| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.jackrabbit.vault.fs.api; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.jackrabbit.util.Text; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Implements a path mapping that supports multiple symlinks |
| * @since 3.1.10 |
| */ |
| public class MultiPathMapping implements PathMapping { |
| |
| private final Map<String, String> links = new HashMap<>(); |
| |
| private final Map<String, String> reverseLinks = new HashMap<>(); |
| |
| /** |
| * Creates a new link from the path {@code src} to the path {@code dst} |
| * @param src source path |
| * @param dst destination path |
| * @return this |
| */ |
| public MultiPathMapping link(@NotNull String src, @NotNull String dst) { |
| links.put(src, dst); |
| reverseLinks.put(dst, src); |
| return this; |
| } |
| |
| /** |
| * Merges the links from the given base mapping |
| * @param base base mapping |
| * @return this |
| */ |
| @NotNull |
| public MultiPathMapping merge(@Nullable MultiPathMapping base) { |
| if (base != null) { |
| this.links.putAll(base.links); |
| this.reverseLinks.putAll(base.reverseLinks); |
| } |
| return this; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| @NotNull |
| public String map(@NotNull String path) { |
| return map(path, false); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| @NotNull |
| public String map(@NotNull String path, boolean reverse) { |
| if (path.length() == 0 || "/".equals(path)) { |
| return path; |
| } |
| Map<String, String> lookup = reverse ? reverseLinks : links; |
| String[] segs = Text.explode(path, '/'); |
| String ret = ""; |
| for (String name: segs) { |
| ret += "/" + name; |
| String link = lookup.get(ret); |
| if (link != null) { |
| ret = link; |
| } |
| } |
| return ret; |
| } |
| } |