@Tags({"json mapping with entitymaker"})
@CapabilityDescription("Provide a description")
public class MyProcessor extends AbstractProcessor {
public static final Relationship SUCCESS = new Relationship.Builder()
.name("SUCCESS")
.description("Successfully converted incoming json file to EntitymakerJSON")
.build();
public static final Relationship FALIURE = new Relationship.Builder()
.name("FALIURE")
.description("Successfully converted incoming json file to EntitymakerJSON")
.build();
private Set<Relationship> relationships;
@Override
protected void init(final ProcessorInitializationContext context) {
final Set<Relationship> relationships = new HashSet<Relationship>();
relationships.add(SUCCESS);
relationships.add(FALIURE);
this.relationships = Collections.unmodifiableSet(relationships);
}
@Override
public Set<Relationship> getRelationships() {
return relationships;
}
/* public final List<PropertyDescriptor> getSupportedPropertyDescriptors() {
return null ;
}
@OnScheduled
public void onScheduled(final ProcessContext context) {
}*/
@Override
public void onTrigger(final ProcessContext context, final ProcessSession session)
throws ProcessException,FlowFileHandlingException {
final AtomicReference<String> value = new AtomicReference<>();
FlowFile flowFile = session.get();
if ( flowFile == null ) {
return;
}
session.read(flowFile, new InputStreamCallback() {
@Override
public void process(InputStream in) throws IOException {
try{
JSONParser parser = new JSONParser();
JSONArray inputdata;
String json = IOUtils.toString(in);
inputdata = (JSONArray) parser.parse(json);
Jsonmapping jsm = new Jsonmapping();
for (Object o : inputdata)
{
JSONObject person = (JSONObject) o;
JSONObject jo = jsm.finaljson(person);
value.set(jo.toString());
}
}catch(Exception ex){
ex.printStackTrace();
getLogger().error("Failed to read json string.");
}
}
});
flowFile = session.write(flowFile, new OutputStreamCallback() {
@Override
public void process(OutputStream out) throws IOException {
out.write(value.get().getBytes());
}
});
session.transfer(flowFile, SUCCESS);
}
}
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