org.apache.kafka.streams.internals.ApiUtils Maven / Gradle / Ivy
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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.kafka.streams.internals;
import org.apache.kafka.streams.kstream.ValueTransformerSupplier;
import java.time.Duration;
import java.time.Instant;
import java.util.function.Supplier;
import static java.lang.String.format;
public final class ApiUtils {
private static final String MILLISECOND_VALIDATION_FAIL_MSG_FRMT = "Invalid value for parameter \"%s\" (value was: %s). ";
private static final String VALIDATE_MILLISECOND_NULL_SUFFIX = "It shouldn't be null.";
private static final String VALIDATE_MILLISECOND_OVERFLOW_SUFFIX = "It can't be converted to milliseconds.";
private ApiUtils() {
}
/**
* Validates that milliseconds from {@code duration} can be retrieved.
* @param duration Duration to check.
* @param messagePrefix Prefix text for an error message.
* @return Milliseconds from {@code duration}.
*/
public static long validateMillisecondDuration(final Duration duration, final String messagePrefix) {
try {
if (duration == null) {
throw new IllegalArgumentException(messagePrefix + VALIDATE_MILLISECOND_NULL_SUFFIX);
}
return duration.toMillis();
} catch (final ArithmeticException e) {
throw new IllegalArgumentException(messagePrefix + VALIDATE_MILLISECOND_OVERFLOW_SUFFIX, e);
}
}
/**
* Validates that milliseconds from {@code instant} can be retrieved.
* @param instant Instant to check.
* @param messagePrefix Prefix text for an error message.
* @return Milliseconds from {@code instant}.
*/
public static long validateMillisecondInstant(final Instant instant, final String messagePrefix) {
try {
if (instant == null) {
throw new IllegalArgumentException(messagePrefix + VALIDATE_MILLISECOND_NULL_SUFFIX);
}
return instant.toEpochMilli();
} catch (final ArithmeticException e) {
throw new IllegalArgumentException(messagePrefix + VALIDATE_MILLISECOND_OVERFLOW_SUFFIX, e);
}
}
/**
* Generates the prefix message for validateMillisecondXXXXXX() utility
* @param value Object to be converted to milliseconds
* @param name Object name
* @return Error message prefix to use in exception
*/
public static String prepareMillisCheckFailMsgPrefix(final Object value, final String name) {
return format(MILLISECOND_VALIDATION_FAIL_MSG_FRMT, name, value);
}
/**
* @throws IllegalArgumentException if the same instance is obtained each time
*/
public static void checkSupplier(final Supplier> supplier) {
if (supplier.get() == supplier.get()) {
final String supplierClass = supplier.getClass().getName();
throw new IllegalArgumentException(String.format("%s generates single reference." +
" %s#get() must return a new object each time it is called.", supplierClass, supplierClass));
}
}
/**
* @throws IllegalArgumentException if the same instance is obtained each time
*/
public static void checkSupplier(final ValueTransformerSupplier supplier) {
if (supplier.get() == supplier.get()) {
final String supplierClass = supplier.getClass().getName();
throw new IllegalArgumentException(String.format("%s generates single reference." +
" %s#get() must return a new object each time it is called.", supplierClass, supplierClass));
}
}
}