Return-Teil der groovy Sammlungen

Question

Ich bin neu bei groovy und Programmiersprachen, und ich versuche, als String nur ein "Second Admin" passendes Datum mit "End Transition" Rekord bei Logs sind toString = Second Admin und Zweiter Admin = Ende Übergang. Ich weiß, ich muß es irgendwie tun, indem zunächst für jeden für Scan-Sammlung dann, wenn und Rückgabewert, was ich brauche, aber nicht wissen, wie es

für alle Hilfe

Vielen Dank im Rat codieren und andeuten

def NameOfPerson= changeHistories.collect {history ->; 
     history.getChangeItemBeans().findResults {ChangeItemBean change ->; 
     log.info("###############################################$change"); 
     } 
} 

Ausgang:

[fieldType=jira,field=Workflow,from=10306,fromString=Software Simplified Workflow for Project TP,to=10329,toString=Software Simplified Workflow for Project DEMO,created=2017-06-16 21:54:20.183] 
    [fieldType=jira,field=status,from=10000,fromString=To Do,to=10300,toString=End Transition,created=2017-06-25 17:20:25.989] 
    [fieldType=jira,field=status,from=10300,fromString=End Transition,to=10216,toString=Start Transition,created=2017-06-25 17:21:23.134] 
    [fieldType=jira,field=status,from=10216,fromString=Start Transition,to=10300,toString=End Transition,created=2017-06-25 17:21:25.613] 
    [fieldType=jira,field=status,from=10300,fromString=End Transition,to=10216,toString=Start Transition,created=2017-06-25 17:52:01.677] 
    [fieldType=jira,field=status,from=10216,fromString=Start Transition,to=10300,toString=End Transition,created=2017-06-25 17:52:06.668] 
    [fieldType=jira,field=status,from=10300,fromString=End Transition,to=10216,toString=Start Transition,created=2017-06-25 19:08:25.628] 
    [fieldType=jira,field=status,from=10216,fromString=Start Transition,to=10300,toString=End Transition,created=2017-06-25 19:08:28.563] 
    [fieldType=jira,field=status,from=10300,fromString=End Transition,to=10216,toString=Start Transition,created=2017-06-25 19:18:30.001] 
    [fieldType=jira,field=status,from=10216,fromString=Start Transition,to=10300,toString=End Transition,created=2017-06-25 19:18:33.045] 
    [fieldType=jira,field=assignee,from=admin,fromString=Second Admin,to=ID10101,toString=Main Admin,created=2017-06-26 04:55:11.57] 
    [fieldType=jira,field=status,from=10300,fromString=End Transition,to=10216,toString=Start Transition,created=2017-06-26 04:55:20.84] 
    [fieldType=jira,field=assignee,from=ID10101,fromString=Main Admin,to=admin,toString=Second Admin,created=2017-06-26 04:55:20.84] 
    [fieldType=jira,field=status,from=10216,fromString=Start Transition,to=10300,toString=End Transition,created=2017-06-26 04:55:24.836] 
    [fieldType=jira,field=assignee,from=admin,fromString=Second Admin,to=ID10101,toString=Main Admin,created=2017-06-26 04:59:59.658] 
    [fieldType=jira,field=status,from=10300,fromString=End Transition,to=10216,toString=Start Transition,created=2017-06-26 05:00:03.354] 
    [fieldType=jira,field=assignee,from=ID10101,fromString=Main Admin,to=admin,toString=Second Admin,created=2017-06-26 05:00:03.354] 
    [fieldType=jira,field=status,from=10216,fromString=Start Transition,to=10300,toString=End Transition,created=2017-06-26 05:00:06.645] 
    [fieldType=jira,field=assignee,from=admin,fromString=Second Admin,to=ID10101,toString=Main Admin,created=2017-06-26 05:05:45.697] 
    [fieldType=jira,field=status,from=10300,fromString=End Transition,to=10216,toString=Start Transition,created=2017-06-26 05:05:48.899] 
    [fieldType=jira,field=assignee,from=ID10101,fromString=Main Admin,to=admin,toString=Second Admin,created=2017-06-26 05:05:48.899] 
    [fieldType=jira,field=status,from=10216,fromString=Start Transition,to=10300,toString=End Transition,created=2017-06-26 05:05:51.99] 
    [fieldType=jira,field=assignee,from=admin,fromString=Second Admin,to=ID10101,toString=Main Admin,created=2017-06-26 05:07:13.985] 
    [fieldType=jira,field=status,from=10300,fromString=End Transition,to=10216,toString=Start Transition,created=2017-06-26 05:07:16.563] 
    [fieldType=jira,field=assignee,from=ID10101,fromString=Main Admin,to=admin,toString=Second Admin,created=2017-06-26 05:07:16.563] 

Answer 1

, sobald Sie nicht Eingabe/Ausgabe-Datenproben zur Verfügung stellen können, hier ist die allgemeine Antwort:

ein Element in der Liste finden Sieverwenden könnenVerfahren und findAll Methode

sowohl in groovy Sammlung definiert verwenden Liste der Elemente (sublist) zu finden: http://docs.groovy-lang.org/latest/html/groovy-jdk/java/util/Collection.html

nur ein Beispiel:

def list = [ 
    [a:1,b:'bbb01',c:'ccc01'], 
    [a:2,b:'bbb02',c:'ccc02'], 
    [a:3,b:'bbb01',c:'ccc03'], 
    [a:4,b:'bbb02',c:'ccc04'], 
] 

println list.find{it.a==3} 
//prints> [a:3, b:bbb01, c:ccc03] 

println list.find{it.a==3}.c 
//prints> ccc03 

println list.find{it.a==0}?.c 
//prints> null 
//without ? throws NullPointerException 

//findAll builds a sub-list for which expression is true 
println list.findAll{it.b=='bbb02'} 
//prints> [[a:2, b:bbb02, c:ccc02], [a:4, b:bbb02, c:ccc04]] 

//collect builds tha list of the same size but with transformed values 
println list.collect{it.b} 
//prints> [bbb01, bbb02, bbb01, bbb02]