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package com.ericsson.ssa.container;
import com.ericsson.ssa.sip.AddressImpl;
import com.ericsson.ssa.sip.Header;
import com.ericsson.ssa.sip.SipServletRequestImpl;
import com.ericsson.ssa.sip.SipServletResponseImpl;
import com.ericsson.ssa.sip.dns.TargetResolver;
import com.ericsson.ssa.sip.dns.TargetTuple;
/**
* Implementation of <code>com.ericsson.ssa.container.SipParserErrorHandler</code> that
* writes a terminating response on <code>handleError</code>.
*
* @author elnsbur,qmaghes
* @since Apr 11, 2006
*
*/
public class SipParserErrorHandlerImpl extends SipParserErrorHandler {
//Made this explicit for LinkBase now. but could be abstracted to Dispatcher.
public SipParserErrorHandlerImpl(LinkBase base) {
super(base);
}
public @Override
void handleError(SipServletRequestImpl req, int code, String errorStr) {
if (getErrorResponseEnabled()) {
req.pushTransactionDispatcher(getMyDispatcher());
SipServletResponseImpl resp = req.createResponseImpl(code, errorStr);
// Add to tag if there is a to header and there is not yet a to tag
if ((resp.getHeader(Header.TO) != null) && (resp.getToImpl() != null) &&
(resp.getToImpl().getParameter(AddressImpl.TAG_PARAM) == null)) {
resp.createTag(Header.TO);
}
try {
TargetResolver tr = TargetResolver.getInstance();
TargetTuple tt = tr.resolveResponse(resp);
resp.setRemote(tt);
} catch (Exception e) {
e.printStackTrace();
// Fallback if resolve failed, possibly because of Via missing or not parsable.
resp.setRemote(req.getRemote());
}
resp.popDispatcher().dispatch(resp);
}
}
}