| 1 | package com.google.code.jspi;\r |
| 2 | \r |
| 3 | \r |
| 4 | import java.io.IOException;\r |
| 5 | import java.io.InputStream;\r |
| 6 | import java.lang.reflect.Constructor;\r |
| 7 | import java.lang.reflect.Field;\r |
| 8 | import java.lang.reflect.InvocationTargetException;\r |
| 9 | import java.net.URI;\r |
| 10 | import java.net.URISyntaxException;\r |
| 11 | import java.text.DateFormat;\r |
| 12 | import java.text.DecimalFormat;\r |
| 13 | import java.text.ParseException;\r |
| 14 | import java.text.SimpleDateFormat;\r |
| 15 | import java.util.Date;\r |
| 16 | import java.util.HashMap;\r |
| 17 | import java.util.HashSet;\r |
| 18 | import java.util.Locale;\r |
| 19 | import java.util.Map;\r |
| 20 | import java.util.Set;\r |
| 21 | import java.util.logging.Level;\r |
| 22 | import java.util.logging.Logger;\r |
| 23 | \r |
| 24 | import javax.print.attribute.Attribute;\r |
| 25 | import javax.print.attribute.EnumSyntax;\r |
| 26 | \r |
| 27 | import de.lohndirekt.print.attribute.AttributeWriter;\r |
| 28 | import de.lohndirekt.print.attribute.IppAttributeName;\r |
| 29 | import de.lohndirekt.print.attribute.IppDelimiterTag;\r |
| 30 | import de.lohndirekt.print.attribute.IppValueTag;\r |
| 31 | import de.lohndirekt.print.attribute.ipp.Charset;\r |
| 32 | import de.lohndirekt.print.exception.EndOfAttributesException;\r |
| 33 | \r |
| 34 | /**\r |
| 35 | * @author bpusch\r |
| 36 | *\r |
| 37 | */\r |
| 38 | public final class AttributeParser {\r |
| 39 | \r |
| 40 | private final static EndOfAttributesException END_OF_ATTRIBUTES_EXCEPTION = new EndOfAttributesException();\r |
| 41 | \r |
| 42 | private final static Logger log = Logger.getLogger(AttributeParser.class.getName());\r |
| 43 | \r |
| 44 | \r |
| 45 | \r |
| 46 | /**\r |
| 47 | * @param name\r |
| 48 | * @param values\r |
| 49 | * @return\r |
| 50 | */\r |
| 51 | private static Attribute getAttribute(String name, Object[] values) {\r |
| 52 | Attribute attribute = null;\r |
| 53 | IppAttributeName attrName = IppAttributeName.get(name);\r |
| 54 | Class attrClass = attrName.getAttributeClass();\r |
| 55 | Class superClass = attrClass.getSuperclass();\r |
| 56 | if (superClass != null) {\r |
| 57 | if (superClass.equals(EnumSyntax.class)) {\r |
| 58 | try {\r |
| 59 | Field[] fields = attrClass.getDeclaredFields();\r |
| 60 | for (int i = 0; i < fields.length; i++) {\r |
| 61 | Field field = fields[i];\r |
| 62 | if (field.getType().equals(attrClass)) {\r |
| 63 | EnumSyntax attr = (EnumSyntax) field.get(null);\r |
| 64 | if (values[0] instanceof String) {\r |
| 65 | if (attr.toString().equals(values[0])) {\r |
| 66 | attribute = (Attribute) attr;\r |
| 67 | break;\r |
| 68 | }\r |
| 69 | } else {\r |
| 70 | if (attr.getValue() == ((Integer) values[0]).intValue()) {\r |
| 71 | attribute = (Attribute) attr;\r |
| 72 | break;\r |
| 73 | }\r |
| 74 | }\r |
| 75 | }\r |
| 76 | }\r |
| 77 | } catch (SecurityException e) {\r |
| 78 | log.log(Level.SEVERE, e.getMessage(), e);\r |
