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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.commons.vfs2.provider;
18  
19  import org.apache.commons.vfs2.FileName;
20  import org.apache.commons.vfs2.FileType;
21  
22  /**
23   * A file name for layered files.
24   */
25  public class LayeredFileName extends AbstractFileName {
26  
27      /**
28       * The layer separator character '{@value #LAYER_SEPARATOR}'.
29       *
30       * @since 2.10.0
31       */
32      public static final char LAYER_SEPARATOR = '!';
33  
34      static final char SCHEME_SEPARATOR = ':';
35  
36      private final FileName outerUri;
37  
38      /**
39       * Constructs a new instance.
40       *
41       * @param scheme The scheme.
42       * @param outerUri outer file name.
43       * @param path the absolute path, maybe empty or null.
44       * @param type the file type.
45       */
46      public LayeredFileName(final String scheme, final FileName outerUri, final String path, final FileType type) {
47          super(scheme, path, type);
48          this.outerUri = outerUri;
49      }
50  
51      @Override
52      protected void appendRootUri(final StringBuilder buffer, final boolean addPassword) {
53          buffer.append(getScheme());
54          buffer.append(SCHEME_SEPARATOR);
55          buffer.append(getOuterName().getURI());
56          buffer.append(LAYER_SEPARATOR);
57      }
58  
59      /**
60       * Creates a FileName.
61       *
62       * @param path The file URI.
63       * @param type The FileType.
64       * @return The FileName.
65       */
66      @Override
67      public FileName createName(final String path, final FileType type) {
68          return new LayeredFileName(getScheme(), getOuterName(), path, type);
69      }
70  
71      /**
72       * Returns the URI of the outer file.
73       *
74       * @return The FileName.
75       */
76      public FileName getOuterName() {
77          return outerUri;
78      }
79  }