/**
* Test for service action.
*
* <p>Replicates the behavior of {@link FBStatisticsManager#getHeaderPage()}.
*/
@Test
public void testStartServiceAction() throws Exception {
FBManager fbManager = createFBManager();
defaultDatabaseSetUp(fbManager);
try (JnaService service = factory.serviceConnect(connectionInfo)) {
service.attach();
ServiceRequestBuffer actionSrb = service.createServiceRequestBuffer();
actionSrb.addArgument(isc_action_svc_db_stats);
actionSrb.addArgument(isc_spb_dbname, getDatabasePath());
actionSrb.addArgument(isc_spb_options, isc_spb_sts_hdr_pages);
service.startServiceAction(actionSrb);
ServiceRequestBuffer infoSrb = service.createServiceRequestBuffer();
infoSrb.addArgument(isc_info_svc_to_eof);
int bufferSize = 1024;
ByteArrayOutputStream bos = new ByteArrayOutputStream();
boolean processing = true;
while (processing) {
byte[] buffer = service.getServiceInfo(null, infoSrb, bufferSize);
switch (buffer[0]) {
case isc_info_svc_to_eof:
int dataLength = iscVaxInteger2(buffer, 1);
if (dataLength == 0) {
if (buffer[3] != isc_info_end) {
throw new SQLException("Unexpected end of stream reached.");
} else {
processing = false;
break;
}
}
bos.write(buffer, 3, dataLength);
break;
case isc_info_truncated:
bufferSize = bufferSize * 2;
break;
case isc_info_end:
processing = false;
break;
}
}
String headerPage = service.getEncoding().decodeFromCharset(bos.toByteArray());
assertThat(
"Expected database header page content",
headerPage,
allOf(
startsWith("\nDatabase"),
containsString("Database header page information"),
endsWith("*END*\n")));
} finally {
defaultDatabaseTearDown(fbManager);
}
}
