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 | } | ||