict(true)

    @Nullable
    String getModelId();

    @Nullable
    String getLocation();

    boolean isAddDefaultEntities();

    interface Transformer {
        /**
         * Interpolate the value read from the xml document
         *
         * @param source    The source value
         * @param fieldName A description of the field being interpolated. The implementation may use this to
         *                  log stuff.

            return properties;
        }

        try (Reader reader = Files.newBufferedReader(path)) {
            properties.load(reader);
        } catch (IOException e) {
            LOGGER.warn("Unable to read {}. The --resume / -r feature will not work.", path);
        }

        return properties;
    }

    // This method is made package-private for testing purposes