ppkarwasz commented on code in PR #3505:
URL: https://github.com/apache/logging-log4j2/pull/3505#discussion_r1974221590
##########
log4j-core/src/main/java/org/apache/logging/log4j/core/config/builder/impl/DefaultComponentBuilder.java:
##########
@@ -57,43 +59,51 @@ public DefaultComponentBuilder(final CB builder, final
String name, final String
this.value = value;
}
+ /** {@inheritDoc} */
@Override
public T addAttribute(final String key, final boolean value) {
return put(key, Boolean.toString(value));
}
+ /** {@inheritDoc} */
@Override
public T addAttribute(final String key, final Enum<?> value) {
- return put(key, value.name());
+ return put(key,
Optional.ofNullable(value).map(Enum::name).orElse(null));
}
+ /** {@inheritDoc} */
@Override
public T addAttribute(final String key, final int value) {
return put(key, Integer.toString(value));
}
+ /** {@inheritDoc} */
@Override
public T addAttribute(final String key, final Level level) {
- return put(key, level.toString());
+ return put(key,
Optional.ofNullable(level).map(Level::toString).orElse(null));
}
+ /** {@inheritDoc} */
@Override
public T addAttribute(final String key, final Object value) {
- return put(key, value.toString());
+ return put(key,
Optional.ofNullable(value).map(Object::toString).orElse(null));
Review Comment:
```suggestion
return put(key, Objects.toString(value, null));
```
##########
log4j-core/src/main/java/org/apache/logging/log4j/core/config/builder/impl/DefaultComponentBuilder.java:
##########
@@ -57,43 +59,51 @@ public DefaultComponentBuilder(final CB builder, final
String name, final String
this.value = value;
}
+ /** {@inheritDoc} */
Review Comment:
Do we need it? Since we don't add anything, we can leave the Javadoc empty.
##########
log4j-core/src/main/java/org/apache/logging/log4j/core/config/builder/impl/DefaultComponentBuilder.java:
##########
@@ -57,43 +59,51 @@ public DefaultComponentBuilder(final CB builder, final
String name, final String
this.value = value;
}
+ /** {@inheritDoc} */
@Override
public T addAttribute(final String key, final boolean value) {
return put(key, Boolean.toString(value));
}
+ /** {@inheritDoc} */
@Override
public T addAttribute(final String key, final Enum<?> value) {
- return put(key, value.name());
+ return put(key,
Optional.ofNullable(value).map(Enum::name).orElse(null));
Review Comment:
```suggestion
return put(key, value != null ? value.name() : null);
```
We tend to use more primitive expressions in Log4j to keep it garbage-free.
For a configuration it doesn't matter, but you'll find a lot of simple `null`
checks and iterations on arrays in the code.
Personally I wouldn't use `Optional` for a single method call.
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