| | |
| | | import java.util.concurrent.locks.Lock; |
| | | |
| | | import org.opends.server.api.Backend; |
| | | import org.opends.server.api.ConfigurableComponent; |
| | | import org.opends.server.api.EntryCache; |
| | | import org.opends.server.admin.server.ConfigurationChangeListener; |
| | | import org.opends.server.admin.std.server.SoftReferenceEntryCacheCfg; |
| | | import org.opends.server.config.ConfigAttribute; |
| | | import org.opends.server.config.ConfigEntry; |
| | | import org.opends.server.config.ConfigException; |
| | | import org.opends.server.config.IntegerWithUnitConfigAttribute; |
| | | import org.opends.server.config.StringConfigAttribute; |
| | |
| | | import org.opends.server.types.ConfigChangeResult; |
| | | import org.opends.server.types.DN; |
| | | import org.opends.server.types.Entry; |
| | | import org.opends.server.types.ErrorLogCategory; |
| | | import org.opends.server.types.ErrorLogSeverity; |
| | | import org.opends.server.types.InitializationException; |
| | | import org.opends.server.types.LockManager; |
| | | import org.opends.server.types.LockType; |
| | | import org.opends.server.types.ResultCode; |
| | | import org.opends.server.types.SearchFilter; |
| | | |
| | | |
| | | import static org.opends.server.config.ConfigConstants.*; |
| | | import static org.opends.server.loggers.debug.DebugLogger.debugCaught; |
| | | import static org.opends.server.loggers.debug.DebugLogger.debugEnabled; |
| | | import org.opends.server.types.DebugLogLevel; |
| | | import static org.opends.server.loggers.Error.*; |
| | | import static org.opends.server.messages.ExtensionsMessages.*; |
| | | import static org.opends.server.messages.MessageHandler.*; |
| | | import static org.opends.server.util.ServerConstants.*; |
| | | import static org.opends.server.util.StaticUtils.*; |
| | | |
| | | |
| | | |
| | |
| | | * running low on memory. |
| | | */ |
| | | public class SoftReferenceEntryCache |
| | | extends EntryCache |
| | | implements ConfigurableComponent, Runnable |
| | | extends EntryCache <SoftReferenceEntryCacheCfg> |
| | | implements |
| | | ConfigurationChangeListener<SoftReferenceEntryCacheCfg>, |
| | | Runnable |
| | | { |
| | | |
| | | |
| | | |
| | | /** |
| | | * The set of time units that will be used for expressing the task retention |
| | | * time. |
| | | */ |
| | | // The set of time units that will be used for expressing the task retention |
| | | // time. |
| | | private static final LinkedHashMap<String,Double> timeUnits = |
| | | new LinkedHashMap<String,Double>(); |
| | | |
| | | |
| | | |
| | | // The mapping between entry DNs and their corresponding entries. |
| | | private ConcurrentHashMap<DN,SoftReference<CacheEntry>> dnMap; |
| | | |
| | |
| | | |
| | | |
| | | /** |
| | | * Initializes this entry cache implementation so that it will be available |
| | | * for storing and retrieving entries. |
| | | * |
| | | * @param configEntry The configuration entry containing the settings to use |
| | | * for this entry cache. |
| | | * |
| | | * @throws ConfigException If there is a problem with the provided |
| | | * configuration entry that would prevent this |
| | | * entry cache from being used. |
| | | * |
| | | * @throws InitializationException If a problem occurs during the |
| | | * initialization process that is not |
| | | * related to the configuration. |
| | | * {@inheritDoc} |
| | | */ |
| | | public void initializeEntryCache(ConfigEntry configEntry) |
| | | throws ConfigException, InitializationException |
| | | public void initializeEntryCache( |
| | | SoftReferenceEntryCacheCfg configuration |
| | | ) |
| | | throws ConfigException, InitializationException |
| | | { |
| | | configuration.addSoftReferenceChangeListener (this); |
| | | configEntryDN = configuration.dn(); |
| | | |
| | | dnMap.clear(); |
| | | idMap.clear(); |
| | | |
| | | |
| | | configEntryDN = configEntry.getDN(); |
| | | |
| | | |
| | | // Determine the lock timeout to use when interacting with the lock manager. |
| | | int msgID = MSGID_SOFTREFCACHE_DESCRIPTION_LOCK_TIMEOUT; |
| | | IntegerWithUnitConfigAttribute lockTimeoutStub = |
| | | new IntegerWithUnitConfigAttribute(ATTR_SOFTREFCACHE_LOCK_TIMEOUT, |
| | | getMessage(msgID), false, timeUnits, |
| | | true, 0, false, 0); |
| | | try |
