convert clipboard page and/or xml to json
What is the best way to convert a clipboard page and/or xml to json in pega 7.1.5? I imagine there is a java method or pega function that is invoked for REST service functionality... my needs are not REST-specific, but I should be able to use the same assets.
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The ClipboardPage java API has JSON and XML conversion methods - adoptJSONObject, adoptJSONArray, and adoptXMLForm for populating a clipboard page with JSON/XML data, getJSON and getXML for converting the contents of a clipboard page to an JSON/XML string value.
thanks. that did the trick; i created a simple function that serves my needs:
PublicAPI tools = (PegaAPI) ThreadContainer.get().getPublicAPI();
ClipboardPage stepPage = tools.getStepPage();
String retValue = stepPage.getJSON(false);
return retValue;
This might help:
com.pega.dsm.dnode.util.ClipboardPageJsonConverter converter = new com.pega.dsm.dnode.util.ClipboardPageJsonConverter(false);
net.sf.json.JSONObject json_obj=net.sf.json.JSONObject.fromObject( converter.asJsonString( tools.getStepPage() ) );
net.sf.json.JSONObject stripped_json_obj=new net.sf.json.JSONObject();
Iterator<?> keys = json_obj.keys();
while( keys.hasNext() ) {
String key = (String)keys.next();
if ( (!( key.startsWith("px") )) && (!( key.startsWith("py") )) && (!( key.startsWith("pz") )) ) {
stripped_json_obj.put( key , json_obj.get(key) );
}
} Or this:
// generate json from this template
com.pega.dsm.dnode.util.ClipboardPageJsonConverter converter = new com.pega.dsm.dnode.util.ClipboardPageJsonConverter(false);
converter.setPrettyPrint(true);
java.nio.ByteBuffer json = converter.asJson(sourcePage);
String jsonString = new String(json.array());
// remove pxObjClass
jsonString = jsonString.replaceAll("\"pxObjClass\"\\s*?:\\s*?\".*?\",?\\s+", "");
return jsonString; The class/package names may need to altered - depending on your version of PRPC (The first example comes from PRPC72 for instance).
This might help:
com.pega.dsm.dnode.util.ClipboardPageJsonConverter converter = new com.pega.dsm.dnode.util.ClipboardPageJsonConverter(false);
net.sf.json.JSONObject json_obj=net.sf.json.JSONObject.fromObject( converter.asJsonString( tools.getStepPage() ) );
net.sf.json.JSONObject stripped_json_obj=new net.sf.json.JSONObject();
Iterator<?> keys = json_obj.keys();
while( keys.hasNext() ) {
String key = (String)keys.next();
if ( (!( key.startsWith("px") )) && (!( key.startsWith("py") )) && (!( key.startsWith("pz") )) ) {
stripped_json_obj.put( key , json_obj.get(key) );
}
} Or this:
// generate json from this template
com.pega.dsm.dnode.util.ClipboardPageJsonConverter converter = new com.pega.dsm.dnode.util.ClipboardPageJsonConverter(false);
converter.setPrettyPrint(true);
java.nio.ByteBuffer json = converter.asJson(sourcePage);
String jsonString = new String(json.array());
// remove pxObjClass
jsonString = jsonString.replaceAll("\"pxObjClass\"\\s*?:\\s*?\".*?\",?\\s+", "");
return jsonString; The class/package names may need to altered - depending on your version of PRPC (The first example comes from PRPC72 for instance).
The JSON handling/conversions in upcoming versions of PRPC will be improved to provide an easier way to perform JSON<->Property mappings; but unfortunately (as far as I know) - you are stuck with having to 'post-process' the JSON as shown above.
What version of PRPC are you using ? It is possible that library I used in the snippet isn't shipped with that version.
If you check 'pr_engineclasses' table - look for anything that has the word 'json' in it as a starting point.
So: something like this:
select distinct(pzjar) from pr_engineclasses
where upper(pzpackage) like '%JSON%'
or upper(pzjar) like '%JSON%'
order by pzjar;
And then basically - see if the JARs are well-known third-party jars, and then check the javadocs for a function that could help.
(it's a bit hacky the above: but that's what I did to find the 'net.sf.json' in the first place!)
I have simmilar requirement to send JsonObject in Rest Header, I have used the below code to convert Clipboard object to JSON but it gives me a JSON object with pxObjClass. I tried the above approach mentioned but no luck. Please help me
PublicAPI tools = (PegaAPI) ThreadContainer.get().getPublicAPI();
ClipboardPage stepPage = tools.getStepPage();
retValue = stepPage.getJSON(false);