// Copyright (c) 2005 DMTF.  All rights reserved.
   [Version ( "2.14.0" ), 
    UMLPackagePath ( "CIM::System::Logs" ), 
    Description ( 
       "MessageLog represents any type of event, error or "
       "informational register or chronicle. The object describes the "
       "existence of the log and its characteristics. Several methods "
       "are defined for retrieving, writing and deleting log entries, "
       "and maintaining the log. This type of log uses iterators to "
       "access the log records, whereas its peer class, RecordLog, "
       "uses more abstracted access mechanisms." )]
class CIM_MessageLog : CIM_Log {

      [Key, Description ( 
          "CreationClassName indicates the name of the class or the "
          "subclass used in the creation of an instance. When used "
          "with the other key properties of this class, this "
          "property allows all instances of this class and its "
          "subclasses to be uniquely identified." ), 
       MaxLen ( 256 )]
   string CreationClassName;

      [Key, Override ( "Name" ), 
       Description ( 
          "The inherited Name serves as part of the key (a unique "
          "identifier) for the MessageLog instance." ), 
       MaxLen ( 256 )]
   string Name;

      [Description ( 
          "An array of integers indicating the Log capabilities. "
          "Information such as \"Write Record Supported\" (value= "
          "2) or \"Variable Length Records Supported\" (8) is "
          "specified in this property." ), 
       ValueMap { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", 
          "10" }, 
       Values { "Unknown", "Other", "Write Record Supported", 
          "Delete Record Supported", "Can Move Backward in Log", 
          "Freeze Log Supported", "Clear Log Supported", 
          "Supports Addressing by Ordinal Record Number", 
          "Variable Length Records Supported", 
          "Variable Formats for Records", 
          "Can Flag Records for Overwrite" }, 
       ArrayType ( "Indexed" ), 
       ModelCorrespondence { 
          "CIM_MessageLog.CapabilitiesDescriptions" }]
   uint16 Capabilities[];

      [Description ( 
          "An array of free-form strings providing more detailed "
          "explanations for any of the Log features indicated in "
          "the Capabilities array. Note, each entry of this array "
          "is related to the entry in the Capabilities array that "
          "is located at the same index." ), 
       ArrayType ( "Indexed" ), 
       ModelCorrespondence { "CIM_MessageLog.Capabilities" }]
   string CapabilitiesDescriptions[];

      [Description ( 
          "The maximum size, in bytes, to which the Log can grow. "
          "If there is no maximum, then MaxLogSize should be set to "
          "0." ), 
       Units ( "Bytes" ), 
       PUnit ( "byte" )]
   uint64 MaxLogSize;

      [Description ( 
          "The size of the Log header, in bytes, if one is present. "
          "If there is no Log header, then this property should be "
          "set to 0. Headers may include general information about "
          "the Log such as the current number of records, time of "
          "last update, or a pointer to the location of the first "
          "Log entry. Note that this property is NOT the size of "
          "the header for an individual Log entry. The latter is "
          "described by the property, SizeOfRecordHeader." ), 
       Units ( "Bytes" ), 
       PUnit ( "byte" )]
   uint64 SizeOfHeader;

      [Description ( 
          "If the SizeOfHeader property is non-zero, this property "
          "describes the structure and format of the Log header. It "
          "is a free-form string. If the SizeOfHeader property is "
          "0, then the information in this property is undefined." )]
   string HeaderFormat;

      [Description ( 
          "Maximum size, in bytes, to which an individual Log entry "
          "(record) can grow - if the Capabilities array includes a "
          "value of 7 (\"Variable Length Records Supported\"). If "
          "the Capabilities array does not include a 7, then the "
          "Log only supports fixed length entries. The size of "
          "these entries is described by this property." ), 
       Units ( "Bytes" ), 
       PUnit ( "byte" )]
   uint64 MaxRecordSize;

      [Description ( 
          "The size of the header for the Log\'s individual "
          "entries, in bytes, if record headers are defined. If "
          "there are no record headers, then this property should "
          "be set to 0. Record headers may include information such "
          "as the type of the Log entry, the date/time that the "
          "entry was last updated, or a pointer to the start of "
          "optional data. Note that this property defines the "
          "header size for individual records in the Log, while the "
          "SizeOfHeader property describes the Log\'s overall "
          "header, typically located at the start of the "
          "MessageLog." ), 
       Units ( "Bytes" ), 
       PUnit ( "byte" )]
   uint64 SizeOfRecordHeader;

