refactor: parse response by xml path in http collect #5
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👍👍hi, how we use in monitor template yml script, can you give an example? |
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hi, there has some error when mvn build https://github.com/apache/hertzbeat/actions/runs/10579722064/job/29312860776?pr=2593 |
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Code Review
The pull request introduces XML parsing functionality to the hertzbeat collector, which enhances its ability to monitor applications exposing metrics in XML format. The code is generally well-structured and includes error handling. However, there are areas where improvements can be made to enhance robustness and maintainability.
Summary of Findings
- Error Handling in XML Parsing: The current error handling for XML parsing catches all exceptions and sets the code and message in the builder. It might be beneficial to differentiate between different types of exceptions for more granular error reporting.
- Missing XML Path Validation: The code does not validate the XML path provided in
app-springboot3.yml. If an invalid path is provided, the code might not return any values without indicating an error. Consider adding validation or more specific error handling for invalid paths.
Merge Readiness
The pull request is almost ready for merging. Addressing the high severity issue related to XML path validation and considering the medium severity suggestion for more granular error handling would improve the robustness of the code. I am unable to approve this pull request, and recommend that others review and approve this code before merging. At a minimum, the high severity issue should be addressed before merging.
| parseScript: | ||
| - alias: activeThreads | ||
| path: /status/threads/active | ||
| - alias: inactiveThreads | ||
| path: /status/threads/inactive | ||
| - alias: usedMemory | ||
| path: /status/memory/used | ||
| - alias: totalMemory | ||
| path: /status/memory/total |
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The path values under parseScript are used to extract data from the XML response. However, there is no validation to ensure these paths are valid or exist in the XML structure. If a path is incorrect, the collector might not return any values without indicating an error. Consider adding validation or more specific error handling for invalid paths.
| } catch (Exception e) { | ||
| String errorMsg = "Error parsing XML response: " + e.getMessage(); | ||
| log.error(errorMsg, e); | ||
| builder.setCode(CollectRep.Code.FAIL); | ||
| builder.setMsg(errorMsg); | ||
| } |
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Consider catching specific exceptions instead of a general Exception to provide more informative error messages and handle different error scenarios appropriately. For example, SAXException or IOException could be caught separately to provide specific error messages related to XML parsing or IO issues.
} catch (SAXException e) {
String errorMsg = "Error parsing XML: " + e.getMessage();
log.error(errorMsg, e);
builder.setCode(CollectRep.Code.FAIL);
builder.setMsg(errorMsg);
} catch (IOException e) {
String errorMsg = "Error reading XML: " + e.getMessage();
log.error(errorMsg, e);
builder.setCode(CollectRep.Code.FAIL);
builder.setMsg(errorMsg);
} catch (ParserConfigurationException e) {
String errorMsg = "Error configuring XML parser: " + e.getMessage();
log.error(errorMsg, e);
builder.setCode(CollectRep.Code.FAIL);
builder.setMsg(errorMsg);
} catch (Exception e) { // General exception
String errorMsg = "Error parsing XML response: " + e.getMessage();
log.error(errorMsg, e);
builder.setCode(CollectRep.Code.FAIL);
builder.setMsg(errorMsg);
}
What's changed?
Checklist
Add or update API