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Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/zip/FallbackZipEncoding.java')
-rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/zip/FallbackZipEncoding.java | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/zip/FallbackZipEncoding.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/zip/FallbackZipEncoding.java new file mode 100644 index 00000000..3edbb8e1 --- /dev/null +++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/zip/FallbackZipEncoding.java @@ -0,0 +1,94 @@ +/* + * 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.tools.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 favorable 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> + */ +class FallbackZipEncoding implements ZipEncoding { + private final String charset; + + /** + * Construct a fallback zip encoding, which uses the platform's + * default charset. + */ + public FallbackZipEncoding() { + this.charset = null; + } + + /** + * Construct a fallback zip encoding, which uses the given charset. + * + * @param charset The name of the charset or {@code null} for + * the platform's default character set. + */ + public FallbackZipEncoding(final String charset) { + this.charset = charset; + } + + /** + * @see + * org.apache.tools.zip.ZipEncoding#canEncode(java.lang.String) + */ + public boolean canEncode(final String name) { + return true; + } + + /** + * @see + * org.apache.tools.zip.ZipEncoding#encode(java.lang.String) + */ + public ByteBuffer encode(final String name) throws IOException { + if (this.charset == null) { // i.e. use default charset, see no-args constructor + return ByteBuffer.wrap(name.getBytes()); + } else { + return ByteBuffer.wrap(name.getBytes(this.charset)); + } + } + + /** + * @see + * org.apache.tools.zip.ZipEncoding#decode(byte[]) + */ + public String decode(final byte[] data) throws IOException { + if (this.charset == null) { // i.e. use default charset, see no-args constructor + return new String(data); + } else { + return new String(data,this.charset); + } + } +} |