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1
9 package com.vladium.emma;
10
11 import java.io.File  ;
12 import java.io.IOException ;
13 import java.io.PrintWriter ;
14 import java.util.Properties ;
15
16 import com.vladium.logging.ILogLevels;
17 import com.vladium.util.IConstants;
18 import com.vladium.util.Property;
19 import com.vladium.util.Strings;
20 import com.vladium.util.XProperties;
21 import com.vladium.util.args.IOptsParser;
22 import com.vladium.emma.data.mergeCommand;
23 import com.vladium.emma.instr.instrCommand;
24 import com.vladium.emma.report.reportCommand;
25
26
30 public
31 abstract class Command
32 {
33
35
36 public static Command create (final String name, final String usageName, final String [] args)
37 {
38 final Command tool;
39
40
42 if ("run".equals (name))
43 tool = new runCommand (usageName, args);
44 else if ("instr".equals (name))
45 tool = new instrCommand (usageName, args);
46 else if ("report".equals (name))
47 tool = new reportCommand (usageName, args);
48 else if ("merge".equals (name))
49 tool = new mergeCommand (usageName, args);
50 else
51 throw new IllegalArgumentException ("unknown command: [" + name + "]");
52
53 tool.initialize ();
54
55 return tool;
56 }
57
58 public abstract void run ();
59
60
62
63 protected Command (final String usageToolName, final String [] args)
64 {
65 m_usageToolName = usageToolName;
66 m_args = args != null ? (String []) args.clone () : IConstants.EMPTY_STRING_ARRAY;
67 }
68
69 protected abstract String usageArgsMsg ();
70
71 protected void initialize ()
73 {
74 m_exit = false;
75
76 if (m_out != null) try { m_out.flush (); } catch (Throwable ignore) {}
77 m_out = new PrintWriter (System.out, true);
78 }
79
80 protected final String getToolName ()
81 {
82 final String clsName = getClass ().getName ();
84
85 return clsName.substring (0, clsName.length () - 7);
86 }
87
88 protected final IOptsParser getOptParser (final ClassLoader loader)
89 {
90 return IOptsParser.Factory.create (usageResName (getToolName ()), loader,
91 usageMsgPrefix (m_usageToolName), USAGE_OPT_NAMES);
92 }
93
94 protected final boolean processOpt (final IOptsParser.IOpt opt)
95 {
96 final String on = opt.getCanonicalName ();
97
98 if ("exit".equals (on)) {
100 m_exit = getOptionalBooleanOptValue (opt);
101 return true;
102 }
103 else if ("p".equals (on))
104 {
105 m_propertyFile = new File (opt.getFirstValue ());
106 return true;
107 }
108 else if ("verbose".equals (on))
109 {
110 setPropertyOverride (AppLoggers.PROPERTY_VERBOSITY_LEVEL, ILogLevels.VERBOSE_STRING);
111 return true;
112 }
113 else if ("quiet".equals (on))
114 {
115 setPropertyOverride (AppLoggers.PROPERTY_VERBOSITY_LEVEL, ILogLevels.WARNING_STRING);
116 return true;
117 }
118 else if ("silent".equals (on))
119 {
120 setPropertyOverride (AppLoggers.PROPERTY_VERBOSITY_LEVEL, ILogLevels.SEVERE_STRING);
121 return true;
122 }
123 else if ("debug".equals (on))
124 {
125 if (opt.getValueCount () == 0)
126 setPropertyOverride (AppLoggers.PROPERTY_VERBOSITY_LEVEL, ILogLevels.TRACE1_STRING);
127 else
128 setPropertyOverride (AppLoggers.PROPERTY_VERBOSITY_LEVEL, opt.getFirstValue ());
129
130 return true;
131 }
132 else if ("debugcls".equals (on))
133 {
134 setPropertyOverride (AppLoggers.PROPERTY_VERBOSITY_FILTER, Strings.toListForm (Strings.merge (opt.getValues (), COMMA_DELIMITERS, true), ','));
135 return true;
136 }
137
138 return false;
139 }
140
141 protected final void processCmdPropertyOverrides (final IOptsParser.IOpts parsedopts)
142 {
143 final IOptsParser.IOpt [] popts = parsedopts.getOpts (EMMAProperties.GENERIC_PROPERTY_OVERRIDE_PREFIX);
144 if ((popts != null) && (popts.length != 0))
145 {
146 final Properties cmdOverrides = new XProperties ();
147
148 for (int o = 0; o < popts.length; ++ o)
149 {
150 final IOptsParser.IOpt opt = popts [o];
151 final String on = opt.getName ().substring (opt.getPatternPrefix ().length ());
152
153
155 cmdOverrides.setProperty (on, opt.getFirstValue ());
156 }
157
158 m_propertyOverrides = Property.combine (cmdOverrides, m_propertyOverrides);
