
![image](https://user-images.githubusercontent.com/12162539/50417924-d6cc2b80-0863-11e9-860f-bf9d132db570.png)

"ls"
})
public class Ls implements BaseCommand {
    @Override
    public String execute(CommandContext commandContext, String[] args) {
        StringBuilder result = new StringBuilder();
        result.append(listProvider());
        result.append(listConsumer());
        return result.toString();
    }
    public String listProvider() {
        StringBuilder stringBuilder = new StringBuilder();
        stringBuilder.append("As Provider side:\n");
        Collection<ProviderModel> ProviderModelList = ApplicationModel.allProviderModels();
        TTable tTable = new TTable(new TTable.ColumnDefine[]{
                new TTable.ColumnDefine(TTable.Align.MIDDLE),
                new TTable.ColumnDefine(TTable.Align.MIDDLE)