Source Code Cross Referenced for AutoSuiteDescriptorImpl.java in  » 6.0-JDK-Modules » j2me » com » sun » midp » automation » 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.midp.automation 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         *
003:         *
004:         * Copyright  1990-2007 Sun Microsystems, Inc. All Rights Reserved.
005:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
006:         * 
007:         * This program is free software; you can redistribute it and/or
008:         * modify it under the terms of the GNU General Public License version
009:         * 2 only, as published by the Free Software Foundation.
010:         * 
011:         * This program is distributed in the hope that it will be useful, but
012:         * WITHOUT ANY WARRANTY; without even the implied warranty of
013:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014:         * General Public License version 2 for more details (a copy is
015:         * included at /legal/license.txt).
016:         * 
017:         * You should have received a copy of the GNU General Public License
018:         * version 2 along with this work; if not, write to the Free Software
019:         * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
020:         * 02110-1301 USA
021:         * 
022:         * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
023:         * Clara, CA 95054 or visit www.sun.com if you need additional
024:         * information or have any questions.
025:         */
026:
027:        package com.sun.midp.automation;
028:
029:        import java.util.*;
030:        import java.io.*;
031:        import com.sun.midp.midletsuite.*;
032:        import com.sun.midp.security.*;
033:        import com.sun.midp.installer.*;
034:        import com.sun.midp.i18n.*;
035:
036:        /**
037:         *  Base class for AutoSuiteDescriptor implementation
038:         */
039:        abstract class AutoSuiteDescriptorImpl extends AutoSuiteDescriptor {
040:
041:            /** Internal representation of MIDlet suite */
042:            protected MIDletSuiteImpl midletSuite;
043:
044:            /** Vector containing descriptors of suite's MIDlets */
045:            protected Vector suiteMIDlets = null;
046:
047:            /** Number of MIDlets in the suite */
048:            protected int totalMIDlets;
049:
050:            /** Name of the suite */
051:            protected String suiteName;
052:
053:            /** Flag indicating whether this suite valid or not */
054:            protected boolean isValid = false;
055:
056:            /**
057:             * Constructor
058:             *
059:             * @param midletSuite internal representation of MIDlet suite
060:             */
061:            protected AutoSuiteDescriptorImpl(MIDletSuiteImpl midletSuite) {
062:                this .midletSuite = midletSuite;
063:                this .isValid = true;
064:                this .totalMIDlets = midletSuite.getNumberOfMIDlets();
065:                this .suiteName = midletSuite
066:                        .getProperty(MIDletSuiteImpl.SUITE_NAME_PROP);
067:
068:                updateMIDletsList();
069:            }
070:
071:            /**
072:             * Invalidates suite
073:             */
074:            final void invalidate() {
075:                midletSuite = null;
076:                suiteMIDlets = null;
077:                totalMIDlets = 0;
078:
079:                isValid = false;
080:            }
081:
082:            /**
083:             * Guarantees suite validness: if suite is not valid,
084:             * exception is thrown
085:             *
086:             * @param s error string
087:             */
088:            final void guaranteeSuiteValid(String s)
089:                    throws IllegalStateException {
090:
091:                if (!isValid) {
092:                    throw new IllegalStateException(s);
093:                }
094:            }
095:
096:            /**
097:             * Tests if this suite is external
098:             *
099:             * @return true, if this suite is internal
100:             */
101:            abstract boolean isExternalSuite();
102:
103:            /**
104:             * Gets suite ID
105:             *
106:             * @return suite ID as String
107:             */
108:            abstract int getSuiteID();
109:
110:            /**
111:             * Updates list of suite's MIDlets
112:             */
113:            abstract void updateMIDletsList();
114:
115:            /**
116:             * Factory method: constructs suite descriptor from suite ID
117:             *
118:             * @param suiteID ID ot the suite
119:             * @param storage suite's storage
120:             * @return suite descriptor
121:             */
122:            final static AutoSuiteDescriptor getInstanceBySuiteID(int suiteID,
123:                    MIDletSuiteStorage storage)
124:                    throws MIDletSuiteLockedException,
125:                    MIDletSuiteCorruptedException {
126:
127:                AutoSuiteDescriptor suite = null;
128:                MIDletSuiteImpl suiteImpl = null;
129:                try {
130:                    // get internal suite representation from storage
131:                    suiteImpl = storage.getMIDletSuite(suiteID, false);
132:                    if (suiteImpl == null) {
133:                        throw new IllegalArgumentException("Invalid suite ID");
134:                    }
135:                    suite = new AutoExternalSuiteDescriptorImpl(suiteID,
136:                            suiteImpl);
137:                } finally {
138:                    if (suiteImpl != null) {
139:                        suiteImpl.close();
140:                    }
141:                }
142:
143:                return suite;
144:            }
145:
146:            /**
147:             * Factory method: constructs suite descriptor from MIDlet's class name
148:             *
149:             * @param className class name of internal MIDlet
150:             * @return suite decriptor
151:             */
152:            final static AutoSuiteDescriptor getInstanceByClassName(
153:                    String className) throws IOException {
154:
155:                AutoSuiteDescriptor suite = null;
156:                MIDletSuiteImpl suiteImpl = null;
157:                try {
158:                    // create internal suite representation
159:                    suiteImpl = (MIDletSuiteImpl) InternalMIDletSuiteImpl
160:                            .create(
161:                                    className,
162:                                    AutoInternalSuiteDescriptorImpl.INTERNAL_SUITE_ID);
163:
164:                    suite = new AutoInternalSuiteDescriptorImpl(className,
165:                            suiteImpl);
166:                } finally {
167:                    if (suiteImpl != null) {
168:                        suiteImpl.close();
169:                    }
170:                }
171:
172:                return suite;
173:            }
174:
175:            /**
176:             * AutoSuiteDescriptor implementation
177:             */
178:
179:            /**
180:             * Gets name of the suite.
181:             *
182:             * @return name of the suite as specified in jar/jad
183:             */
184:            public String getSuiteName() {
185:                guaranteeSuiteValid("getSuiteName");
186:                return suiteName;
187:            }
188:
189:            /**
190:             * Gets MIDlet which should be started by default for this
191:             * suite, if any.
192:             *
193:             * @return AutoMIDletDescriptor representing default
194:             * MIDlet
195:             */
196:            public AutoMIDletDescriptor getInitialMIDlet() {
197:                guaranteeSuiteValid("getDefaultMIDlet");
198:                return (AutoMIDletDescriptor) suiteMIDlets.elementAt(0);
199:            }
200:
201:            /**
202:             * Gets suite's MIDlets.
203:             *
204:             * @return vector of AutoMIDletDescriptor objects representing
205:             * suite's MIDlets,
206:             * null if there is no default MIDlet for this suite
207:             */
208:            public Vector getSuiteMIDlets() {
209:                guaranteeSuiteValid("getSuiteMIDlets");
210:
211:                // copy suite's MIDlets vector into another
212:                Vector midlets = new Vector(totalMIDlets);
213:
214:                for (int i = 0; i < totalMIDlets; i++) {
215:                    Object o = suiteMIDlets.elementAt(i);
216:                    midlets.addElement(o);
217:                }
218:
219:                return midlets;
220:            }
221:
222:            /**
223:             * Starts this suite's initial MIDlet.
224:             *
225:             * @param args MIDlet's arguments
226:             * @return AutoMIDlet representing started MIDlet
227:             */
228:            public AutoMIDlet start(String[] args) {
229:                AutoMIDletDescriptor midlet = getInitialMIDlet();
230:                return midlet.start(args);
231:            }
232:        }
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