Thursday 23 July 2009

Dummy SMTP Server

Papercut is, in my opinion, one of the best tools for a dummy SMTP server. The interface is nice, clean, and best of all, simple and easy to use. Installation took me a few minutes, and all you need to do next is point your application's smtp server to localhost and you can start testing.

Thursday 14 May 2009

Null Check for Java Bean Properties

I was trying to find out an easy way to check nulls in my Java Bean. There is this filter screen where I need to throw an Exception if all the properties are blank. This is required so that the database don't get hit with "Search All" query. I used BeanUtils from Apache Commons to get all the properties and StringUtils to check if the property is blank. Here is a snippet of the code that I used:


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Map<String, String> map = BeanUtils.describe(searchCriteria);
boolean allBlank = true;
if (map != null) {
for (String key : map.keySet()) {
if ("class".equalsIgnoreCase(key) || "metaClass".equalsIgnoreCase(key))
continue;
if (StringUtils.isNotBlank(map.get(key))) {
LOG.info("key " + key + " is not null");
allBlank = false;
break;
}
}
}
if (allBlank) {
throw new IllegalArgumentException("searchCriteria cannot be blank"));
}
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