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| 1 | /* | ||
| 2 | * Copyright (c) 2004, 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 sun.management; | ||
| 27 | import java.lang.management.MemoryUsage; | ||
| 28 | import java.lang.management.MemoryNotificationInfo; | ||
| 29 | import java.lang.management.MonitorInfo; | ||
| 30 | import java.lang.management.LockInfo; | ||
| 31 | import java.lang.management.ThreadInfo; | ||
| 32 | import java.lang.reflect.*; | ||
| 33 | import java.util.List; | ||
| 34 | import java.util.Map; | ||
| 35 | import java.util.*; | ||
| 36 | import java.io.InvalidObjectException; | ||
| 37 | import java.security.AccessController; | ||
| 38 | import java.security.PrivilegedAction; | ||
| 39 | import java.security.PrivilegedActionException; | ||
| 40 | import java.security.PrivilegedExceptionAction; | ||
| 41 | import javax.management.*; | ||
| 42 | import javax.management.openmbean.*; | ||
| 43 | import static javax.management.openmbean.SimpleType.*; | ||
| 44 | import com.sun.management.VMOption; | ||
| 45 | |||
| 46 | /** | ||
| 47 | * A mapped mxbean type maps a Java type to an open type. | ||
| 48 | * Only the following Java types are mappable | ||
| 49 | * (currently required by the platform MXBeans): | ||
| 50 | * 1. Primitive types | ||
| 51 | * 2. Wrapper classes such java.lang.Integer, etc | ||
| 52 | * 3. Classes with only getter methods and with a static "from" method | ||
| 53 | * that takes a CompositeData argument. | ||
| 54 | * 4. E[] where E is a type of 1-4 (can be multi-dimensional array) | ||
| 55 | * 5. List<E> where E is a type of 1-3 | ||
| 56 | * 6. Map<K, V> where K and V are a type of 1-4 | ||
| 57 | * | ||
| 58 | * OpenDataException will be thrown if a Java type is not supported. | ||
| 59 | */ | ||
| 60 | // Suppress unchecked cast warnings at line 442, 523 and 546 | ||
| 61 | // Suppress unchecked calls at line 235, 284, 380 and 430. | ||
| 62 | @SuppressWarnings("unchecked") | ||
| 63 | public abstract class MappedMXBeanType { | ||
| 64 | private static final WeakHashMap<Type,MappedMXBeanType> convertedTypes = | ||
| 65 | new WeakHashMap<Type,MappedMXBeanType>(); | ||
| 66 | |||
| 67 | boolean isBasicType = false; | ||
| 68 | OpenType openType = inProgress; | ||
| 69 | Class mappedTypeClass; | ||
| 70 | |||
| 71 | static synchronized MappedMXBeanType newMappedType(Type javaType) | ||
| 72 | throws OpenDataException { | ||
| 73 | |||
| 74 | MappedMXBeanType mt = null; | ||
| 75 | if (javaType instanceof Class) { | ||
| 76 | final Class c = (Class) javaType; | ||
| 77 | if (c.isEnum()) { | ||
| 78 | mt = new EnumMXBeanType(c); | ||
| 79 | } else if (c.isArray()) { | ||
| 80 | mt = new ArrayMXBeanType(c); | ||
| 81 | } else { | ||
| 82 | mt = new CompositeDataMXBeanType(c); | ||
| 83 | } | ||
| 84 | } else if (javaType instanceof ParameterizedType) { | ||
| 85 | final ParameterizedType pt = (ParameterizedType) javaType; | ||
| 86 | final Type rawType = pt.getRawType(); | ||
| 87 | if (rawType instanceof Class) { | ||
| 88 | final Class rc = (Class) rawType; | ||
| 89 | if (rc == List.class) { | ||
| 90 | mt = new ListMXBeanType(pt); | ||
| 91 | } else if (rc == Map.class) { | ||
| 92 | mt = new MapMXBeanType(pt); | ||
| 93 | } | ||
| 94 | } | ||
| 95 | } else if (javaType instanceof GenericArrayType) { | ||
| 96 | final GenericArrayType t = (GenericArrayType) javaType; | ||
| 97 | mt = new GenericArrayMXBeanType(t); | ||
| 98 | } | ||
| 99 | // No open type mapped for the javaType | ||
| 100 | if (mt == null) { | ||
| 101 | throw new OpenDataException(javaType + | ||
| 102 | " is not a supported MXBean type."); | ||
| 103 | } | ||
| 104 | convertedTypes.put(javaType, mt); | ||
| 105 | return mt; | ||
| 106 | } | ||
| 107 | |||
| 108 | // basic types do not require data mapping | ||
| 109 | static synchronized MappedMXBeanType newBasicType(Class c, OpenType ot) | ||
| 110 | throws OpenDataException { | ||
| 111 | MappedMXBeanType mt = new BasicMXBeanType(c, ot); | ||
| 112 | convertedTypes.put(c, mt); | ||
