/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.keycloak.testsuite.util.cli;
import org.keycloak.models.KeycloakSession;
import org.keycloak.models.KeycloakSessionFactory;
import org.keycloak.models.KeycloakSessionTask;
import org.keycloak.models.utils.KeycloakModelUtils;
/**
* @author <a href="mailto:mposolda@redhat.com">Marek Posolda</a>
*/
class BatchTaskRunner {
static void runInBatches(int first, int count, int batchCount, KeycloakSessionFactory sessionFactory, BatchTask batchTask) {
final StateHolder state = new StateHolder();
state.firstInThisBatch = first;
state.remaining = count;
state.countInThisBatch = Math.min(batchCount, state.remaining);
while (state.remaining > 0) {
KeycloakModelUtils.runJobInTransaction(sessionFactory, new KeycloakSessionTask() {
@Override
public void run(KeycloakSession session) {
batchTask.run(session, state.firstInThisBatch, state.countInThisBatch);
}
});
// update state
state.firstInThisBatch = state.firstInThisBatch + state.countInThisBatch;
state.remaining = state.remaining - state.countInThisBatch;
state.countInThisBatch = Math.min(batchCount, state.remaining);
}
}
private static class StateHolder {
int firstInThisBatch;
int countInThisBatch;
int remaining;
};
@FunctionalInterface
public interface BatchTask {
void run(KeycloakSession session, int firstInThisIteration, int countInThisIteration);
}
}