| | | { |
| | | IntegerWithUnitConfigAttribute lockTimeoutAttr = |
| | | (IntegerWithUnitConfigAttribute) |
| | | configEntry.getConfigAttribute(lockTimeoutStub); |
| | | if (lockTimeoutAttr == null) |
| | | { |
| | | // This is fine -- we'll just use the default. |
| | | } |
| | | else |
| | | { |
| | | lockTimeout = lockTimeoutAttr.activeCalculatedValue(); |
| | | } |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | |
| | | // Log an error message. |
| | | logError(ErrorLogCategory.CONFIGURATION, ErrorLogSeverity.SEVERE_ERROR, |
| | | MSGID_SOFTREFCACHE_CANNOT_DETERMINE_LOCK_TIMEOUT, |
| | | String.valueOf(configEntryDN), getExceptionMessage(e), |
| | | lockTimeout); |
| | | } |
| | | |
| | | |
| | | // Determine the set of cache filters that can be used to control the |
| | | // entries that should be included in the cache. |
| | | includeFilters = new HashSet<SearchFilter>(); |
| | | msgID = MSGID_SOFTREFCACHE_DESCRIPTION_INCLUDE_FILTERS; |
| | | StringConfigAttribute includeStub = |
| | | new StringConfigAttribute(ATTR_SOFTREFCACHE_INCLUDE_FILTER, |
| | | getMessage(msgID), false, true, false); |
| | | try |
| | | { |
| | | StringConfigAttribute includeAttr = |
| | | (StringConfigAttribute) configEntry.getConfigAttribute(includeStub); |
| | | if (includeAttr == null) |
| | | { |
| | | // This is fine -- we'll just use the default. |
| | | } |
| | | else |
| | | { |
| | | List<String> filterStrings = includeAttr.activeValues(); |
| | | if ((filterStrings == null) || filterStrings.isEmpty()) |
| | | { |
| | | // There are no include filters, so we'll allow anything by default. |
| | | } |
| | | else |
| | | { |
| | | for (String filterString : filterStrings) |
| | | { |
| | | try |
| | | { |
| | | includeFilters.add( |
| | | SearchFilter.createFilterFromString(filterString)); |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | |
| | | // We couldn't decode this filter. Log a warning and continue. |
| | | logError(ErrorLogCategory.CONFIGURATION, |
| | | ErrorLogSeverity.SEVERE_WARNING, |
| | | MSGID_SOFTREFCACHE_CANNOT_DECODE_INCLUDE_FILTER, |
| | | String.valueOf(configEntryDN), filterString, |
| | | getExceptionMessage(e)); |
| | | } |
| | | } |
| | | |
| | | if (includeFilters.isEmpty()) |
| | | { |
| | | logError(ErrorLogCategory.CONFIGURATION, |
| | | ErrorLogSeverity.SEVERE_ERROR, |
| | | MSGID_SOFTREFCACHE_CANNOT_DECODE_ANY_INCLUDE_FILTERS, |
| | | String.valueOf(configEntryDN)); |
| | | } |
| | | } |
| | | } |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | |
| | | // Log an error message. |
| | | logError(ErrorLogCategory.CONFIGURATION, ErrorLogSeverity.SEVERE_ERROR, |
| | | MSGID_SOFTREFCACHE_CANNOT_DETERMINE_INCLUDE_FILTERS, |
| | | String.valueOf(configEntryDN), getExceptionMessage(e)); |
| | | } |
| | | |
| | | |
| | | // Determine the set of cache filters that can be used to control the |
| | | // entries that should be excluded from the cache. |
| | | excludeFilters = new HashSet<SearchFilter>(); |
| | | msgID = MSGID_SOFTREFCACHE_DESCRIPTION_EXCLUDE_FILTERS; |
| | | StringConfigAttribute excludeStub = |
| | | new StringConfigAttribute(ATTR_SOFTREFCACHE_EXCLUDE_FILTER, |
| | | getMessage(msgID), false, true, false); |
| | | try |
| | | { |
| | | StringConfigAttribute excludeAttr = |
| | | (StringConfigAttribute) configEntry.getConfigAttribute(excludeStub); |
| | | if (excludeAttr == null) |
| | | { |
| | | // This is fine -- we'll just use the default. |
| | | } |
| | | else |
| | | { |
| | | List<String> filterStrings = excludeAttr.activeValues(); |
| | | if ((filterStrings == null) || filterStrings.isEmpty()) |
| | | { |
| | | // There are no exclude filters, so we'll allow anything by default. |
| | | } |
| | | else |
| | | { |
| | | for (String filterString : filterStrings) |
| | | { |
| | | try |
| | | { |
| | | excludeFilters.add( |
| | | SearchFilter.createFilterFromString(filterString)); |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | |
| | | // We couldn't decode this filter. Log a warning and continue. |
| | | logError(ErrorLogCategory.CONFIGURATION, |
| | | ErrorLogSeverity.SEVERE_WARNING, |
| | | MSGID_SOFTREFCACHE_CANNOT_DECODE_EXCLUDE_FILTER, |
| | | String.valueOf(configEntryDN), filterString, |
| | | getExceptionMessage(e)); |
| | | } |
| | | } |
| | | |
