CODEWITHSUNDEEP
iso8583multiplexingjpos
Sanjok
Sanjok

Reputation: 437

How to read jpos QMUX key field programmatically?

For some reason, I want to read the key I have set inside the QMUX config file (20_client_mux.xml) with <key>37</key>.I could not find any way from jpos itself, so I am using the below code to get things done. I want to do it without using Reflection and I am happy if there is no need for creating a subclass extending either QMUX or XMLConfigurable.

    import org.springframework.util.ReflectionUtils;

    private static String getUniqueFieldId() {
            final String[][] key = {new String[1]};
            ReflectionUtils.doWithFields(QMUX.class, field -> {
                if (field.getName().equals("key")) {
                    field.setAccessible(true);
                    key[0] = (String[]) field.get(mux);
                }
            });
            return key[0][0];
        }

Upvotes: 3

Views: 214

Answers (3)

Sanjok
Sanjok

Reputation: 437

After all, I was able to access the keys through a short and single line of code and there is no need to create a new class just for this purpose.

mux.getPersist().getChildTextTrim("key");

Upvotes: 5

apr
apr

Reputation: 1343

You can extend QMUX, implement XMLConfigurable and call getChildTextTrim("key") on the XML Element. Remember of course to call super.setXmlConfiguration.

Relevant code is at QMUX lines 78-87:

        key = toStringArray(DEFAULT_KEY, ", ", null);
        returnRejects = cfg.getBoolean("return-rejects", false);
        for (Element keyElement : e.getChildren("key")) {
            String mtiOverride = QFactory.getAttributeValue(keyElement, "mti");
            if (mtiOverride != null && mtiOverride.length() >= 2) {
                mtiKey.put (mtiOverride.substring(0,2), toStringArray(keyElement.getTextTrim(), ", ", null));
            } else {
                key = toStringArray(e.getChildTextTrim("key"), ", ", DEFAULT_KEY);
            }
        }

Upvotes: 1

Andr&#233;s Alcarraz
Andr&#233;s Alcarraz

Reputation: 1865

You can extend QMUX and add a public getKey() method, like:

package mypackage;

import org.jpos.q2.iso.QMUX;

public class MyQMUX extends QMUX {
  public String[] getKey() {
    return key;
  }
}

Then in the xml deploy descriptor use your QMUX implementation:

<mux class="mypackage.MyQMUX" ...>
...
</mux>

Upvotes: 0

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