1 files changed, 76 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/vfs/inmemoryfs/InMemoryLinkInfo.java b/src/main/java/com/google/devtools/build/lib/vfs/inmemoryfs/InMemoryLinkInfo.java
new file mode 100644
index 0000000000..f8837ee96a
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/vfs/inmemoryfs/InMemoryLinkInfo.java
@@ -0,0 +1,76 @@
+// Copyright 2014 Google Inc. All rights reserved.
+//
+// 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.devtools.build.lib.vfs.inmemoryfs;
+
+import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
+import com.google.devtools.build.lib.concurrent.ThreadSafety.ThreadSafe;
+import com.google.devtools.build.lib.util.Clock;
+import com.google.devtools.build.lib.vfs.PathFragment;
+
+/**
+ * This interface represents a symbolic link to an absolute or relative path,
+ * stored in an InMemoryFileSystem.
+ */
+@ThreadSafe @Immutable
+class InMemoryLinkInfo extends InMemoryContentInfo {
+
+  private final PathFragment linkContent;
+  private final PathFragment normalizedLinkContent;
+
+  InMemoryLinkInfo(Clock clock, PathFragment linkContent) {
+    super(clock);
+    this.linkContent = linkContent;
+    this.normalizedLinkContent = linkContent.normalize();
+  }
+
+  @Override
+  public boolean isDirectory() {
+    return false;
+  }
+
+  @Override
+  public boolean isSymbolicLink() {
+    return true;
+  }
+
+  @Override
+  public boolean isFile() {
+    return false;
+  }
+
+  @Override
+  public long getSize() {
+    return linkContent.toString().length();
+  }
+
+  /**
+   * Returns the content of the symbolic link.
+   */
+  PathFragment getLinkContent() {
+    return linkContent;
+  }
+
+  /**
+   * Returns the content of the symbolic link, with ".." and "." removed
+   * (except for the possibility of necessary ".." segments at the beginning).
+   */
+  PathFragment getNormalizedLinkContent() {
+    return normalizedLinkContent;
+  }
+
+  @Override
+  public String toString() {
+    return super.toString() + " -> " + linkContent;
+  }
+}