Source Code Cross Referenced for AppContainerImpl.java in  » 6.0-JDK-Modules » j2me » com » sun » jumpimpl » isolate » jvmprocess » midlet » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » j2me » com.sun.jumpimpl.isolate.jvmprocess.midlet 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright  1990-2006 Sun Microsystems, Inc. All Rights Reserved.
003:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
004:         *
005:         * This program is free software; you can redistribute it and/or
006:         * modify it under the terms of the GNU General Public License version
007:         * 2 only, as published by the Free Software Foundation.
008:         *
009:         * This program is distributed in the hope that it will be useful, but
010:         * WITHOUT ANY WARRANTY; without even the implied warranty of
011:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012:         * General Public License version 2 for more details (a copy is
013:         * included at /legal/license.txt).
014:         *
015:         * You should have received a copy of the GNU General Public License
016:         * version 2 along with this work; if not, write to the Free Software
017:         * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
018:         * 02110-1301 USA
019:         *
020:         * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
021:         * Clara, CA 95054 or visit www.sun.com if you need additional
022:         * information or have any questions.
023:         */
024:
025:        package com.sun.jumpimpl.isolate.jvmprocess.midlet;
026:
027:        import java.io.File;
028:
029:        import com.sun.jump.common.JUMPApplication;
030:        import com.sun.jump.common.JUMPAppModel;
031:
032:        import com.sun.jump.isolate.jvmprocess.JUMPAppContainer;
033:        import com.sun.jump.isolate.jvmprocess.JUMPAppContainerContext;
034:
035:        import com.sun.jumpimpl.process.JUMPModulesConfig;
036:
037:        import sun.misc.MIDPConfig;
038:
039:        import java.lang.reflect.Constructor;
040:
041:        /**
042:         * Application Container for the MIDlet app model.
043:         * <p>
044:         * This class is only a factory. The actual implementation is the 
045:         * com.sun.midp.jump.isolate.MIDletContainer class in the MIDP JAR.
046:         * <p>
047:         * The factory uses the system property sun.midp.home.path as the
048:         * directory of the MIDP JAR (classes.zip).
049:         */
050:        /*
051:         * Impl note: We should change the build so that event this class
052:         * can be in the midp repository. This code needs to be compiled
053:         * before jump api and after jump impl.
054:         */
055:        public class AppContainerImpl extends JUMPAppContainer {
056:            /**
057:             * Creates an app container for a MIDlet.
058:             * This method is called using reflection.
059:             */
060:            public static JUMPAppContainer getInstance(
061:                    JUMPAppContainerContext context) {
062:                try {
063:
064:                    /*
065:                     * The MIDlet container uses classes of the MIDP library, which
066:                     * is only accessible through the MIDPImplementationClassLoader.
067:                     * Hence the MIDlet container needs to be loaded by the MIDP
068:                     * implementation classloader.
069:                     */
070:
071:                    /* First, see if anyone created the classloader already */
072:                    ClassLoader midpImplementationClassLoader = MIDPConfig
073:                            .getMIDPImplementationClassLoader();
074:
075:                    if (midpImplementationClassLoader == null) {
076:                        String midpJar = (String) context
077:                                .getConfigProperty("jump.midp.classes.zip");
078:
079:                        midpImplementationClassLoader = MIDPConfig
080:                                .newMIDPImplementationClassLoader(new String[] { midpJar });
081:                    }
082:
083:                    Class clazz = Class.forName(
084:                            "com.sun.midp.jump.isolate.MIDletContainer", true,
085:                            midpImplementationClassLoader);
086:
087:                    Constructor constructor = clazz
088:                            .getDeclaredConstructor(new Class[] { JUMPAppContainerContext.class });
089:
090:                    JUMPAppContainer midletContainer = (JUMPAppContainer) constructor
091:                            .newInstance(new Object[] { context });
092:
093:                    return midletContainer;
094:                } catch (ClassNotFoundException e) {
095:                    // MIDPConfig not found, not a dual stack platform.
096:                } catch (Throwable e) {
097:                    // Other unexpected error? Let's report it.
098:                    e.printStackTrace();
099:                }
100:
101:                return null;
102:            }
103:
104:            /**
105:             * Prevents this class from being created directly.
106:             */
107:            private AppContainerImpl() {
108:            }
109:
110:            /**
111:             * Create a MIDlet and call its startApp method.
112:             * This method will not return until after the the MIDlet's startApp
113:             * method has returned.
114:             *
115:             * @param app application properties
116:             * @param args arguments for the app
117:             *
118:             * @return runtime application ID
119:             */
120:            public int startApp(JUMPApplication app, String[] args) {
121:                throw new RuntimeException("should not get called");
122:            }
123:
124:            /**
125:             * Call a MIDlet's pauseApp method.
126:             * This method will not return until after the the MIDlet's pauseApp
127:             * method has returned.
128:             *
129:             * @param the application ID returned from startApp
130:             */
131:            public void pauseApp(int appId) {
132:                throw new RuntimeException("should not get called");
133:            }
134:
135:            /**
136:             * Call a MIDlet's startApp method.
137:             * This method will not return until after the the MIDlet's startApp
138:             * method has returned.
139:             *
140:             * @param the application ID returned from startApp
141:             */
142:            public void resumeApp(int appId) {
143:                throw new RuntimeException("should not get called");
144:            }
145:
146:            /**
147:             * Call a MIDlet's destroyApp method.
148:             * This method will not return until after the the MIDlet's startApp
149:             * method has returned.
150:             *
151:             * @param appId the application ID returned from startApp
152:             * @param force if false, give the app the option of not being destroyed
153:             */
154:            public void destroyApp(int appId, boolean force) {
155:                throw new RuntimeException("should not get called");
156:            }
157:        }
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