Github user ptgoetz commented on a diff in the pull request:
https://github.com/apache/incubator-storm/pull/103#discussion_r12394305
--- Diff: storm-core/src/jvm/backtype/storm/utils/Utils.java ---
@@ -301,15 +303,39 @@ public static ComponentCommon
getComponentCommon(StormTopology topology, String
}
public static Integer getInt(Object o) {
- if(o instanceof Long) {
- return ((Long) o ).intValue();
- } else if (o instanceof Integer) {
- return (Integer) o;
- } else if (o instanceof Short) {
- return ((Short) o).intValue();
- } else {
- throw new IllegalArgumentException("Don't know how to convert
" + o + " + to int");
- }
+ Integer result = getInt(o, null);
+ if (null == result) {
+ throw new IllegalArgumentException("Don't know how to convert null
+ to int");
+ }
+ return result;
+ }
+
+ public static Integer getInt(Object o, Integer defaultValue) {
+ if (null == o) {
+ return defaultValue;
+ }
+
+ if(o instanceof Long) {
--- End diff --
Very minor point, but this could probably be tightened to:
```java
if (o instanceof Number) {
return ((Number) o).intValue();
} else {
throw new IllegalArgumentException("Don't know how to convert " + o +
" + to int");
}
```
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