| | | if (excludeFilters.isEmpty()) |
| | | { |
| | | logError(ErrorLogCategory.CONFIGURATION, |
| | | ErrorLogSeverity.SEVERE_ERROR, |
| | | MSGID_SOFTREFCACHE_CANNOT_DECODE_ANY_EXCLUDE_FILTERS, |
| | | String.valueOf(configEntryDN)); |
| | | } |
| | | } |
| | | } |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | |
| | | // Log an error message. |
| | | logError(ErrorLogCategory.CONFIGURATION, ErrorLogSeverity.SEVERE_ERROR, |
| | | MSGID_SOFTREFCACHE_CANNOT_DETERMINE_EXCLUDE_FILTERS, |
| | | String.valueOf(configEntryDN), getExceptionMessage(e)); |
| | | } |
| | | // Read configuration and apply changes. |
| | | boolean applyChanges = true; |
| | | EntryCacheCommon.ConfigErrorHandler errorHandler = |
| | | EntryCacheCommon.getConfigErrorHandler ( |
| | | EntryCacheCommon.ConfigPhase.PHASE_INIT, null, null |
| | | ); |
| | | processEntryCacheConfig (configuration, applyChanges, errorHandler); |
| | | } |
| | | |
| | | |
| | | |
| | | /** |
| | | * Performs any necessary cleanup work (e.g., flushing all cached entries and |
| | | * releasing any other held resources) that should be performed when the |
| | | * server is to be shut down or the entry cache destroyed or replaced. |
| | | * {@inheritDoc} |
| | | */ |
| | | public void finalizeEntryCache() |
| | | { |
| | |
| | | |
| | | |
| | | /** |
| | | * Indicates whether the entry cache currently contains the entry with the |
| | | * specified DN. This method may be called without holding any locks if a |
| | | * point-in-time check is all that is required. |
| | | * |
| | | * @param entryDN The DN for which to make the determination. |
| | | * |
| | | * @return <CODE>true</CODE> if the entry cache currently contains the entry |
| | | * with the specified DN, or <CODE>false</CODE> if not. |
| | | * {@inheritDoc} |
| | | */ |
| | | public boolean containsEntry(DN entryDN) |
| | | { |
| | |
| | | |
| | | |
| | | /** |
| | | * Retrieves the entry with the specified DN from the cache. The caller |
| | | * should have already acquired a read or write lock for the entry if such |
| | | * protection is needed. |
| | | * |
| | | * @param entryDN The DN of the entry to retrieve. |
| | | * |
| | | * @return The requested entry if it is present in the cache, or |
| | | * <CODE>null</CODE> if it is not present. |
| | | * {@inheritDoc} |
| | | */ |
| | | public Entry getEntry(DN entryDN) |
| | | { |
| | |
| | | |
| | | |
| | | /** |
| | | * Retrieves the entry ID for the entry with the specified DN from the cache. |
| | | * The caller should have already acquired a read or write lock for the entry |
| | | * if such protection is needed. |
| | | * |
| | | * @param entryDN The DN of the entry for which to retrieve the entry ID. |
| | | * |
| | | * @return The entry ID for the requested entry, or -1 if it is not present |
| | | * in the cache. |
| | | * {@inheritDoc} |
| | | */ |
| | | public long getEntryID(DN entryDN) |
| | | { |
| | |
| | | |
| | | |
| | | /** |
| | | * Retrieves the entry with the specified DN from the cache, obtaining a lock |
| | | * on the entry before it is returned. If the entry is present in the cache, |
| | | * then a lock will be obtained for that entry and appended to the provided |
| | | * list before the entry is returned. If the entry is not present, then no |
| | | * lock will be obtained. |
| | | * |
| | | * @param entryDN The DN of the entry to retrieve. |
| | | * @param lockType The type of lock to obtain (it may be <CODE>NONE</CODE>). |
| | | * @param lockList The list to which the obtained lock will be added (note |
| | | * that no lock will be added if the lock type was |
| | | * <CODE>NONE</CODE>). |
| | | * |
| | | * @return The requested entry if it is present in the cache, or |
| | | * <CODE>null</CODE> if it is not present. |
| | | * {@inheritDoc} |
| | | */ |
| | | public Entry getEntry(DN entryDN, LockType lockType, |
| | | List<Lock> lockList) |
| | |
| | | |
| | | |
| | | /** |
| | | * Retrieves the requested entry if it is present in the cache, obtaining a |
| | | * lock on the entry before it is returned. If the entry is present in the |
| | | * cache, then a lock will be obtained for that entry and appended to the |
| | | * provided list before the entry is returned. If the entry is not present, |
| | | * then no lock will be obtained. |
