flink-connector-activemq/src/main/java/org/apache/flink/streaming/connectors/activemq/AMQSinkConfig.java

/*
 * 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.flink.streaming.connectors.activemq;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.flink.streaming.util.serialization.SerializationSchema;
import org.apache.flink.util.Preconditions;

/**
 * Immutable configuration for AMQSink
 * @param <IN> type of input messages in configured sink
 */
public class AMQSinkConfig<IN> {
    private final ActiveMQConnectionFactory connectionFactory;
    private final String queueName;
    private final SerializationSchema<IN> serializationSchema;
    private final boolean persistentDelivery;
    private final DestinationType destinationType;

    public AMQSinkConfig(ActiveMQConnectionFactory connectionFactory, String queueName,
                        SerializationSchema<IN> serializationSchema, boolean persistentDelivery,
                        DestinationType destinationType) {
        this.connectionFactory = Preconditions.checkNotNull(connectionFactory, "connectionFactory not set");
        this.queueName = Preconditions.checkNotNull(queueName, "destinationName not set");
        this.serializationSchema = Preconditions.checkNotNull(serializationSchema, "serializationSchema not set");
        this.persistentDelivery = persistentDelivery;
        this.destinationType = Preconditions.checkNotNull(destinationType, "destinationType");
    }

    public ActiveMQConnectionFactory getConnectionFactory() {
        return connectionFactory;
    }

    public String getDestinationName() {
        return queueName;
    }

    public SerializationSchema<IN> getSerializationSchema() {
        return serializationSchema;
    }

    public boolean isPersistentDelivery() {
        return persistentDelivery;
    }

    public DestinationType getDestinationType() {
        return destinationType;
    }


    /**
     * Builder for {@link AMQSinkConfig}
     * @param <IN> type of input messages in configured sink
     */
    public static class AMQSinkConfigBuilder<IN> {
        private ActiveMQConnectionFactory connectionFactory;
        private String destinationName;
        private SerializationSchema<IN> serializationSchema;
        private boolean persistentDelivery;
        private DestinationType destinationType = DestinationType.QUEUE;

        public AMQSinkConfigBuilder<IN> setConnectionFactory(ActiveMQConnectionFactory connectionFactory) {
            this.connectionFactory = Preconditions.checkNotNull(connectionFactory);
            return this;
        }

        public AMQSinkConfigBuilder<IN> setDestinationName(String queueName) {
            this.destinationName = Preconditions.checkNotNull(queueName);
            return this;
        }

        public AMQSinkConfigBuilder<IN> setSerializationSchema(SerializationSchema<IN> serializationSchema) {
            this.serializationSchema = Preconditions.checkNotNull(serializationSchema);
            return this;
        }

        public AMQSinkConfigBuilder<IN> setPersistentDelivery(boolean persistentDelivery) {
            this.persistentDelivery = persistentDelivery;
            return this;
        }

        public AMQSinkConfigBuilder<IN> setDestinationType(DestinationType destinationType) {
            this.destinationType = Preconditions.checkNotNull(destinationType);
            return this;
        }

        public AMQSinkConfig<IN> build() {
            return new AMQSinkConfig<IN>(connectionFactory, destinationName, serializationSchema, persistentDelivery, destinationType);
        }

    }
}