      [Description ( 
          "If the SizeOfRecordHeader property is non-zero, this "
          "property describes the structure and format of the "
          "record headers. It is a free-form string. If the "
          "SizeOfRecordHeader property is 0, then the information "
          "in this property is undefined." )]
   string RecordHeaderFormat;

      [Override ( "OverwritePolicy" ), 
       Description ( 
          "An enumeration describing the behavior of the Log, when "
          "it becomes full or near full. For example, the Log may "
          "wrap (value=2) or may simply stop recording entries "
          "(value =7). \n"
          "\n"
          "Some of the property\'s possible values need further "
          "explanation: \n"
          "3=\"Clear When Near Full\" indicates that all of the "
          "Log\'s entries will be deleted when a specified record "
          "capacity is reached. The capacity is specified in "
          "percentage, using the property, PercentageNearFull. "
          "\'Near Full\' may be less than 100% if the Log takes "
          "time to clear, and a position should always be available "
          "for new records. \n"
          "4=\"Overwrite Outdated When Needed\" describes that Log "
          "entries (timestamped later than the date/time specified "
          "in the property, TimeWhenOutdated) can be overwritten. \n"
          "5=\"Remove Outdated Records\" specifies that records "
          "(timestamped later than the date/time specified in the "
          "property, TimeWhenOutdated) are logically and/or "
          "physically removed from the Log. \n"
          "6=\"Overwrite Specific Records\" indicates that "
          "specially flagged records may be overwritten. This "
          "property only makes sense when the Capabilities array "
          "includes a value of 10, \"Can Flag Records for "
          "Overwrite\"." ), 
       ValueMap { "0", "1", "2", "3", "4", "5", "6", "7" }, 
       Values { "Unknown", "Other", "Wraps When Full", 
          "Clear When Near Full", "Overwrite Outdated When Needed", 
          "Remove Outdated Records", "Overwrite Specific Records", 
          "Never Overwrite" }, 
       ModelCorrespondence { 
          "CIM_MessageLog.OtherPolicyDescription", 
          "CIM_MessageLog.TimeWhenOutdated", 
          "CIM_MessageLog.PercentageNearFull" }]
   uint16 OverwritePolicy;

      [Description ( 
          "When the OverwritePolicy specifies a value of 1 "
          "(\"Other\"), the Log\'s behavior can be explained using "
          "this property. If OverwritePolicy is not 1, then this "
          "property\'s contents are undefined." ), 
       ModelCorrespondence { "CIM_MessageLog.OverwritePolicy" }]
   string OtherPolicyDescription;

      [Description ( 
          "If the OverwritePolicy is based on \'outdated\' records "
          "(values 4 or 5), this property defines when a Log entry "
          "is considered to be outdated - either by time interval "
          "or at a specific date and time." ), 
       ModelCorrespondence { "CIM_MessageLog.OverwritePolicy" }]
   datetime TimeWhenOutdated;

      [Description ( 
          "If the OverwritePolicy is based on clearing records when "
          "the Log is near full (value=3), this property defines "
          "the record capacity (in percentage) that is considered "
          "to be \'near full\'." ), 
       Units ( "Percent" ), 
       ModelCorrespondence { "CIM_MessageLog.OverwritePolicy" }, 
       PUnit ( "percent" )]
   uint8 PercentageNearFull;

      [Description ( 
          "An enumeration describing the last change to the MessageLog."
           ), 
       ValueMap { "0", "1", "2", "3", "4" }, 
       Values { "Unknown", "Add", "Delete", "Modify", "Log Cleared" }]
   uint16 LastChange;

      [Description ( 
          "When a change is made to the Log, the date/time of that "
          "modification is captured. This property could be used to "
          "event against any update to the MessageLog." )]
   datetime TimeOfLastChange;

      [Description ( 
          "When a change is made to the Log, the record number that "
          "was modified is captured." )]
   uint64 RecordLastChanged;

      [Description ( 
          "Boolean indicating that the Log is currently frozen and "
          "modifications are not allowed." )]
   boolean IsFrozen;

      [Description ( 
          "An enumeration describing the character set used to "
          "record data in the individual Log entries. For example, "
          "the Log records may contain ASCII data (value=2), or be "
          "raw octet strings (value=10)." ), 
       ValueMap { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", 
          "10", "11" }, 
       Values { "Unknown", "Other", "ASCII", "Unicode", "ISO2022", 
          "ISO8859", "Extended UNIX Code", "UTF-8", "UCS-2", 
          "Bitmapped Data", "OctetString", 
          "Defined by Individual Records" }]
   uint16 CharacterSet;


