wuchong commented on a change in pull request #10563: [FLINK-15232][table]
Message of NoMatchingTableFactoryException should tell users what's wrong
URL: https://github.com/apache/flink/pull/10563#discussion_r357515041
##########
File path:
flink-table/flink-table-common/src/main/java/org/apache/flink/table/api/NoMatchingTableFactoryException.java
##########
@@ -58,24 +62,32 @@ public NoMatchingTableFactoryException(
Class<?> factoryClass,
List<TableFactory> factories,
Map<String, String> properties) {
+ this(message, null, factoryClass, factories, properties, null);
+ }
- this(message, factoryClass, factories, properties, null);
+ public NoMatchingTableFactoryException(
+ String message,
+ String matchCandidatesMessage,
+ Class<?> factoryClass,
+ List<TableFactory> factories,
+ Map<String, String> properties) {
+ this(message, matchCandidatesMessage, factoryClass, factories,
properties, null);
}
@Override
public String getMessage() {
+ String matchCandidatesString = matchCandidatesMessage == null ?
+ "" :
+ "The match candidates: \n" +
matchCandidatesMessage + "\n\n";
return String.format(
"Could not find a suitable table factory for '%s'
in\nthe classpath.\n\n" +
- "Reason: %s\n\n" +
+ "Reason: %s\n\n" + matchCandidatesString +
"The following properties are
requested:\n%s\n\n" +
"The following factories have been
considered:\n%s",
factoryClass.getName(),
message,
DescriptorProperties.toString(properties),
- String.join(
- "\n",
- factories.stream().map(p ->
p.getClass().getName()).collect(Collectors.toList())
- )
+ factories.stream().map(p ->
p.getClass().getName()).collect(Collectors.joining("\n"))
Review comment:
Indent.
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