| 79 | } catch (IllegalArgumentException e) {\r |
| 80 | log.log(Level.SEVERE, e.getMessage(), e);\r |
| 81 | } catch (IllegalAccessException e) {\r |
| 82 | log.log(Level.SEVERE, e.getMessage(), e);\r |
| 83 | }\r |
| 84 | \r |
| 85 | } else {\r |
| 86 | Class[] parameters = toClassArray(values);\r |
| 87 | try {\r |
| 88 | Constructor constructor = attrClass.getDeclaredConstructor(parameters);\r |
| 89 | attribute = (Attribute) constructor.newInstance(values);\r |
| 90 | } catch (SecurityException e) {\r |
| 91 | log.log(Level.SEVERE, e.getMessage(), e);\r |
| 92 | } catch (NoSuchMethodException e) {\r |
| 93 | log.log(Level.SEVERE, e.getMessage(), e);\r |
| 94 | } catch (IllegalArgumentException e) {\r |
| 95 | log.log(Level.SEVERE, e.getMessage(), e);\r |
| 96 | } catch (InstantiationException e) {\r |
| 97 | log.log(Level.SEVERE, e.getMessage(), e);\r |
| 98 | } catch (IllegalAccessException e) {\r |
| 99 | log.log(Level.SEVERE, e.getMessage(), e);\r |
| 100 | } catch (InvocationTargetException e) {\r |
| 101 | log.log(Level.SEVERE, e.getMessage(), e);\r |
| 102 | }\r |
| 103 | }\r |
| 104 | }\r |
| 105 | \r |
| 106 | return attribute;\r |
| 107 | }\r |
| 108 | \r |
| 109 | /**\r |
| 110 | * @param byteArray\r |
| 111 | * @param byteCount\r |
| 112 | * @param lastAttribute\r |
| 113 | * @return\r |
| 114 | */\r |
| 115 | private static Attribute parseAttribute(InputStream in, Attribute lastAttribute)\r |
| 116 | throws IOException, EndOfAttributesException {\r |
| 117 | \r |
| 118 | int valueTag;\r |
| 119 | while ((valueTag = in.read()) < IppValueTag.UNSUPPORTED_VALUE.getValue()) {\r |
| 120 | if (valueTag == IppDelimiterTag.END_ATTRIBUTES.getValue()) {\r |
| 121 | throw END_OF_ATTRIBUTES_EXCEPTION;\r |
| 122 | }\r |
| 123 | }\r |
| 124 | \r |
| 125 | int nameLength = parseInt2(in);\r |
| 126 | // parse the Attribute-Name\r |
| 127 | String name;\r |
| 128 | if (nameLength == 0) {\r |
| 129 | name = lastAttribute.getName();\r |
| 130 | } else {\r |
| 131 | name = parseString(in, nameLength);\r |
| 132 | }\r |
| 133 | \r |
| 134 | \r |
| 135 | Object[] values = parseValues(valueTag, in);\r |
| 136 | \r |
| 137 | return getAttribute(name, values);\r |
| 138 | }\r |
| 139 | \r |
| 140 | private static String parseString(InputStream in, int nameLength) throws IOException{\r |
| 141 | return parseString(in, nameLength, Charset.US_ASCII.getValue());\r |
| 142 | }\r |
| 143 | \r |
| 144 | private static String parseNameAndTextString(InputStream in, int nameLength) throws IOException{\r |
| 145 | return parseString(in, nameLength, AttributeWriter.DEFAULT_CHARSET.getValue());\r |
| 146 | }\r |
| 147 | \r |
| 148 | /**\r |
| 149 | * @param in\r |
| 150 | * @param nameLength\r |
| 151 | */\r |
| 152 | private static String parseString(InputStream in, int nameLength, String charsetName) throws IOException {\r |
| 153 | byte[] bytes = new byte[nameLength];\r |
| 154 | in.read(bytes);\r |
| 155 | return new String(bytes, charsetName);\r |
| 156 | \r |
| 157 | }\r |
