Java Stax how to get only value of specific child nodes

Question

I use Stax for get nodeName and nodeValue of my xml file (size 90 MB) :

<?xml version="1.0" encoding="UTF-8"?>
<name1>
    <type>
        <coord>67</coord>
        <umc>57657</umc>
    </type>
    <lang>
        <eng>989</eng>
        <spa>123</spa>
    </lang>
</name1>
<name2>
    <type>
        <coord>534</coord>
        <umc>654654</umc>
    </type>
    <lang>
        <eng>354</eng>
        <spa>2424</spa>
    </lang>
</name2>
<name3>
    <type>
        <coord>23432</coord>
        <umc>14324</umc>
    </type>
    <lang>
        <eng>141</eng>
        <spa>142</spa>
    </lang>
</name3>

I can get localName but not child nodes... if I want to get the value for all child nodes different of 'spa' how can I process to get that ?

Java:

XMLStreamReader dataXML = factory.createXMLStreamReader(new FileReader(path));
while (dataXML.hasNext())
{
    int type = dataXML.next();
    switch(type)
    {
        case XMLStreamReader.START_ELEMENT:
             System.out.println(dataXML.getLocalName());
             break;

        case XMLStreamReader.CHARACTERS:
             System.out.println(dataXML.getText());
             break;
     }
}

Answer 1

To keep track of element being parsed it's needed to introduce variable holding the current tag name as well as the variable with the tag name(s) of interest:

   String localname = null;
   String tagName = "spa";

    while (dataXML.hasNext()) {
        int type = dataXML.next();
        switch (type) {

            case XMLStreamReader.SPACE:
                continue;

            case XMLStreamReader.START_ELEMENT:
                localname = dataXML.getLocalName();
                System.out.println(dataXML.getLocalName());
                break;

            case XMLStreamReader.CHARACTERS:
                if (!tagName.equals(localname)) {
                    System.out.println(dataXML.getText());
                }
                break;
        }
    }

In case there are several tags you want to handle, variable tagName could be replaced with a list:

List<String> tagNames = new ArrayList<>();
tagNames.add("spa");

And the check would be following:

if (!tagNames.contains(localname)) {
    System.out.println(dataXML.getText());
}