@POST
@Produces(TxMediaType.PLAIN_MEDIA_TYPE)
public String enlist(
@Context UriInfo info,
@QueryParam("pId") @DefaultValue("") String pId,
@QueryParam("fault") @DefaultValue("") String fault,
@QueryParam("twoPhaseAware") @DefaultValue("true") String twoPhaseAware,
@QueryParam("isVolatile") @DefaultValue("false") String isVolatile,
String enlistUrl)
throws IOException {
Work work = faults.get(pId);
TxSupport txn = new TxSupport();
String txId = enlistUrl.substring(enlistUrl.lastIndexOf('/') + 1);
boolean isTwoPhaseAware = "true".equals(twoPhaseAware);
boolean isVolatileParticipant = "true".equals(isVolatile);
String vRegistration = null; // URI for registering with the volatile phase
String vParticipantLink = null; // URI for handling pre and post 2PC phases
String path = TxSupport.extractUri(info);
if (work == null) {
int id = ++pid;
work =
makeWork(
txn,
path,
String.valueOf(id),
txId,
enlistUrl,
isTwoPhaseAware,
isVolatileParticipant,
null,
fault);
} else {
Work newWork =
makeWork(
txn,
path,
work.id,
txId,
enlistUrl,
isTwoPhaseAware,
isVolatileParticipant,
null,
fault);
newWork.oldState = work.oldState;
newWork.newState = work.newState;
work = newWork;
}
if (enlistUrl.indexOf(',') != -1) {
String[] urls = enlistUrl.split(",");
if (urls.length < 2) throw new WebApplicationException(HttpURLConnection.HTTP_BAD_REQUEST);
enlistUrl = urls[0];
vRegistration = urls[1];
String vParticipant =
new StringBuilder(path)
.append('/')
.append(work.id)
.append('/')
.append(txId)
.append('/')
.append("vp")
.toString();
vParticipantLink =
txn.addLink2(new StringBuilder(), TxLinkNames.VOLATILE_PARTICIPANT, vParticipant, true)
.toString();
}
try {
// enlist TestResource in the transaction as a participant
work.recoveryUrl = txn.enlistParticipant(enlistUrl, work.pLinks);
if (vParticipantLink != null)
txn.enlistVolatileParticipant(vRegistration, vParticipantLink);
} catch (HttpResponseException e) {
throw new WebApplicationException(e.getActualResponse());
}
work.status = TxStatus.TransactionActive.name();
work.start();
faults.put(work.id, work);
return work.id;
}
@SuppressWarnings({"UnusedDeclaration"})
@GET
public String getBasic(
@Context UriInfo info,
@QueryParam("pId") @DefaultValue("") String pId,
@QueryParam("context") @DefaultValue("") String ctx,
@QueryParam("name") @DefaultValue("") String name,
@QueryParam("value") @DefaultValue("") String value,
@QueryParam("query") @DefaultValue("pUrl") String query,
@QueryParam("arg") @DefaultValue("") String arg,
@QueryParam("twoPhaseAware") @DefaultValue("true") String twoPhaseAware,
@QueryParam("isVolatile") @DefaultValue("false") String isVolatileParticipant,
@QueryParam("register") @DefaultValue("true") String register) {
Work work = faults.get(pId);
String res = null;
boolean isVolatile = "true".equals(isVolatileParticipant);
boolean isTwoPhaseAware = "true".equals(twoPhaseAware);
if (name.length() != 0) {
if (value.length() != 0) {
if (work == null) {
work =
makeWork(
new TxSupport(),
TxSupport.extractUri(info),
String.valueOf(++pid),
null,
null,
isTwoPhaseAware,
isVolatile,
null,
null);
work.oldState.put(name, value);
faults.put(work.id, work);
return work.id;
}
work.newState.put(name, value);
}
if (work != null) {
if ("syncCount".equals(name)) res = String.valueOf(work.syncCount);
else if ("commitCnt".equals(name)) res = String.valueOf(work.commitCnt);
else if ("prepareCnt".equals(name)) res = String.valueOf(work.prepareCnt);
else if ("rollbackCnt".equals(name)) res = String.valueOf(work.rollbackCnt);
else if ("commmitOnePhaseCnt".equals(name)) res = String.valueOf(work.commmitOnePhaseCnt);
else if (work.inTxn()) res = work.newState.get(name);
else res = work.oldState.get(name);
}
}
if (work == null) throw new WebApplicationException(HttpURLConnection.HTTP_NOT_FOUND);
if ("move".equals(query))
res = moveParticipant(work, arg, register, isTwoPhaseAware, isVolatile);
else if ("recoveryUrl".equals(query)) res = work.recoveryUrl;
else if ("status".equals(query)) res = work.status;
else if (res == null) res = work.pLinks;
return res; // null will generate a 204 status code (no content)
}