| 113 | return mt; | ||
| 114 | } | ||
| 115 | |||
| 116 | static synchronized MappedMXBeanType getMappedType(Type t) | ||
| 117 | throws OpenDataException { | ||
| 118 | MappedMXBeanType mt = convertedTypes.get(t); | ||
| 119 | if (mt == null) { | ||
| 120 | mt = newMappedType(t); | ||
| 121 | } | ||
| 122 | |||
| 123 | if (mt.getOpenType() instanceof InProgress) { | ||
| 124 | throw new OpenDataException("Recursive data structure"); | ||
| 125 | } | ||
| 126 | return mt; | ||
| 127 | } | ||
| 128 | |||
| 129 | // Convert a class to an OpenType | ||
| 130 | public static synchronized OpenType toOpenType(Type t) | ||
| 131 | throws OpenDataException { | ||
| 132 | MappedMXBeanType mt = getMappedType(t); | ||
| 133 | return mt.getOpenType(); | ||
| 134 | } | ||
| 135 | |||
| 136 | public static Object toJavaTypeData(Object openData, Type t) | ||
| 137 | throws OpenDataException, InvalidObjectException { | ||
| 138 | if (openData == null) { | ||
| 139 | return null; | ||
| 140 | } | ||
| 141 | MappedMXBeanType mt = getMappedType(t); | ||
| 142 | return mt.toJavaTypeData(openData); | ||
| 143 | } | ||
| 144 | |||
| 145 | public static Object toOpenTypeData(Object data, Type t) | ||
| 146 | throws OpenDataException { | ||
| 147 | if (data == null) { | ||
| 148 | return null; | ||
| 149 | } | ||
| 150 | MappedMXBeanType mt = getMappedType(t); | ||
| 151 | return mt.toOpenTypeData(data); | ||
| 152 | } | ||
| 153 | |||
| 154 | // Return the mapped open type | ||
| 155 | OpenType getOpenType() { | ||
| 156 | return openType; | ||
| 157 | } | ||
| 158 | |||
| 159 | boolean isBasicType() { | ||
| 160 | return isBasicType; | ||
| 161 | } | ||
| 162 | |||
| 163 | // Return the type name of the mapped open type | ||
| 164 | // For primitive types, the type name is the same as the javaType | ||
| 165 | // but the mapped open type is the wrapper class | ||
| 166 | String getTypeName() { | ||
| 167 | return getMappedTypeClass().getName(); | ||
| 168 | } | ||
| 169 | |||
| 170 | // Return the mapped open type | ||
| 171 | Class getMappedTypeClass() { | ||
| 172 | return mappedTypeClass; | ||
| 173 | } | ||
| 174 | |||
| 175 | abstract Type getJavaType(); | ||
| 176 | |||
| 177 | // return name of the class or the generic type | ||
| 178 | abstract String getName(); | ||
| 179 | |||
| 180 | abstract Object toOpenTypeData(Object javaTypeData) | ||
| 181 | throws OpenDataException; | ||
| 182 | |||
| 183 | abstract Object toJavaTypeData(Object openTypeData) | ||
| 184 | throws OpenDataException, InvalidObjectException; | ||
| 185 | |||
| 186 | // Basic Types - Classes that do not require data conversion | ||
| 187 | // including primitive types and all SimpleType | ||
| 188 | // | ||
| 189 | // Mapped open type: SimpleType for corresponding basic type | ||
| 190 | // | ||
| 191 | // Data Mapping: | ||
| 192 | // T <-> T (no conversion) | ||
| 193 | // | ||
| 194 | static class BasicMXBeanType extends MappedMXBeanType { | ||
| 195 | final Class basicType; | ||
| 196 | BasicMXBeanType(Class c, OpenType openType) { | ||
| 197 | this.basicType = c; | ||
| 198 | this.openType = openType; | ||
| 199 | this.mappedTypeClass = c; | ||
| 200 | this.isBasicType = true; | ||
| 201 | } | ||
| 202 | |||
| 203 | Type getJavaType() { | ||
| 204 | return basicType; | ||
| 205 | } | ||
| 206 | |||
| 207 | String getName() { | ||
| 208 | return basicType.getName(); | ||
| 209 | } | ||
| 210 | |||
| 211 | Object toOpenTypeData(Object data) throws OpenDataException { | ||
| 212 | return data; | ||
| 213 | } | ||
| 214 | |||
| 215 | Object toJavaTypeData(Object data) | ||
| 216 | throws OpenDataException, InvalidObjectException { | ||
| 217 | |||
| 218 | return data; | ||
| 219 | } | ||
| 220 | } | ||
| 221 | |||
| 222 | |||
| 223 | // Enum subclasses | ||
| 224 | // Mapped open type - String | ||
| 225 | // | ||
| 226 | // Data Mapping: | ||
| 227 | // Enum <-> enum's name | ||
| 228 | // | ||
| 229 | static class EnumMXBeanType extends MappedMXBeanType { | ||
| 230 | final Class enumClass; | ||
