Showing the changes to java/pkg/com/sun/tools/example/debug/gui/SourceModel.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,247 @@ | ||
| 1 | +/* | |
| 2 | + * Copyright (c) 1998, 2008, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package com.sun.tools.example.debug.gui; | |
| 27 | + | |
| 28 | +import java.io.*; | |
| 29 | +import java.util.*; | |
| 30 | + | |
| 31 | +import com.sun.jdi.*; | |
| 32 | +import com.sun.jdi.request.*; | |
| 33 | + | |
| 34 | +import javax.swing.*; | |
| 35 | + | |
| 36 | +/** | |
| 37 | + * Represents and manages one source file. | |
| 38 | + * Caches source lines. Holds other source file info. | |
| 39 | + */ | |
| 40 | +public class SourceModel extends AbstractListModel { | |
| 41 | + | |
| 42 | + private File path; | |
| 43 | + | |
| 44 | + boolean isActuallySource = true; | |
| 45 | + | |
| 46 | + private List<ReferenceType> classes = new ArrayList<ReferenceType>(); | |
| 47 | + | |
| 48 | + private Environment env; | |
| 49 | + | |
| 50 | + // Cached line-by-line access. | |
| 51 | + | |
| 52 | + //### Unify this with source model used in source view? | |
| 53 | + //### What is our cache-management policy for these? | |
| 54 | + //### Even with weak refs, we won't discard any part of the | |
| 55 | + //### source if the SourceModel object is reachable. | |
| 56 | + /** | |
| 57 | + * List of Line. | |
| 58 | + */ | |
| 59 | + private List<Line> sourceLines = null; | |
| 60 | + | |
| 61 | + public static class Line { | |
| 62 | + public String text; | |
| 63 | + public boolean hasBreakpoint = false; | |
| 64 | + public ReferenceType refType = null; | |
| 65 | + Line(String text) { | |
| 66 | + this.text = text; | |
| 67 | + } | |
| 68 | + public boolean isExecutable() { | |
| 69 | + return refType != null; | |
| 70 | + } | |
| 71 | + public boolean hasBreakpoint() { | |
| 72 | + return hasBreakpoint; | |
| 73 | + } | |
| 74 | + }; | |
| 75 | + | |
| 76 | + // 132 characters long, all printable characters. | |
| 77 | + public static final Line prototypeCellValue = new Line( | |
| 78 | + "abcdefghijklmnopqrstuvwxyz" + | |
| 79 | + "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + | |
| 80 | + "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + | |
| 81 | + "1234567890~!@#$%^&*()_+{}|" + | |
| 82 | + ":<>?`-=[];',.XXXXXXXXXXXX/\\\""); | |
| 83 | + | |
| 84 | + SourceModel(Environment env, File path) { | |
| 85 | + this.env = env; | |
| 86 | + this.path = path; | |
| 87 | + } | |
| 88 | + | |
| 89 | + public SourceModel(String message) { | |
| 90 | + this.path = null; | |
| 91 | + setMessage(message); | |
| 92 | + } | |
| 93 | + | |
| 94 | + private void setMessage(String message) { | |
| 95 | + isActuallySource = false; | |
| 96 | + sourceLines = new ArrayList<Line>(); | |
| 97 | + sourceLines.add(new Line(message)); | |
| 98 | + } | |
| 99 | + | |
| 100 | + // **** Implement ListModel ***** | |
| 101 | + | |
| 102 | + @Override | |
| 103 | + public Object getElementAt(int index) { | |
| 104 | + if (sourceLines == null) { | |
| 105 | + initialize(); | |
| 106 | + } | |
| 107 | + return sourceLines.get(index); | |
| 108 | + } | |
| 109 | + | |
| 110 | + @Override | |
| 111 | + public int getSize() { | |
| 112 | + if (sourceLines == null) { | |
| 113 | + initialize(); | |
| 114 | + } | |
| 115 | + return sourceLines.size(); | |
| 116 | + } | |
| 117 | + | |
| 118 | + // ***** Other functionality ***** | |
| 119 | + | |
| 120 | + public File fileName() { | |
| 121 | + return path; | |
| 122 | + } | |
| 123 | + | |
| 124 | + public BufferedReader sourceReader() throws IOException { | |
| 125 | + return new BufferedReader(new FileReader(path)); | |
| 126 | + } | |
| 127 | + | |
| 128 | + public Line line(int lineNo) { | |
| 129 | + if (sourceLines == null) { | |
| 130 | + initialize(); | |
| 131 | + } | |
| 132 | + int index = lineNo - 1; // list is 0-indexed | |
