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/*
* Copyright (C) 2008, Robin Rosenberg <robin.rosenberg@dewire.com>
* Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org> and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.internal.storage.file;
import java.io.IOException;
import java.io.OutputStream;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.transport.PackedObjectInfo;
import org.eclipse.jgit.util.NB;
/**
* Creates the version 1 (old style) pack table of contents files.
*
* @see BasePackIndexWriter
* @see PackIndexV1
*/
class PackIndexWriterV1 extends BasePackIndexWriter {
static boolean canStore(PackedObjectInfo oe) {
// We are limited to 4 GB per pack as offset is 32 bit unsigned int.
//
return oe.getOffset() >>> 1 < Integer.MAX_VALUE;
}
PackIndexWriterV1(final OutputStream dst) {
super(dst);
}
@Override
protected void writeImpl() throws IOException {
writeFanOutTable();
for (PackedObjectInfo oe : entries) {
if (!canStore(oe))
throw new IOException(JGitText.get().packTooLargeForIndexVersion1);
NB.encodeInt32(tmp, 0, (int) oe.getOffset());
oe.copyRawTo(tmp, 4);
out.write(tmp);
}
writeChecksumFooter();
}
}
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