| 158 | \r |
| 159 | \r |
| 160 | \r |
| 161 | \r |
| 162 | /**\r |
| 163 | * @param byteArray\r |
| 164 | * @param valueOffset\r |
| 165 | * @return\r |
| 166 | */\r |
| 167 | private static Date parseDate(InputStream in) throws IOException {\r |
| 168 | DecimalFormat twoDigits = new DecimalFormat("00");\r |
| 169 | DecimalFormat threeDigits = new DecimalFormat("000");\r |
| 170 | DecimalFormat fourDigits = new DecimalFormat("0000");\r |
| 171 | //year is encoded in network-byte order\r |
| 172 | int year = parseInt2(in);\r |
| 173 | int month = in.read();\r |
| 174 | int day = in.read();\r |
| 175 | int hour = in.read();\r |
| 176 | int minute = in.read();\r |
| 177 | int second = in.read();\r |
| 178 | int deci = in.read();\r |
| 179 | int mili = deci * 100;\r |
| 180 | char direction = (char) in.read();\r |
| 181 | int hoursFromUtc = in.read();\r |
| 182 | int minutesFromUtc = in.read();\r |
| 183 | \r |
| 184 | String yearString = fourDigits.format(year);\r |
| 185 | String monthString = twoDigits.format(month);\r |
| 186 | String dayString = twoDigits.format(day);\r |
| 187 | String hourString = twoDigits.format(hour);\r |
| 188 | String minuteString = twoDigits.format(minute);\r |
| 189 | String secondString = twoDigits.format(second);\r |
| 190 | String miliString = threeDigits.format(mili);\r |
| 191 | String timeZone = direction + twoDigits.format(hoursFromUtc) + twoDigits.format(minutesFromUtc);\r |
| 192 | String dateString =\r |
| 193 | yearString\r |
| 194 | + "-"\r |
| 195 | + monthString\r |
| 196 | + "-"\r |
| 197 | + dayString\r |
| 198 | + " "\r |
| 199 | + hourString\r |
| 200 | + ":"\r |
| 201 | + minuteString\r |
| 202 | + ":"\r |
| 203 | + secondString\r |
| 204 | + ":"\r |
| 205 | + miliString\r |
| 206 | + timeZone;\r |
| 207 | DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss:SSSZ");\r |
| 208 | Date date = null;\r |
| 209 | try {\r |
| 210 | date = dateFormat.parse(dateString);\r |
| 211 | } catch (ParseException e) {\r |
| 212 | log.log(Level.SEVERE, e.getMessage(), e);\r |
| 213 | }\r |
| 214 | return date;\r |
| 215 | }\r |
| 216 | \r |
| 217 | private static int parseInt4(InputStream in) throws IOException {\r |
| 218 | \r |
| 219 | //Same parsing as in java.io.DataInput readInt()\r |
| 220 | int a = in.read();\r |
| 221 | int b = in.read();\r |
| 222 | int c = in.read();\r |
| 223 | int d = in.read();\r |
| 224 | int value = (((a & 0xff) << 24) | ((b & 0xff) << 16) | ((c & 0xff) << 8) | (d & 0xff));\r |
| 225 | return value;\r |
| 226 | }\r |
| 227 | \r |
| 228 | /**\r |
| 229 | * @param bytes\r |
| 230 | * @param offset\r |
| 231 | * @return\r |
| 232 | */\r |
| 233 | private static int parseInt4(byte[] bytes, int offset) {\r |
| 234 | \r |
| 235 | //Same parsing as in java.io.DataInput readInt()\r |
| 236 | byte a = bytes[offset++];\r |
| 237 | byte b = bytes[offset++];\r |
| 238 | byte c = bytes[offset++];\r |
| 239 | byte d = bytes[offset++];\r |
| 240 | int value = (((a & 0xff) << 24) | ((b & 0xff) << 16) | ((c & 0xff) << 8) | (d & 0xff));\r |
