view audioDBws.h @ 548:e18843dc0aea

Implement a rudimentary API for audioDB::liszt

The API is rudimentary because we've dropped support for the incremental
retrieval of tracks and their number of vectors (at the API level; the
SOAP and command-line support is still there -- no changes should be
visible).  This is potentially bad for the large-scale databases, of
course; one million tracks will take of the order of 16MB of RAM, more
if I'm unlucky about how std::string.c_str() is implemented.

Both this liszt operation and querying (and sampling, forthcoming...)
would benefit from a `cursor-like' interface to retrieval results: for
an API like that, instead of getting a struct with the data there, you
get a cookie with which you can ask the database for successive results.
This would be neat for all sorts of reasons.  In the meantime, at least
this change fixes SOAP memory leaks related to liszt.

Make liszt.o part of LIBOBJS rather than ordinary OBJS, so that the
liszt functionality is actually compiled into the library.

Add a test for this library functionality; also modify the command-line
test file to run the SOAP server on its own port.

// audioDBws.h -- web services interface to audioDB
//
//FIXME: this hard-coding of the service location might be right for
//its internal use at Goldsmiths (for now) but really isn't in
//general.  Find a way to bind this later (at install time?  Or maybe
//just require that the installer edit the resulting wsdl file?)
//
//gsoap adb service location: http://gibbons.doc.gold.ac.uk:20703/

typedef int xsd__int;
typedef double xsd__double;
typedef char* xsd__string;

// Supports result lists of arbitrary length
struct adb__queryResult{
  int __sizeRlist;
  char **Rlist; // Maximum size of result list
  int __sizeDist;  
  double *Dist;
  int __sizeQpos;  
  unsigned int *Qpos;
  int __sizeSpos;
  unsigned int *Spos;
};

struct adb__statusResult {
  unsigned numFiles;
  unsigned dim;
  unsigned length;
  unsigned dudCount;
  unsigned nullCount;
  unsigned flags;
};

struct adb__statusResponse {
  struct adb__statusResult result;
};

struct adb__queryResponse {
  struct adb__queryResult result;
};

struct adb__lisztResult {
  int __sizeRkey;
  char **Rkey;
  int __sizeRlen;
  unsigned int *Rlen;
};

struct adb__queryVector {
  int dim; // dimensionality of the feature (d)
  int __sizev; // l x d :
  double *v;   // pointer to query data
  int __sizep;
  double *p;
};

struct adb__lisztResponse {
  struct adb__lisztResult result;
};

// Print the status of an existing adb database
int adb__status(xsd__string dbName, struct adb__statusResponse &adbStatusResponse);

// Print the status of an existing adb database
int adb__liszt(xsd__string dbName, xsd__int lisztOffset, xsd__int lisztLength, struct adb__lisztResponse &adbLisztResponse);

// Query an existing adb database
int adb__query(xsd__string dbName, xsd__string qKey, xsd__string keyList, xsd__string timesFileName, xsd__string powerFileName, xsd__int qType, xsd__int qPos, xsd__int pointNN, xsd__int segNN, xsd__int segLen, xsd__double radius, xsd__double absolute_threshold, xsd__double relative_threshold, xsd__int exhaustive, xsd__int lsh_exact, xsd__int no_unit_norming, struct adb__queryResponse &adbQueryResponse);

int adb__sequenceQueryByKey(xsd__string dbName,xsd__string trackKey, xsd__string featureFileName, xsd__int queryType,xsd__string trackFileName,xsd__string timesFileName,xsd__int queryPoint,xsd__int pointNN,xsd__int trackNN,xsd__int sequenceLength,xsd__double radius,xsd__double absolute_threshold,xsd__int usingQueryPoint,xsd__int lsh_exact, xsd__int no_unit_norming, struct adb__queryResponse &adbQueryResponse);

// Query an audioDB database by vector (serialized), queryKey/featureFileName is here replaced with qVector
int adb__shingleQuery(xsd__string dbName, struct adb__queryVector qVector, xsd__string keyList, xsd__string timesFileName, xsd__int queryType, xsd__int queryPos, xsd__int pointNN, xsd__int trackNN, xsd__int sequenceLength, xsd__double radius, xsd__double absolute_threshold, xsd__double relative_threshold, xsd__int exhaustive, xsd__int lsh_exact, xsd__int no_unit_norming, struct adb__queryResponse &adbQueryResponse);