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Original file line number Diff line number Diff line change
Expand Up @@ -37,15 +37,77 @@ public interface ConfigurationSource {

Optional<String> get(String key);

Optional<Boolean> getBoolean(String key);
default Optional<Boolean> getBoolean(String key) {

Optional<Integer> getInteger(String key);
Optional<String> value = get(key);

Optional<Long> getLong(String key);
return value.map(Boolean::valueOf);
}

default Optional<Integer> getInteger(String key) {

Optional<String> value = get(key);

if (value.isPresent()) {

try {
return Optional.of(Integer.valueOf(value.get()));
} catch (NumberFormatException e) {
return Optional.empty();
}
} else {
return Optional.empty();
}
}

default Optional<Long> getLong(String key) {

Optional<String> value = get(key);

if (value.isPresent()) {

try {
return Optional.of(Long.valueOf(value.get()));
} catch (NumberFormatException e) {
return Optional.empty();
}
} else {
return Optional.empty();
}
}

default Optional<Double> getDouble(String key) {

Optional<String> value = get(key);

if (value.isPresent()) {

try {
return Optional.of(Double.valueOf(value.get()));
} catch (NumberFormatException e) {
return Optional.empty();
}
} else {
return Optional.empty();
}
}

default Optional<Float> getFloat(String key) {

Optional<String> value = get(key);

Optional<Double> getDouble(String key);
if (value.isPresent()) {

Optional<Float> getFloat(String key);
try {
return Optional.of(Float.valueOf(value.get()));
} catch (NumberFormatException e) {
return Optional.empty();
}

} else {
return Optional.empty();
}
}

Optional<Integer> getListSize(String key);

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