Escaping quotes using jackson-dataformat-xml

Question

I need help with jackson-dataformat-xml . I need to serialize List<String> using XmlMapper into the xml with encoding the quotes " → " .

But after serializing XmlMapper encodes all other special symbols ( < , > , & etc) but ignores quotes ( ' and " ) at all... If I encode the string manually before serialization, the content messes up because " has '&' inside and it's serializing as " instead of course.

Maybe anyone knows how to make it work? Also, is there a way as work-around to disable auto special symbols encoding on the List<String> field using @JacksonRawValue or something like that? This annotation works great on simple (non-arrays) fields but not gonna work properly on List<String> .

Thanks.

Answer 1

Here's how the problem was solved. I used woodbox Stax2 extension. This helped a lot. https://github.com/FasterXML/jackson-dataformat-xml/issues/75

XmlMapper xmlMapper = new XmlMapper(module);
xmlMapper.getFactory().getXMLOutputFactory().setProperty(XMLOutputFactory2.P_TEXT_ESCAPER, 
new CustomXmlEscapingWriterFactory());

And here's the factory.

public class CustomXmlEscapingWriterFactory implements EscapingWriterFactory {
public Writer createEscapingWriterFor(final Writer out, String enc) {
    return new Writer(){
        @Override
        public void write(char[] cbuf, int off, int len) throws IOException {
            String val = "";
            for (int i = off; i < len; i++) {
                val += cbuf[i];
            }
            String escapedStr =  StringEscapeUtils.escapeXml(val);
            out.write(escapedStr);
        }

        @Override
        public void flush() throws IOException {
            out.flush();
        }

        @Override
        public void close() throws IOException {
            out.close();
        }
      };
    }

    public Writer createEscapingWriterFor(OutputStream out, String enc) {
        throw new IllegalArgumentException("not supported");
    }
}