All Downloads are FREE. Search and download functionalities are using the official Maven repository.

io.zeebe.test.util.BufferWriterUtil Maven / Gradle / Ivy

/*
 * Copyright © 2017 camunda services GmbH ([email protected])
 *
 * Licensed 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.zeebe.test.util;

import static org.assertj.core.api.Assertions.assertThat;

import org.agrona.concurrent.UnsafeBuffer;
import io.zeebe.util.ReflectUtil;
import io.zeebe.util.buffer.BufferReader;
import io.zeebe.util.buffer.BufferWriter;

public class BufferWriterUtil
{

    public static  void assertEqualFieldsAfterWriteAndRead(final T writer, String... fieldNames)
    {
        final T reader = writeAndRead(writer);

        assertThat(reader)
            .isEqualToComparingOnlyGivenFields(writer, fieldNames);
    }

    public static  T writeAndRead(final T writer)
    {
        @SuppressWarnings("unchecked")
        final T reader = ReflectUtil.newInstance((Class) writer.getClass());

        wrap(writer, reader);

        return reader;
    }


    public static void wrap(BufferWriter writer, BufferReader reader)
    {
        final UnsafeBuffer buffer = new UnsafeBuffer(new byte[writer.getLength()]);
        writer.write(buffer, 0);

        reader.wrap(buffer, 0, buffer.capacity());
    }

    public static  T wrap(BufferWriter writer, Class readerClass)
    {
        final T reader = ReflectUtil.newInstance(readerClass);

        wrap(writer, reader);

        return reader;
    }

}




© 2015 - 2025 Weber Informatics LLC | Privacy Policy