Source Code Cross Referenced for VAStepFactory.java in  » Installer » VAInstall » com » memoire » vainstall » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Installer » VAInstall » com.memoire.vainstall 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * $RCSfile: VAStepFactory.java,v $
003:         * @creation     15/03/00
004:         * @modification $Date: 2005/05/14 10:14:17 $
005:         */package com.memoire.vainstall;
006:
007:        import java.io.File;
008:        import java.io.FileOutputStream;
009:        import java.io.InputStream;
010:        import java.lang.reflect.Constructor;
011:        import java.lang.reflect.InvocationTargetException;
012:        import java.net.URL;
013:        import java.net.URLClassLoader;
014:        import java.util.Properties;
015:
016:        import javax.swing.LookAndFeel;
017:        import javax.swing.UIManager;
018:        import javax.swing.UnsupportedLookAndFeelException;
019:
020:        /**
021:         * @version $Id: VAStepFactory.java,v 1.8 2005/05/14 10:14:17 deniger Exp $
022:         * @author Axel von Arnim
023:         */
024:
025:        public abstract class VAStepFactory {
026:            private static VAStepFactory UNIQUE_UI = null;
027:
028:            private AbstractInstall setup_;
029:
030:            private VAWizardInterface wizard_;
031:
032:            private static boolean testGraphicUi(String uiId) {
033:                boolean res = true;
034:                if (("graphic".equals(uiId)) || ("xtra".equals(uiId))) {
035:                    try {
036:                        java.awt.Toolkit.getDefaultToolkit();
037:                    } catch (Error ex) {
038:                        res = false;
039:                    }
040:                }
041:                return res;
042:            }
043:
044:            private static boolean testTextUi(String uiId, AbstractInstall setup) {
045:                boolean res = true;
046:                if ("ansi".equals(uiId)) {
047:                    res = !(setup.IS_WIN || setup.IS_MAC);
048:                }
049:                return res;
050:            }
051:
052:            public static void setLnf(String uiId, Properties _vaProps,
053:                    Class c, File tmpDir) {
054:                if ('g' == uiId.charAt(0)) {
055:                    String lnfJar = _vaProps.getProperty("vainstall.lnf.jar",
056:                            null);
057:                    String lnfClass = _vaProps.getProperty(
058:                            "vainstall.lnf.class", null);
059:                    if (lnfClass == null)
060:                        return;
061:                    Class clazz = null;
062:                    if (lnfJar != null) {
063:                        InputStream in = c.getResourceAsStream("resources/"
064:                                + lnfJar);
065:                        File dest = null;
066:                        try {
067:                            dest = tmpDir != null ? File.createTempFile("lnf",
068:                                    ".jar", tmpDir) : File.createTempFile(
069:                                    "lnf", ".jar");
070:                            dest.deleteOnExit();
071:                            FileOutputStream out = new FileOutputStream(dest);
072:                            byte[] buffer = new byte[100000];
073:                            while (true) {
074:                                synchronized (buffer) {
075:
076:                                    int amountRead = in.read(buffer);
077:                                    if (amountRead == -1) {
078:                                        break;
079:                                    }
080:                                    out.write(buffer, 0, amountRead);
081:                                }
082:                            }
083:                            if (dest != null) {
084:                                URLClassLoader cl = new URLClassLoader(
085:                                        new URL[] { dest.toURL() });
086:                                clazz = cl.loadClass(lnfClass);
087:                                //important
088:                                UIManager.put("ClassLoader", cl);
089:
090:                            }
091:                        } catch (Exception _e) {
092:                            if (VAGlobals.DEBUG)
093:                                _e.printStackTrace();
094:                            return;
095:                        }
096:                    } else if ("[SYSTEM_LNF]".equals(lnfClass)) {
097:                        try {
098:                            String systemLnfClass = UIManager
099:                                    .getSystemLookAndFeelClassName();
100:                            if (systemLnfClass.equals(UIManager
101:                                    .getCrossPlatformLookAndFeelClassName())
102:                                    && System.getProperty("os.name").indexOf(
103:                                            "Linux") != -1) {
104:                                systemLnfClass = "com.sun.java.swing.plaf.gtk.GTKLookAndFeel";
105:                            }
106:                            if (VAGlobals.DEBUG) {
107:                                System.out
108:                                        .println("System lnf "
109:                                                + UIManager
110:                                                        .getSystemLookAndFeelClassName());
111:                            }
112:                            clazz = Class.forName(systemLnfClass);
113:                        } catch (ClassNotFoundException _e) {
114:                            if (VAGlobals.DEBUG)
115:                                _e.printStackTrace();
116:                            return;
117:                        }
118:                    } else {
119:                        try {
120:                            clazz = Class.forName(lnfClass);
121:                        } catch (ClassNotFoundException _e) {
122:                            if (VAGlobals.DEBUG)
123:                                _e.printStackTrace();
124:                            return;
125:
126:                        }
127:                    }
128:                    if (clazz != null)
129:                        if (VAGlobals.DEBUG) {
130:                            System.out.println("used lnf " + clazz.getName());
131:                        }
132:                    try {
133:                        UIManager.setLookAndFeel((LookAndFeel) clazz
134:                                .newInstance());
135:                    } catch (Exception _e1) {
136:                        if (VAGlobals.DEBUG)
137:                            _e1.printStackTrace();
138:                    }
139:                }
140:            }
