Support array result include sequence action

[ningyougang]

Depend on below prs:

• Support array result for common action and sequence action openwhisk#5290

• Support array result include sequence action openwhisk-runtime-go#170

• Support array result

  • make java runtime to support array result for common action
  • make java runtime to support array result for sequence action (support array as input param)

[ningyougang]

Test make java runtime to support array result for sequence action (support array as input param)'s steps as below

• Write Split.java and Sort.java

[root@nccddev130026 ~]# cat ~/Split.java 
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;

public class Split {
    public static JsonArray main(JsonObject args) {
        String separator = "\n";
        if (args.has("separator")) {
            separator = args.getAsJsonPrimitive("separator").getAsString();
        }
        String payLoad = "aaaa\nbbbb\ncccc";
        if (args.has("payload")) {
            payLoad = args.getAsJsonPrimitive("payload").getAsString();
        }
        JsonArray jsonArray = new JsonArray();
        String[] stringArray = payLoad.split(separator);
        for(String element: stringArray) {
            jsonArray.add(element);
        }
        return jsonArray;
    }
}

[root@nccddev130026 ~]# cat ~/Sort.java 
import com.google.gson.JsonArray;

public class Sort {
    public static JsonArray main(JsonArray args) {
        JsonArray newJsonArray = new JsonArray();
        for(int i=args.size()-1;i>=0;i--) {
            newJsonArray.add(args.get(i).getAsString());
        }
        return newJsonArray;
    }
}

• Create java sequence action & invoke it

javac -classpath "/root/gson-2.9.0.jar" Split.java
jar cvf split.jar Split.class
wsk -i action create /whisk.system/utils/split-java split.jar --main Split --kind java:8

javac -classpath "/root/gson-2.9.0.jar" Sort.java
jar cvf sort.jar Sort.class

wsk -i action create /whisk.system/utils/sort-java sort.jar --main Sort --kind java:8
wsk -i action create mySequence-java --sequence /whisk.system/utils/split-java,/whisk.system/utils/sort-java
wsk -i action invoke --result mySequence-java --param payload "aaaa\nbbbb\ncccc" -r -v

[ningyougang]

Because need to support array result, cannot instantiate mainMethod in /init step, should move this relative logic to /run logic due to input param/out result can be JsonObject or JsonArray

[ningyougang]

Due to https://github.com/apache/openwhisk-runtime-java/pull/140/files#r939487201, need to change test case here for a small change as above.

[ningyougang]

@style95 seems change GO_PROXY_BUILD_FROM to source is not better, but in order to support array result, must use go runtime's upstream master code.

Can we release a new version for go runtime? e.g. https://github.com/apache/openwhisk-runtime-java/blob/master/core/java8actionloop/Dockerfile#L29

[dgrove-oss]

We could do a wave of runtime releases, starting with the go runtime. Would be reasonable to plan to get the go runtime released this week (takes 72 hours for the vote).

[ningyougang]

@dgrove-oss , due to go runtime : 1.20.0 is released, i have updated all runtime prs(support array result)'s Dockerfile to apply this.

[dgrove-oss]

LGTM