public Model read()

in src/main/java/org/apache/maven/xinclude/XIncludeModelXmlFactory.java [56:99]
44 lines of code
15 McCabe index (conditional complexity)

    public Model read(XmlReaderRequest request) throws XmlReaderException {
        nonNull(request, "request");
        Path path = request.getPath();
        URL url = request.getURL();
        Reader reader = request.getReader();
        InputStream inputStream = request.getInputStream();
        if (path == null && url == null && reader == null && inputStream == null) {
            throw new IllegalArgumentException("path, url, reader or inputStream must be non null");
        }
        try {
            InputSource source = null;
            if (request.getModelId() != null || request.getLocation() != null) {
                source = new InputSource(
                        request.getModelId(), path != null ? path.toUri().toString() : null);
            }
            MavenStaxReader xml = new MavenStaxReader();
            xml.setAddDefaultEntities(request.isAddDefaultEntities());
            if (path != null && request.isStrict()) {
                Source src = inputStream != null
                        ? new StreamSource(inputStream, path.toUri().toString())
                        : new Stax2FileSource(path.toFile());
                XMLStreamReader parser = XInclude.xinclude(src, new LocalXmlResolver(request.getRootDirectory()));
                try {
                    return xml.read(parser, request.isStrict(), source);
                } finally {
                    parser.close();
                }
            } else if (inputStream != null) {
                return xml.read(inputStream, request.isStrict(), source);
            } else if (reader != null) {
                return xml.read(reader, request.isStrict(), source);
            } else if (path != null) {
                try (InputStream is = Files.newInputStream(path)) {
                    return xml.read(is, request.isStrict(), source);
                }
            } else {
                try (InputStream is = url.openStream()) {
                    return xml.read(is, request.isStrict(), source);
                }
            }
        } catch (Exception e) {
            throw new XmlReaderException("Unable to read model: " + getMessage(e), getLocation(e), e);
        }
    }