141:
142:            public static VAStepFactory createUI(String uiId,
143:                    AbstractInstall setup) {
144:                if (UNIQUE_UI != null)
145:                    return UNIQUE_UI;
146:                if ((uiId == null) || (uiId.length() == 0)) {
147:                    System.err.println("No UI specified: trying graphic UI");
148:                    return createUI("graphic", setup);
149:                }
150:                if (!testGraphicUi(uiId)) {
151:                    System.err
152:                            .println("No graphic display found. Switching to ansi mode");
153:                    return createUI("ansi", setup);
154:                }
155:                if (!testTextUi(uiId, setup)) {
156:                    System.err
157:                            .println("Ansi not supported. Switching to text mode");
158:                    return createUI("text", setup);
159:                }
160:                String className = "com.memoire.vainstall." + uiId.charAt(0)
161:                        + "ui.VA" + Character.toUpperCase(uiId.charAt(0))
162:                        + uiId.substring(1) + "UI";
163:                try {
164:                    Class clazz = Class.forName(className);
165:                    Constructor constructor = clazz.getConstructor(null);
166:                    Object o = constructor.newInstance(null);
167:                    UNIQUE_UI = (VAStepFactory) o;
168:                } catch (ClassNotFoundException cnfe) {
169:                    System.err.println(cnfe + ": " + className);
170:                    if ("graphic".equals(uiId)) {
171:                        return createUI("ansi", setup);
172:                    }
173:                    if ("ansi".equals(uiId)) {
174:                        return createUI("text", setup);
175:                    }
176:                    if ("text".equals(uiId)) {
177:                        setup.cancel();
178:                        return null;
179:                    } else {
180:                        System.err.println("trying graphic UI");
181:                        return createUI("graphic", setup);
182:                    }
183:                } catch (ClassCastException cce) {
184:                    System.err.println(cce);
185:                    System.err.println("This class is not a VAStepFactory: "
186:                            + className);
187:                    setup.cancel();
188:                } catch (NoSuchMethodException nsme) {
189:                    System.err.println(nsme);
190:                    System.err
191:                            .println("Please implement a void constructor for "
192:                                    + className);
193:                    setup.cancel();
194:                } catch (SecurityException se) {
195:                    System.err.println(se);
196:                    setup.cancel();
197:                } catch (InstantiationException ie) {
198:                    System.err.println(ie);
199:                    System.err
200:                            .println("Please don't make this class abstract: "
201:                                    + className);
202:                    setup.cancel();
203:                } catch (IllegalAccessException iace) {
204:                    System.err.println(iace);
205:                    System.err
206:                            .println("Please set public access to constructor for "
207:                                    + className);
208:                    setup.cancel();
209:                } catch (IllegalArgumentException iare) {
210:                    System.err.println(iare);
211:                    System.err.println("Please set no args to constructor for "
212:                            + className);
213:                    setup.cancel();
214:                } catch (InvocationTargetException ite) {
215:                    System.err.println(ite);
216:                    System.err.println("Exception in constructor for "
217:                            + className);
218:                    ite.getTargetException().printStackTrace();
219:                    setup.cancel();
220:                }
221:
222:                if (UNIQUE_UI != null) {
223:                    UNIQUE_UI.setup_ = setup;
224:                    UNIQUE_UI.initUI();
225:                }
226:                return UNIQUE_UI;
227:            }
228:
229:            public abstract void initUI();
230:
231:            public void activateUI() {
232:                if (wizard_ == null) {
233:                    showError(new NullPointerException(
234:                            "Null wizard! Please create one or overload VAStepFactory::activateUI()"));
235:                    setup_.cancel();
236:                }
237:                wizard_.show();
238:            }
239:
240:            public void quitUI() {
241:                if (wizard_ != null) {
242:                    wizard_.dispose(false);
243:                }
244:            }
245:
246:            public abstract VAStep createSetupLanguageStep();
247:
248:            public abstract VAStep createWelcomeStep();
249:
250:            public abstract VAStep createLicenseStep();
251:
252:            public abstract VAStep createReadmeStep();
253:
254:            public abstract VAStep createLicenseKeyStep();
255:
256:            public abstract VAStep createUpgradeStep();
257:
258:            public abstract VAStep createDirectoryStep();
259:
260:            public abstract VAStep createInstallStep();
261:
262:            public abstract VAStep createShortcutStep();
263:
264:            public abstract VAStep createEndStep();
265:
266:            public void setActionEnabled(int actions) {
267:                if (wizard_ == null) {
268:                    showError(new NullPointerException(
269:                            "Null wizard! Please create one or overload VAStepFactory::setActionEnabled()"));
270:                    setup_.cancel();
271:                }
272:                wizard_.setActionEnabled(actions);
273:            }
274:
275:            public void showFatalError(Throwable t) {
276:                t.printStackTrace();
277:            }
278:
279:            public void showError(Throwable t) {
280:                System.err.println(t);
281:            }
282:
283:            public void uiSleep(long millis) {
284:            }
285:
286:            protected AbstractInstall getInstaller() {
287:                return setup_;
288:            }
289:
290:            protected VAWizardInterface getWizard() {
291:                return wizard_;
292:            }
293:
294:            protected void setWizard(VAWizardInterface w) {
295:                wizard_ = w;
296:            }
297:        }
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