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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.geometry.io.core.input;
18  
19  import java.io.InputStream;
20  import java.nio.charset.Charset;
21  
22  import org.apache.commons.geometry.io.core.AbstractGeometryIOMetadata;
23  
24  /** {@link GeometryInput} implementation that wraps an {@link InputStream}.
25   */
26  public class StreamGeometryInput extends AbstractGeometryIOMetadata
27      implements GeometryInput {
28  
29      /** Input stream. */
30      private final InputStream in;
31  
32      /** Construct a new instance that reads from the given input stream with
33       * no configured file name or charset.
34       * @param in input stream
35       */
36      public StreamGeometryInput(final InputStream in) {
37          this(in, null, null);
38      }
39  
40      /** Construct a new instance that reads from the given input stream with the
41       * configured file name but no charset.
42       * @param in input stream
43       * @param fileName input file name; may be null
44       */
45      public StreamGeometryInput(final InputStream in, final String fileName) {
46          this(in, fileName, null);
47      }
48  
49      /** Construct a new instance that reads from the given input stream with the configured
50       * file name and charset.
51       * @param in input stream
52       * @param fileName input file name; may be null
53       * @param charset input charset; may be null
54       */
55      public StreamGeometryInput(final InputStream in, final String fileName, final Charset charset) {
56          super(fileName, charset);
57  
58          this.in = in;
59      }
60  
61      /** {@inheritDoc} */
62      @Override
63      public InputStream getInputStream() {
64          return in;
65      }
66  }