/*
* 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.beam.runners.direct;
import java.util.ArrayList;
import java.util.Collection;
/**
* Utility methods for interacting with {@link DoFnLifecycleManager DoFnLifecycleManagers}.
*/
class DoFnLifecycleManagers {
private DoFnLifecycleManagers() {
/* Do not instantiate */
}
static void removeAllFromManagers(Iterable<DoFnLifecycleManager> managers) throws Exception {
Collection<Exception> thrown = new ArrayList<>();
for (DoFnLifecycleManager manager : managers) {
thrown.addAll(manager.removeAll());
}
if (!thrown.isEmpty()) {
Exception overallException = new Exception("Exceptions thrown while tearing down DoFns");
for (Exception e : thrown) {
overallException.addSuppressed(e);
}
throw overallException;
}
}
}