Support routeConfiguration

[igarashitm]

Please describe the feature that you want to propose

We're missing several configurations support such as routeConfiguration, restConfiguration, errorHandler, onException and etc.
https://github.com/apache/camel/blob/2e7578c9426bb327e0ca8c43b4a93063d70b946e/dsl/camel-yaml-dsl/camel-yaml-dsl/src/generated/resources/schema/camelYamlDsl.json#L15611-L15649

routeTemplate and templatedRoute would be another visual entities to show as a diagram. There might be more that has steps inside.

Update

This issue now focuses on routeConfiguration. Filed separate issues for others. Since routeConfiguration has errorHandler and onException as its property, #560 and #561 are little bit less important once routeConfiguration is supported.

• Support Camel Route errorHandler #560
• Support Camel Route onException #561
• Support restConfiguration #562
• Support routeTemplate and templatedRoute #563

Update 2

Putting on hold. Not a few of routeConfiguration properties have steps inside, therefore they need flow visualization. We need to figure out how to visualize those sub routes configuration in the canvas.

• intercept
• interceptFrom
• interceptSendToEndpoint
• onCompletion
• onException

An example route

- routeConfiguration:
    errorHandler:
      defaultErrorHandler:
        level: ERROR
    intercept:
      - intercept:
          steps:
            - log: "intercept1"
      - intercept:
          steps:
            - log: "intercept2"
    interceptFrom:
      - interceptFrom:
          uri: "direct:start1"
          steps:
            - log: "interceptFrom1"
      - interceptFrom:
          uri: "direct:start2"
          steps:
            - log: "interceptFrom2"
    interceptSendToEndpoint:
      - interceptSendToEndpoint:
          uri: "direct:start1"
          steps:
            - log: "interceptSendToEndpoint1"
      - interceptSendToEndpoint:
          uri: "direct:start2"
          steps:
            - log: "interceptSendToEndpoint2"
    onCompletion:
      - onCompletion:
          steps:
            - log: "onCompletion1"
      - onCompletion:
          steps:
            - log: "onCompletion2"
    onException:
      - onException:
          handled:
            constant: "true"
          exception:
            - "java.lang.Exception"
          steps:
            - log: "onException1"
      - onException:
          handled:
            constant: "true"
          exception:
            - "java.io.IOException"
          steps:
            - log: "onException2"

- route:
    from:
      uri: "timer:foo"
      steps:
        - log: "bar"
        - to: "direct:start1"
        - to: "direct:start2"
- route:
    from:
      uri: "direct:start1"
      steps:
        - log: "direct-start1"
- route:
    from:
      uri: "direct:start2"
      steps:
        - log: "direct-start2"

[igarashitm]

Also note that in the schema, errorHandler is a single object while others (intercept, interceptFrom, interceptSendToEndpoint, onCompletion, onException) are an array. What should we do if both of /errorHandler and /routeConfiguration/errorHandler are already defined?

[lordrip]

Configuring route aspects through the CanvasForm is supported via #768