1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2010 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 * 25 */ 26 27 package com.sun.solaris.service.pools; 28 29 /** 30 * The <code>Value</code> class represents a pools value. 31 */ 32 public class Value { 33 34 private long _this; 35 36 /** 37 * Constructor. Only for use from native code. 38 * @param pointer A pointer to a C value. 39 */ Value(long pointer)40 private Value(long pointer) 41 { 42 _this = pointer; 43 } 44 45 /** 46 * Constructor 47 * @param name The name of the value. 48 * @throws PoolsException If there is an error whilst 49 * allocating the value. 50 */ Value(String name)51 public Value(String name) throws PoolsException 52 { 53 if ((_this = PoolInternal.pool_value_alloc()) == 0) 54 throw new PoolsException(); 55 setName(name); 56 } 57 58 /** 59 * Constructor 60 * @param name The name of the value. 61 * @param value The value of the value. 62 * @throws PoolsException If there is an error whilst 63 * allocating the value. 64 */ Value(String name, long value)65 public Value(String name, long value) throws PoolsException 66 { 67 this(name); 68 setValue(value); 69 } 70 71 /** 72 * Constructor 73 * @param name The name of the value. 74 * @param value The value of the value. 75 * @param s Indicates if the value is signed or not. 76 * @throws PoolsException If there is an error whilst 77 * allocating the value. 78 */ Value(String name, long value, boolean s)79 public Value(String name, long value, boolean s) throws PoolsException 80 { 81 this(name); 82 setValue(value, s); 83 } 84 85 /** 86 * Constructor 87 * @param name The name of the value. 88 * @param value The value of the value. 89 * @throws PoolsException If there is an error whilst 90 * allocating the value. 91 */ Value(String name, String value)92 public Value(String name, String value) throws PoolsException 93 { 94 this(name); 95 setValue(value); 96 } 97 98 /** 99 * Constructor 100 * @param name The name of the value. 101 * @param value The value of the value. 102 * @throws PoolsException If there is an error whilst 103 * allocating the value. 104 */ Value(String name, boolean value)105 public Value(String name, boolean value) throws PoolsException 106 { 107 this(name); 108 setValue(value); 109 } 110 111 /** 112 * Constructor 113 * @param name The name of the value. 114 * @param value The value of the value. 115 * @throws PoolsException If there is an error whilst 116 * allocating the value. 117 */ Value(String name, double value)118 public Value(String name, double value) throws PoolsException 119 { 120 this(name); 121 setValue(value); 122 } 123 124 125 private boolean _locked = false; 126 127 /** 128 * Check whether the value is locked or not 129 * @return returns the value of _locked 130 */ islocked()131 public boolean islocked() throws PoolsException 132 { 133 return (_locked); 134 } 135 136 /** 137 * Lock the value 138 */ lock()139 public void lock() throws PoolsException 140 { 141 _locked = true; 142 } 143 144 /** 145 * Unlock the value 146 */ unlock()147 public void unlock() throws PoolsException 148 { 149 _locked = false; 150 } 151 152 /** 153 * Explicitly reclaim the memory (if not locked) 154 * allocated for this value by the C proxy. 155 */ close()156 public void close() 157 { 158 if (_locked == false) { 159 if (_this != 0) { 160 PoolInternal.pool_value_free(_this); 161 _this = 0; 162 } 163 } 164 } 165 166 /** 167 * Reclaim the memory allocated for this value by the C 168 * proxy. 169 * 170 * @throws Throwable If freeing this configuration fails. 171 */ finalize()172 protected void finalize() throws Throwable 173 { 174 try 175 { 176 unlock(); 177 close(); 178 } 179 finally 180 { 181 super.finalize(); 182 } 183 } 184 185 /** 186 * Name this value. 187 * 188 * @param name The name to set for this value. 189 */ setName(String name)190 public void setName(String name) 191 { 192 PoolInternal.pool_value_set_name(_this, name); 193 } 194 195 /** 196 * Set this value to take the supplied signed long value. 197 * 198 * @param value The value to which this value should be set. 199 */ setValue(long value)200 public void setValue(long value) 201 { 202 PoolInternal.pool_value_set_int64(_this, value); 203 } 204 205 /** 206 * Set this value to take the supplied long value. 207 * 208 * @param value The value to which this value should be set. 209 * @param s Is the value signed or unsigned. 210 */ setValue(long value, boolean s)211 public void setValue(long value, boolean s) 212 { 213 if (s) 214 setValue(value); 215 PoolInternal.pool_value_set_uint64(_this, value); 216 } 217 218 /** 219 * Set this value to take the supplied string value. 220 * 221 * @param value The value to which this value should be set. 222 * @throws PoolsExecption If the setting of the value fails. 