@NotNull
private static XmlFileHeader calcXmlFileHeader(final PsiFile file) {
// if (file.getFileType() == XmlFileType.INSTANCE) {
// VirtualFile virtualFile = file.getVirtualFile();
// if (virtualFile instanceof VirtualFileWithId) {
// ObjectStubTree tree = StubTreeLoader.getInstance().readFromVFile(file.getProject(),
// virtualFile);
// if (tree != null) {
// return ((FileStub)tree.getRoot()).getHeader();
// }
// }
// }
if (file instanceof XmlFile && file.getNode().isParsed()) {
final XmlDocument document = ((XmlFile) file).getDocument();
if (document != null) {
String publicId = null;
String systemId = null;
final XmlProlog prolog = document.getProlog();
if (prolog != null) {
final XmlDoctype doctype = prolog.getDoctype();
if (doctype != null) {
publicId = doctype.getPublicId();
systemId = doctype.getSystemId();
if (systemId == null) {
systemId = doctype.getDtdUri();
}
}
}
final XmlTag tag = document.getRootTag();
if (tag != null) {
String localName = tag.getLocalName();
if (StringUtil.isNotEmpty(localName)) {
if (tag.getPrevSibling() instanceof PsiErrorElement) {
return XmlFileHeader.EMPTY;
}
String psiNs = tag.getNamespace();
return new XmlFileHeader(
localName,
psiNs == XmlUtil.EMPTY_URI || Comparing.equal(psiNs, systemId) ? null : psiNs,
publicId,
systemId);
}
}
}
return XmlFileHeader.EMPTY;
}
if (!file.isValid()) return XmlFileHeader.EMPTY;
return NanoXmlUtil.parseHeader(file);
}
private static XmlFileHeader computeHeaderByPsi(XmlFile file) {
final XmlDocument document = file.getDocument();
if (document == null) {
return XmlFileHeader.EMPTY;
}
String publicId = null;
String systemId = null;
final XmlProlog prolog = document.getProlog();
if (prolog != null) {
final XmlDoctype doctype = prolog.getDoctype();
if (doctype != null) {
publicId = doctype.getPublicId();
systemId = doctype.getSystemId();
if (systemId == null) {
systemId = doctype.getDtdUri();
}
}
}
final XmlTag tag = document.getRootTag();
if (tag == null) {
return XmlFileHeader.EMPTY;
}
String localName = tag.getLocalName();
if (StringUtil.isNotEmpty(localName)) {
if (tag.getPrevSibling() instanceof PsiErrorElement) {
return XmlFileHeader.EMPTY;
}
String psiNs = tag.getNamespace();
return new XmlFileHeader(
localName,
psiNs == XmlUtil.EMPTY_URI || Comparing.equal(psiNs, systemId) ? null : psiNs,
publicId,
systemId);
}
return XmlFileHeader.EMPTY;
}