parsingAtTheEdge.java

// Step 1: Take a query param representing a company name / member id pair and parse it
// example: context=Pair(linkedin,456)
Pair<String, Long> companyMember = parseQueryParam("context");
// this should throw an exception if malformed

// Step 2: Do all the stuff in your application
// MOST if not all of your code should live in this area

// Step 3: Convert the parameter back into a String at the very end if necessary
String redirectLink = serializeQueryParam("context");