| 241 | return value;\r |
| 242 | }\r |
| 243 | \r |
| 244 | private static int parseInt2(InputStream in) throws IOException {\r |
| 245 | \r |
| 246 | //Same parsing as in java.io.DataInput readInt()\r |
| 247 | int a = in.read();\r |
| 248 | int b = in.read();\r |
| 249 | int value = ((a & 0xff) << 8) | ((b & 0xff));\r |
| 250 | return value;\r |
| 251 | }\r |
| 252 | \r |
| 253 | /**\r |
| 254 | * @param bytes\r |
| 255 | * @return map of attributes (key -> category, value -> Set with attributes)\r |
| 256 | * \r |
| 257 | *\r |
| 258 | */\r |
| 259 | public static Map parseRequest(InputStream response) throws IOException {\r |
| 260 | Map attributes = new HashMap();\r |
| 261 | long start = System.currentTimeMillis();\r |
| 262 | Attribute lastAttribute = null;\r |
| 263 | boolean finished = false;\r |
| 264 | response.read();\r |
| 265 | \r |
| 266 | while (!finished) {\r |
| 267 | Attribute attribute = null;\r |
| 268 | try {\r |
| 269 | attribute = parseAttribute(response, lastAttribute);\r |
| 270 | if (attribute != null) {\r |
| 271 | lastAttribute = attribute;\r |
| 272 | attributes = put(attributes, attribute);\r |
| 273 | if (log.isLoggable(Level.FINEST)) {\r |
| 274 | log.finest("parsed attribute(" + attribute.getName() + "): " + attribute.toString());\r |
| 275 | }\r |
| 276 | } else {\r |
| 277 | if (log.isLoggable(Level.FINEST)) {\r |
| 278 | \r |
| 279 | log.finest("Attribute was null");\r |
| 280 | }\r |
| 281 | }\r |
| 282 | } catch (EndOfAttributesException e) {\r |
| 283 | \r |
| 284 | finished = true;\r |
| 285 | if (log.isLoggable(Level.INFO)) {\r |
| 286 | log.info("--- Attribute parsing finished ---");\r |
| 287 | }\r |
| 288 | }\r |
| 289 | }\r |
| 290 | long end = System.currentTimeMillis();\r |
| 291 | if (log.isLoggable(Level.INFO)) {\r |
| 292 | log.info("Parsing took " + (end - start) + "ms.");\r |
| 293 | }\r |
| 294 | return attributes;\r |
| 295 | }\r |
| 296 | \r |
| 297 | \r |
| 298 | /**\r |
| 299 | * @param byteArray\r |
| 300 | * @param valueOffset\r |
| 301 | * @param valueLength\r |
| 302 | * @return\r |
| 303 | */\r |
| 304 | private static URI parseUri(InputStream in, int valueLength) throws IOException {\r |
| 305 | String uriString = parseString(in, valueLength);\r |
| 306 | URI uri = null;\r |
| 307 | try {\r |
| 308 | uri = new URI(uriString);\r |
| 309 | } catch (URISyntaxException e) {\r |
| 310 | throw new RuntimeException(e);\r |
| 311 | }\r |
| 312 | return uri;\r |
| 313 | }\r |
| 314 | \r |
| 315 | \r |
| 316 | /**\r |
| 317 | * @param valueTag\r |
| 318 | * @param byteArray\r |
| 319 | * @param valueOffset\r |
| 320 | * @param valueLength\r |
| 321 | * @return\r |
| 322 | */\r |
| 323 | private static Object[] parseValues(int valueTag, InputStream in) throws IOException {\r |
| 324 | int valueLength = parseInt2(in);\r |
| 325 | Object[] values = null;\r |
| 326 | if (valueTag == IppValueTag.INTEGER.getValue() || valueTag == IppValueTag.ENUM.getValue()) {\r |
