[jboss-jira] [JBoss JIRA] (AS7-5558) More useful error messages when management operations can't be found
Brian Stansberry created AS7-5558:
-------------------------------------
Summary: More useful error messages when management operations can't be
found
Key: AS7-5558
URL: https://issues.jboss.org/browse/AS7-5558
Project: Application Server 7
Issue Type: Enhancement
Components: Domain Management
Reporter: Brian Stansberry
Fix For: 7.2.0.CR1
When the ModelController attempts to find the OperationStepHandler for a given operation +
address, it needs to handle failure more intelligently. Instead of providing a one-size
fits all exception, it should try to determine why the OSH couldn't be found and
tailor the exception accordingly. Specifically, clarify whether the problem is the address
is invalid or the operation name is invalid, and if it's the address that's
invalid, clarify the point in the resource tree where the address goes wrong.
For example, a user attempting to administer a server that has already been shut down gets
this fairly useless exception:
Error loading VM metrics
Unexpected HTTP response: 500
Request
{
"operation" => "composite",
"address" => [],
"steps" => [
{
"address" => [
("host" => "master"),
("server" => "server-one"),
("core-service" => "platform-mbean"),
("type" => "memory")
],
"operation" => "read-resource",
"include-runtime" => true
},
{
"address" => [
("host" => "master"),
("server" => "server-one"),
("core-service" => "platform-mbean"),
("type" => "threading")
],
"operation" => "read-resource",
"include-runtime" => true
},
{
"address" => [
("host" => "master"),
("server" => "server-one"),
("core-service" => "platform-mbean"),
("type" => "runtime")
],
"operation" => "read-resource",
"include-runtime" => true
},
{
"address" => [
("host" => "master"),
("server" => "server-one"),
("core-service" => "platform-mbean"),
("type" => "operating-system")
],
"operation" => "read-resource",
"include-runtime" => true
}
]
}
Response
Internal Server Error
{
"outcome" => "failed",
"failure-description" => "JBAS010850: No handler for operation
read-resource at address [
(\"host\" => \"master\"),
(\"server\" => \"server-one\"),
(\"core-service\" => \"platform-mbean\"),
(\"type\" => \"memory\")
]",
"rolled-back" => true
}
The reality is no resource exists at address /host=master/server=server-one. The failure
message should emphasize this fact.
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