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Pulsar SQL - Pulsar Presto Connector

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/*
 * 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.pulsar.sql.presto;

import static com.google.common.base.MoreObjects.toStringHelper;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Strings.isNullOrEmpty;
import static java.util.Objects.requireNonNull;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;

/**
 * Represents the basic information about a pulsar topic.
 */
public class PulsarTopicDescription {
    private final String tableName;
    private final String topicName;
    private final String schemaName;

    @JsonCreator
    public PulsarTopicDescription(
            @JsonProperty("tableName") String tableName,
            @JsonProperty("schemaName") String schemaName,
            @JsonProperty("topicName") String topicName) {
        checkArgument(!isNullOrEmpty(tableName), "tableName is null or is empty");
        this.tableName = tableName;
        this.topicName = requireNonNull(topicName, "topicName is null");
        this.schemaName = schemaName;
    }

    @JsonProperty
    public String getTableName() {
        return tableName;
    }

    @JsonProperty
    public String getTopicName() {
        return topicName;
    }

    @JsonProperty
    public String getSchemaName() {
        return schemaName;
    }

    @Override
    public String toString() {
        return toStringHelper(this)
                .add("tableName", tableName)
                .add("topicName", topicName)
                .add("schemaName", schemaName)
                .toString();
    }
}