2 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3 * Copyright (C) $$Year-Rel$$ The Jalview Authors
5 * This file is part of Jalview.
7 * Jalview is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation, either version 3
10 * of the License, or (at your option) any later version.
12 * Jalview is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19 * The Jalview Authors are detailed in the 'AUTHORS' file.
24 import java.io.IOException;
25 import java.lang.management.ManagementFactory;
26 import java.util.ArrayList;
27 import java.util.List;
28 import java.util.Locale;
29 import java.util.concurrent.TimeUnit;
31 import jalview.util.ChannelProperties;
32 import jalview.util.LaunchUtils;
35 * A Launcher class for Jalview. This class is used to launch Jalview from the
36 * shadowJar when Getdown is not used or available. It attempts to take all the
37 * command line arguments to pass on to the jalview.bin.Jalview class, but to
38 * insert a -Xmx memory setting to a sensible default, using the -jvmmempc and
39 * -jvmmemmax application arguments if specified. If not specified then system
40 * properties will be looked for by jalview.bin.MemorySetting. If the user has
41 * provided the JVM with a -Xmx setting directly and not set -jvmmempc or
42 * -jvmmemmax then this setting will be used and system properties ignored. If
43 * -Xmx is set as well as -jvmmempc or -jvmmemmax as argument(s) then the -Xmx
44 * argument will NOT be passed on to the main application launch.
51 private final static String startClass = "jalview.bin.Jalview";
53 private final static String headlessProperty = "java.awt.headless";
55 private static boolean checkJVMSymlink(String testBin)
57 File testBinFile = new File(testBin);
58 if (!testBinFile.exists())
62 File targetFile = null;
65 targetFile = testBinFile.getCanonicalFile();
66 } catch (IOException e)
70 if (targetFile != null && ("java".equals(targetFile.getName())
71 || "java.exe".equals(targetFile.getName())))
79 * main method for jalview.bin.Launcher. This restarts the same JRE's JVM with
80 * the same arguments but with memory adjusted based on extracted -jvmmempc
81 * and -jvmmemmax application arguments. If on a Mac then extra dock:icon and
82 * dock:name arguments are also set.
86 public static void main(String[] args)
88 if (!LaunchUtils.checkJavaVersion())
90 System.err.println("WARNING - The Java version being used (Java "
91 + LaunchUtils.getJavaVersion()
92 + ") may lead to problems. This installation of Jalview should be used with Java "
93 + LaunchUtils.getJavaCompileVersion() + ".");
95 final String appName = ChannelProperties.getProperty("app_name");
96 final String javaBinDir = System.getProperty("java.home")
97 + File.separator + "bin" + File.separator;
98 String javaBin = null;
99 if (javaBin == null && checkJVMSymlink(javaBinDir + appName))
101 javaBin = javaBinDir + appName;
103 if (javaBin == null && checkJVMSymlink(javaBinDir + "Jalview"))
105 javaBin = javaBinDir + "Jalview";
112 List<String> command = new ArrayList<>();
113 command.add(javaBin);
115 String memSetting = null;
117 boolean isAMac = System.getProperty("os.name").indexOf("Mac") > -1;
119 for (String jvmArg : ManagementFactory.getRuntimeMXBean()
120 .getInputArguments())
125 command.add(ManagementFactory.getRuntimeMXBean().getClassPath());
127 String jvmmempc = null;
128 String jvmmemmax = null;
129 boolean debug = false;
131 boolean quiet = false;
132 boolean headless = false;
133 // must set --debug before --launcher...
