...
| Anchor | ||||
|---|---|---|---|---|
|
Routing Configuration
The JsonCBR component can be configured using its Custom Property Sheet (CPS) wizard.
Figure 1: JsonPath(s) to be evaluated on the input messages
In the JsonCBR Configuration pane, the Add button helps to add configuration properties, the Remove button helps to remove the selected configuration property and Remove All helps to clear the entire configuration.
JsonPath
JsonPaths, based on which the routing is done, can be configured in JsonCBR Configuration Page. A valid JsonPath expression can be typed directly into the table.
...
| Comparison of the JSONPath syntax elements with its XPath counterparts | ||
| XPath | JSONPath | Description |
| / | $ | the root object/element |
| .. | n/a | parent operator |
| // | .. | recursive descent. JSONPath borrows this syntax from E4X. |
| * | * | wildcard. All objects/elements regardless of their names. |
| @ | n/a | attribute access. JSON structures don't have attributes. |
| [] | [] | subscript operator. XPath uses it to iterate over element collections and for predicates. In Javascript and JSON, it is the native array operator. |
| | | [,] | Union operator in XPath results in a combination of node sets. JSONPath allows alternate names or array indices as a set. |
| n/a | [start:end:step] | array slice operator borrowed from ES4. |
| [] | ?() | applies a filter (script) expression. |
| n/a | () | script expression, using the underlying script engine. |
| () | n/a | grouping in XPath |
| Tip |
|---|
For more information on the XPath for Json, please refer to the article at http://goessner.net/articles/JsonPath.. |
Operators
This field includes boolean operators like ==, !=, <, >, <=, >=, EXISTS, NONEXISTENT.
...
This field can be any of these types: Long, Integer, Double, String, Boolean, BigInteger, BigDecimal, and JsonPath. If a "$" precedes any value, then it is treated as a JsonPath. In this case, the values of the two JsonPaths are compared for evaluating the expression.
Error Handling Configuration
Allows configuring actions to be taken when an exception occurs during the execution. Following are the configuration options:
- JMS Error
- Response Generation Error
- Request Processing Error
- Invalid Request Error
| Tip |
|---|
For descriptions, refer to the Error Handling section in the Common Configurations page. |
Functional Demonstration
Scenario
...