diff options
Diffstat (limited to 'jimfs/src/main/java/com/google/common/jimfs/UnixPathType.java')
-rw-r--r-- | jimfs/src/main/java/com/google/common/jimfs/UnixPathType.java | 85 |
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); + } +} |