Source Code Cross Referenced for JavacMessager.java in  » 6.0-JDK-Modules-sun » javac-compiler » com » sun » tools » javac » processing » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules sun » javac compiler » com.sun.tools.javac.processing 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright 2005-2006 Sun Microsystems, Inc.  All Rights Reserved.
003:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004:         *
005:         * This code is free software; you can redistribute it and/or modify it
006:         * under the terms of the GNU General Public License version 2 only, as
007:         * published by the Free Software Foundation.  Sun designates this
008:         * particular file as subject to the "Classpath" exception as provided
009:         * by Sun in the LICENSE file that accompanied this code.
010:         *
011:         * This code is distributed in the hope that it will be useful, but WITHOUT
012:         * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013:         * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
014:         * version 2 for more details (a copy is included in the LICENSE file that
015:         * accompanied this code).
016:         *
017:         * You should have received a copy of the GNU General Public License version
018:         * 2 along with this work; if not, write to the Free Software Foundation,
019:         * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020:         *
021:         * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
022:         * CA 95054 USA or visit www.sun.com if you need additional information or
023:         * have any questions.
024:         */
025:
026:        package com.sun.tools.javac.processing;
027:
028:        import com.sun.tools.javac.model.JavacElements;
029:        import com.sun.tools.javac.util.*;
030:        import com.sun.tools.javac.comp.*;
031:        import com.sun.tools.javac.tree.JCTree;
032:        import com.sun.tools.javac.tree.JCTree.*;
033:        import com.sun.tools.javac.util.Position;
034:        import javax.lang.model.element.*;
035:        import javax.tools.JavaFileObject;
036:        import javax.tools.Diagnostic;
037:        import javax.annotation.processing.*;
038:        import java.util.*;
039:
040:        /** 
041:         * An implementation of the Messager built on top of log.
042:         *
043:         * <p><b>This is NOT part of any API supported by Sun Microsystems.
044:         * If you write code that depends on this, you do so at your own risk.
045:         * This code and its internal interfaces are subject to change or
046:         * deletion without notice.</b>
047:         */
048:        @Version("@(#)JavacMessager.java	1.15 07/05/05")
049:        public class JavacMessager implements  Messager {
050:            Log log;
051:            JavacProcessingEnvironment processingEnv;
052:            int errorCount = 0;
053:
054:            JavacMessager(Context context,
055:                    JavacProcessingEnvironment processingEnv) {
056:                log = Log.instance(context);
057:                this .processingEnv = processingEnv;
058:            }
059:
060:            // processingEnv.getElementUtils()
061:
062:            public void printMessage(Diagnostic.Kind kind, CharSequence msg) {
063:                printMessage(kind, msg, null, null, null);
064:            }
065:
066:            public void printMessage(Diagnostic.Kind kind, CharSequence msg,
067:                    Element e) {
068:                printMessage(kind, msg, e, null, null);
069:            }
070:
071:            /**
072:             * Prints a message of the specified kind at the location of the
073:             * annotation mirror of the annotated element.
074:             *
075:             * @param kind the kind of message
076:             * @param msg  the message, or an empty string if none
077:             * @param e    the annotated element
078:             * @param a    the annotation to use as a position hint
079:             */
080:            public void printMessage(Diagnostic.Kind kind, CharSequence msg,
081:                    Element e, AnnotationMirror a) {
082:                printMessage(kind, msg, e, a, null);
083:            }
084:
085:            /**
086:             * Prints a message of the specified kind at the location of the
087:             * annotation value inside the annotation mirror of the annotated
088:             * element.
089:             *
090:             * @param kind the kind of message
091:             * @param msg  the message, or an empty string if none
092:             * @param e    the annotated element
093:             * @param a    the annotation containing the annotaiton value
094:             * @param v    the annotation value to use as a position hint
095:             */
096:            public void printMessage(Diagnostic.Kind kind, CharSequence msg,
097:                    Element e, AnnotationMirror a, AnnotationValue v) {
098:                JavaFileObject oldSource = null;
099:                JavaFileObject newSource = null;
100:                JCDiagnostic.DiagnosticPosition pos = null;
101:                JavacElements elemUtils = processingEnv.getElementUtils();
102:                Pair<JCTree, JCCompilationUnit> treeTop = elemUtils
103:                        .getTreeAndTopLevel(e, a, v);
104:                if (treeTop != null) {
105:                    newSource = treeTop.snd.sourcefile;
106:                    if (newSource != null) {
107:                        oldSource = log.useSource(newSource);
108:                        pos = treeTop.fst.pos();
109:                    }
110:                }
111:                try {
112:                    switch (kind) {
113:                    case ERROR:
114:                        errorCount++;
115:                        boolean prev = log.multipleErrors;
116:                        log.multipleErrors = true;
117:                        try {
118:                            log.error(pos, "proc.messager", msg.toString());
119:                        } finally {
120:                            log.multipleErrors = prev;
121:                        }
122:                        break;
123:
124:                    case WARNING:
125:                        log.warning(pos, "proc.messager", msg.toString());
126:                        break;
127:
128:                    case MANDATORY_WARNING:
129:                        log.mandatoryWarning(pos, "proc.messager", msg
130:                                .toString());
131:                        break;
132:
133:                    default:
134:                        log.note(pos, "proc.messager", msg.toString());
135:                        break;
136:                    }
137:                } finally {
138:                    if (oldSource != null)
139:                        log.useSource(oldSource);
140:                }
141:            }
142:
143:            /**
144:             * Prints an error message.
145:             * Equivalent to {@code printError(null, msg)}.
146:             * @param msg  the message, or an empty string if none
147:             */
148:            public void printError(String msg) {
149:                printMessage(Diagnostic.Kind.ERROR, msg);
150:            }
151:
152:            /**
153:             * Prints a warning message.
154:             * Equivalent to {@code printWarning(null, msg)}.
155:             * @param msg  the message, or an empty string if none
156:             */
157:            public void printWarning(String msg) {
158:                printMessage(Diagnostic.Kind.WARNING, msg);
159:            }
160:
161:            /**
162:             * Prints a notice.
163:             * @param msg  the message, or an empty string if none
164:             */
165:            public void printNotice(String msg) {
166:                printMessage(Diagnostic.Kind.NOTE, msg);
167:            }
168:
169:            public boolean errorRaised() {
170:                return errorCount > 0;
171:            }
172:
173:            public int errorCount() {
174:                return errorCount;
175:            }
176:
177:            public void newRound(Context context) {
178:                log = Log.instance(context);
179:                errorCount = 0;
180:            }
181:
182:            public String toString() {
183:                return "javac Messager version @(#)JavacMessager.java	1.15 07/05/05";
184:            }
185:        }
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