001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.netbeans.upgrade.systemoptions;
043:
044: import java.io.*;
045: import java.util.Iterator;
046: import java.util.Set;
047: import org.openide.filesystems.FileObject;
048:
049: /**
050: *
051: * @author Radek Matous
052: */
053: public class SystemOptionsParser {
054: static final String EXPECTED_INSTANCE = "org.openide.options.SystemOption";//NOI18N
055:
056: private String systemOptionInstanceName;
057: private boolean types;
058:
059: private SystemOptionsParser(final String systemOptionInstanceName,
060: final boolean types) {
061: this .systemOptionInstanceName = systemOptionInstanceName;
062: this .types = types;
063: }
064:
065: public static DefaultResult parse(FileObject settingsFo,
066: boolean types) throws IOException, ClassNotFoundException {
067: SettingsRecognizer instance = getRecognizer(settingsFo);
068:
069: SystemOptionsParser rImpl = null;
070: InputStream is = instance.getSerializedInstance();
071: try {
072: SerParser sp = new SerParser(is);
073: SerParser.Stream s = sp.parse();
074: rImpl = new SystemOptionsParser(instance.instanceName(),
075: types);
076: DefaultResult ret = (DefaultResult) rImpl.processContent(
077: s.contents.iterator(), false);
078: ret.setModuleName(instance.getCodeNameBase().replace('.',
079: '/'));
080: return ret;
081: } finally {
082: is.close();
083: }
084: }
085:
086: private Result processContent(final Iterator<Object> it,
087: final boolean reachedWriteReplace) {
088: for (; it.hasNext();) {
089: Object elem = it.next();
090: if (!reachedWriteReplace
091: && elem instanceof SerParser.ObjectWrapper) {
092: SerParser.ObjectWrapper ow = (SerParser.ObjectWrapper) elem;
093: String name = ow.classdesc.name;
094: if (name
095: .endsWith("org.openide.util.SharedClassObject$WriteReplace;")) {//NOI18N
096: return processContent(ow.data.iterator(), true);
097: }
098: } else if (reachedWriteReplace
099: && elem instanceof SerParser.NameValue) {
100: SerParser.NameValue nv = (SerParser.NameValue) elem;
101: if (systemOptionInstanceName.equals(nv.value)) {
102: Result result = ContentProcessor.parseContent(
103: systemOptionInstanceName, types, it);
104: return result;
105: }
106: }
107: }
108: return null;
109: }
110:
111: private static SettingsRecognizer getRecognizer(
112: final FileObject settingsFo) throws IOException {
113: SettingsRecognizer recognizer = new SettingsRecognizer(false,
114: settingsFo);
115: recognizer.parse();
116:
117: Set instances = recognizer.getInstanceOf();
118: String iName = recognizer.instanceName();
119: if (!instances.contains(EXPECTED_INSTANCE)) {
120: throw new IOException(iName);
121: }
122: return recognizer;
123: }
124: }
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