public class StandardCallingConvention extends Manageable
Manageable.State| Modifier and Type | Field and Description |
|---|---|
protected static String |
RESPONSE_CONTENT_TYPE
The content type of the HTTP response.
|
protected static String |
RESPONSE_ENCODING
The response encoding format.
|
BOOTSTRAPPED, BOOTSTRAPPING, DEINITIALIZING, INITIALIZING, UNUSABLE, USABLE| Constructor and Description |
|---|
StandardCallingConvention() |
| Modifier and Type | Method and Description |
|---|---|
protected FunctionRequest |
convertRequestImpl(HttpServletRequest httpRequest)
Converts an HTTP request to a XINS request (implementation method).
|
protected void |
convertResultImpl(FunctionResult xinsResult,
HttpServletResponse httpResponse,
Map<String,Object> backpack)
Converts a XINS result to an HTTP response (implementation method).
|
protected API |
getAPI()
Determines the current API.
|
protected String[] |
getSupportedMethods()
Determines which HTTP methods are supported for function invocations.
|
protected String[] |
getSupportedMethods(HttpServletRequest request)
Determines which HTTP methods are supported for function invocations,
for the specified request.
|
protected boolean |
matches(HttpServletRequest httpRequest)
Checks if the specified request can be handled by this calling
convention.
|
protected Element |
parseXMLRequest(HttpServletRequest httpRequest)
Parses XML from the specified HTTP request and checks that the content
type is correct.
|
protected Element |
parseXMLRequest(HttpServletRequest httpRequest,
boolean checkType)
Parses XML from the specified HTTP request and optionally checks that
the content type is correct.
|
assertUsable, bootstrap, bootstrapImpl, deinit, deinitImpl, getState, init, initImpl, isBootstrapped, isUsableprotected static final String RESPONSE_ENCODING
protected static final String RESPONSE_CONTENT_TYPE
protected boolean matches(HttpServletRequest httpRequest)
This method will not throw any exception.
httpRequest - the HTTP request to investigate, cannot be null.true if this calling convention is possibly
able to handle this request, or false if it
definitely not able to handle this request.protected FunctionRequest convertRequestImpl(HttpServletRequest httpRequest) throws InvalidRequestException, FunctionNotSpecifiedException
httpRequest argument is not
null.httpRequest - the HTTP request, will not be null.null.InvalidRequestException - if the request is considerd to be invalid.FunctionNotSpecifiedException - if the request does not indicate the name of the function to execute.protected void convertResultImpl(FunctionResult xinsResult, HttpServletResponse httpResponse, Map<String,Object> backpack) throws IOException
xinsResult - the XINS result object that should be converted to an HTTP response,
will not be null.httpResponse - the HTTP response object to configure, will not be null.backpack - the request backpack, will not be null.IOException - if calling any of the methods in httpResponse causes an
I/O error.protected final API getAPI()
API, never null.protected String[] getSupportedMethods()
Each String in the returned array must be one
supported method.
The returned array must not be null, it must only
contain valid HTTP method names, so they may not contain whitespace, for
example. Duplicates will be ignored. HTTP method names must be in uppercase.
There must be at least one HTTP method supported for function invocations.
Note that OPTIONS must not be returned by this method, as it is not an HTTP method that can ever be used to invoke a XINS function.
HTTP OPTIONS requests are treated differently. For the path
* the capabilities of the whole server are returned. For other
paths, the appropriate calling convention is determined, after which the
set of supported HTTP methods is returned to the called.
String array, must
not be null.protected String[] getSupportedMethods(HttpServletRequest request)
Each String in the returned array must be one
supported method.
The returned array may be null. If it is not, then the
returned array must only contain valid HTTP method names, so they may
not contain whitespace, for example. HTTP method names must be in uppercase.
There must be at least one HTTP method supported for function invocations.
Note that OPTIONS must not be returned by this method, as it is not an HTTP method that can ever be used to invoke a XINS function.
The set of supported methods must be a subset of the set returned by
getSupportedMethods().
The default implementation of this method returns the set returned by
getSupportedMethods().
request - the request to determine the supported methods for.String array, can be null.protected Element parseXMLRequest(HttpServletRequest httpRequest) throws IllegalArgumentException, InvalidRequestException
This method uses a cache to optimize performance if either of the
parseXMLRequest methods is called multiple times for the
same request.
Calling this method is equivalent with calling
parseXMLRequest(HttpServletRequest,boolean) with the
checkType argument set to true.
httpRequest - the HTTP request, cannot be null.null.IllegalArgumentException - if httpRequest == null.InvalidRequestException - if the HTTP request cannot be read or cannot be parsed correctly.protected Element parseXMLRequest(HttpServletRequest httpRequest, boolean checkType) throws IllegalArgumentException, InvalidRequestException
Since XINS 1.4.0, this method uses a cache to optimize performance if
either of the parseXMLRequest methods is called multiple
times for the same request.
httpRequest - the HTTP request, cannot be null.checkType - flag indicating whether this method should check that the content
type of the request is text/xml.null.IllegalArgumentException - if httpRequest == null.InvalidRequestException - if the HTTP request cannot be read or cannot be parsed correctly.See http://www.xins.org/.