1 files changed, 85 insertions, 0 deletions
diff --git a/jimfs/src/main/java/com/google/common/jimfs/UnixPathType.java b/jimfs/src/main/java/com/google/common/jimfs/UnixPathType.java
new file mode 100644
index 0000000..76f1339
--- /dev/null
+++ b/jimfs/src/main/java/com/google/common/jimfs/UnixPathType.java
@@ -0,0 +1,85 @@
+/*
+ * 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.checkArgument;
+
+import java.nio.file.InvalidPathException;
+import org.checkerframework.checker.nullness.compatqual.NullableDecl;
+
+/**
+ * Unix-style path type.
+ *
+ * @author Colin Decker
+ */
+final class UnixPathType extends PathType {
+
+  /** Unix path type. */
+  static final PathType INSTANCE = new UnixPathType();
+
+  private UnixPathType() {
+    super(false, '/');
+  }
+
+  @Override
+  public ParseResult parsePath(String path) {
+    if (path.isEmpty()) {
+      return emptyPath();
+    }
+
+    checkValid(path);
+
+    String root = path.startsWith("/") ? "/" : null;
+    return new ParseResult(root, splitter().split(path));
+  }
+
+  private static void checkValid(String path) {
+    int nulIndex = path.indexOf('\0');
+    if (nulIndex != -1) {
+      throw new InvalidPathException(path, "nul character not allowed", nulIndex);
+    }
+  }
+
+  @Override
+  public String toString(@NullableDecl String root, Iterable<String> names) {
+    StringBuilder builder = new StringBuilder();
+    if (root != null) {
+      builder.append(root);
+    }
+    joiner().appendTo(builder, names);
+    return builder.toString();
+  }
+
+  @Override
+  public String toUriPath(String root, Iterable<String> names, boolean directory) {
+    StringBuilder builder = new StringBuilder();
+    for (String name : names) {
+      builder.append('/').append(name);
+    }
+
+    if (directory || builder.length() == 0) {
+      builder.append('/');
+    }
+    return builder.toString();
+  }
+
+  @Override
+  public ParseResult parseUriPath(String uriPath) {
+    checkArgument(uriPath.startsWith("/"), "uriPath (%s) must start with /", uriPath);
+    return parsePath(uriPath);
+  }
+}