| | | * |
| | | * @param backend The backend associated with the entry to retrieve. |
| | | * @param entryID The entry ID within the provided backend for the |
| | | * specified entry. |
| | | * @param lockType The type of lock to obtain (it may be <CODE>NONE</CODE>). |
| | | * @param lockList The list to which the obtained lock will be added (note |
| | | * that no lock will be added if the lock type was |
| | | * <CODE>NONE</CODE>). |
| | | * |
| | | * @return The requested entry if it is present in the cache, or |
| | | * <CODE>null</CODE> if it is not present. |
| | | * {@inheritDoc} |
| | | */ |
| | | public Entry getEntry(Backend backend, long entryID, |
| | | LockType lockType, List<Lock> lockList) |
| | |
| | | |
| | | |
| | | /** |
| | | * Stores the provided entry in the cache. Note that the mechanism that it |
| | | * uses to achieve this is implementation-dependent, and it is acceptable for |
| | | * the entry to not actually be stored in any cache. |
| | | * |
| | | * @param entry The entry to store in the cache. |
| | | * @param backend The backend with which the entry is associated. |
| | | * @param entryID The entry ID within the provided backend that uniquely |
| | | * identifies the specified entry. |
| | | * {@inheritDoc} |
| | | */ |
| | | public void putEntry(Entry entry, Backend backend, long entryID) |
| | | { |
| | |
| | | |
| | | |
| | | /** |
| | | * Stores the provided entry in the cache only if it does not conflict with an |
| | | * entry that already exists. Note that the mechanism that it uses to achieve |
| | | * this is implementation-dependent, and it is acceptable for the entry to not |
| | | * actually be stored in any cache. However, this method must not overwrite |
| | | * an existing version of the entry. |
| | | * |
| | | * @param entry The entry to store in the cache. |
| | | * @param backend The backend with which the entry is associated. |
| | | * @param entryID The entry ID within the provided backend that uniquely |
| | | * identifies the specified entry. |
| | | * |
| | | * @return <CODE>false</CODE> if an existing entry or some other problem |
| | | * prevented the method from completing successfully, or |
| | | * <CODE>true</CODE> if there was no conflict and the entry was |
| | | * either stored or the cache determined that this entry should never |
| | | * be cached for some reason. |
| | | * {@inheritDoc} |
| | | */ |
| | | public boolean putEntryIfAbsent(Entry entry, Backend backend, |
| | | long entryID) |
| | |
| | | |
| | | |
| | | /** |
| | | * Removes the specified entry from the cache. |
| | | * |
| | | * @param entryDN The DN of the entry to remove from the cache. |
| | | * {@inheritDoc} |
| | | */ |
| | | public void removeEntry(DN entryDN) |
| | | { |
| | |
| | | |
| | | |
| | | /** |
| | | * Removes all entries from the cache. The cache should still be available |
| | | * for future use. |
| | | * {@inheritDoc} |
| | | */ |
| | | public void clear() |
| | | { |
| | |
| | | |
| | | |
| | | /** |
| | | * Removes all entries from the cache that are associated with the provided |
| | | * backend. |
| | | * |
| | | * @param backend The backend for which to flush the associated entries. |
| | | * {@inheritDoc} |
| | | */ |
| | | public void clearBackend(Backend backend) |
| | | { |
| | |
| | | |
| | | |
| | | /** |
| | | * Removes all entries from the cache that are below the provided DN. |
| | | * |
| | | * @param baseDN The base DN below which all entries should be flushed. |
| | | * {@inheritDoc} |
| | | */ |
| | | public void clearSubtree(DN baseDN) |
| | | { |
| | |
| | | |
| | | |
| | | /** |
| | | * Attempts to react to a scenario in which it is determined that the system |
| | | * is running low on available memory. In this case, the entry cache should |
| | | * attempt to free some memory if possible to try to avoid out of memory |
| | | * errors. |
| | | * {@inheritDoc} |
| | | */ |
| | | public void handleLowMemory() |
| | | { |
| | |
| | | |
| | | |
| | | /** |
| | | * Indicates whether the provided configuration entry has an acceptable |
| | | * configuration for this component. If it does not, then detailed |
| | | * information about the problem(s) should be added to the provided list. |
| | | * |
