Map list of strings to Enum with YamlReader?

[Matthew Cummings]

Hi,

I've looked at the unit test examples in the GitHub repo but can't figure out how to do this in my code, my YAML snippet looks like this:

stages:

  - EXTRACT

  - TAG

  - ZIP

I want to map that into so that stages becomes an ArrayList<stageEnum>

My enum class looks like:

enum stageEnum { EXTRACT, TAG, ZIP }

Is this possible?  

Any help is appreciated.

Thank you!

[Nate]

    static public enum Moo {
        a, b, c
    }

    static public class Cow {
        public ArrayList<Moo> list;
    }

    public static void main (String[] args) throws Exception {
        Cow cow = new Cow();
        cow.list = new ArrayList();
        cow.list.add(Moo.a);
        cow.list.add(Moo.b);
        StringWriter writer = new StringWriter();
        YamlWriter out = new YamlWriter(writer);
        out.write(cow);
        out.close();
        System.out.println(writer.toString());
        YamlReader reader = new YamlReader(writer.toString());
        System.out.println(reader.read(Cow.class).list);
    }

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[Matthew Cummings]

Excellent, thanks.  BTW, I found a bug.  Your example does not work when there is an underscore in the package name/path.  In that case you get an exception like this one:

Exception in thread "main" com.esotericsoftware.yamlbeans.YamlException: Error tokenizing YAML.

at com.esotericsoftware.yamlbeans.YamlReader.read(YamlReader.java:107)

at com.esotericsoftware.yamlbeans.YamlReader.read(YamlReader.java:90)

at com.carbonblack.cbprove.tools.bobobob_bobobob.Application.main(Application.java:32)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)

Caused by: com.esotericsoftware.yamlbeans.tokenizer.Tokenizer$TokenizerException: Line 0, column 38: While scanning a tag, expected ' ' but found: '_' (95)

at com.esotericsoftware.yamlbeans.tokenizer.Tokenizer.scanTag(Tokenizer.java:703)

at com.esotericsoftware.yamlbeans.tokenizer.Tokenizer.fetchTag(Tokenizer.java:484)

at com.esotericsoftware.yamlbeans.tokenizer.Tokenizer.fetchMoreTokens(Tokenizer.java:304)

at com.esotericsoftware.yamlbeans.tokenizer.Tokenizer.peekNextToken(Tokenizer.java:120)

at com.esotericsoftware.yamlbeans.tokenizer.Tokenizer.peekNextTokenType(Tokenizer.java:125)

at com.esotericsoftware.yamlbeans.parser.Parser$4.produce(Parser.java:131)

at com.esotericsoftware.yamlbeans.parser.Parser.getNextEvent(Parser.java:80)

at com.esotericsoftware.yamlbeans.YamlReader.read(YamlReader.java:98)

... 7 more

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