1 files changed, 200 insertions, 0 deletions
diff --git a/jimfs/src/main/java/com/google/common/jimfs/DosAttributeProvider.java b/jimfs/src/main/java/com/google/common/jimfs/DosAttributeProvider.java
new file mode 100644
index 0000000..51bf96b
--- /dev/null
+++ b/jimfs/src/main/java/com/google/common/jimfs/DosAttributeProvider.java
@@ -0,0 +1,200 @@
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Licensed 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 com.google.common.jimfs;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import java.io.IOException;
+import java.nio.file.attribute.BasicFileAttributeView;
+import java.nio.file.attribute.DosFileAttributeView;
+import java.nio.file.attribute.DosFileAttributes;
+import java.nio.file.attribute.FileAttributeView;
+import java.nio.file.attribute.FileTime;
+import java.util.Map;
+import org.checkerframework.checker.nullness.compatqual.NullableDecl;
+
+/**
+ * Attribute provider that provides the {@link DosFileAttributeView} ("dos") and allows the reading
+ * of {@link DosFileAttributes}.
+ *
+ * @author Colin Decker
+ */
+final class DosAttributeProvider extends AttributeProvider {
+
+  private static final ImmutableSet<String> ATTRIBUTES =
+      ImmutableSet.of("readonly", "hidden", "archive", "system");
+
+  private static final ImmutableSet<String> INHERITED_VIEWS = ImmutableSet.of("basic", "owner");
+
+  @Override
+  public String name() {
+    return "dos";
+  }
+
+  @Override
+  public ImmutableSet<String> inherits() {
+    return INHERITED_VIEWS;
+  }
+
+  @Override
+  public ImmutableSet<String> fixedAttributes() {
+    return ATTRIBUTES;
+  }
+
+  @Override
+  public ImmutableMap<String, ?> defaultValues(Map<String, ?> userProvidedDefaults) {
+    return ImmutableMap.of(
+        "dos:readonly", getDefaultValue("dos:readonly", userProvidedDefaults),
+        "dos:hidden", getDefaultValue("dos:hidden", userProvidedDefaults),
+        "dos:archive", getDefaultValue("dos:archive", userProvidedDefaults),
+        "dos:system", getDefaultValue("dos:system", userProvidedDefaults));
+  }
+
+  private static Boolean getDefaultValue(String attribute, Map<String, ?> userProvidedDefaults) {
+    Object userProvidedValue = userProvidedDefaults.get(attribute);
+    if (userProvidedValue != null) {
+      return checkType("dos", attribute, userProvidedValue, Boolean.class);
+    }
+
+    return false;
+  }
+
+  @NullableDecl
+  @Override
+  public Object get(File file, String attribute) {
+    if (ATTRIBUTES.contains(attribute)) {
+      return file.getAttribute("dos", attribute);
+    }
+
+    return null;
+  }
+
+  @Override
+  public void set(File file, String view, String attribute, Object value, boolean create) {
+    if (supports(attribute)) {
+      checkNotCreate(view, attribute, create);
+      file.setAttribute("dos", attribute, checkType(view, attribute, value, Boolean.class));
+    }
+  }
+
+  @Override
+  public Class<DosFileAttributeView> viewType() {
+    return DosFileAttributeView.class;
+  }
+
+  @Override
+  public DosFileAttributeView view(
+      FileLookup lookup, ImmutableMap<String, FileAttributeView> inheritedViews) {
+    return new View(lookup, (BasicFileAttributeView) inheritedViews.get("basic"));
+  }
+
+  @Override
+  public Class<DosFileAttributes> attributesType() {
+    return DosFileAttributes.class;
+  }
+
+  @Override
+  public DosFileAttributes readAttributes(File file) {
+    return new Attributes(file);
+  }
+
+  /** Implementation of {@link DosFileAttributeView}. */
+  private static final class View extends AbstractAttributeView implements DosFileAttributeView {
+
+    private final BasicFileAttributeView basicView;
+
+    public View(FileLookup lookup, BasicFileAttributeView basicView) {
+      super(lookup);
+      this.basicView = checkNotNull(basicView);
+    }
+
+    @Override
+    public String name() {
+      return "dos";
+    }
+
+    @Override
+    public DosFileAttributes readAttributes() throws IOException {
+      return new Attributes(lookupFile());
+    }
+
+    @Override
+    public void setTimes(FileTime lastModifiedTime, FileTime lastAccessTime, FileTime createTime)
+        throws IOException {
+      basicView.setTimes(lastModifiedTime, lastAccessTime, createTime);
+    }
+
+    @Override
+    public void setReadOnly(boolean value) throws IOException {
+      lookupFile().setAttribute("dos", "readonly", value);
+    }
+
+    @Override
+    public void setHidden(boolean value) throws IOException {
+      lookupFile().setAttribute("dos", "hidden", value);
+    }
+
+    @Override
+    public void setSystem(boolean value) throws IOException {
+      lookupFile().setAttribute("dos", "system", value);
+    }
+
+    @Override
+    public void setArchive(boolean value) throws IOException {
+      lookupFile().setAttribute("dos", "archive", value);
+    }
+  }
+
+  /** Implementation of {@link DosFileAttributes}. */
+  static class Attributes extends BasicAttributeProvider.Attributes implements DosFileAttributes {
+
+    private final boolean readOnly;
+    private final boolean hidden;
+    private final boolean archive;
+    private final boolean system;
+
+    protected Attributes(File file) {
+      super(file);
+      this.readOnly = (boolean) file.getAttribute("dos", "readonly");
+      this.hidden = (boolean) file.getAttribute("dos", "hidden");
+      this.archive = (boolean) file.getAttribute("dos", "archive");
+      this.system = (boolean) file.getAttribute("dos", "system");
+    }
+
+    @Override
+    public boolean isReadOnly() {
+      return readOnly;
+    }
+
+    @Override
+    public boolean isHidden() {
+      return hidden;
+    }
+
+    @Override
+    public boolean isArchive() {
+      return archive;
+    }
+
+    @Override
+    public boolean isSystem() {
+      return system;
+    }
+  }
+}