      [Description ( 
          "Requests that an iteration of the MessageLog be "
          "established and that the iterator be set to the first "
          "entry in the Log. An identifier for the iterator is "
          "returned as an output parameter of the method. \n"
          "\n"
          "Regarding iteration, you have 2 choices: 1) Embed "
          "iteration data in the method call, and allow "
          "implementations to track/ store this data manually; or, "
          "2) Iterate using a separate object (for example, class "
          "ActiveIterator) as an iteration agent. The first "
          "approach is used here for interoperability. The second "
          "requires an instance of the Iterator object for EACH "
          "iteration in progress. 2\'s functionality could be "
          "implemented underneath 1. \n"
          "\n"
          "The return value from PositionToFirstRecord should be 0 "
          "if the request was successfully executed, 1 if the "
          "request is not supported and some other value if an "
          "error occurred. In a subclass, the set of possible "
          "return codes could be specified, using a ValueMap "
          "qualifier on the method. The strings to which the "
          "ValueMap contents are \'translated\' may also be "
          "specified in the subclass as a Values array qualifier." )]
   uint32 PositionToFirstRecord(
         [IN ( false ), OUT, Description ( 
             "An identifier for the iterator." )]
      string IterationIdentifier);

      [Description ( 
          "Requests that the Log\'s iteration identifier be "
          "advanced or retreated a specific number of records, or "
          "set to the entry at a specified numeric location. These "
          "two different behaviors are accomplished using the input "
          "parameters of the method. Advancing or retreating is "
          "achieved by setting the MoveAbsolute boolean to FALSE, "
          "and then specifying the number of entries to advance or "
          "retreat as positive or negative values in the "
          "RecordNumber parameter. Moving to a specific record "
          "number is accomplished by setting the MoveAbsolute input "
          "parameter to TRUE, and then placing the record number "
          "into the RecordNumber parameter. This can only be done "
          "if the Capabilities array includes a value of 7, "
          "\"Supports Addressing by Ordinal Record Number\". \n"
          "\n"
          "After the method completes and if ordinal record numbers "
          "are supported (the Capabilities array includes a 7), the "
          "current record number is returned in the RecordNumber "
          "output parameter. Otherwise, the value of the parameter "
          "is undefined. \n"
          "\n"
          "IterationIdentifier is defined as an Input/Output method "
          "parameter to allow the Log to embed state information in "
          "the Identifier and potentially let the identifier be "
          "maintained by the using application. \n"
          "\n"
          "The return value from PositionAtRecord should be 0 if "
          "the request was successfully executed, 1 if the request "
          "is not supported and some other value if an error "
          "occurred. If the request is not supported, check the "
          "Capabilities array regarding support for ordinal record "
          "number addressing and backward movement in the Log "
          "(values 7 and 4, respectively). \n"
          "\n"
          "Note: In a subclass, the set of possible return codes "
          "could be described using a ValueMap qualifier on the "
          "method. The strings to which the ValueMap contents are "
          "\'translated\' may also be specified in the subclass as "
          "a Values array qualifier." )]
   uint32 PositionAtRecord(
         [IN, OUT, Description ( 
             "An identifier for the iterator." )]
      string IterationIdentifier, 
         [IN, Description ( 
             "Advancing or retreating the IterationIdentifier is "
             "achieved by setting the MoveAbsolute boolean to "
             "FALSE, and specifying the number of entries to "
             "advance or retreat as positive or negative values "
             "in the RecordNumber parameter. Moving to a "
             "specific record number is accomplished by setting "
             "the MoveAbsolute parameter to TRUE, and placing "
             "the record number into the RecordNumber parameter." )]
      boolean MoveAbsolute, 
         [IN, OUT, Description ( 
             "The relative or absolute record number." )]
      sint64 RecordNumber);

