javaandroidxml-parsingsimple-framework

SimpleXML parse ignores @Root name parameter


SimpleXML library has issue. It ignores @Root name. Here is code with test:

Class:

@Root(name = "res", strict = true)
@Data
@NoArgsConstructor
@AllArgsConstructor
class Response {

    @Attribute(name = "a")
    private Integer a;

    @Attribute(name = "i")
    private Integer i;

    @Attribute(name = "o", required = false)
    private Integer o;

}

Test:

    @Test
    public void detectXml() {

        Serializer serializer = new Persister();

        String xml = "<xxx a=\"1\" i=\"1\"/>";

        Response res = null;
        try {
            res = serializer.read(Response.class, xml);
        } catch (Exception e) {
            e.printStackTrace();
        }

        assertNotNull(res);

    }

Test passes no matter what is first tag in xml ie."<xxx" library ignores @Root name "res". Any suggestions beside to switch to another XML parser library? Can anyone suggest one with class annotations like SimpleXML?


Solution

  • ........
    @Convert(Response.ResponseConverter.class)
    class Response {
    
        ...........
    
        public static class ResponseConverter implements Converter<Response> {
    
            public ResponseTest read(InputNode node) throws Exception {
            String rootAnnotation = ResponseTest.class.getAnnotation(Root.class).name();
            if (!node.getName().equals(rootAnnotation) && node.isRoot()) {
                return null;
            }
            return new ResponseTest();
        }
            .................
        }
    }
    
    
    
         @Test
    public void detectXml() {
    
        Serializer serializer = new Persister();
    
        String xml = "<xxx a=\"1\" i=\"1\"/>";
    
        ResponseTest res = null;
        try {
            StringReader stringReader = new StringReader(xml);
            res = new Persister(new AnnotationStrategy()).read(ResponseTest.class, NodeBuilder.read(stringReader));
            if (res != null) {
                res = serializer.read(ResponseTest.class, xml);
            }
            System.out.println(res);
        } catch (Exception e) {
            e.printStackTrace();
        }
    
        Assert.assertNotNull(res);
    }
    

    You can override the read method using @Converter annotation and validate the root name by fetching the Annotation value.