/**
* Asynchronously queries a Couchbase view and returns the result. The result can be accessed
* row-wise via an iterator. This type of query will return the view result but will not get the
* documents associated with each row of the query.
*
* @param view the view to run the query against.
* @param query the type of query to run against the view.
* @return a Future containing the results of the query.
*/
private HttpFuture<ViewResponse> asyncQueryAndExcludeDocs(View view, Query query) {
String uri = view.getURI() + query.toString();
final CountDownLatch couchLatch = new CountDownLatch(1);
final HttpFuture<ViewResponse> crv = new HttpFuture<ViewResponse>(couchLatch, 60000);
final HttpRequest request = new BasicHttpRequest("GET", uri, HttpVersion.HTTP_1_1);
final HttpOperation op =
new NoDocsOperationImpl(
request,
new ViewCallback() {
private ViewResponse vr = null;
@Override
public void receivedStatus(OperationStatus status) {
crv.set(vr, status);
}
@Override
public void complete() {
couchLatch.countDown();
}
@Override
public void gotData(ViewResponse response) {
vr = response;
}
});
crv.setOperation(op);
addOp(op);
return crv;
}
/**
* Asynchronously queries a Couchbase view and returns the result. The result can be accessed
* row-wise via an iterator.
*
* @param view the view to run the query against.
* @param query the type of query to run against the view.
* @return a Future containing the results of the query.
*/
private HttpFuture<ViewResponse> asyncQueryAndReduce(final View view, final Query query) {
if (!view.hasReduce()) {
throw new RuntimeException("This view doesn't contain a reduce function");
}
String uri = view.getURI() + query.toString();
final CountDownLatch couchLatch = new CountDownLatch(1);
final HttpFuture<ViewResponse> crv = new HttpFuture<ViewResponse>(couchLatch, 60000);
final HttpRequest request = new BasicHttpRequest("GET", uri, HttpVersion.HTTP_1_1);
final HttpOperation op =
new ReducedOperationImpl(
request,
new ViewCallback() {
private ViewResponse vr = null;
@Override
public void receivedStatus(OperationStatus status) {
crv.set(vr, status);
}
@Override
public void complete() {
couchLatch.countDown();
}
@Override
public void gotData(ViewResponse response) {
vr = response;
}
});
crv.setOperation(op);
addOp(op);
return crv;
}
/**
* Asynchronously queries a Couchbase view and returns the result. The result can be accessed
* row-wise via an iterator. This type of query will return the view result along with all of the
* documents for each row in the query.
*
* @param view the view to run the query against.
* @param query the type of query to run against the view.
* @return a Future containing the results of the query.
*/
private HttpFuture<ViewResponse> asyncQueryAndIncludeDocs(View view, Query query) {
assert view != null : "Who passed me a null view";
assert query != null : "who passed me a null query";
String viewUri = view.getURI();
String queryToRun = query.toString();
assert viewUri != null : "view URI seems to be null";
assert queryToRun != null : "query seems to be null";
String uri = viewUri + queryToRun;
getLogger().info("lookin for:" + uri);
final CountDownLatch couchLatch = new CountDownLatch(1);
final ViewFuture crv = new ViewFuture(couchLatch, 60000);
final HttpRequest request = new BasicHttpRequest("GET", uri, HttpVersion.HTTP_1_1);
final HttpOperation op =
new DocsOperationImpl(
request,
new ViewCallback() {
private ViewResponse vr = null;
@Override
public void receivedStatus(OperationStatus status) {
if (vr != null) {
Collection<String> ids = new LinkedList<String>();
Iterator<ViewRow> itr = vr.iterator();
while (itr.hasNext()) {
ids.add(itr.next().getId());
}
crv.set(vr, asyncGetBulk(ids), status);
} else {
crv.set(null, null, status);
}
}
@Override
public void complete() {
couchLatch.countDown();
}
@Override
public void gotData(ViewResponse response) {
vr = response;
}
});
crv.setOperation(op);
addOp(op);
return crv;
}