| 231 | EnumMXBeanType(Class c) { | ||
| 232 | this.enumClass = c; | ||
| 233 | this.openType = STRING; | ||
| 234 | this.mappedTypeClass = String.class; | ||
| 235 | } | ||
| 236 | |||
| 237 | Type getJavaType() { | ||
| 238 | return enumClass; | ||
| 239 | } | ||
| 240 | |||
| 241 | String getName() { | ||
| 242 | return enumClass.getName(); | ||
| 243 | } | ||
| 244 | |||
| 245 | Object toOpenTypeData(Object data) throws OpenDataException { | ||
| 246 | return ((Enum) data).name(); | ||
| 247 | } | ||
| 248 | |||
| 249 | Object toJavaTypeData(Object data) | ||
| 250 | throws OpenDataException, InvalidObjectException { | ||
| 251 | |||
| 252 | try { | ||
| 253 | return Enum.valueOf(enumClass, (String) data); | ||
| 254 | } catch (IllegalArgumentException e) { | ||
| 255 | // missing enum constants | ||
| 256 | final InvalidObjectException ioe = | ||
| 257 | new InvalidObjectException("Enum constant named " + | ||
| 258 | (String) data + " is missing"); | ||
| 259 | ioe.initCause(e); | ||
| 260 | throw ioe; | ||
| 261 | } | ||
| 262 | } | ||
| 263 | } | ||
| 264 | |||
| 265 | // Array E[] | ||
| 266 | // Mapped open type - Array with element of OpenType for E | ||
| 267 | // | ||
| 268 | // Data Mapping: | ||
| 269 | // E[] <-> openTypeData(E)[] | ||
| 270 | // | ||
| 271 | static class ArrayMXBeanType extends MappedMXBeanType { | ||
| 272 | final Class arrayClass; | ||
| 273 | protected MappedMXBeanType componentType; | ||
| 274 | protected MappedMXBeanType baseElementType; | ||
| 275 | |||
| 276 | ArrayMXBeanType(Class c) throws OpenDataException { | ||
| 277 | this.arrayClass = c; | ||
| 278 | this.componentType = getMappedType(c.getComponentType()); | ||
| 279 | |||
| 280 | StringBuilder className = new StringBuilder(); | ||
| 281 | Class et = c; | ||
| 282 | int dim; | ||
| 283 | for (dim = 0; et.isArray(); dim++) { | ||
| 284 | className.append('['); | ||
| 285 | et = et.getComponentType(); | ||
| 286 | } | ||
| 287 | baseElementType = getMappedType(et); | ||
| 288 | if (et.isPrimitive()) { | ||
| 289 | className = new StringBuilder(c.getName()); | ||
| 290 | } else { | ||
| 291 | className.append("L" + baseElementType.getTypeName() + ";"); | ||
| 292 | } | ||
| 293 | try { | ||
| 294 | mappedTypeClass = Class.forName(className.toString()); | ||
| 295 | } catch (ClassNotFoundException e) { | ||
| 296 | final OpenDataException ode = | ||
| 297 | new OpenDataException("Cannot obtain array class"); | ||
| 298 | ode.initCause(e); | ||
| 299 | throw ode; | ||
| 300 | } | ||
| 301 | |||
| 302 | openType = new ArrayType(dim, baseElementType.getOpenType()); | ||
| 303 | } | ||
| 304 | |||
| 305 | protected ArrayMXBeanType() { | ||
| 306 | arrayClass = null; | ||
| 307 | }; | ||
| 308 | |||
| 309 | Type getJavaType() { | ||
| 310 | return arrayClass; | ||
| 311 | } | ||
| 312 | |||
| 313 | String getName() { | ||
| 314 | return arrayClass.getName(); | ||
| 315 | } | ||
| 316 | |||
| 317 | Object toOpenTypeData(Object data) throws OpenDataException { | ||
| 318 | // If the base element type is a basic type | ||
| 319 | // return the data as no conversion is needed. | ||
| 320 | // Primitive types are not converted to wrappers. | ||
| 321 | if (baseElementType.isBasicType()) { | ||
| 322 | return data; | ||
| 323 | } | ||
| 324 | |||
| 325 | final Object[] array = (Object[]) data; | ||
| 326 | final Object[] openArray = (Object[]) | ||
| 327 | Array.newInstance(componentType.getMappedTypeClass(), | ||
| 328 | array.length); | ||
| 329 | int i = 0; | ||
| 330 | for (Object o : array) { | ||
| 331 | if (o == null) { | ||
| 332 | openArray[i] = null; | ||
| 333 | } else { | ||
| 334 | openArray[i] = componentType.toOpenTypeData(o); | ||
| 335 | } | ||
| 336 | i++; | ||
| 337 | } | ||
| 338 | return openArray; | ||
| 339 | } | ||
| 340 | |||
| 341 | |||
| 342 | Object toJavaTypeData(Object data) | ||
| 343 | throws OpenDataException, InvalidObjectException { | ||
| 344 | |||
| 345 | // If the base element type is a basic type | ||
| 346 | // return the data as no conversion is needed. | ||
