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;
29 import jalview.util.ChannelProperties;
32 * A Launcher class for Jalview. This class is used to launch Jalview from the
33 * shadowJar when Getdown is not used or available. It attempts to take all the
34 * command line arguments to pass on to the jalview.bin.Jalview class, but to
35 * insert a -Xmx memory setting to a sensible default, using the -jvmmempc and
36 * -jvmmemmax application arguments if specified. If not specified then system
37 * properties will be looked for by jalview.bin.MemorySetting. If the user has
38 * provided the JVM with a -Xmx setting directly and not set -jvmmempc or
39 * -jvmmemmax then this setting will be used and system properties ignored. If
40 * -Xmx is set as well as -jvmmempc or -jvmmemmax as argument(s) then the -Xmx
41 * argument will NOT be passed on to the main application launch.
48 private final static String startClass = "jalview.bin.Jalview";
50 private final static String dockIconPath = ChannelProperties
51 .getProperty("logo.512");
54 * main method for jalview.bin.Launcher. This restarts the same JRE's JVM with
55 * the same arguments but with memory adjusted based on extracted -jvmmempc
56 * and -jvmmemmax application arguments. If on a Mac then extra dock:icon and
57 * dock:name arguments are also set.
61 public static void main(String[] args)
63 final String javaBin = System.getProperty("java.home") + File.separator
64 + "bin" + File.separator + "java";
66 List<String> command = new ArrayList<>();
69 String memSetting = null;
71 boolean isAMac = System.getProperty("os.name").indexOf("Mac") > -1;
73 for (String jvmArg : ManagementFactory.getRuntimeMXBean()
79 command.add(ManagementFactory.getRuntimeMXBean().getClassPath());
81 String jvmmempc = null;
82 String jvmmemmax = null;
83 ArrayList<String> arguments = new ArrayList<>();
84 for (String arg : args)
86 // jvmmempc and jvmmemmax args used to set memory and are not passed on to
89 "-" + MemorySetting.MAX_HEAPSIZE_PERCENT_PROPERTY_NAME + "="))
91 jvmmempc = arg.substring(
92 MemorySetting.MAX_HEAPSIZE_PERCENT_PROPERTY_NAME.length()
95 else if (arg.startsWith(
96 "-" + MemorySetting.MAX_HEAPSIZE_PROPERTY_NAME + "="))
98 jvmmemmax = arg.substring(
99 MemorySetting.MAX_HEAPSIZE_PROPERTY_NAME.length() + 2);
107 // add memory setting if not specified
108 boolean memSet = false;
109 boolean dockIcon = false;
110 boolean dockName = false;
111 for (int i = 0; i < command.size(); i++)
113 String arg = command.get(i);
114 if (arg.startsWith("-Xmx"))
116 // only use -Xmx if jvmmemmax and jvmmempc have not been set
117 if (jvmmempc == null && jvmmemmax == null)
123 else if (arg.startsWith("-Xdock:icon"))
127 else if (arg.startsWith("-Xdock:name"))
135 long maxMemLong = MemorySetting.getMemorySetting(jvmmemmax, jvmmempc);
139 memSetting = "-Xmx" + Long.toString(maxMemLong);
141 command.add(memSetting);
149 command.add("-Xdock:icon=" + dockIconPath);
153 // -Xdock:name=... doesn't actually work :(
154 // Leaving it in in case it gets fixed
156 "-Xdock:name=" + ChannelProperties.getProperty("app_name"));
160 String scalePropertyArg = HiDPISetting.getScalePropertyArg();
161 if (scalePropertyArg != null)
163 System.out.println("Running " + startClass + " with scale setting "
165 command.add(scalePropertyArg);
168 command.add(startClass);
169 command.addAll(arguments);
171 final ProcessBuilder builder = new ProcessBuilder(command);
173 if (Boolean.parseBoolean(System.getProperty("launcherprint", "false")))
176 "LAUNCHER COMMAND: " + String.join(" ", builder.command()));
178 System.out.println("Running " + startClass + " with "
179 + (memSetting == null ? "no memory setting"
180 : ("memory setting " + memSetting)));
182 if (Boolean.parseBoolean(System.getProperty("launcherstop", "false")))
189 Process process = builder.start();
191 } catch (IOException e)
193 if (e.getMessage().toLowerCase().contains("memory"))
195 System.out.println("Caught a memory exception: " + e.getMessage());
196 // Probably the "Cannot allocate memory" error, try without the memory
198 ArrayList<String> commandNoMem = new ArrayList<>();
199 for (int i = 0; i < command.size(); i++)
201 if (!command.get(i).startsWith("-Xmx"))
203 commandNoMem.add(command.get(i));
206 final ProcessBuilder builderNoMem = new ProcessBuilder(
208 System.out.println("Command without memory setting: "
209 + String.join(" ", builderNoMem.command()));
212 builderNoMem.inheritIO();
213 Process processNoMem = builderNoMem.start();
214 processNoMem.waitFor();
215 } catch (Exception ex)
217 ex.printStackTrace();
224 } catch (Exception e)