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.imaging.formats.rgbe;
18
19 import java.io.IOException;
20 import java.io.InputStream;
21
22 import org.apache.commons.imaging.ImagingException;
23
24 final class InfoHeaderReader {
25 private final InputStream is;
26
27 InfoHeaderReader(final InputStream is) {
28 this.is = is;
29 }
30
31 private char read() throws IOException {
32 final int result = is.read();
33 if (result < 0) {
34 throw new ImagingException("HDR: Unexpected EOF");
35 }
36 return (char) result;
37 }
38
39 public String readNextLine() throws IOException {
40 final StringBuilder buffer = new StringBuilder();
41 char c;
42
43 while ((c = read()) != '\n') {
44 buffer.append(c);
45 }
46
47 return buffer.toString();
48 }
49 }