content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   * 
   *      http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package mf.org.apache.xerces.jaxp.validation;
  
  import org.xml.sax.SAXException;
  import org.xml.sax.SAXParseException;
  
  import mf.javax.xml.transform.stream.StreamSource;
  import mf.org.apache.xerces.xni.XNIException;
  import mf.org.apache.xerces.xni.parser.XMLInputSource;
  import mf.org.apache.xerces.xni.parser.XMLParseException;
  
  /**
   * <p>Static utility methods for the Validation API implementation.</p>
   *
   * @author Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
   * @version $Id: Util.java 447235 2006-09-18 05:01:44Z mrglavas $
   */
  final class Util {
  
      /**
       * Creates a proper {@link XMLInputSource} from a {@link StreamSource}.
       *
       * @return always return non-null valid object.
       */
      public static final XMLInputSource toXMLInputSource(StreamSource in) {
          if (in.getReader() != null)
              return new XMLInputSource(
                      in.getPublicId(), in.getSystemId(), in.getSystemId(),
                      in.getReader(), null);
          if (in.getInputStream() != null)
              return new XMLInputSource(
                      in.getPublicId(), in.getSystemId(), in.getSystemId(),
                      in.getInputStream(), null);
  
          return new XMLInputSource(
                  in.getPublicId(), in.getSystemId(), in.getSystemId());
      }
  
      /**
       * Reconstructs {@link SAXException} from XNIException.
       */
      public static SAXException toSAXException(XNIException e) {
          if (e instanceof XMLParseException)
              return toSAXParseException((XMLParseException) e);
          if (e.getException() instanceof SAXException)
              return (SAXException) e.getException();
          return new SAXException(e.getMessage(), e.getException());
      }
  
      public static SAXParseException toSAXParseException(XMLParseException e) {
          if (e.getException() instanceof SAXParseException)
              return (SAXParseException) e.getException();
          return new SAXParseException(e.getMessage(),
                  e.getPublicId(), e.getExpandedSystemId(),
                  e.getLineNumber(), e.getColumnNumber(),
                  e.getException());
      }
  
  } // Util
  