/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.kafka.test;
import org.apache.kafka.streams.errors.InvalidStateStoreException;
import org.apache.kafka.streams.processor.StateStore;
import org.apache.kafka.streams.state.QueryableStoreType;
import org.apache.kafka.streams.state.internals.StateStoreProvider;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class StateStoreProviderStub implements StateStoreProvider {
private final Map<String, StateStore> stores = new HashMap<>();
private final boolean throwException;
public StateStoreProviderStub(final boolean throwException) {
this.throwException = throwException;
}
@SuppressWarnings("unchecked")
@Override
public <T> List<T> stores(final String storeName, final QueryableStoreType<T> queryableStoreType) {
if (throwException) {
throw new InvalidStateStoreException("store is unavailable");
}
if (stores.containsKey(storeName) && queryableStoreType.accepts(stores.get(storeName))) {
return (List<T>) Collections.singletonList(stores.get(storeName));
}
return Collections.emptyList();
}
public void addStore(final String storeName,
final StateStore store) {
stores.put(storeName, store);
}
}