1 /*
2 * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 import java.awt.AWTError;
25 import java.awt.Desktop;
26 import java.awt.GraphicsEnvironment;
27 import java.awt.desktop.OpenFilesEvent;
28 import java.awt.desktop.OpenFilesHandler;
29 import java.io.File;
30 import java.io.IOException;
31 import java.io.PrintWriter;
32 import java.io.StringWriter;
33 import java.nio.file.Path;
34 import java.nio.file.Files;
35 import java.util.stream.Collectors;
36 import java.util.List;
37 import java.util.ArrayList;
38 import java.util.stream.Stream;
39 import java.util.Collections;
40
41 public class Hello implements OpenFilesHandler {
42
43 public static void main(String[] args) throws IOException, InterruptedException {
44 var faFiles = getFaFiles();
45 if (faFiles != null) {
46 // Some files got opened through fa mechanizm.
47 // They are the arguments then.
48 args = faFiles.toArray(String[]::new);
49 }
50
51 var lines = printArgs(args);
52
53 Stream.of(args).forEach(arg -> System.out.println(
54 arg.codePoints()
55 .mapToObj(codePoint -> String.format("0x%04x", codePoint))
56 .collect(Collectors.joining(",", "[", "]"))));
57
58 lines.forEach(System.out::println);
59
60 var outputFile = getOutputFile(args);
61 trace(String.format("Output file: [%s]", outputFile));
62 Files.write(outputFile, lines);
63 }
64
65 private static List<String> printArgs(String[] args) {
66 List<String> lines = new ArrayList<>();
67 lines.add(MSG);
68
69 lines.add("args.length: " + args.length);
70
71 for (String arg : args) {
72 if (arg.startsWith("jpackage.app")) {
73 lines.add(arg + "=" + System.getProperty(arg));
74 } else {
75 lines.add(arg);
76 }
77 }
78
79 for (int index = 1; index <= EXPECTED_NUM_OF_PARAMS; index++) {
80 String value = System.getProperty("param" + index);
81 if (value != null) {
82 lines.add("-Dparam" + index + "=" + value);
83 }
84 }
85
86 return lines;
87 }
88
89 private static Path getOutputFile(String[] args) {
90 Path outputFilePath = Path.of("appOutput.txt");
91
92 // If first arg is a file (most likely from fa), then put output in the same folder as
93 // the file from fa.
94 if (args.length >= 1) {
95 Path faPath = Path.of(args[0]);
96 if (Files.exists(faPath)) {
97 return faPath.toAbsolutePath().getParent().resolve(outputFilePath);
98 }
99 }
100
101 try {
102 // Try writing in the default output file.
103 Files.write(outputFilePath, Collections.emptyList());
104 return outputFilePath;
105 } catch (IOException ex) {
106 // Log reason of a failure.
107 StringWriter errors = new StringWriter();
108 ex.printStackTrace(new PrintWriter(errors));
109 Stream.of(errors.toString().split("\\R")).forEachOrdered(Hello::trace);
110 }
111
112 return Path.of(System.getProperty("user.home")).resolve(outputFilePath);
113 }
114
115 @Override
116 public void openFiles(OpenFilesEvent e) {
117 synchronized(lock) {
118 trace("openFiles");
119 files = e.getFiles().stream()
120 .map(File::toString)
121 .collect(Collectors.toList());
122
123 lock.notifyAll();
124 }
125 }
126
127 private static List<String> getFaFiles() throws InterruptedException {
128 if (openFilesHandler == null) {
129 return null;
130 }
131
132 synchronized(openFilesHandler.lock) {
133 trace("getFaFiles: wait");
134 openFilesHandler.lock.wait(1000);
135 if (openFilesHandler.files == null) {
136 trace(String.format("getFaFiles: no files"));
137 return null;
138 }
139 // Return copy of `files` to keep access to `files` field synchronized.
140 trace(String.format("getFaFiles: file count %d",
141 openFilesHandler.files.size()));
142 return new ArrayList<>(openFilesHandler.files);
143 }
144 }
145
146 private List<String> files;
147 private final Object lock = new Object();
148 private final static Hello openFilesHandler = createInstance();
149
150 private static Hello createInstance() {
151 if (GraphicsEnvironment.isHeadless()) {
152 return null;
153 }
154
155 trace("Environment supports a display");
156
157 try {
158 // Disable JAB.
159 // Needed to suppress error:
160 // Exception in thread "main" java.awt.AWTError: Assistive Technology not found: com.sun.java.accessibility.AccessBridge
161 System.setProperty("javax.accessibility.assistive_technologies", "");
162 } catch (SecurityException ex) {
163 ex.printStackTrace();
164 }
165
166 try {
167 var desktop = Desktop.getDesktop();
168 if (desktop.isSupported(Desktop.Action.APP_OPEN_FILE)) {
169 trace("Set file handler");
170 Hello instance = new Hello();
171 desktop.setOpenFileHandler(instance);
172 return instance;
173 }
174 } catch (AWTError ex) {
175 trace("Set file handler failed");
176 ex.printStackTrace();
177 }
178
179 return null;
180 }
181
182 private static final String MSG = "jpackage test application";
183 private static final int EXPECTED_NUM_OF_PARAMS = 3; // Starts at 1
184
185 private static void trace(String msg) {
186 System.out.println("hello: " + msg);
187 }
188 }