common

package
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 Go to latest Published: Feb 7, 2018 License: Apache-2.0 Imports: 34 Imported by: 40,844

Documentation

Index

Constants

View Source 
const (
	FieldsKey = "fields"
	TagsKey   = "tags"
)

Event metadata constants. These keys are used within libbeat to identify metadata stored in an event.

View Source 
const (
	OK_STATUS           = "OK"
	ERROR_STATUS        = "Error"
	SERVER_ERROR_STATUS = "Server Error"
	CLIENT_ERROR_STATUS = "Client Error"
)

standardized status values

View Source 
const DefaultDecimalPlacesCount = 4

DefaultDecimalPlacesCount is the default number of decimal places

View Source 
const MaxIPPortTupleRawSize = 16 + 16 + 2 + 2
View Source 
const MaxTCPTupleRawSize = 16 + 16 + 2 + 2 + 4
View Source 
const TsLayout = "2006-01-02T15:04:05.000Z"

TsLayout is the layout to be used in the timestamp marshaling/unmarshaling everywhere. The timezone must always be UTC.

Variables

View Source 
var (
	// ErrKeyNotFound indicates that the specified key was not found.
	ErrKeyNotFound = errors.New("key not found")
)

Functions

func AddTags 

func AddTags(ms MapStr, tags []string) error

AddTags appends a tag to the tags field of ms. If the tags field does not exist then it will be created. If the tags field exists and is not a []string then an error will be returned. It does not deduplicate the list of tags.

func BytesHtohl 

func BytesHtohl(b []byte) uint32

func BytesNtohl 

func BytesNtohl(b []byte) uint32

func BytesNtohll 

func BytesNtohll(b []byte) uint64

func BytesNtohs 

func BytesNtohs(b []byte) uint16

func ConfigOverwriteFlag 

func ConfigOverwriteFlag(
	fs *flag.FlagSet,
	config *Config,
	name, path, def, usage string,
) *string

ConfigOverwriteFlag defines a new flag updating a setting in an Config object. The name is used as the flag its name the path parameter is the full setting name to be used when the flag is set.

func DeDot 

func DeDot(s string) string

DeDot a string by replacing all . with _ This helps when sending data to Elasticsearch to prevent object and key collisions.

func DeDotJSON 

func DeDotJSON(json interface{}) interface{}

DeDotJSON replaces in keys all . with _ This helps when sending data to Elasticsearch to prevent object and key collisions.

func DumpInCSVFormat 

func DumpInCSVFormat(fields []string, rows [][]string) string

DumpInCSVFormat takes a set of fields and rows and returns a string representing the CSV representation for the fields and rows.

func EncodeURLParams 

func EncodeURLParams(url string, params url.Values) string

func GenerateKey 

func GenerateKey(key string) string

Recursively generates the correct key based on the dots The mapping requires "properties" between each layer. This is added here.

func IPv4Ntoa 

func IPv4Ntoa(ip uint32) string

Ipv4_Ntoa transforms an IP4 address in it's dotted notation

func IsLoopback 

func IsLoopback(ipStr string) (bool, error)

IsLoopback check if a particular IP notation corresponds to a loopback interface.

func IsStrictPerms 

func IsStrictPerms() bool

IsStrictPerms returns true if strict permission checking on config files is enabled.

func LocalIPAddrs 

func LocalIPAddrs() ([]net.IP, error)

LocalIPAddrs finds the IP addresses of the hosts on which the shipper currently runs on.

func LocalIPAddrsAsStrings 

func LocalIPAddrsAsStrings(includeLoopbacks bool) ([]string, error)

LocalIPAddrsAsStrings finds the IP addresses of the hosts on which the shipper currently runs on and returns them as an array of strings.

func MakeURL 

func MakeURL(defaultScheme string, defaultPath string, rawURL string, defaultPort int) (string, error)

MakeURL creates the url based on the url configuration. Adds missing parts with defaults (scheme, host, port)

func MergeFields 

func MergeFields(ms, fields MapStr, underRoot bool) error

MergeFields merges the top-level keys and values in each source map (it does not perform a deep merge). If the same key exists in both, the value in fields takes precedence. If underRoot is true then the contents of the fields MapStr is merged with the value of the 'fields' key in ms.

An error is returned if underRoot is true and the value of ms.fields is not a MapStr.

func OverwriteConfigOpts 

func OverwriteConfigOpts(options []ucfg.Option)

OverwriteConfigOpts allow to change the globally set config option

func RandomBytes 

func RandomBytes(length int) ([]byte, error)

RandomBytes return a slice of random bytes of the defined length

func ReadString 

func ReadString(s []byte) (string, error)

ReadString extracts the first null terminated string from a slice of bytes.

func Round 

func Round(val float64, precision int64) (newVal float64)

Round rounds the given float64 value and ensures that it has a maximum of "precision" decimal places.

func SettingVarFlag 

func SettingVarFlag(fs *flag.FlagSet, def *Config, name, usage string)

SettingVarFlag defines a setting flag, name and it's usage. Settings are applied to the Config object passed.