      [Description ( 
          "Requests that the record indicated by the "
          "IterationIdentifier be retrieved from the MessageLog. "
          "After retrieval, the IterationIdentifier may be advanced "
          "to the next record by setting the PositionToNext input "
          "parameter to TRUE. Two output parameters are defined for "
          "the method - RecordData which holds the contents of the "
          "Log entry (as an array of bytes that can be recast to an "
          "appropriate format), and RecordNumber which returns the "
          "current record number addressed via the Iteration "
          "Identifier. The RecordNumber parameter is only "
          "defined/valid when the Capabilities array indicates that "
          "ordinal record number addressing is supported (a value "
          "of 7). \n"
          "\n"
          "IterationIdentifier is defined as an Input/Output method "
          "parameter to allow the Log to embed state information in "
          "the Identifier and potentially let the identifier be "
          "maintained by the using application. \n"
          "\n"
          "The return value from GetRecord should be 0 if the "
          "request was successfully executed, 1 if the request is "
          "not supported, and some other value if an error "
          "occurred. In a subclass, the set of possible return "
          "codes could be specified, using a ValueMap qualifier on "
          "the method. The strings to which the ValueMap contents "
          "are \'translated\' may also be specified in the subclass "
          "as a Values array qualifier." )]
   uint32 GetRecord(
         [IN, OUT, Description ( 
             "An identifier for the iterator." )]
      string IterationIdentifier, 
         [IN, Description ( 
             "Boolean indicating that the Iteration Identifier "
             "should be advanced to the next record, after "
             "retrieving the current Log entry." )]
      boolean PositionToNext, 
         [IN ( false ), OUT, Description ( "The record number." )]
      uint64 RecordNumber, 
         [IN ( false ), OUT, Description ( "The record data." )]
      uint8 RecordData[]);

      [Description ( 
          "Requests that the record indicated by the "
          "IterationIdentifier be deleted from the MessageLog. "
          "After deletion, the Iteration Identifier may be advanced "
          "to the next record by setting the PositionToNext input "
          "parameter to TRUE. If set to FALSE, then the "
          "IterationIdentifier will be positioned at the previous "
          "record. Two output parameters are defined for the method "
          "- RecordData which holds the contents of the deleted Log "
          "entry (as an array of bytes that can be recast to an "
          "appropriate format or discarded), and RecordNumber which "
          "returns the current record number addressed via the "
          "IterationIdentifier. The RecordNumber parameter is only "
          "defined/valid when the Capabilities array indicates that "
          "ordinal record number addressing is supported (a value "
          "of 7). \n"
          "\n"
          "IterationIdentifier is defined as an Input/Output method "
          "parameter to allow the Log to embed state information in "
          "the Identifier and potentially let the identifier be "
          "maintained by the using application. \n"
          "\n"
          "The return value from DeleteRecord should be 0 if the "
          "request was successfully executed, 1 if the request is "
          "not supported, and some other value if an error "
          "occurred. If the request is not supported, check the "
          "Capabilities array that a value of 3 (\"Delete Record "
          "Supported\") is specified. \n"
          "\n"
          "Note: In a subclass, the set of possible return codes "
          "could be described using a ValueMap qualifier on the "
          "method. The strings to which the ValueMap contents are "
          "\'translated\' may also be specified in the subclass as "
          "a Values array qualifier." )]
   uint32 DeleteRecord(
         [IN, OUT, Description ( 
             "An identifier for the iterator." )]
      string IterationIdentifier, 
         [IN, Description ( 
             "Boolean that when set to TRUE requests the "
             "IterationIdentifier to be advanced to the next "
             "record, after the current entry is deleted. If set "
             "to FALSE, IterationIdentifier is set to the "
             "previous record." )]
      boolean PositionToNext, 
         [IN ( false ), OUT, Description ( "The record number." )]
      uint64 RecordNumber, 
         [IN ( false ), OUT, Description ( "The record data." )]
      uint8 RecordData[]);

