[STANBOL-1349] Report BAD_REQUEST for Enhancer requests using "application/x-www-form-urlencoded"

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.12.0
• Fix Version/s: 1.0.0, 0.12.1
• Component/s: Enhancer
• Assignee: Rupert Westenthaler
• Reporter: Rupert Westenthaler
• Created: 28/May/14 09:54
• Updated: 28/May/14 14:34
• Resolved: 28/May/14 14:34

Description

Sending POST requests to the Stanbol Enhancer without specifying the Content-Type header will likely result in "application/x-www-form-urlencoded" to be used. As this header is also used by the Stanbol default UI the resulting exception is very wired

java.lang.IllegalArgumentException: The parsed byte array MUST NOT be NULL!
	org.apache.stanbol.enhancer.servicesapi.impl.ByteArraySource.<init>(ByteArraySource.java:98)
	org.apache.stanbol.enhancer.servicesapi.impl.ByteArraySource.<init>(ByteArraySource.java:65)
	org.apache.stanbol.enhancer.servicesapi.impl.StringSource.<init>(StringSource.java:47)
	org.apache.stanbol.enhancer.servicesapi.impl.StringSource.<init>(StringSource.java:37)
	org.apache.stanbol.enhancer.jersey.resource.AbstractEnhancerUiResource.enhanceFromForm(AbstractEnhancerUiResource.java:120)

This issue will catch such requests and return a BAD_REQUEST with a description pointing to the missing "Content-Type" header