| | | * @param configEntry The configuration entry for which to make the |
| | | * determination. |
| | | * @param unacceptableReasons A list that can be used to hold messages about |
| | | * why the provided entry does not have an |
| | | * acceptable configuration. |
| | | * |
| | | * @return <CODE>true</CODE> if the provided entry has an acceptable |
| | | * configuration for this component, or <CODE>false</CODE> if not. |
| | | * {@inheritDoc} |
| | | */ |
| | | public boolean hasAcceptableConfiguration(ConfigEntry configEntry, |
| | | List<String> unacceptableReasons) |
| | | public boolean isConfigurationChangeAcceptable( |
| | | SoftReferenceEntryCacheCfg configuration, |
| | | List<String> unacceptableReasons) |
| | | { |
| | | // Start out assuming that the configuration is valid. |
| | | boolean configIsAcceptable = true; |
| | | // Make sure that we can process the defined character sets. If so, then |
| | | // we'll accept the new configuration. |
| | | boolean applyChanges = false; |
| | | EntryCacheCommon.ConfigErrorHandler errorHandler = |
| | | EntryCacheCommon.getConfigErrorHandler ( |
| | | EntryCacheCommon.ConfigPhase.PHASE_ACCEPTABLE, |
| | | unacceptableReasons, |
| | | null |
| | | ); |
| | | processEntryCacheConfig (configuration, applyChanges, errorHandler); |
| | | |
| | | |
| | | // Determine the lock timeout to use when interacting with the lock manager. |
| | | int msgID = MSGID_SOFTREFCACHE_DESCRIPTION_LOCK_TIMEOUT; |
| | | IntegerWithUnitConfigAttribute lockTimeoutStub = |
| | | new IntegerWithUnitConfigAttribute(ATTR_SOFTREFCACHE_LOCK_TIMEOUT, |
| | | getMessage(msgID), false, timeUnits, |
| | | true, 0, false, 0); |
| | | try |
| | | { |
| | | IntegerWithUnitConfigAttribute lockTimeoutAttr = |
| | | (IntegerWithUnitConfigAttribute) |
| | | configEntry.getConfigAttribute(lockTimeoutStub); |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | |
| | | // An error occurred, so the provided value must not be valid. |
| | | msgID = MSGID_SOFTREFCACHE_INVALID_LOCK_TIMEOUT; |
| | | unacceptableReasons.add(getMessage(msgID, String.valueOf(configEntryDN), |
| | | getExceptionMessage(e))); |
| | | configIsAcceptable = false; |
| | | } |
| | | |
| | | |
| | | // Determine the set of cache filters that can be used to control the |
| | | // entries that should be included in the cache. |
| | | msgID = MSGID_SOFTREFCACHE_DESCRIPTION_INCLUDE_FILTERS; |
| | | StringConfigAttribute includeStub = |
| | | new StringConfigAttribute(ATTR_SOFTREFCACHE_INCLUDE_FILTER, |
| | | getMessage(msgID), false, true, false); |
| | | try |
| | | { |
| | | StringConfigAttribute includeAttr = |
| | | (StringConfigAttribute) configEntry.getConfigAttribute(includeStub); |
| | | if (includeAttr == null) |
| | | { |
| | | // This is fine -- we'll just use the default. |
| | | } |
| | | else |
| | | { |
| | | List<String> filterStrings = includeAttr.activeValues(); |
| | | if ((filterStrings == null) || filterStrings.isEmpty()) |
| | | { |
| | | // There are no include filters, so we'll allow anything by default. |
| | | } |
| | | else |
| | | { |
| | | for (String filterString : filterStrings) |
| | | { |
| | | try |
| | | { |
| | | SearchFilter.createFilterFromString(filterString); |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | |
| | | // We couldn't decode this filter, so it isn't valid. |
| | | msgID = MSGID_SOFTREFCACHE_INVALID_INCLUDE_FILTER; |
| | | unacceptableReasons.add(getMessage(msgID, |
| | | String.valueOf(configEntryDN), |
| | | filterString, |
| | | getExceptionMessage(e))); |
| | | configIsAcceptable = false; |
| | | } |
| | | } |
| | | } |
| | | } |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | |
| | | // An error occurred, so the provided value must not be valid. |
| | | msgID = MSGID_SOFTREFCACHE_INVALID_INCLUDE_FILTERS; |
| | | unacceptableReasons.add(getMessage(msgID, String.valueOf(configEntryDN), |
| | | getExceptionMessage(e))); |
| | | configIsAcceptable = false; |
| | | } |
| | | |
| | | |
| | | // Determine the set of cache filters that can be used to control the |
| | | // entries that should be excluded from the cache. |
| | | msgID = MSGID_SOFTREFCACHE_DESCRIPTION_EXCLUDE_FILTERS; |
| | | StringConfigAttribute excludeStub = |
| | | new StringConfigAttribute(ATTR_SOFTREFCACHE_EXCLUDE_FILTER, |