160 }
161 }
162
163 protected final boolean processFilePropertyOverrides ()
164 {
165 if (m_propertyFile != null)
166 {
167 final Properties fileOverrides;
168
169 try
170 {
171 fileOverrides = Property.getPropertiesFromFile (m_propertyFile);
172 }
173 catch (IOException ioe)
174 {
175 exit (true, "property override file [" + m_propertyFile.getAbsolutePath () + "] could not be read", ioe, RC_USAGE);
176 return false;
177 }
178
179 m_propertyOverrides = Property.combine (m_propertyOverrides, fileOverrides);
181 }
182
183 return true;
184 }
185
186 protected final void usageexit (final IOptsParser parser, final int level, final String msg)
187 {
188 if (msg != null)
189 {
190 m_out.print (usageMsgPrefix (m_usageToolName));
191 m_out.println (msg);
192 }
193
194 if (parser != null)
195 {
196 m_out.println ();
197 m_out.print (usageMsgPrefix (m_usageToolName));
198 m_out.println (toolNameToCommandName (m_usageToolName) + " " + usageArgsMsg () + ",");
199 m_out.println (" where options include:");
200 m_out.println ();
201 parser.usage (m_out, level, STDOUT_WIDTH);
202 }
203
204 m_out.println ();
205 exit (true, null, null, RC_USAGE);
206 }
207
208 protected final void exit (final boolean showBuildID, final String msg, final Throwable t, final int rc)
209 throws EMMARuntimeException
210 {
211 if (showBuildID)
212 {
213 m_out.println (IAppConstants.APP_USAGE_BUILD_ID);
214 }
215
216 if (msg != null)
217 {
218 m_out.print (toolNameToCommandName (m_usageToolName) + ": "); m_out.println (msg);
219 }
220
221 if (rc != RC_OK)
222 {
223
225
227 if (m_exit)
228 {
229 if (t != null) t.printStackTrace (m_out);
230 System.exit (rc);
231 }
232 else
233 {
234 if (t instanceof EMMARuntimeException)
235 throw (EMMARuntimeException) t;
236 else if (t != null)
237 throw msg != null ? new EMMARuntimeException (msg, t) : new EMMARuntimeException ("unexpected failure: ", t);
238 }
239 }
240 else
241 {
242
244 if (m_exit)
245 {
246 System.exit (0);
247 }
248 }
249 }
250
251 protected static boolean getOptionalBooleanOptValue (final IOptsParser.IOpt opt)
252 {
253 if (opt.getValueCount () == 0)
254 return true;
255 else
256 {
257 final String v = opt.getFirstValue ().toLowerCase ();
258
259 return Property.toBoolean (v);
260 }
261 }
262
263 protected static String [] getListOptValue (final IOptsParser.IOpt opt, final String delimiters, final boolean processAtFiles)
264 throws IOException
265 {
266 return Strings.mergeAT (opt.getValues (), delimiters, processAtFiles);
267 }
268
269 protected static String usageMsgPrefix (final String toolName)
270 {
271 return toolNameToCommandName (toolName).concat (" usage: ");
272 }
273
274 protected static String usageResName (final String toolName)
275 {
276 return toolName.replace ('.', '/').concat ("_usage.res");
277 }
278
279 protected static String toolNameToCommandName (final String toolName)
280 {
281 final int lastDot = toolName.lastIndexOf ('.');
282
283 return lastDot > 0 ? toolName.substring (lastDot + 1) : toolName;
284 }
285
286
287 protected final String m_usageToolName;
288 protected final String [] m_args;
289
290 protected File m_propertyFile;
291 protected Properties m_propertyOverrides;
292 protected boolean m_exit;
293 protected PrintWriter m_out;
295 protected static final String COMMA_DELIMITERS = "," + Strings.WHITE_SPACE;
296 protected static final String PATH_DELIMITERS = ",".concat (File.pathSeparator);
297
298 protected static final String [] USAGE_OPT_NAMES = new String [] {"h", "help"};
299 protected static final int STDOUT_WIDTH = 80;
300
301 protected static final int RC_OK = 0;
303 protected static final int RC_USAGE = 1;
304 protected static final int RC_UNEXPECTED = 2;
305
306
308
310
311
314 private void setPropertyOverride (final String key, final String value)
315 {
316 Properties propertyOverrides = m_propertyOverrides;
317 if (propertyOverrides == null)
318 {
319 m_propertyOverrides = propertyOverrides = new XProperties ();
320 }
321
322 propertyOverrides.setProperty (key, value);
323 }
324
325 }
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