| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.commons.compress.archivers.zip; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| |
| /** |
| * A fallback ZipEncoding, which uses a java.io means to encode names. |
| * |
| * <p>This implementation is not suitable for encodings other than |
| * UTF-8, because java.io encodes unmappable character as question |
| * marks leading to unreadable ZIP entries on some operating |
| * systems.</p> |
| * |
| * <p>Furthermore this implementation is unable to tell whether a |
| * given name can be safely encoded or not.</p> |
| * |
| * <p>This implementation acts as a last resort implementation, when |
| * neither {@link Simple8BitZipEnoding} nor {@link NioZipEncoding} is |
| * available.</p> |
| * |
| * <p>The methods of this class are reentrant.</p> |
| * @Immutable |
| */ |
| class FallbackZipEncoding implements ZipEncoding { |
| private final String charsetName; |
| |
| /** |
| * Construct a fallback zip encoding, which uses the platform's |
| * default charset. |
| */ |
| public FallbackZipEncoding() { |
| this.charsetName = null; |
| } |
| |
| /** |
| * Construct a fallback zip encoding, which uses the given charset. |
| * |
| * @param charsetName The name of the charset or {@code null} for |
| * the platform's default character set. |
| */ |
| public FallbackZipEncoding(String charsetName) { |
| this.charsetName = charsetName; |
| } |
| |
| /** |
| * @see |
| * org.apache.commons.compress.archivers.zip.ZipEncoding#canEncode(java.lang.String) |
| */ |
| public boolean canEncode(String name) { |
| return true; |
| } |
| |
| /** |
| * @see |
| * org.apache.commons.compress.archivers.zip.ZipEncoding#encode(java.lang.String) |
| */ |
| public ByteBuffer encode(String name) throws IOException { |
| if (this.charsetName == null) { // i.e. use default charset, see no-args constructor |
| return ByteBuffer.wrap(name.getBytes()); |
| } |
| return ByteBuffer.wrap(name.getBytes(this.charsetName)); |
| } |
| |
| /** |
| * @see |
| * org.apache.commons.compress.archivers.zip.ZipEncoding#decode(byte[]) |
| */ |
| public String decode(byte[] data) throws IOException { |
| if (this.charsetName == null) { // i.e. use default charset, see no-args constructor |
| return new String(data); |
| } |
| return new String(data,this.charsetName); |
| } |
| } |