223 */ setValue(String value)224 public void setValue(String value) throws PoolsException 225 { 226 if (PoolInternal.pool_value_set_string(_this, value) != 227 PoolInternal.PO_SUCCESS) 228 throw new PoolsException(); 229 } 230 231 /** 232 * Set this value to take the supplied boolean value. 233 * 234 * @param value The value to which this value should be set. 235 */ setValue(boolean value)236 public void setValue(boolean value) 237 { 238 if (value == true) 239 PoolInternal.pool_value_set_bool(_this, (short)1); 240 else 241 PoolInternal.pool_value_set_bool(_this, (short)0); 242 } 243 244 /** 245 * Set this value to take the supplied double value. 246 * 247 * @param value The value to which this value should be set. 248 */ setValue(double value)249 public void setValue(double value) 250 { 251 PoolInternal.pool_value_set_double(_this, value); 252 } 253 254 /** 255 * Returns the name of the value. 256 * 257 * @return the name of the value. 258 */ getName()259 public String getName() 260 { 261 return (PoolInternal.pool_value_get_name(_this)); 262 } 263 264 /** 265 * Returns the pointer to the native value represented by this 266 * object. 267 * 268 * @return the pointer to the native value represented by this 269 * object. 270 */ getValue()271 public long getValue() 272 { 273 return (_this); 274 } 275 276 /** 277 * Returns the type of this object. 278 * 279 * @return the type of this object. 280 */ getType()281 public int getType() 282 { 283 return (PoolInternal.pool_value_get_type(_this)); 284 } 285 286 /** 287 * Returns a string representation of this value. 288 * 289 * @return a string representation of this value. 290 */ toString()291 public String toString() 292 { 293 int type = PoolInternal.pool_value_get_type(_this); 294 295 try { 296 if (type == PoolInternal.POC_INT || 297 type == PoolInternal.POC_UINT) 298 return (String.valueOf(getLong())); 299 if (type == PoolInternal.POC_STRING) 300 return getString(); 301 if (type == PoolInternal.POC_BOOL) 302 return (String.valueOf(getBool())); 303 if (type == PoolInternal.POC_DOUBLE) 304 return (String.valueOf(getDouble())); 305 } 306 catch (PoolsException pe) { 307 return pe.toString(); 308 } 309 return ""; /* Stop the compiler complaining */ 310 } 311 312 /** 313 * Returns the value as a UnsignedInt64. 314 * 315 * @return the value as a UnsignedInt64. 316 * @throws PoolsException if the value is not an 317 * UnsignedInt64. 318 */ getUnsignedInt64()319 public final UnsignedInt64 getUnsignedInt64() throws PoolsException 320 { 321 return (getUnsignedInt64Value(_this)); 322 } 323 324 /** 325 * Returns the value as a long. 326 * 327 * @return the value as a long. 328 * @throws PoolsException if the value is not a long. 329 */ getLong()330 public final long getLong() throws PoolsException 331 { 332 return (getLongValue(_this)); 333 } 334 335 /** 336 * Returns the value as a String. 337 * 338 * @return the value as a String. 339 * @throws PoolsException if the value is not a String. 340 */ getString()341 public final String getString() throws PoolsException 342 { 343 return (getStringValue(_this)); 344 } 345 346 /** 347 * Returns the value as a boolean. 348 * 349 * @return the value as a boolean. 350 * @throws PoolsException if the value is not a boolean. 351 */ getBool()352 public final boolean getBool() throws PoolsException 353 { 354 return (getBoolValue(_this)); 355 } 356 357 /** 358 * Returns the value as a double. 359 * 360 * @return the value as a double. 361 * @throws PoolsException if the value is not a double. 362 */ getDouble()363 public final double getDouble() throws PoolsException 364 { 365 return (getDoubleValue(_this)); 366 } 367 368 /** 369 * Returns the value as a UnsignedInt64. 370 * 371 * @param pointer the native value to be accessed. 372 * @return the value as a UnsignedInt64. 373 */ getUnsignedInt64Value( long pointer)374 private final static native UnsignedInt64 getUnsignedInt64Value( 375 long pointer); 376 377 /** 378 * Returns the value as a long. 379 * 380 * @param pointer the native value to be accessed. 381 * @return the value as a long. 382 */ getLongValue(long pointer)383 private final static native long getLongValue(long pointer); 384 385 /** 386 * Returns the value as a String. 387 * 388 * @param pointer the native value to be accessed. 389 * @return the value as a String. 390 */ getStringValue(long pointer)391 private final static native String getStringValue(long pointer); 392 393 /** 394 * Returns the value as a boolean. 395 * 396 * @param pointer the native value to be accessed. 397 * @return the value as a boolean. 398 */ getBoolValue(long pointer)399 private final static native boolean getBoolValue(long pointer); 400 401 /** 402 * Returns the value as a double. 403 * 404 * @param pointer the native value to be accessed. 405 * @return the value as a double. 406 */ getDoubleValue(long pointer)407 private final static native double getDoubleValue(long pointer); 408 } 409