private static _PageDb restoreFromSnapshot(
PageCache cache,
Crypto crypto,
InputStream in,
byte[] buffer,
long bufferPage,
PageArray pa,
long index)
throws IOException {
try {
while (true) {
try {
readFully(in, buffer, 0, buffer.length);
} catch (EOFException e) {
break;
}
pa.writePage(index, p_transferTo(buffer, bufferPage));
index++;
}
// Ensure newly restored snapshot is durable and also ensure that PageArray (if a
// MappedPageArray) no longer considers itself to be empty.
pa.sync(true);
} finally {
p_delete(bufferPage);
closeQuietly(null, in);
}
try {
return new _DurablePageDb(pa, cache, crypto, false);
} catch (WrongPageSize e) {
throw e.rethrow();
}
}
/**
* @param cache optional
* @param crypto optional
*/
static _DurablePageDb open(PageArray rawArray, PageCache cache, Crypto crypto, boolean destroy)
throws IOException {
try {
return new _DurablePageDb(rawArray, cache, crypto, destroy);
} catch (WrongPageSize e) {
throw e.rethrow();
}
}
/**
* @param factory optional
* @param cache optional
* @param crypto optional
*/
static _DurablePageDb open(
boolean explicitPageSize,
int pageSize,
File[] files,
FileFactory factory,
EnumSet<OpenOption> options,
PageCache cache,
Crypto crypto,
boolean destroy)
throws IOException {
while (true) {
try {
return new _DurablePageDb(
openPageArray(pageSize, files, factory, options), cache, crypto, destroy);
} catch (WrongPageSize e) {
if (explicitPageSize) {
throw e.rethrow();
}
pageSize = e.mActual;
explicitPageSize = true;
}
}
}
