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/*
* RawCoder
*
* Author: Lasse Collin <lasse.collin@tukaani.org>
*
* This file has been put into the public domain.
* You can do whatever you want with this file.
*/
package org.tukaani.xz;
class RawCoder {
static void validate(FilterCoder[] filters)
throws UnsupportedOptionsException {
for (int i = 0; i < filters.length - 1; ++i)
if (!filters[i].nonLastOK())
throw new UnsupportedOptionsException(
"Unsupported XZ filter chain");
if (!filters[filters.length - 1].lastOK())
throw new UnsupportedOptionsException(
"Unsupported XZ filter chain");
int changesSizeCount = 0;
for (int i = 0; i < filters.length; ++i)
if (filters[i].changesSize())
++changesSizeCount;
if (changesSizeCount > 3)
throw new UnsupportedOptionsException(
"Unsupported XZ filter chain");
}
}
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