io.streamthoughts.azkarra.api.streams.errors.DelegatingUncaughtExceptionHandler Maven / Gradle / Ivy

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/*
 * Copyright 2019-2020 StreamThoughts.
 *
 * 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 io.streamthoughts.azkarra.api.streams.errors;

import io.streamthoughts.azkarra.api.streams.KafkaStreamsContainer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Objects;

/**
 * This class can be used to delegate {@link Thread.UncaughtExceptionHandler} exception handling to an
 * a given {@link StreamThreadExceptionHandler} implementation.
 *
 * @see StreamThreadExceptionHandler
 */
public class DelegatingUncaughtExceptionHandler implements Thread.UncaughtExceptionHandler {

    private static final Logger LOG = LoggerFactory.getLogger(DelegatingUncaughtExceptionHandler.class);

    private final KafkaStreamsContainer container;
    private final StreamThreadExceptionHandler delegate;

    public DelegatingUncaughtExceptionHandler(final KafkaStreamsContainer container,
                                              final StreamThreadExceptionHandler handler) {
        this.container = Objects.requireNonNull(container, "container cannot be null");
        this.delegate = Objects.requireNonNull(handler, "handler cannot be null");
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void uncaughtException(final Thread t, final Throwable e) {
        LOG.debug("Catch uncaught exception, executing handler: {}", delegate.getClass());
        delegate.handle(container, t, e);
    }
}