| 133 | + if (index >= sourceLines.size() || index < 0) { | |
| 134 | + return null; | |
| 135 | + } else { | |
| 136 | + return sourceLines.get(index); | |
| 137 | + } | |
| 138 | + } | |
| 139 | + | |
| 140 | + public String sourceLine(int lineNo) { | |
| 141 | + Line line = line(lineNo); | |
| 142 | + if (line == null) { | |
| 143 | + return null; | |
| 144 | + } else { | |
| 145 | + return line.text; | |
| 146 | + } | |
| 147 | + } | |
| 148 | + | |
| 149 | + void addClass(ReferenceType refType) { | |
| 150 | + // Logically is Set | |
| 151 | + if (classes.indexOf(refType) == -1) { | |
| 152 | + classes.add(refType); | |
| 153 | + if (sourceLines != null) { | |
| 154 | + markClassLines(refType); | |
| 155 | + } | |
| 156 | + } | |
| 157 | + } | |
| 158 | + | |
| 159 | + /** | |
| 160 | + * @return List of currently known {@link com.sun.jdi.ReferenceType} | |
| 161 | + * in this source file. | |
| 162 | + */ | |
| 163 | + public List<ReferenceType> referenceTypes() { | |
| 164 | + return Collections.unmodifiableList(classes); | |
| 165 | + } | |
| 166 | + | |
| 167 | + private void initialize() { | |
| 168 | + try { | |
| 169 | + rawInit(); | |
| 170 | + } catch (IOException exc) { | |
| 171 | + setMessage("[Error reading source code]"); | |
| 172 | + } | |
| 173 | + } | |
| 174 | + | |
| 175 | + public void showBreakpoint(int ln, boolean hasBreakpoint) { | |
| 176 | + line(ln).hasBreakpoint = hasBreakpoint; | |
| 177 | + fireContentsChanged(this, ln, ln); | |
| 178 | + } | |
| 179 | + | |
| 180 | + public void showExecutable(int ln, ReferenceType refType) { | |
| 181 | + line(ln).refType = refType; | |
| 182 | + fireContentsChanged(this, ln, ln); | |
| 183 | + } | |
| 184 | + | |
| 185 | + /** | |
| 186 | + * Mark executable lines and breakpoints, but only | |
| 187 | + * when sourceLines is set. | |
| 188 | + */ | |
| 189 | + private void markClassLines(ReferenceType refType) { | |
| 190 | + for (Method meth : refType.methods()) { | |
| 191 | + try { | |
| 192 | + for (Location loc : meth.allLineLocations()) { | |
| 193 | + showExecutable(loc.lineNumber(), refType); | |
| 194 | + } | |
| 195 | + } catch (AbsentInformationException exc) { | |
| 196 | + // do nothing | |
| 197 | + } | |
| 198 | + } | |
| 199 | + for (BreakpointRequest bp : | |
| 200 | + env.getExecutionManager().eventRequestManager().breakpointRequests()) { | |
| 201 | + if (bp.location() != null) { | |
| 202 | + Location loc = bp.location(); | |
| 203 | + if (loc.declaringType().equals(refType)) { | |
| 204 | + showBreakpoint(loc.lineNumber(),true); | |
| 205 | + } | |
| 206 | + } | |
| 207 | + } | |
| 208 | + } | |
| 209 | + | |
| 210 | + private void rawInit() throws IOException { | |
| 211 | + sourceLines = new ArrayList<Line>(); | |
| 212 | + BufferedReader reader = sourceReader(); | |
| 213 | + try { | |
| 214 | + String line = reader.readLine(); | |
| 215 | + while (line != null) { | |
| 216 | + sourceLines.add(new Line(expandTabs(line))); | |
| 217 | + line = reader.readLine(); | |
| 218 | + } | |
| 219 | + } finally { | |
| 220 | + reader.close(); | |
| 221 | + } | |
| 222 | + for (ReferenceType refType : classes) { | |
| 223 | + markClassLines(refType); | |
| 224 | + } | |
| 225 | + } | |
| 226 | + | |
| 227 | + private String expandTabs(String s) { | |
| 228 | + int col = 0; | |
| 229 | + int len = s.length(); | |
| 230 | + StringBuffer sb = new StringBuffer(132); | |
| 231 | + for (int i = 0; i < len; i++) { | |
| 232 | + char c = s.charAt(i); | |
| 233 | + sb.append(c); | |
| 234 | + if (c == '\t') { | |
| 235 | + int pad = (8 - (col % 8)); | |
| 236 | + for (int j = 0; j < pad; j++) { | |
| 237 | + sb.append(' '); | |
| 238 | + } | |
| 239 | + col += pad; | |
| 240 | + } else { | |
| 241 | + col++; | |
| 242 | + } | |
| 243 | + } | |
| 244 | + return sb.toString(); | |
| 245 | + } | |
| 246 | + | |
| 247 | +} | |