| 347 | if (baseElementType.isBasicType()) { | ||
| 348 | return data; | ||
| 349 | } | ||
| 350 | |||
| 351 | final Object[] openArray = (Object[]) data; | ||
| 352 | final Object[] array = (Object[]) | ||
| 353 | Array.newInstance((Class) componentType.getJavaType(), | ||
| 354 | openArray.length); | ||
| 355 | int i = 0; | ||
| 356 | for (Object o : openArray) { | ||
| 357 | if (o == null) { | ||
| 358 | array[i] = null; | ||
| 359 | } else { | ||
| 360 | array[i] = componentType.toJavaTypeData(o); | ||
| 361 | } | ||
| 362 | i++; | ||
| 363 | } | ||
| 364 | return array; | ||
| 365 | } | ||
| 366 | |||
| 367 | } | ||
| 368 | |||
| 369 | static class GenericArrayMXBeanType extends ArrayMXBeanType { | ||
| 370 | final GenericArrayType gtype; | ||
| 371 | GenericArrayMXBeanType(GenericArrayType gat) throws OpenDataException { | ||
| 372 | this.gtype = gat; | ||
| 373 | this.componentType = getMappedType(gat.getGenericComponentType()); | ||
| 374 | |||
| 375 | StringBuilder className = new StringBuilder(); | ||
| 376 | Type elementType = gat; | ||
| 377 | int dim; | ||
| 378 | for (dim = 0; elementType instanceof GenericArrayType; dim++) { | ||
| 379 | className.append('['); | ||
| 380 | GenericArrayType et = (GenericArrayType) elementType; | ||
| 381 | elementType = et.getGenericComponentType(); | ||
| 382 | } | ||
| 383 | baseElementType = getMappedType(elementType); | ||
| 384 | if (elementType instanceof Class && ((Class) elementType).isPrimitive()) { | ||
| 385 | className = new StringBuilder(gat.toString()); | ||
| 386 | } else { | ||
| 387 | className.append("L" + baseElementType.getTypeName() + ";"); | ||
| 388 | } | ||
| 389 | try { | ||
| 390 | mappedTypeClass = Class.forName(className.toString()); | ||
| 391 | } catch (ClassNotFoundException e) { | ||
| 392 | final OpenDataException ode = | ||
| 393 | new OpenDataException("Cannot obtain array class"); | ||
| 394 | ode.initCause(e); | ||
| 395 | throw ode; | ||
| 396 | } | ||
| 397 | |||
| 398 | openType = new ArrayType(dim, baseElementType.getOpenType()); | ||
| 399 | } | ||
| 400 | |||
| 401 | Type getJavaType() { | ||
| 402 | return gtype; | ||
| 403 | } | ||
| 404 | |||
| 405 | String getName() { | ||
| 406 | return gtype.toString(); | ||
| 407 | } | ||
| 408 | } | ||
| 409 | |||
| 410 | // List<E> | ||
| 411 | // Mapped open type - Array with element of OpenType for E | ||
| 412 | // | ||
| 413 | // Data Mapping: | ||
| 414 | // List<E> <-> openTypeData(E)[] | ||
| 415 | // | ||
| 416 | static class ListMXBeanType extends MappedMXBeanType { | ||
| 417 | final ParameterizedType javaType; | ||
| 418 | final MappedMXBeanType paramType; | ||
| 419 | final String typeName; | ||
| 420 | |||
| 421 | ListMXBeanType(ParameterizedType pt) throws OpenDataException { | ||
| 422 | this.javaType = pt; | ||
| 423 | |||
| 424 | final Type[] argTypes = pt.getActualTypeArguments(); | ||
| 425 | assert(argTypes.length == 1); | ||
| 426 | |||
| 427 | if (!(argTypes[0] instanceof Class)) { | ||
| 428 | throw new OpenDataException("Element Type for " + pt + | ||
| 429 | " not supported"); | ||
| 430 | } | ||
| 431 | final Class et = (Class) argTypes[0]; | ||
| 432 | if (et.isArray()) { | ||
| 433 | throw new OpenDataException("Element Type for " + pt + | ||
| 434 | " not supported"); | ||
| 435 | } | ||
| 436 | paramType = getMappedType(et); | ||
| 437 | typeName = "List<" + paramType.getName() + ">"; | ||
| 438 | |||
| 439 | try { | ||
| 440 | mappedTypeClass = Class.forName( | ||
| 441 | "[L" + paramType.getTypeName() + ";"); | ||
| 442 | } catch (ClassNotFoundException e) { | ||
| 443 | final OpenDataException ode = | ||
| 444 | new OpenDataException("Array class not found"); | ||
| 445 | ode.initCause(e); | ||
| 446 | throw ode; | ||
| 447 | } | ||
| 448 | openType = new ArrayType(1, paramType.getOpenType()); | ||
| 449 | } | ||
| 450 | |||
| 451 | Type getJavaType() { | ||
| 452 | return javaType; | ||
| 453 | } | ||
| 454 | |||
| 455 | String getName() { | ||
| 456 | return typeName; | ||
| 457 | } | ||
| 458 | |||
