blob: 0ebac77228aeca54833c2b91769f7d645be4c8db [file] [log] [blame]
/*
* Copyright (C) 2015, David Ostrovsky <david@ostrovsky.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.archive;
import java.beans.Statement;
import java.io.IOException;
import java.text.MessageFormat;
import java.util.Map;
import org.apache.commons.compress.archivers.ArchiveOutputStream;
import org.eclipse.jgit.archive.internal.ArchiveText;
import org.eclipse.jgit.util.StringUtils;
/**
* Base format class
*
* @since 4.0
*/
public class BaseFormat {
/**
* Compression-level for the archive file. Only values in [0-9] are allowed.
* @since 5.11
*/
protected static final String COMPRESSION_LEVEL = "compression-level"; //$NON-NLS-1$
/**
* Apply options to archive output stream
*
* @param s
* stream to apply options to
* @param o
* options map
* @return stream with option applied
* @throws IOException
*/
protected ArchiveOutputStream applyFormatOptions(ArchiveOutputStream s,
Map<String, Object> o) throws IOException {
for (Map.Entry<String, Object> p : o.entrySet()) {
try {
if (p.getKey().equals(COMPRESSION_LEVEL)) {
continue;
}
new Statement(s, "set" + StringUtils.capitalize(p.getKey()), //$NON-NLS-1$
new Object[] { p.getValue() }).execute();
} catch (Exception e) {
throw new IOException(MessageFormat.format(
ArchiveText.get().cannotSetOption, p.getKey()), e);
}
}
return s;
}
/**
* Removes and returns the {@link #COMPRESSION_LEVEL} key from the input map
* parameter if it exists, or -1 if this key does not exist.
*
* @param o
* options map
* @return The compression level if it exists in the map, or -1 instead.
* @throws IllegalArgumentException
* if the {@link #COMPRESSION_LEVEL} option does not parse to an
* Integer.
* @since 5.11
*/
protected int getCompressionLevel(Map<String, Object> o) {
if (!o.containsKey(COMPRESSION_LEVEL)) {
return -1;
}
Object option = o.get(COMPRESSION_LEVEL);
try {
Integer compressionLevel = (Integer) option;
return compressionLevel.intValue();
} catch (ClassCastException e) {
throw new IllegalArgumentException(
MessageFormat.format(
ArchiveText.get().invalidCompressionLevel, option),
e);
}
}
}