| /* |
| * 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 org.apache.axiom.util.stax.dialect; |
| |
| import java.io.InputStream; |
| |
| import javax.xml.stream.XMLInputFactory; |
| import javax.xml.stream.XMLStreamException; |
| import javax.xml.stream.XMLStreamReader; |
| |
| class XLXPInputFactoryWrapper extends NormalizingXMLInputFactoryWrapper { |
| public XLXPInputFactoryWrapper(XMLInputFactory parent, AbstractStAXDialect dialect) { |
| super(parent, dialect); |
| } |
| |
| public XMLStreamReader createXMLStreamReader(InputStream stream) throws XMLStreamException { |
| return createXMLStreamReader(null, stream); |
| } |
| |
| public XMLStreamReader createXMLStreamReader(String systemId, InputStream stream) |
| throws XMLStreamException { |
| // Both versions of XLXP have issues with documents using UTF-16 without byte |
| // order markers, although this type of document is explicitly supported by the XML |
| // specification: |
| // * XLXP parses the document, XMLStreamReader#getEncoding incorrectly reports |
| // UTF-8 as the detected encoding. |
| // * XLXP2 simply fails on UTF-16 documents without BOM. |
| EncodingDetectionHelper helper = new EncodingDetectionHelper(stream); |
| stream = helper.getInputStream(); |
| String encoding = helper.detectEncoding(); |
| if (encoding.startsWith("UTF-16")) { |
| if (systemId == null) { |
| return super.createXMLStreamReader(stream, encoding); |
| } else { |
| // Here we have an issue because it is not possible to specify the |
| // systemId and the encoding at the same time... |
| return super.createXMLStreamReader(systemId, stream); |
| } |
| } else { |
| if (systemId == null) { |
| return super.createXMLStreamReader(stream); |
| } else { |
| return super.createXMLStreamReader(systemId, stream); |
| } |
| } |
| } |
| } |