      [Description ( 
          "Requests that a record be inserted at the Log position "
          "indicated by the IterationIdentifier. The entry\'s data "
          "is provided in the RecordData input parameter. After "
          "insertion, the IterationIdentifier may be advanced to "
          "the next record by setting the PositionToNext input "
          "parameter to TRUE. The output parameter, RecordNumber, "
          "returns the current record number addressed via the "
          "IterationIdentifier. This parameter is only "
          "defined/valid when the Capabilities array indicates that "
          "ordinal record number addressing is supported (a value "
          "of 7). \n"
          "\n"
          "IterationIdentifier is defined as an Input/Output method "
          "parameter to allow the Log to embed state information in "
          "the Identifier and potentially let the identifier be "
          "maintained by the using application. \n"
          "\n"
          "The return value from WriteRecord should be 0 if the "
          "request was successfully executed, 1 if the request is "
          "not supported, and some other value if an error "
          "occurred. If the request is not supported, check the "
          "Capabilities array that a value of 2 (\"Write Record "
          "Supported\") is specified. \n"
          "\n"
          "Note: In a subclass, the set of possible return codes "
          "could be described using a ValueMap qualifier on the "
          "method. The strings to which the ValueMap contents are "
          "\'translated\' may also be specified in the subclass as "
          "a Values array qualifier." )]
   uint32 WriteRecord(
         [IN, OUT, Description ( 
             "An identifier for the iterator." )]
      string IterationIdentifier, 
         [IN, Description ( 
             "Boolean indicating that the Iteration Identifier "
             "should be advanced to the next record, after "
             "writing the Log entry." )]
      boolean PositionToNext, 
         [IN, Description ( "The record data." )]
      uint8 RecordData[], 
         [IN ( false ), OUT, Description ( "The record number." )]
      uint64 RecordNumber);

      [Description ( 
          "Requests that an iteration of the Log, identified by the "
          "IterationIdentifier input parameter, be stopped. The "
          "return value from CancelIteration should be 0 if the "
          "request was successfully executed, 1 if the request is "
          "not supported and some other value if an error occurred. "
          "In a subclass, the set of possible return codes could be "
          "specified, using a ValueMap qualifier on the method. The "
          "strings to which the ValueMap contents are \'translated\' "
          "may also be specified in the subclass as a Values array "
          "qualifier." )]
   uint32 CancelIteration(
         [IN, Description ( "An identifier for the iterator." )]
      string IterationIdentifier);

      [Description ( 
          "Requests that the MessageLog be placed in a frozen state "
          "(\"Freeze\" input parameter = TRUE) or \'unfrozen\' (= "
          "FALSE). If frozen, modifications to the Log will not be "
          "allowed. If successful, the Log\'s IsFrozen boolean "
          "property will be updated to reflect the desired state. \n"
          "\n"
          "The method\'s return code should be 0 if the request was "
          "successfully executed, 1 if the request is not supported "
          "and some other value if an error occurred. If the "
          "request is not supported, check the Capabilities array "
          "that a value of 5 (\"Freeze Log Supported\") is "
          "specified. \n"
          "\n"
          "Note: In a subclass, the set of possible return codes "
          "could be described using a ValueMap qualifier on the "
          "method. The strings to which the ValueMap contents are "
          "\'translated\' may also be specified in the subclass as "
          "a Values array qualifier." )]
   uint32 FreezeLog(
         [IN, Description ( 
             "If TRUE then freeze the log, if FALSE \'unfreeze\' the log."
              )]
      boolean Freeze);

      [Description ( 
          "Requests that the record indicated by the "
          "IterationIdentifier be flagged as overwriteable. This "
          "method is only supported when the Capabilities array "
          "includes a value of 10, \"Can Flag Records for "
          "Overwrite\". After updating the entry, the "
          "IterationIdentifier may be advanced to the next record "
          "by setting the PositionToNext input parameter to TRUE. "
          "One output parameter is defined for the method "
          "RecordNumber. It returns the current record number "
          "addressed via the Iteration Identifier. This parameter "
          "is only defined/valid when the Capabilities array "
          "indicates that ordinal record number addressing is "
          "supported (a value of 7). \n"
          "\n"
          "IterationIdentifier is defined as an Input/Output method "
          "parameter to allow the Log to embed state information in "
          "the Identifier and potentially let the identifier be "
          "maintained by the using application. \n"
          "\n"
          "The return value from FlagRecordForOverwrite should be 0 "
          "if the request was successfully executed, 1 if the "
          "request is not supported, and some other value if an "
          "error occurred. In a subclass, the set of possible "
          "return codes could be specified, using a ValueMap "
          "qualifier on the method. The strings to which the "
          "ValueMap contents are \'translated\' may also be "
          "specified in the subclass as a Values array qualifier." )]
   uint32 FlagRecordForOverwrite(
         [IN, OUT, Description ( 
             "An identifier for the iterator." )]
      string IterationIdentifier, 
         [IN, Description ( 
             "Boolean indicating that the Iteration Identifier "
             "should be advanced to the next record, after "
             "updating the current Log entry." )]
      boolean PositionToNext, 
         [IN ( false ), OUT, Description ( "The record number." )]
      uint64 RecordNumber);

};
