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.modules.gsfret.source;
043:
044: import java.io.IOException;
045: import org.netbeans.napi.gsfret.source.ParserTaskImpl;
046: import org.netbeans.modules.gsf.api.CancellableTask;
047: import org.netbeans.napi.gsfret.source.ClasspathInfo;
048: import org.netbeans.napi.gsfret.source.CompilationInfo;
049: import org.netbeans.napi.gsfret.source.Phase;
050: import org.netbeans.napi.gsfret.source.Source;
051: import org.netbeans.modules.gsf.Language;
052: import org.netbeans.modules.gsfret.source.parsing.SourceFileObject;
053: import org.openide.ErrorManager;
054: import org.openide.util.Exceptions;
055:
056: /**
057: * This class is based on JavaSourceAccessor in Retouche
058: * This file is originally from Retouche, the Java Support
059: * infrastructure in NetBeans. I have modified the file as little
060: * as possible to make merging Retouche fixes back as simple as
061: * possible.
062: *
063: *
064: * @author tom
065: */
066: public abstract class SourceAccessor {
067:
068: public static synchronized SourceAccessor getINSTANCE() {
069: if (INSTANCE == null) {
070: try {
071: Class.forName("org.netbeans.napi.gsfret.source.Source",
072: true, SourceAccessor.class.getClassLoader()); //NOI18N
073: assert INSTANCE != null;
074: } catch (ClassNotFoundException e) {
075: Exceptions.printStackTrace(e);
076: }
077: }
078: return INSTANCE;
079: }
080:
081: public static void setINSTANCE(SourceAccessor instance) {
082: assert instance != null;
083: INSTANCE = instance;
084: }
085:
086: // This was a quickfix for a similar bug to 126558; see
087: // http://hg.netbeans.org/main/rev/63c10f6d307b
088: // for a better way to fix it
089: public static int dummy;
090:
091: private static volatile SourceAccessor INSTANCE;
092:
093: public void runSpecialTask(
094: final CancellableTask<CompilationInfo> task,
095: final Source.Priority priority) {
096: INSTANCE.runSpecialTaskImpl(task, priority);
097: }
098:
099: protected abstract void runSpecialTaskImpl(
100: CancellableTask<CompilationInfo> task,
101: Source.Priority priority);
102:
103: public abstract ParserTaskImpl createParserTask(Language language,
104: ClasspathInfo cpInfo,/* DiagnosticListener<? super SourceFileObject> diagnosticListener,*/
105: String sourceLevel);
106:
107: // /**
108: // * Returns the JavacTaskImpl associated with given {@link CompilationInfo},
109: // * when it's not available it's created.
110: // * @param compilationInfo which {@link JavacTaskImpl} should be obtained.
111: // * @return {@link JavacTaskImpl} never returns null
112: // */
113: public abstract ParserTaskImpl getParserTask(
114: CompilationInfo compilationInfo);
115:
116: /**
117: * Returns a cached compilation info when available or null
118: * @param js {@link JavaSource} which {@CompilationInfo} should be returned
119: * @param phase to which the compilation info should be moved
120: * Can be called only from the dispatch thread!
121: * @return {@link CompilationInfo} or null
122: */
123: public abstract CompilationInfo getCurrentCompilationInfo(
124: Source js, Phase phase) throws IOException;
125:
126: public abstract void revalidate(Source js);
127:
128: /**
129: * Returns true when the caller is a {@link JavaSource} worker thread
130: * @return boolean
131: */
132: public abstract boolean isDispatchThread();
133:
134: /**
135: * Expert: Locks java compiler. Private API for indentation engine only!
136: */
137: public abstract void lockParser();
138:
139: /**
140: * Expert: Unlocks java compiler. Private API for indentation engine only!
141: */
142: public abstract void unlockParser();
143:
144: /**
145: * For check confinement.
146: * @return
147: */
148: public abstract boolean isParserLocked();
149: }
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