| 327 | Integer number = new Integer(parseInt4(in));\r |
| 328 | values = new Object[] { number };\r |
| 329 | } else if (\r |
| 330 | valueTag == IppValueTag.STRING.getValue()\r |
| 331 | || valueTag == IppValueTag.TEXT.getValue()\r |
| 332 | || valueTag == IppValueTag.NAME.getValue()){\r |
| 333 | String word = parseNameAndTextString(in, valueLength);\r |
| 334 | values = new Object[] { word, Locale.getDefault()}; \r |
| 335 | } else if (\r |
| 336 | valueTag == IppValueTag.CHARSET.getValue()\r |
| 337 | || valueTag == IppValueTag.LANGUAGE.getValue()\r |
| 338 | || valueTag == IppValueTag.MIMETYPE.getValue()) {\r |
| 339 | String word = parseString(in, valueLength);\r |
| 340 | values = new Object[] { word, Locale.getDefault()};\r |
| 341 | } else if (valueTag == IppValueTag.URI.getValue()) {\r |
| 342 | URI uri = parseUri(in, valueLength);\r |
| 343 | values = new Object[] { uri };\r |
| 344 | } else if (valueTag == IppValueTag.KEYWORD.getValue()) {\r |
| 345 | String word = parseString(in, valueLength);\r |
| 346 | values = new Object[] { word, Locale.getDefault()};\r |
| 347 | } else if (valueTag == IppValueTag.BOOLEAN.getValue()) {\r |
| 348 | Integer bool = new Integer(in.read());\r |
| 349 | values = new Object[] { bool };\r |
| 350 | } else if (valueTag == IppValueTag.RANGE.getValue()) {\r |
| 351 | Integer lowerBound = new Integer(parseInt4(in));\r |
| 352 | Integer upperBound = new Integer(parseInt4(in));\r |
| 353 | values = new Object[] { lowerBound, upperBound };\r |
| 354 | } else if (valueTag == IppValueTag.DATE.getValue()) {\r |
| 355 | \r |
| 356 | Date date = parseDate(in);\r |
| 357 | values = new Object[] { date };\r |
| 358 | } else if (valueTag == IppValueTag.NOVALUE.getValue()) {\r |
| 359 | values = new Object[] {\r |
| 360 | };\r |
| 361 | } else {\r |
| 362 | throw new IllegalArgumentException("\"" + Integer.toHexString(valueTag) + "\" is not a valid value-tag");\r |
| 363 | }\r |
| 364 | return values;\r |
| 365 | }\r |
| 366 | \r |
| 367 | \r |
| 368 | /**\r |
| 369 | * @param attributes\r |
| 370 | * @param attribute\r |
| 371 | */\r |
| 372 | private static Map put(Map attributes, Attribute attribute) {\r |
| 373 | Set values = (Set) attributes.get(attribute.getCategory());\r |
| 374 | if (values == null) {\r |
| 375 | values = new HashSet();\r |
| 376 | attributes.put(attribute.getCategory(), values);\r |
| 377 | }\r |
| 378 | values.add(attribute);\r |
| 379 | return attributes;\r |
| 380 | }\r |
| 381 | \r |
| 382 | /**\r |
| 383 | * @param values\r |
| 384 | * @return\r |
| 385 | */\r |
| 386 | private static Class[] toClassArray(Object[] values) {\r |
| 387 | Class[] classes = new Class[values.length];\r |
| 388 | for (int i = 0; i < values.length; i++) {\r |
| 389 | Class clazz = values[i].getClass();\r |
| 390 | if (clazz.equals(Integer.class)) {\r |
| 391 | clazz = int.class;\r |
| 392 | }\r |
| 393 | classes[i] = clazz;\r |
| 394 | }\r |
| 395 | return classes;\r |
| 396 | }\r |
| 397 | \r |
| 398 | }\r |