Too many logs with XML which have DTD subset after XML completion, hover

Fixes #750 Signed-off-by: azerr <[email protected]>
eclipse · May 30, 2020 · cd69994 · cd69994
1 parent f2a90dd
commit cd69994
Showing 1 changed file with 26 additions and 5 deletions.
diff --git a/.../main/java/org/eclipse/lemminx/extensions/dtd/contentmodel/CMDTDContentModelProvider.java b/.../main/java/org/eclipse/lemminx/extensions/dtd/contentmodel/CMDTDContentModelProvider.java
@@ -14,16 +14,16 @@
 
 import java.util.Collection;
 import java.util.Collections;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 
+import org.apache.xerces.xni.XNIException;
 import org.apache.xerces.xni.grammars.Grammar;
+import org.apache.xerces.xni.parser.XMLErrorHandler;
 import org.apache.xerces.xni.parser.XMLInputSource;
+import org.apache.xerces.xni.parser.XMLParseException;
 import org.eclipse.lemminx.dom.DOMDocument;
 import org.eclipse.lemminx.dom.DOMDocumentType;
 import org.eclipse.lemminx.extensions.contentmodel.model.CMDocument;
 import org.eclipse.lemminx.extensions.contentmodel.model.ContentModelProvider;
-import org.eclipse.lemminx.services.XMLCompletions;
 import org.eclipse.lemminx.uriresolver.URIResolverExtensionManager;
 import org.eclipse.lemminx.utils.DOMUtils;
 import org.eclipse.lemminx.utils.StringUtils;
@@ -33,7 +33,23 @@
  */
 public class CMDTDContentModelProvider implements ContentModelProvider {
 
- private static final Logger LOGGER = Logger.getLogger(XMLCompletions.class.getName());
+ private static final XMLErrorHandler SILENT_ERROR_HANDLER = new XMLErrorHandler() {
+
+ @Override
+ public void warning(String domain, String key, XMLParseException exception) throws XNIException {
+ // Do nothing
+ }
+
+ @Override
+ public void fatalError(String domain, String key, XMLParseException exception) throws XNIException {
+ // Do nothing
+ }
+
+ @Override
+ public void error(String domain, String key, XMLParseException exception) throws XNIException {
+ // Do nothing
+ }
+ };
 
  private final URIResolverExtensionManager resolverExtensionManager;
 
@@ -71,6 +87,7 @@ public CMDocument createCMDocument(String key) {
  try {
  CMDTDDocument document = new CMDTDDocument(key);
  document.setEntityResolver(resolverExtensionManager);
+ document.setErrorHandler(SILENT_ERROR_HANDLER);
  Grammar grammar = document.loadGrammar(new XMLInputSource(null, key, null));
  if (grammar != null) {
  // DTD can be loaded
@@ -84,6 +101,8 @@ public CMDocument createCMDocument(String key) {
 
  @Override
  public CMDocument createInternalCMDocument(DOMDocument xmlDocument) {
+ // This method create a CMDocument for DOCTYPE subset to manage XML completion,
+ // hover based on DTD
  try {
  DOMDocumentType documentType = xmlDocument.getDoctype();
  String internalSubset = documentType != null ? documentType.getInternalSubset() : null;
@@ -92,12 +111,14 @@ public CMDocument createInternalCMDocument(DOMDocument xmlDocument) {
  }
  CMDTDDocument document = new CMDTDDocument();
  document.setEntityResolver(resolverExtensionManager);
+ document.setErrorHandler(SILENT_ERROR_HANDLER);
  String baseSystemId = null;
  String systemId = null;
  document.loadInternalDTD(internalSubset, baseSystemId, systemId);
  return document;
  } catch (Exception e) {
- LOGGER.log(Level.SEVERE, "Error while loading DOCTYPE subset", e);
+ // Don't log error, because DOCTYPE subset is never valid when user type some
+ // content in the DTD subset
  return null;
  }
  }