| 459 | Object toOpenTypeData(Object data) throws OpenDataException { | ||
| 460 | final List<Object> list = (List<Object>) data; | ||
| 461 | |||
| 462 | final Object[] openArray = (Object[]) | ||
| 463 | Array.newInstance(paramType.getMappedTypeClass(), | ||
| 464 | list.size()); | ||
| 465 | int i = 0; | ||
| 466 | for (Object o : list) { | ||
| 467 | openArray[i++] = paramType.toOpenTypeData(o); | ||
| 468 | } | ||
| 469 | return openArray; | ||
| 470 | } | ||
| 471 | |||
| 472 | Object toJavaTypeData(Object data) | ||
| 473 | throws OpenDataException, InvalidObjectException { | ||
| 474 | |||
| 475 | final Object[] openArray = (Object[]) data; | ||
| 476 | List<Object> result = new ArrayList<Object>(openArray.length); | ||
| 477 | for (Object o : openArray) { | ||
| 478 | result.add(paramType.toJavaTypeData(o)); | ||
| 479 | } | ||
| 480 | return result; | ||
| 481 | } | ||
| 482 | } | ||
| 483 | |||
| 484 | private static final String KEY = "key"; | ||
| 485 | private static final String VALUE = "value"; | ||
| 486 | private static final String[] mapIndexNames = {KEY}; | ||
| 487 | private static final String[] mapItemNames = {KEY, VALUE}; | ||
| 488 | |||
| 489 | // Map<K,V> | ||
| 490 | // Mapped open type - TabularType with row type: | ||
| 491 | // CompositeType: | ||
| 492 | // "key" of openDataType(K) | ||
| 493 | // "value" of openDataType(V) | ||
| 494 | // "key" is the index name | ||
| 495 | // | ||
| 496 | // Data Mapping: | ||
| 497 | // Map<K,V> <-> TabularData | ||
| 498 | // | ||
| 499 | static class MapMXBeanType extends MappedMXBeanType { | ||
| 500 | final ParameterizedType javaType; | ||
| 501 | final MappedMXBeanType keyType; | ||
| 502 | final MappedMXBeanType valueType; | ||
| 503 | final String typeName; | ||
| 504 | |||
| 505 | MapMXBeanType(ParameterizedType pt) throws OpenDataException { | ||
| 506 | this.javaType = pt; | ||
| 507 | |||
| 508 | final Type[] argTypes = pt.getActualTypeArguments(); | ||
| 509 | assert(argTypes.length == 2); | ||
| 510 | this.keyType = getMappedType(argTypes[0]); | ||
| 511 | this.valueType = getMappedType(argTypes[1]); | ||
| 512 | |||
| 513 | |||
| 514 | // FIXME: generate typeName for generic | ||
| 515 | typeName = "Map<" + keyType.getName() + "," + | ||
| 516 | valueType.getName() + ">"; | ||
| 517 | final OpenType[] mapItemTypes = new OpenType[] { | ||
| 518 | keyType.getOpenType(), | ||
| 519 | valueType.getOpenType(), | ||
| 520 | }; | ||
| 521 | final CompositeType rowType = | ||
| 522 | new CompositeType(typeName, | ||
| 523 | typeName, | ||
| 524 | mapItemNames, | ||
| 525 | mapItemNames, | ||
| 526 | mapItemTypes); | ||
| 527 | |||
| 528 | openType = new TabularType(typeName, typeName, rowType, mapIndexNames); | ||
| 529 | mappedTypeClass = javax.management.openmbean.TabularData.class; | ||
| 530 | } | ||
| 531 | |||
| 532 | Type getJavaType() { | ||
| 533 | return javaType; | ||
| 534 | } | ||
| 535 | |||
| 536 | String getName() { | ||
| 537 | return typeName; | ||
| 538 | } | ||
| 539 | |||
| 540 | Object toOpenTypeData(Object data) throws OpenDataException { | ||
| 541 | final Map<Object,Object> map = (Map<Object,Object>) data; | ||
| 542 | final TabularType tabularType = (TabularType) openType; | ||
| 543 | final TabularData table = new TabularDataSupport(tabularType); | ||
| 544 | final CompositeType rowType = tabularType.getRowType(); | ||
| 545 | |||
| 546 | for (Map.Entry entry : map.entrySet()) { | ||
| 547 | final Object key = keyType.toOpenTypeData(entry.getKey()); | ||
| 548 | final Object value = valueType.toOpenTypeData(entry.getValue()); | ||
| 549 | final CompositeData row = | ||
| 550 | new CompositeDataSupport(rowType, | ||
| 551 | mapItemNames, | ||
| 552 | new Object[] {key, value}); | ||
| 553 | table.put(row); | ||
| 554 | } | ||
| 555 | return table; | ||
| 556 | } | ||
| 557 | |||
| 558 | Object toJavaTypeData(Object data) | ||
| 559 | throws OpenDataException, InvalidObjectException { | ||
| 560 | |||
| 561 | final TabularData td = (TabularData) data; | ||
| 562 | |||
