| /* |
| * Copyright (c) 2008, 2011, 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 sun.nio.fs; |
| |
| import java.nio.file.attribute.*; |
| import java.util.*; |
| import java.io.IOException; |
| |
| /** |
| * Base implementation of BasicFileAttributeView |
| */ |
| |
| abstract class AbstractBasicFileAttributeView |
| implements BasicFileAttributeView, DynamicFileAttributeView |
| { |
| private static final String SIZE_NAME = "size"; |
| private static final String CREATION_TIME_NAME = "creationTime"; |
| private static final String LAST_ACCESS_TIME_NAME = "lastAccessTime"; |
| private static final String LAST_MODIFIED_TIME_NAME = "lastModifiedTime"; |
| private static final String FILE_KEY_NAME = "fileKey"; |
| private static final String IS_DIRECTORY_NAME = "isDirectory"; |
| private static final String IS_REGULAR_FILE_NAME = "isRegularFile"; |
| private static final String IS_SYMBOLIC_LINK_NAME = "isSymbolicLink"; |
| private static final String IS_OTHER_NAME = "isOther"; |
| |
| // the names of the basic attributes |
| static final Set<String> basicAttributeNames = |
| Util.newSet(SIZE_NAME, |
| CREATION_TIME_NAME, |
| LAST_ACCESS_TIME_NAME, |
| LAST_MODIFIED_TIME_NAME, |
| FILE_KEY_NAME, |
| IS_DIRECTORY_NAME, |
| IS_REGULAR_FILE_NAME, |
| IS_SYMBOLIC_LINK_NAME, |
| IS_OTHER_NAME); |
| |
| protected AbstractBasicFileAttributeView() { } |
| |
| @Override |
| public String name() { |
| return "basic"; |
| } |
| |
| @Override |
| public void setAttribute(String attribute, Object value) |
| throws IOException |
| { |
| if (attribute.equals(LAST_MODIFIED_TIME_NAME)) { |
| setTimes((FileTime)value, null, null); |
| return; |
| } |
| if (attribute.equals(LAST_ACCESS_TIME_NAME)) { |
| setTimes(null, (FileTime)value, null); |
| return; |
| } |
| if (attribute.equals(CREATION_TIME_NAME)) { |
| setTimes(null, null, (FileTime)value); |
| return; |
| } |
| throw new IllegalArgumentException("'" + name() + ":" + |
| attribute + "' not recognized"); |
| } |
| |
| /** |
| * Used to build a map of attribute name/values. |
| */ |
| static class AttributesBuilder { |
| private Set<String> names = new HashSet<>(); |
| private Map<String,Object> map = new HashMap<>(); |
| private boolean copyAll; |
| |
| private AttributesBuilder(Set<String> allowed, String[] requested) { |
| for (String name: requested) { |
| if (name.equals("*")) { |
| copyAll = true; |
| } else { |
| if (!allowed.contains(name)) |
| throw new IllegalArgumentException("'" + name + "' not recognized"); |
| names.add(name); |
| } |
| } |
| } |
| |
| /** |
| * Creates builder to build up a map of the matching attributes |
| */ |
| static AttributesBuilder create(Set<String> allowed, String[] requested) { |
| return new AttributesBuilder(allowed, requested); |
| } |
| |
| /** |
| * Returns true if the attribute should be returned in the map |
| */ |
| boolean match(String name) { |
| return copyAll || names.contains(name); |
| } |
| |
| void add(String name, Object value) { |
| map.put(name, value); |
| } |
| |
| /** |
| * Returns the map. Discard all references to the AttributesBuilder |
| * after invoking this method. |
| */ |
| Map<String,Object> unmodifiableMap() { |
| return Collections.unmodifiableMap(map); |
| } |
| } |
| |
| /** |
| * Invoked by readAttributes or sub-classes to add all matching basic |
| * attributes to the builder |
| */ |
| final void addRequestedBasicAttributes(BasicFileAttributes attrs, |
| AttributesBuilder builder) |
| { |
| if (builder.match(SIZE_NAME)) |
| builder.add(SIZE_NAME, attrs.size()); |
| if (builder.match(CREATION_TIME_NAME)) |
| builder.add(CREATION_TIME_NAME, attrs.creationTime()); |
| if (builder.match(LAST_ACCESS_TIME_NAME)) |
| builder.add(LAST_ACCESS_TIME_NAME, attrs.lastAccessTime()); |
| if (builder.match(LAST_MODIFIED_TIME_NAME)) |
| builder.add(LAST_MODIFIED_TIME_NAME, attrs.lastModifiedTime()); |
| if (builder.match(FILE_KEY_NAME)) |
| builder.add(FILE_KEY_NAME, attrs.fileKey()); |
| if (builder.match(IS_DIRECTORY_NAME)) |
| builder.add(IS_DIRECTORY_NAME, attrs.isDirectory()); |
| if (builder.match(IS_REGULAR_FILE_NAME)) |
| builder.add(IS_REGULAR_FILE_NAME, attrs.isRegularFile()); |
| if (builder.match(IS_SYMBOLIC_LINK_NAME)) |
| builder.add(IS_SYMBOLIC_LINK_NAME, attrs.isSymbolicLink()); |
| if (builder.match(IS_OTHER_NAME)) |
| builder.add(IS_OTHER_NAME, attrs.isOther()); |
| } |
| |
| @Override |
| public Map<String,Object> readAttributes(String[] requested) |
| throws IOException |
| { |
| AttributesBuilder builder = |
| AttributesBuilder.create(basicAttributeNames, requested); |
| addRequestedBasicAttributes(readAttributes(), builder); |
| return builder.unmodifiableMap(); |
| } |
| } |