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1
11 package org.eclipse.help.internal.standalone;
12
13 import java.io.*;
14 import java.util.List  ;
15
16
20 public class Eclipse extends Thread {
21 private static final int NEEDS_RESTART = 23;
23 public static final int STATUS_INIT = 0;
25 public static final int STATUS_STARTED = 1;
26 public static final int STATUS_ERROR = 2;
27
28 File dir;
29 String [] cmdarray;
30 private int status = STATUS_INIT;
31 private Exception exception;
32 Process pr;
33 private EclipseLifeCycleListener lifeCycleListener;
34
37 public Eclipse(EclipseLifeCycleListener listener) {
38 super();
39 this.lifeCycleListener = listener;
40 this.setName("Eclipse"); this.dir = Options.getEclipseHome();
42 }
43 private void prepareCommand() throws Exception {
44 if (Options.useExe()) {
45 prepareEclipseCommand();
46 ensureEclipseExeExists();
47 } else {
48 prepareJavaCommand();
49 }
50 ensureVmExists();
51 }
52 private void prepareEclipseCommand() {
53 List vmArgs = Options.getVmArgs();
54 List eclipseArgs = Options.getEclipseArgs();
55 cmdarray = new String [3 + vmArgs.size() + 1 + eclipseArgs.size()];
56 cmdarray[0] = new File(Options.getEclipseHome(), "eclipse").getAbsolutePath(); cmdarray[1] = "-vm"; cmdarray[2] = Options.getVm();
59 for (int i = 0; i < eclipseArgs.size(); i++) {
60 cmdarray[3 + i] = (String ) eclipseArgs.get(i);
61 }
62 cmdarray[3 + eclipseArgs.size()] = "-vmargs"; for (int i = 0; i < vmArgs.size(); i++) {
64 cmdarray[4 + eclipseArgs.size() + i] = (String ) vmArgs.get(i);
65 }
66 }
67 private void prepareJavaCommand() throws Exception {
68 List vmArgs = Options.getVmArgs();
69 List eclipseArgs = Options.getEclipseArgs();
70 cmdarray = new String [1 + vmArgs.size() + 3 + eclipseArgs.size()];
71 cmdarray[0] = Options.getVm();
72 for (int i = 0; i < vmArgs.size(); i++) {
73 cmdarray[1 + i] = (String ) vmArgs.get(i);
74 }
75 cmdarray[1 + vmArgs.size()] = "-cp"; cmdarray[2 + vmArgs.size()] = getStartupJar();
77 cmdarray[3 + vmArgs.size()] = "org.eclipse.core.launcher.Main"; for (int i = 0; i < eclipseArgs.size(); i++) {
79 cmdarray[4 + vmArgs.size() + i] = (String ) eclipseArgs.get(i);
80 }
81 }
82
85 public void run() {
86 try {
87 prepareCommand();
88 if (Options.isDebug()) {
89 printCommand();
90 }
91 do {
92 pr = Runtime.getRuntime().exec(cmdarray, (String []) null, dir);
93 (new StreamConsumer(pr.getInputStream())).start();
94 (new StreamConsumer(pr.getErrorStream())).start();
95 if (status == STATUS_INIT) {
96 status = STATUS_STARTED;
98 }
99 try {
100 pr.waitFor();
101 } catch (InterruptedException e) {
102 }
103 if (Options.isDebug()) {
104 System.out
105 .println("Eclipse exited with status code " + pr.exitValue()); if (pr.exitValue() == NEEDS_RESTART) {
107 System.out
108 .println("Updates are installed, Eclipse will be restarted."); }
110 }
111 } while (pr.exitValue() == NEEDS_RESTART);
112 } catch (Exception exc) {
113 exception = exc;
114 status = STATUS_ERROR;
115 } finally {
116 if (status == STATUS_INIT) {
117 status = STATUS_ERROR;
118 }
119 if (status == STATUS_ERROR && exception == null) {
120 exception = new Exception ("Unknown exception."); }
122 lifeCycleListener.eclipseEnded();
123 }
124 }
125
128 public class StreamConsumer extends Thread {
129 BufferedReader bReader;
130 public StreamConsumer(InputStream inputStream) {
131 super();
132 this.setName("Eclipse out/err consumer"); this.setDaemon(true);
134 bReader = new BufferedReader(new InputStreamReader(inputStream));
135 }
136 public void run() {
137 try {
138 String line;
139 while (null != (line = bReader.readLine())) {
140 System.out.println(line);
141 }
142 bReader.close();
143 } catch (IOException ioe) {
144 ioe.printStackTrace();
145 }
146 }
147 }
148 private void ensureVmExists() throws Exception {
149 File vmExe = new File(Options.getVm());
150 if (vmExe.exists() && !vmExe.isDirectory()) {
151 return;
152 }
153 vmExe = new File(Options.getVm() + ".exe"); if (vmExe.exists() && !vmExe.isDirectory()) {
155 return;
156 }
157 throw new Exception ("File " + vmExe.getAbsolutePath() + " does not exists. Pass a correct -vm option"); }
160 private void ensureEclipseExeExists() throws Exception {
161 File eclipseExe = new File(Options.getEclipseHome(), "eclipse" + (System.getProperty("os.name").startsWith("Win") ? ".exe" : "")); if (eclipseExe.exists() && !eclipseExe.isDirectory()) {
166 return;
167 }
168 throw new Exception ("File " + eclipseExe.getAbsolutePath() + " does not exists. Pass a correct -eclipsehome option"); }
171 private String getStartupJar() throws Exception {
172 File pluginsDir = new File(Options.getEclipseHome(), "plugins/"); if (!pluginsDir.exists() || !pluginsDir.isDirectory())
174 throw new Exception ("Plugins directory " + pluginsDir.getAbsolutePath() + " does not exists. Pass a correct -eclipsehome option"); File[] plugins = pluginsDir.listFiles();
177 for (int i = 0; i < plugins.length; i++) {
178 String file = plugins[i].getName();
179 if (file.startsWith("org.eclipse.equinox.launcher") && file.endsWith(".jar") && !plugins[i].isDirectory()) return "plugins/" + file; }
182 throw new Exception ("Plugins directory " + pluginsDir.getAbsolutePath() + " does not contain a valid startup jar. Pass a correct -eclipsehome option"); }
185
188 public Exception getException() {
189 return exception;
190 }
191
192
195 public int getStatus() {
196 return status;
197 }
198 private void printCommand() {
199 System.out.println("Launch command is:"); for (int i = 0; i < cmdarray.length; i++) {
201 System.out.println(" " + cmdarray[i]); }
203
204 }
205
208 public void killProcess() {
209 if (pr != null) {
210 pr.destroy();
211 }
212 }
213 }
214 |
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