| 563 | Map<Object, Object> result = new HashMap<Object, Object>(); | ||
| 564 | for (CompositeData row : (Collection<CompositeData>) td.values()) { | ||
| 565 | Object key = keyType.toJavaTypeData(row.get(KEY)); | ||
| 566 | Object value = valueType.toJavaTypeData(row.get(VALUE)); | ||
| 567 | result.put(key, value); | ||
| 568 | } | ||
| 569 | return result; | ||
| 570 | } | ||
| 571 | } | ||
| 572 | |||
| 573 | private static final Class<?> COMPOSITE_DATA_CLASS = | ||
| 574 | javax.management.openmbean.CompositeData.class; | ||
| 575 | |||
| 576 | // Classes that have a static from method | ||
| 577 | // Mapped open type - CompositeData | ||
| 578 | // | ||
| 579 | // Data Mapping: | ||
| 580 | // Classes <-> CompositeData | ||
| 581 | // | ||
| 582 | // The name and type of items for a class are identified from | ||
| 583 | // the getter methods. For example, a class defines a method: | ||
| 584 | // | ||
| 585 | // public FooType getFoo(); | ||
| 586 | // | ||
| 587 | // The composite data view for this class will contain one | ||
| 588 | // item entry for a "foo" attribute and the item type is | ||
| 589 | // one of the open types defined in the OpenType class that | ||
| 590 | // can be determined in the following manner: | ||
| 591 | // o If FooType is a primitive type, the item type a wrapper | ||
| 592 | // class for the corresponding primitive type (such as | ||
| 593 | // Integer, Long, Boolean, etc). | ||
| 594 | // o If FooType is of type CompositeData or TabularData, | ||
| 595 | // the item type is FooType. | ||
| 596 | // o If FooType is an Enum, the item type is a String and | ||
| 597 | // the value is the name of the enum constant. | ||
| 598 | // o If FooType is a class or an interface other than the above, | ||
| 599 | // the item type is CompositeData. The same convention | ||
| 600 | // can be recursively applied to the FooType class when | ||
| 601 | // constructing the composite data for the "foo" attribute. | ||
| 602 | // o If FooType is an array, the item type is an array and | ||
| 603 | // its element type is determined as described above. | ||
| 604 | // | ||
| 605 | static class CompositeDataMXBeanType extends MappedMXBeanType { | ||
| 606 | final Class<?> javaClass; | ||
| 607 | final boolean isCompositeData; | ||
| 608 | Method fromMethod = null; | ||
| 609 | |||
| 610 | CompositeDataMXBeanType(Class c) throws OpenDataException { | ||
| 611 | this.javaClass = c; | ||
| 612 | this.mappedTypeClass = COMPOSITE_DATA_CLASS; | ||
| 613 | |||
| 614 | // check if a static from method exists | ||
| 615 | try { | ||
| 616 | fromMethod = AccessController.doPrivileged(new PrivilegedExceptionAction<Method>() { | ||
| 617 | public Method run() throws NoSuchMethodException { | ||
| 618 | return javaClass.getMethod("from", COMPOSITE_DATA_CLASS); | ||
| 619 | } | ||
| 620 | }); | ||
| 621 | } catch (PrivilegedActionException e) { | ||
| 622 | // ignore NoSuchMethodException since we allow classes | ||
| 623 | // that has no from method to be embeded in another class. | ||
| 624 | } | ||
| 625 | |||
| 626 | if (COMPOSITE_DATA_CLASS.isAssignableFrom(c)) { | ||
| 627 | // c implements CompositeData - set openType to null | ||
| 628 | // defer generating the CompositeType | ||
| 629 | // until the object is constructed | ||
| 630 | this.isCompositeData = true; | ||
| 631 | this.openType = null; | ||
| 632 | } else { | ||
| 633 | this.isCompositeData = false; | ||
| 634 | |||
| 635 | // Make a CompositeData containing all the getters | ||
| 636 | final Method[] methods = | ||
| 637 | AccessController.doPrivileged(new PrivilegedAction<Method[]>() { | ||
| 638 | public Method[] run() { | ||
| 639 | return javaClass.getMethods(); | ||
| 640 | } | ||
| 641 | }); | ||
| 642 | final List<String> names = new ArrayList<String>(); | ||
| 643 | final List<OpenType> types = new ArrayList<OpenType>(); | ||
| 644 | |||
| 645 | /* Select public methods that look like "T getX()" or "boolean | ||
| 646 | isX()", where T is not void and X is not the empty | ||
