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 
18 /* $Id: ExampleAWTViewer.java 1851806 2019-01-22 11:53:31Z ssteiner $ */
19 
20 package embedding;
21 
22 //Java
23 import java.io.File;
24 import java.io.IOException;
25 
26 import javax.xml.transform.Result;
27 import javax.xml.transform.Source;
28 import javax.xml.transform.Transformer;
29 import javax.xml.transform.TransformerException;
30 import javax.xml.transform.TransformerFactory;
31 import javax.xml.transform.sax.SAXResult;
32 import javax.xml.transform.stream.StreamSource;
33 
34 import org.apache.fop.apps.FOPException;
35 import org.apache.fop.apps.Fop;
36 import org.apache.fop.apps.FopFactory;
37 import org.apache.fop.apps.MimeConstants;
38 
39 /**
40  * This class demonstrates the use of the AWT Viewer.
41  */
42 public class ExampleAWTViewer {
43 
44     // configure fopFactory as desired
45     private final FopFactory fopFactory = FopFactory.newInstance(new File(".").toURI());
46 
47     /**
48      * Display an FO file in the AWT Preview.
49      * @param fo the FO file
50      * @throws IOException In case of an I/O problem
51      * @throws FOPException In case of a problem during layout
52      * @throws TransformerException In case of a problem during XML processing
53      */
viewFO(File fo)54     public void viewFO(File fo)
55                 throws IOException, FOPException, TransformerException {
56 
57         //Setup FOP
58         Fop fop = fopFactory.newFop(MimeConstants.MIME_FOP_AWT_PREVIEW);
59 
60         try {
61 
62             //Load XSL-FO file (you can also do an XSL transformation here)
63             TransformerFactory factory = TransformerFactory.newInstance();
64             Transformer transformer = factory.newTransformer();
65             Source src = new StreamSource(fo);
66             Result res = new SAXResult(fop.getDefaultHandler());
67             transformer.transform(src, res);
68 
69         } catch (Exception e) {
70             if (e instanceof FOPException) {
71                 throw (FOPException)e;
72             }
73             throw new FOPException(e);
74         }
75     }
76 
77     /**
78      * Main method.
79      * @param args the command-line arguments
80      */
main(String[] args)81     public static void main(String[] args) {
82         try {
83             System.out.println("FOP ExampleAWTViewer\n");
84             System.out.println("Preparing...");
85 
86             //Setup directories
87             File baseDir = new File(".");
88             File outDir = new File(baseDir, "out");
89             outDir.mkdirs();
90 
91             //Setup input and output files
92             File fofile = new File(baseDir, "xml/fo/helloworld.fo");
93 
94             System.out.println("Input: XSL-FO (" + fofile + ")");
95             System.out.println("Output: AWT Viewer");
96             System.out.println();
97             System.out.println("Starting AWT Viewer...");
98 
99             ExampleAWTViewer app = new ExampleAWTViewer();
100             app.viewFO(fofile);
101 
102             System.out.println("Success!");
103         } catch (Exception e) {
104 //            System.err.println(ExceptionUtil.printStackTrace(e));
105             System.exit(-1);
106         }
107     }
108 }
109