| | | getMessage(msgID), false, true, false); |
| | | try |
| | | { |
| | | StringConfigAttribute excludeAttr = |
| | | (StringConfigAttribute) configEntry.getConfigAttribute(excludeStub); |
| | | if (excludeAttr == null) |
| | | { |
| | | // This is fine -- we'll just use the default. |
| | | } |
| | | else |
| | | { |
| | | List<String> filterStrings = excludeAttr.activeValues(); |
| | | if ((filterStrings == null) || filterStrings.isEmpty()) |
| | | { |
| | | // There are no exclude filters, so we'll allow anything by default. |
| | | } |
| | | else |
| | | { |
| | | for (String filterString : filterStrings) |
| | | { |
| | | try |
| | | { |
| | | SearchFilter.createFilterFromString(filterString); |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | |
| | | // We couldn't decode this filter, so it isn't valid. |
| | | msgID = MSGID_SOFTREFCACHE_INVALID_EXCLUDE_FILTER; |
| | | unacceptableReasons.add(getMessage(msgID, |
| | | String.valueOf(configEntryDN), |
| | | filterString, |
| | | getExceptionMessage(e))); |
| | | configIsAcceptable = false; |
| | | } |
| | | } |
| | | } |
| | | } |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | |
| | | // An error occurred, so the provided value must not be valid. |
| | | msgID = MSGID_SOFTREFCACHE_INVALID_EXCLUDE_FILTERS; |
| | | unacceptableReasons.add(getMessage(msgID, String.valueOf(configEntryDN), |
| | | getExceptionMessage(e))); |
| | | configIsAcceptable = false; |
| | | } |
| | | |
| | | |
| | | return configIsAcceptable; |
| | | return errorHandler.getIsAcceptable(); |
| | | } |
| | | |
| | | |
| | | |
| | | /** |
| | | * Makes a best-effort attempt to apply the configuration contained in the |
| | | * provided entry. Information about the result of this processing should be |
| | | * added to the provided message list. Information should always be added to |
| | | * this list if a configuration change could not be applied. If detailed |
| | | * results are requested, then information about the changes applied |
| | | * successfully (and optionally about parameters that were not changed) should |
| | | * also be included. |
| | | * |
| | | * @param configEntry The entry containing the new configuration to |
| | | * apply for this component. |
| | | * @param detailedResults Indicates whether detailed information about the |
| | | * processing should be added to the list. |
| | | * |
| | | * @return Information about the result of the configuration update. |
| | | * {@inheritDoc} |
| | | */ |
| | | public ConfigChangeResult applyNewConfiguration(ConfigEntry configEntry, |
| | | boolean detailedResults) |
| | | public ConfigChangeResult applyConfigurationChange( |
| | | SoftReferenceEntryCacheCfg configuration |
| | | ) |
| | | { |
| | | // Create a set of variables to use for the result. |
| | | ResultCode resultCode = ResultCode.SUCCESS; |
| | | boolean adminActionRequired = false; |
| | | ArrayList<String> messages = new ArrayList<String>(); |
| | | boolean configIsAcceptable = true; |
| | | // Make sure that we can process the defined character sets. If so, then |
| | | // activate the new configuration. |
| | | boolean applyChanges = false; |
| | | ArrayList<String> errorMessages = new ArrayList<String>(); |
| | | EntryCacheCommon.ConfigErrorHandler errorHandler = |
| | | EntryCacheCommon.getConfigErrorHandler ( |
| | | EntryCacheCommon.ConfigPhase.PHASE_APPLY, null, errorMessages |
| | | ); |
| | | processEntryCacheConfig (configuration, applyChanges, errorHandler); |
| | | |
| | | |
| | | // Determine the lock timeout to use when interacting with the lock manager. |
| | | long newLockTimeout = LockManager.DEFAULT_TIMEOUT; |
| | | int msgID = MSGID_SOFTREFCACHE_DESCRIPTION_LOCK_TIMEOUT; |
| | | IntegerWithUnitConfigAttribute lockTimeoutStub = |
| | | new IntegerWithUnitConfigAttribute(ATTR_SOFTREFCACHE_LOCK_TIMEOUT, |
| | | getMessage(msgID), false, timeUnits, |
| | | true, 0, false, 0); |
| | | try |
| | | { |
| | | IntegerWithUnitConfigAttribute lockTimeoutAttr = |
| | | (IntegerWithUnitConfigAttribute) |
| | | configEntry.getConfigAttribute(lockTimeoutStub); |
| | | if (lockTimeoutAttr != null) |
| | | { |
| | | newLockTimeout = lockTimeoutAttr.pendingCalculatedValue(); |
| | | } |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | |
