1 /**
2 * Copyright (c) 2011, The University of Southampton and the individual contributors.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * * Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 *
11 * * Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * * Neither the name of the University of Southampton nor the names of its
16 * contributors may be used to endorse or promote products derived from this
17 * software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30 package org.openimaj.tools.imagecollection.collection.config;
31
32 import java.io.IOException;
33 import java.io.PrintWriter;
34 import java.text.ParseException;
35 import java.util.Scanner;
36
37 import org.openimaj.io.ReadWriteableASCII;
38
39 import com.jayway.jsonpath.JsonPath;
40
41 /**
42 * An ImageCollectionConfig can be written to and read from an ASCII str
43 * @author Sina Samangooei (ss@ecs.soton.ac.uk)
44 *
45 */
46 public class ImageCollectionConfig implements ReadWriteableASCII{
47
48
49 private String json;
50
51 public ImageCollectionConfig(){
52 this.json = "{}";
53 }
54
55
56 public ImageCollectionConfig(String json) {
57 this.json = json;
58 }
59
60
61 @Override
62 public void readASCII(Scanner in) throws IOException {
63 StringBuilder builder = new StringBuilder();
64 while(in.hasNextLine())builder.append(in.nextLine());
65 json = builder.toString();
66 try {
67 read("$");
68 } catch (ParseException e) {
69 throw new IOException("Could not validate json");
70 }
71 }
72
73 @Override
74 public String asciiHeader() {
75 return "";
76 }
77
78 @Override
79 public void writeASCII(PrintWriter out) throws IOException {
80 out.print(json);
81 }
82
83 public <T> T read(String path) throws ParseException {
84 @SuppressWarnings("unchecked")
85 T i = (T)((Object)JsonPath.read(this.json, path));
86
87 return i;
88 }
89
90 public boolean containsValid(String videoTag) {
91 String r;
92 try {
93 r = read(videoTag);
94 } catch (ParseException e) {
95 return false;
96 }
97 return r!=null;
98 }
99
100
101 }