com.amazon.ionhiveserde.configuration.FailOnOverflowConfig Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of ion-hive3-serde Show documentation

An Apache Hive SerDe (short for serializer/deserializer) for the Ion file format.

There is a newer version: 1.2.0

/*
 * Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * or in the "license" file accompanying this file. This file 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 com.amazon.ionhiveserde.configuration;

import com.amazon.ionhiveserde.configuration.source.RawConfiguration;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Encapsulates the fail_on_overflow configuration.
 */
class FailOnOverflowConfig {

    private static final String FAIL_ON_OVERFLOW_KEY_FORMAT = "ion.%s.fail_on_overflow";
    private static final String DEFAULT_FAIL_ON_KEY = "ion.fail_on_overflow";
    private static final String DEFAULT_FAIL_ON_OVERFLOW = "true";

    private final Map configByColumnName;
    private final boolean defaultValue;


    /**
     * Constructor.
     *
     * @param configuration raw configuration source.
     * @param columnNames table column names.
     */
    FailOnOverflowConfig(final RawConfiguration configuration, final List columnNames) {
        configByColumnName = new HashMap<>();

        final String defaultValue = configuration.getOrDefault(DEFAULT_FAIL_ON_KEY, DEFAULT_FAIL_ON_OVERFLOW);
        this.defaultValue = Boolean.valueOf(defaultValue);

        for (String columnName : columnNames) {
            final String columnFailOnOverflowValue = configuration.getOrDefault(
                String.format(FAIL_ON_OVERFLOW_KEY_FORMAT, columnName),
                defaultValue);

            configByColumnName.put(columnName, Boolean.valueOf(columnFailOnOverflowValue));
        }
    }

    /**
     * Return if the column is configured to fail when detecting an overflow.
     *
     * @return true if the column is configured to fail on overflow, false otherwise.
     */
    boolean failOnOverflowFor(final String columnName) {
        return configByColumnName.getOrDefault(columnName, defaultValue);
    }
}