| 647 | string. Exclude "Class getClass()" inherited from Object. */ | ||
| 648 | for (int i = 0; i < methods.length; i++) { | ||
| 649 | final Method method = methods[i]; | ||
| 650 | final String name = method.getName(); | ||
| 651 | final Type type = method.getGenericReturnType(); | ||
| 652 | final String rest; | ||
| 653 | if (name.startsWith("get")) { | ||
| 654 | rest = name.substring(3); | ||
| 655 | } else if (name.startsWith("is") && | ||
| 656 | type instanceof Class && | ||
| 657 | ((Class) type) == boolean.class) { | ||
| 658 | rest = name.substring(2); | ||
| 659 | } else { | ||
| 660 | // ignore non-getter methods | ||
| 661 | continue; | ||
| 662 | } | ||
| 663 | |||
| 664 | if (rest.equals("") || | ||
| 665 | method.getParameterTypes().length > 0 || | ||
| 666 | type == void.class || | ||
| 667 | rest.equals("Class")) { | ||
| 668 | |||
| 669 | // ignore non-getter methods | ||
| 670 | continue; | ||
| 671 | } | ||
| 672 | names.add(decapitalize(rest)); | ||
| 673 | types.add(toOpenType(type)); | ||
| 674 | } | ||
| 675 | |||
| 676 | final String[] nameArray = names.toArray(new String[0]); | ||
| 677 | openType = new CompositeType(c.getName(), | ||
| 678 | c.getName(), | ||
| 679 | nameArray, // field names | ||
| 680 | nameArray, // field descriptions | ||
| 681 | types.toArray(new OpenType[0])); | ||
| 682 | } | ||
| 683 | } | ||
| 684 | |||
| 685 | Type getJavaType() { | ||
| 686 | return javaClass; | ||
| 687 | } | ||
| 688 | |||
| 689 | String getName() { | ||
| 690 | return javaClass.getName(); | ||
| 691 | } | ||
| 692 | |||
| 693 | Object toOpenTypeData(Object data) throws OpenDataException { | ||
| 694 | if (data instanceof MemoryUsage) { | ||
| 695 | return MemoryUsageCompositeData.toCompositeData((MemoryUsage) data); | ||
| 696 | } | ||
| 697 | |||
| 698 | if (data instanceof ThreadInfo) { | ||
| 699 | return ThreadInfoCompositeData.toCompositeData((ThreadInfo) data); | ||
| 700 | } | ||
| 701 | |||
| 702 | if (data instanceof LockInfo) { | ||
| 703 | if (data instanceof java.lang.management.MonitorInfo) { | ||
| 704 | return MonitorInfoCompositeData.toCompositeData((MonitorInfo) data); | ||
| 705 | } | ||
| 706 | return LockDataConverter.toLockInfoCompositeData((LockInfo) data); | ||
| 707 | } | ||
| 708 | |||
| 709 | if (data instanceof MemoryNotificationInfo) { | ||
| 710 | return MemoryNotifInfoCompositeData. | ||
| 711 | toCompositeData((MemoryNotificationInfo) data); | ||
| 712 | } | ||
| 713 | |||
| 714 | if (data instanceof VMOption) { | ||
| 715 | return VMOptionCompositeData.toCompositeData((VMOption) data); | ||
| 716 | } | ||
| 717 | |||
| 718 | if (isCompositeData) { | ||
| 719 | // Classes that implement CompositeData | ||
| 720 | // | ||
| 721 | // construct a new CompositeDataSupport object | ||
| 722 | // so that no other classes are sent over the wire | ||
| 723 | CompositeData cd = (CompositeData) data; | ||
| 724 | CompositeType ct = cd.getCompositeType(); | ||
| 725 | String[] itemNames = (String[]) ct.keySet().toArray(new String[0]); | ||
| 726 | Object[] itemValues = cd.getAll(itemNames); | ||
| 727 | return new CompositeDataSupport(ct, itemNames, itemValues); | ||
| 728 | } | ||
| 729 | |||
| 730 | throw new OpenDataException(javaClass.getName() + | ||
| 731 | " is not supported for platform MXBeans"); | ||
| 732 | } | ||
| 733 | |||
| 734 | Object toJavaTypeData(Object data) | ||
| 735 | throws OpenDataException, InvalidObjectException { | ||
| 736 | |||
| 737 | if (fromMethod == null) { | ||
| 738 | throw new AssertionError("Does not support data conversion"); | ||
| 739 | } | ||
| 740 | |||
| 741 | try { | ||
| 742 | return fromMethod.invoke(null, data); | ||
| 743 | } catch (IllegalAccessException e) { | ||
| 744 | // should never reach here | ||
| 745 | throw new AssertionError(e); | ||
| 746 | } catch (InvocationTargetException e) { | ||
| 747 | final OpenDataException ode = | ||
| 748 | new OpenDataException("Failed to invoke " + | ||
| 749 | fromMethod.getName() + " to convert CompositeData " + | ||
| 750 | " to " + javaClass.getName()); | ||
