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- /*
- * 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);
- }
- }
- }
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