134 boolean launcherstop = false;
135 boolean launcherprint = false;
136 boolean launcherwait = false;
137 ArrayList<String> arguments = new ArrayList<>();
138 for (String arg : args)
140 if (arg.equals("--debug"))
144 if (arg.equals("--quiet"))
148 if (arg.equals("--headless"))
152 if (debug && arg.equals("--launcherprint"))
154 launcherprint = true;
156 if (debug && arg.equals("--launcherstop"))
160 if (debug && arg.equals("--launcherwait"))
164 // this ends the launcher immediately
165 if (debug && arg.equals("--launchernowait"))
169 // Don't add the --launcher... args to Jalview launch
170 if (arg.startsWith("--launcher"))
174 // jvmmempc and jvmmemmax args used to set memory and are not passed on to
177 "-" + MemorySetting.MAX_HEAPSIZE_PERCENT_PROPERTY_NAME + "="))
179 jvmmempc = arg.substring(
180 MemorySetting.MAX_HEAPSIZE_PERCENT_PROPERTY_NAME.length()
183 else if (arg.startsWith(
184 "-" + MemorySetting.MAX_HEAPSIZE_PROPERTY_NAME + "="))
186 jvmmemmax = arg.substring(
187 MemorySetting.MAX_HEAPSIZE_PROPERTY_NAME.length() + 2);
189 // --doubledash versions
190 else if (arg.startsWith("--"
191 + MemorySetting.MAX_HEAPSIZE_PERCENT_PROPERTY_NAME + "="))
193 jvmmempc = arg.substring(
194 MemorySetting.MAX_HEAPSIZE_PERCENT_PROPERTY_NAME.length()
197 else if (arg.startsWith(
198 "--" + MemorySetting.MAX_HEAPSIZE_PROPERTY_NAME + "="))
200 jvmmemmax = arg.substring(
201 MemorySetting.MAX_HEAPSIZE_PROPERTY_NAME.length() + 3);
210 // use saved preferences if no cmdline args
211 boolean useCustomisedSettings = LaunchUtils
212 .getBooleanUserPreference(MemorySetting.CUSTOMISED_SETTINGS);
213 if (useCustomisedSettings)
215 if (jvmmempc == null)
217 jvmmempc = LaunchUtils
218 .getUserPreference(MemorySetting.MEMORY_JVMMEMPC);
220 if (jvmmemmax == null)
222 jvmmemmax = LaunchUtils
223 .getUserPreference(MemorySetting.MEMORY_JVMMEMMAX);
227 // add these settings if not already specified
228 boolean memSet = false;
229 boolean dockIcon = false;
230 boolean dockName = false;
231 boolean headlessProp = false;
232 for (int i = 0; i < command.size(); i++)
234 String arg = command.get(i);
235 if (arg.startsWith("-Xmx"))
237 // only use -Xmx if jvmmemmax and jvmmempc have not been set
238 if (jvmmempc == null && jvmmemmax == null)
244 else if (arg.startsWith("-Xdock:icon"))
248 else if (arg.startsWith("-Xdock:name"))
252 else if (arg.startsWith("-D" + headlessProperty + "="))
260 long maxMemLong = MemorySetting.getMemorySetting(jvmmemmax, jvmmempc);
264 memSetting = "-Xmx" + Long.toString(maxMemLong);
266 command.add(memSetting);
274 String dockIconPath = System.getProperty("getdownappdir", ".")
275 + File.separator + "resource/jalview_logo.png";
276 command.add("-Xdock:icon=" + dockIconPath);
280 // -Xdock:name=... doesn't actually work :(
281 // Leaving it in in case it gets fixed
282 command.add("-Xdock:name=" + appName);
283 // this launches WITHOUT an icon in the macOS dock. Could be useful for
285 // command.add("-Dapple.awt.UIElement=false");
286 // This also does not work for the dock
287 command.add("-Dcom.apple.mrj.application.apple.menu.about.name="
291 if (headless && !headlessProp)
293 System.setProperty(headlessProperty, "true");
294 command.add("-D" + headlessProperty + "=true");
297 String scalePropertyArg = HiDPISetting.getScalePropertyArg();
298 if (scalePropertyArg != null)
300 sysout(debug, quiet, "Running " + startClass + " with scale setting "
302 command.add(scalePropertyArg);
305 command.add(startClass);
306 command.addAll(arguments);
308 final ProcessBuilder builder = new ProcessBuilder(command);
310 if ((Boolean.parseBoolean(System.getProperty("launcherprint", "false"))
314 "LAUNCHER COMMAND: " + String.join(" ", builder.command()));
317 "Running " + startClass + " with "
318 + (memSetting == null ? "no memory setting"
319 : ("memory setting " + memSetting)));
321 if (Boolean.parseBoolean(System.getProperty("launcherstop", "false"))
322 || (debug && launcherstop))
325 "System property 'launcherstop' is set and not 'false'. Exiting.");
331 Process process = builder.start();
332 if (wait || launcherwait)
334 sysout(debug, quiet, "Launching application process");
341 "Wait time for application process is " + waitInt + "ms");
342 process.waitFor(waitInt, TimeUnit.MILLISECONDS);
344 sysout(debug, quiet, "Launcher process ending");
345 } catch (IOException e)
347 if (e.getMessage().toLowerCase(Locale.ROOT).contains("memory"))
349 System.err.println("Caught a memory exception: " + e.getMessage());
350 // Probably the "Cannot allocate memory" error, try without the memory
352 ArrayList<String> commandNoMem = new ArrayList<>();
353 for (int i = 0; i < command.size(); i++)
355 if (!command.get(i).startsWith("-Xmx"))
357 commandNoMem.add(command.get(i));
360 final ProcessBuilder builderNoMem = new ProcessBuilder(
362 System.err.println("Command without memory setting: "
363 + String.join(" ", builderNoMem.command()));
366 builderNoMem.inheritIO();
367 Process processNoMem = builderNoMem.start();
368 processNoMem.waitFor();
369 } catch (Exception ex)
371 ex.printStackTrace();
378 } catch (Exception e)
384 private static void sysout(boolean debug, boolean quiet, String message)
388 System.out.println("LAUNCHERDEBUG - " + message);