| 751 | ode.initCause(e); | ||
| 752 | throw ode; | ||
| 753 | } | ||
| 754 | } | ||
| 755 | } | ||
| 756 | |||
| 757 | private static class InProgress extends OpenType { | ||
| 758 | private static final String description = | ||
| 759 | "Marker to detect recursive type use -- internal use only!"; | ||
| 760 | |||
| 761 | InProgress() throws OpenDataException { | ||
| 762 | super("java.lang.String", "java.lang.String", description); | ||
| 763 | } | ||
| 764 | |||
| 765 | public String toString() { | ||
| 766 | return description; | ||
| 767 | } | ||
| 768 | |||
| 769 | public int hashCode() { | ||
| 770 | return 0; | ||
| 771 | } | ||
| 772 | |||
| 773 | public boolean equals(Object o) { | ||
| 774 | return false; | ||
| 775 | } | ||
| 776 | |||
| 777 | public boolean isValue(Object o) { | ||
| 778 | return false; | ||
| 779 | } | ||
| 780 | private static final long serialVersionUID = -3413063475064374490L; | ||
| 781 | } | ||
| 782 | private static final OpenType inProgress; | ||
| 783 | static { | ||
| 784 | OpenType t; | ||
| 785 | try { | ||
| 786 | t = new InProgress(); | ||
| 787 | } catch (OpenDataException e) { | ||
| 788 | // Should not reach here | ||
| 789 | throw new AssertionError(e); | ||
| 790 | } | ||
| 791 | inProgress = t; | ||
| 792 | } | ||
| 793 | |||
| 794 | private static final OpenType[] simpleTypes = { | ||
| 795 | BIGDECIMAL, BIGINTEGER, BOOLEAN, BYTE, CHARACTER, DATE, | ||
| 796 | DOUBLE, FLOAT, INTEGER, LONG, OBJECTNAME, SHORT, STRING, | ||
| 797 | VOID, | ||
| 798 | }; | ||
| 799 | static { | ||
| 800 | try { | ||
| 801 | for (int i = 0; i < simpleTypes.length; i++) { | ||
| 802 | final OpenType t = simpleTypes[i]; | ||
| 803 | Class c; | ||
| 804 | try { | ||
| 805 | c = Class.forName(t.getClassName(), false, | ||
| 806 | String.class.getClassLoader()); | ||
| 807 | MappedMXBeanType.newBasicType(c, t); | ||
| 808 | } catch (ClassNotFoundException e) { | ||
| 809 | // the classes that these predefined types declare | ||
| 810 | // must exist! | ||
| 811 | throw new AssertionError(e); | ||
| 812 | } catch (OpenDataException e) { | ||
| 813 | throw new AssertionError(e); | ||
| 814 | } | ||
| 815 | |||
| 816 | if (c.getName().startsWith("java.lang.")) { | ||
| 817 | try { | ||
| 818 | final Field typeField = c.getField("TYPE"); | ||
| 819 | final Class primitiveType = (Class) typeField.get(null); | ||
| 820 | MappedMXBeanType.newBasicType(primitiveType, t); | ||
| 821 | } catch (NoSuchFieldException e) { | ||
| 822 | // OK: must not be a primitive wrapper | ||
| 823 | } catch (IllegalAccessException e) { | ||
| 824 | // Should not reach here | ||
| 825 | throw new AssertionError(e); | ||
| 826 | } | ||
| 827 | } | ||
| 828 | } | ||
| 829 | } catch (OpenDataException e) { | ||
| 830 | throw new AssertionError(e); | ||
| 831 | } | ||
| 832 | } | ||
| 833 | |||
| 834 | /** | ||
| 835 | * Utility method to take a string and convert it to normal Java variable | ||
| 836 | * name capitalization. This normally means converting the first | ||
| 837 | * character from upper case to lower case, but in the (unusual) special | ||
| 838 | * case when there is more than one character and both the first and | ||
| 839 | * second characters are upper case, we leave it alone. | ||
| 840 | * <p> | ||
| 841 | * Thus "FooBah" becomes "fooBah" and "X" becomes "x", but "URL" stays | ||
| 842 | * as "URL". | ||
| 843 | * | ||
| 844 | * @param name The string to be decapitalized. | ||
| 845 | * @return The decapitalized version of the string. | ||
| 846 | */ | ||
| 847 | private static String decapitalize(String name) { | ||
| 848 | if (name == null || name.length() == 0) { | ||
| 849 | return name; | ||
| 850 | } | ||
| 851 | if (name.length() > 1 && Character.isUpperCase(name.charAt(1)) && | ||
| 852 | Character.isUpperCase(name.charAt(0))){ | ||
| 853 | return name; | ||
| 854 | } | ||
| 855 | char chars[] = name.toCharArray(); | ||
| 856 | chars[0] = Character.toLowerCase(chars[0]); | ||
| 857 | return new String(chars); | ||
| 858 | } | ||
| 859 | |||
| 860 | } | ||