| | | // An error occurred, so the provided value must not be valid. |
| | | msgID = MSGID_SOFTREFCACHE_INVALID_LOCK_TIMEOUT; |
| | | messages.add(getMessage(msgID, String.valueOf(configEntryDN), |
| | | getExceptionMessage(e))); |
| | | |
| | | if (resultCode == ResultCode.SUCCESS) |
| | | { |
| | | resultCode = ResultCode.CONSTRAINT_VIOLATION; |
| | | } |
| | | |
| | | configIsAcceptable = false; |
| | | } |
| | | |
| | | |
| | | // Determine the set of cache filters that can be used to control the |
| | | // entries that should be included in the cache. |
| | | HashSet<SearchFilter> newIncludeFilters = new HashSet<SearchFilter>(); |
| | | msgID = MSGID_SOFTREFCACHE_DESCRIPTION_INCLUDE_FILTERS; |
| | | StringConfigAttribute includeStub = |
| | | new StringConfigAttribute(ATTR_SOFTREFCACHE_INCLUDE_FILTER, |
| | | getMessage(msgID), false, true, false); |
| | | try |
| | | { |
| | | StringConfigAttribute includeAttr = |
| | | (StringConfigAttribute) configEntry.getConfigAttribute(includeStub); |
| | | if (includeAttr != null) |
| | | { |
| | | List<String> filterStrings = includeAttr.activeValues(); |
| | | if ((filterStrings == null) || filterStrings.isEmpty()) |
| | | { |
| | | // There are no include filters, so we'll allow anything by default. |
| | | } |
| | | else |
| | | { |
| | | for (String filterString : filterStrings) |
| | | { |
| | | try |
| | | { |
| | | newIncludeFilters.add( |
| | | SearchFilter.createFilterFromString(filterString)); |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | |
| | | // We couldn't decode this filter, so it isn't valid. |
| | | msgID = MSGID_SOFTREFCACHE_INVALID_INCLUDE_FILTER; |
| | | messages.add(getMessage(msgID, String.valueOf(configEntryDN), |
| | | filterString, getExceptionMessage(e))); |
| | | |
| | | if (resultCode == ResultCode.SUCCESS) |
| | | { |
| | | resultCode = ResultCode.INVALID_ATTRIBUTE_SYNTAX; |
| | | } |
| | | |
| | | configIsAcceptable = false; |
| | | } |
| | | } |
| | | } |
| | | } |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | |
| | | // An error occurred, so the provided value must not be valid. |
| | | msgID = MSGID_SOFTREFCACHE_INVALID_INCLUDE_FILTERS; |
| | | messages.add(getMessage(msgID, String.valueOf(configEntryDN), |
| | | getExceptionMessage(e))); |
| | | |
| | | if (resultCode == ResultCode.SUCCESS) |
| | | { |
| | | resultCode = ResultCode.CONSTRAINT_VIOLATION; |
| | | } |
| | | |
| | | configIsAcceptable = false; |
| | | } |
| | | |
| | | |
| | | // Determine the set of cache filters that can be used to control the |
| | | // entries that should be exclude from the cache. |
| | | HashSet<SearchFilter> newExcludeFilters = new HashSet<SearchFilter>(); |
| | | msgID = MSGID_SOFTREFCACHE_DESCRIPTION_EXCLUDE_FILTERS; |
| | | StringConfigAttribute excludeStub = |
| | | new StringConfigAttribute(ATTR_SOFTREFCACHE_EXCLUDE_FILTER, |
| | | getMessage(msgID), false, true, false); |
| | | try |
| | | { |
| | | StringConfigAttribute excludeAttr = |
| | | (StringConfigAttribute) configEntry.getConfigAttribute(excludeStub); |
| | | if (excludeAttr != null) |
| | | { |
| | | List<String> filterStrings = excludeAttr.activeValues(); |
| | | if ((filterStrings == null) || filterStrings.isEmpty()) |
| | | { |
| | | // There are no exclude filters, so we'll allow anything by default. |
| | | } |
| | | else |
| | | { |
| | | for (String filterString : filterStrings) |
| | | { |
| | | try |
| | | { |
| | | newExcludeFilters.add( |
| | | SearchFilter.createFilterFromString(filterString)); |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | |
| | | // We couldn't decode this filter, so it isn't valid. |
| | | msgID = MSGID_SOFTREFCACHE_INVALID_EXCLUDE_FILTER; |
| | | messages.add(getMessage(msgID, String.valueOf(configEntryDN), |
| | | filterString, getExceptionMessage(e))); |
| | | |
| | | if (resultCode == ResultCode.SUCCESS) |
| | | { |
| | | resultCode = ResultCode.INVALID_ATTRIBUTE_SYNTAX; |
| | | } |
| | | |
| | | configIsAcceptable = false; |
| | | } |
| | | } |
| | | } |
| | | } |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | |
| | | // An error occurred, so the provided value must not be valid. |
| | | msgID = MSGID_SOFTREFCACHE_INVALID_EXCLUDE_FILTERS; |
| | | messages.add(getMessage(msgID, String.valueOf(configEntryDN), |
