/*
 * Copyright (c) 2009, 2018, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package jdk.nio.zipfs;

import java.io.IOException;
import java.nio.file.attribute.BasicFileAttributeView;
import java.nio.file.attribute.FileAttributeView;
import java.nio.file.attribute.FileTime;
import java.util.LinkedHashMap;
import java.util.Map;

Author:Xueming Shen, Rajendra Gutupalli, Jaya Hangal
/** * @author Xueming Shen, Rajendra Gutupalli, Jaya Hangal */
class ZipFileAttributeView implements BasicFileAttributeView { private static enum AttrID { size, creationTime, lastAccessTime, lastModifiedTime, isDirectory, isRegularFile, isSymbolicLink, isOther, fileKey, compressedSize, crc, method }; private final ZipPath path; private final boolean isZipView; private ZipFileAttributeView(ZipPath path, boolean isZipView) { this.path = path; this.isZipView = isZipView; } @SuppressWarnings("unchecked") // Cast to V static <V extends FileAttributeView> V get(ZipPath path, Class<V> type) { if (type == null) throw new NullPointerException(); if (type == BasicFileAttributeView.class) return (V)new ZipFileAttributeView(path, false); if (type == ZipFileAttributeView.class) return (V)new ZipFileAttributeView(path, true); return null; } static ZipFileAttributeView get(ZipPath path, String type) { if (type == null) throw new NullPointerException(); if (type.equals("basic")) return new ZipFileAttributeView(path, false); if (type.equals("zip")) return new ZipFileAttributeView(path, true); return null; } @Override public String name() { return isZipView ? "zip" : "basic"; } public ZipFileAttributes readAttributes() throws IOException { return path.getAttributes(); } @Override public void setTimes(FileTime lastModifiedTime, FileTime lastAccessTime, FileTime createTime) throws IOException { path.setTimes(lastModifiedTime, lastAccessTime, createTime); } void setAttribute(String attribute, Object value) throws IOException { try { if (AttrID.valueOf(attribute) == AttrID.lastModifiedTime) setTimes((FileTime)value, null, null); if (AttrID.valueOf(attribute) == AttrID.lastAccessTime) setTimes(null, (FileTime)value, null); if (AttrID.valueOf(attribute) == AttrID.creationTime) setTimes(null, null, (FileTime)value); return; } catch (IllegalArgumentException x) {} throw new UnsupportedOperationException("'" + attribute + "' is unknown or read-only attribute"); } Map<String, Object> readAttributes(String attributes) throws IOException { ZipFileAttributes zfas = readAttributes(); LinkedHashMap<String, Object> map = new LinkedHashMap<>(); if ("*".equals(attributes)) { for (AttrID id : AttrID.values()) { try { map.put(id.name(), attribute(id, zfas)); } catch (IllegalArgumentException x) {} } } else { String[] as = attributes.split(","); for (String a : as) { try { map.put(a, attribute(AttrID.valueOf(a), zfas)); } catch (IllegalArgumentException x) {} } } return map; } Object attribute(AttrID id, ZipFileAttributes zfas) { switch (id) { case size: return zfas.size(); case creationTime: return zfas.creationTime(); case lastAccessTime: return zfas.lastAccessTime(); case lastModifiedTime: return zfas.lastModifiedTime(); case isDirectory: return zfas.isDirectory(); case isRegularFile: return zfas.isRegularFile(); case isSymbolicLink: return zfas.isSymbolicLink(); case isOther: return zfas.isOther(); case fileKey: return zfas.fileKey(); case compressedSize: if (isZipView) return zfas.compressedSize(); break; case crc: if (isZipView) return zfas.crc(); break; case method: if (isZipView) return zfas.method(); break; } return null; } }