io.sirix.page.PagePersister Maven / Gradle / Ivy
/**
* Copyright (c) 2011, University of Konstanz, Distributed Systems Group All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted
* provided that the following conditions are met: * Redistributions of source code must retain the
* above copyright notice, this list of conditions and the following disclaimer. * Redistributions
* in binary form must reproduce the above copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other materials provided with the distribution.
* * Neither the name of the University of Konstanz nor the names of its contributors may be used to
* endorse or promote products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package io.sirix.page;
import net.openhft.chronicle.bytes.BytesIn;
import net.openhft.chronicle.bytes.BytesOut;
import org.checkerframework.checker.nullness.qual.NonNull;
import io.sirix.api.PageReadOnlyTrx;
import io.sirix.page.interfaces.Page;
import java.io.IOException;
/**
* Persists pages on secondary storage.
*
* @author Johannes Lichtenberger, University of Konstanz
*
*/
public final class PagePersister {
/**
* Deserialize page.
*
* @param source source to read from
* @param pageReadTrx instance of class, which implements the {@link PageReadOnlyTrx} interface
* @return {@link Page} instance
* @throws IOException if an exception during deserialization of a page occurs
*/
public @NonNull Page deserializePage(final PageReadOnlyTrx pageReadTrx, final BytesIn source,
final SerializationType type) throws IOException {
return PageKind.getKind(source.readByte()).deserializePage(pageReadTrx, source, type);
}
/**
* Serialize page.
*
* @param sink output sink
* @param page the {@link Page} to serialize
* @throws IOException if an exception during serialization of a page occurs
*/
public void serializePage(final PageReadOnlyTrx pageReadTrx, final BytesOut sink, final Page page,
final SerializationType type) throws IOException {
PageKind.getKind(page.getClass()).serializePage(pageReadTrx, sink, page, type);
}
}