| | | getExceptionMessage(e))); |
| | | |
| | | if (resultCode == ResultCode.SUCCESS) |
| | | { |
| | | resultCode = ResultCode.CONSTRAINT_VIOLATION; |
| | | } |
| | | |
| | | configIsAcceptable = false; |
| | | } |
| | | |
| | | |
| | | if (configIsAcceptable) |
| | | { |
| | | if (lockTimeout != newLockTimeout) |
| | | { |
| | | lockTimeout = newLockTimeout; |
| | | |
| | | if (detailedResults) |
| | | { |
| | | messages.add(getMessage(MSGID_SOFTREFCACHE_UPDATED_LOCK_TIMEOUT, |
| | | lockTimeout)); |
| | | } |
| | | } |
| | | |
| | | if (!includeFilters.equals(newIncludeFilters)) |
| | | { |
| | | includeFilters = newIncludeFilters; |
| | | |
| | | if (detailedResults) |
| | | { |
| | | messages.add(getMessage(MSGID_SOFTREFCACHE_UPDATED_INCLUDE_FILTERS)); |
| | | } |
| | | } |
| | | |
| | | if (!excludeFilters.equals(newExcludeFilters)) |
| | | { |
| | | excludeFilters = newExcludeFilters; |
| | | |
| | | if (detailedResults) |
| | | { |
| | | messages.add(getMessage(MSGID_SOFTREFCACHE_UPDATED_EXCLUDE_FILTERS)); |
| | | } |
| | | } |
| | | } |
| | | |
| | | |
| | | return new ConfigChangeResult(resultCode, adminActionRequired, messages); |
| | | boolean adminActionRequired = false; |
| | | ConfigChangeResult changeResult = new ConfigChangeResult( |
| | | errorHandler.getResultCode(), |
| | | adminActionRequired, |
| | | errorHandler.getErrorMessages() |
| | | ); |
| | | return changeResult; |
| | | } |
| | | |
| | | |
| | | |
| | | /** |
| | | * Parses the provided configuration and configure the entry cache. |
| | | * |
| | | * @param configuration The new configuration containing the changes. |
| | | * @param applyChanges If true then take into account the new configuration. |
| | | * @param errorHandler An handler used to report errors. |
| | | * |
| | | * @return The mapping between strings of character set values and the |
| | | * minimum number of characters required from those sets. |
| | | */ |
| | | public boolean processEntryCacheConfig( |
| | | SoftReferenceEntryCacheCfg configuration, |
| | | boolean applyChanges, |
| | | EntryCacheCommon.ConfigErrorHandler errorHandler |
| | | ) |
| | | { |
| | | // Local variables to read configuration. |
| | | DN newConfigEntryDN; |
| | | long newLockTimeout; |
| | | HashSet<SearchFilter> newIncludeFilters = null; |
| | | HashSet<SearchFilter> newExcludeFilters = null; |
| | | |
| | | // Read configuration. |
| | | newConfigEntryDN = configuration.dn(); |
| | | newLockTimeout = configuration.getLockTimeout(); |
| | | |
| | | // Get include and exclude filters. |
| | | switch (errorHandler.getConfigPhase()) |
| | | { |
| | | case PHASE_INIT: |
| | | newIncludeFilters = EntryCacheCommon.getFilters ( |
| | | configuration.getIncludeFilter(), |
| | | MSGID_SOFTREFCACHE_INVALID_INCLUDE_FILTER, |
| | | MSGID_SOFTREFCACHE_CANNOT_DECODE_ANY_INCLUDE_FILTERS, |
| | | errorHandler, |
| | | configEntryDN |
| | | ); |
| | | newExcludeFilters = EntryCacheCommon.getFilters ( |
| | | configuration.getExcludeFilter(), |
| | | MSGID_SOFTREFCACHE_CANNOT_DECODE_EXCLUDE_FILTER, |
| | | MSGID_SOFTREFCACHE_CANNOT_DECODE_ANY_EXCLUDE_FILTERS, |
| | | errorHandler, |
| | | configEntryDN |
| | | ); |
| | | break; |
| | | case PHASE_ACCEPTABLE: // acceptable and apply are using the same |
| | | case PHASE_APPLY: // error ID codes |
| | | newIncludeFilters = EntryCacheCommon.getFilters ( |
| | | configuration.getIncludeFilter(), |
| | | MSGID_SOFTREFCACHE_INVALID_INCLUDE_FILTER, |
| | | 0, |
| | | errorHandler, |
| | | configEntryDN |
| | | ); |
| | | newExcludeFilters = EntryCacheCommon.getFilters ( |
| | | configuration.getExcludeFilter(), |
| | | MSGID_SOFTREFCACHE_INVALID_EXCLUDE_FILTER, |
| | | 0, |
| | | errorHandler, |
| | | configEntryDN |
| | | ); |
| | | break; |
| | | } |
| | | |
| | | if (applyChanges && errorHandler.getIsAcceptable()) |
| | | { |
| | | configEntryDN = newConfigEntryDN; |
| | | lockTimeout = newLockTimeout; |
| | | includeFilters = newIncludeFilters; |
| | | excludeFilters = newExcludeFilters; |
| | | } |
| | | |
| | | return errorHandler.getIsAcceptable(); |
| | | } |
| | | |
| | | |
| | | |
| | | |
| | | /** |
| | | * Operate in a loop, receiving notification of soft references that have been |
| | | * freed and removing the corresponding entries from the cache. |
| | | */ |