Types

type Backoff 

type Backoff struct {
	// contains filtered or unexported fields
}

A Backoff waits on errors with exponential backoff (limited by maximum backoff). Resetting Backoff will reset the next sleep timer to the initial backoff duration.

func NewBackoff 

func NewBackoff(done <-chan struct{}, init, max time.Duration) *Backoff

func (*Backoff) Reset 

func (b *Backoff) Reset()

func (*Backoff) TryWaitOnError 

func (b *Backoff) TryWaitOnError(failTS time.Time, err error) bool

func (*Backoff) Wait 

func (b *Backoff) Wait() bool

func (*Backoff) WaitOnError 

func (b *Backoff) WaitOnError(err error) bool

type Cache 

type Cache struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

Cache is a semi-persistent mapping of keys to values. Elements added to the cache are store until they are explicitly deleted or are expired due time- based eviction based on last access time.

Expired elements are not visible through classes methods, but they do remain stored in the cache until CleanUp() is invoked. Therefore CleanUp() must be invoked periodically to prevent the cache from becoming a memory leak. If you want to start a goroutine to perform periodic clean-up then see StartJanitor().

Cache does not support storing nil values. Any attempt to put nil into the cache will cause a panic.

func NewCache 

func NewCache(d time.Duration, initialSize int) *Cache

NewCache creates and returns a new Cache. d is the length of time after last access that cache elements expire. initialSize is the initial allocation size used for the Cache's underlying map.

func NewCacheWithRemovalListener 

func NewCacheWithRemovalListener(d time.Duration, initialSize int, l RemovalListener) *Cache

NewCacheWithRemovalListener creates and returns a new Cache and register a RemovalListener callback function. d is the length of time after last access that cache elements expire. initialSize is the initial allocation size used for the Cache's underlying map. l is the callback function that will be invoked when cache elements are removed from the map on CleanUp.

func (*Cache) CleanUp 

func (c *Cache) CleanUp() int

CleanUp performs maintenance on the cache by removing expired elements from the cache. If a RemoveListener is registered it will be invoked for each element that is removed during this clean up operation. The RemovalListener is invoked on the caller's goroutine.

func (*Cache) Delete 

func (c *Cache) Delete(k Key) Value

Delete a key from the map and return the value or nil if the key does not exist. The RemovalListener is not notified for explicit deletions.

func (*Cache) Entries 

func (c *Cache) Entries() map[Key]Value

Entries returns a shallow copy of the non-expired elements in the cache.

func (*Cache) Get 

func (c *Cache) Get(k Key) Value

Get the current value associated with a key or nil if the key is not present. The last access time of the element is updated.

func (*Cache) Put 

func (c *Cache) Put(k Key, v Value) Value

Put writes the given key and value to the map replacing any existing value if it exists. The previous value associated with the key returned or nil if the key was not present.

func (*Cache) PutIfAbsent 

func (c *Cache) PutIfAbsent(k Key, v Value) Value

PutIfAbsent writes the given key and value to the cache only if the key is absent from the cache. Nil is returned if the key-value pair were written, otherwise the old value is returned.

func (*Cache) PutIfAbsentWithTimeout 

func (c *Cache) PutIfAbsentWithTimeout(k Key, v Value, timeout time.Duration) Value

PutIfAbsentWithTimeout writes the given key and value to the cache only if the key is absent from the cache. Nil is returned if the key-value pair were written, otherwise the old value is returned. The cache expiration time will be overwritten by timeout of the key being inserted.

func (*Cache) PutWithTimeout 

func (c *Cache) PutWithTimeout(k Key, v Value, timeout time.Duration) Value

PutWithTimeout writes the given key and value to the map replacing any existing value if it exists. The previous value associated with the key returned or nil if the key was not present. The cache expiration time will be overwritten by timeout of the key being inserted.

func (*Cache) Replace 

func (c *Cache) Replace(k Key, v Value) Value

Replace overwrites the value for a key only if the key exists. The old value is returned if the value is updated, otherwise nil is returned.

func (*Cache) ReplaceWithTimeout 

func (c *Cache) ReplaceWithTimeout(k Key, v Value, timeout time.Duration) Value

ReplaceWithTimeout overwrites the value for a key only if the key exists. The old value is returned if the value is updated, otherwise nil is returned. The cache expiration time will be overwritten by timeout of the key being inserted.

func (*Cache) Size 

func (c *Cache) Size() int

Size returns the number of elements in the cache. The number includes both active elements and expired elements that have not been cleaned up.

func (*Cache) StartJanitor 

func (c *Cache) StartJanitor(interval time.Duration)

StartJanitor starts a goroutine that will periodically invoke the cache's CleanUp() method.

func (*Cache) StopJanitor 

func (c *Cache) StopJanitor()

StopJanitor stops the goroutine created by StartJanitor.

type CmdlineTuple 

type CmdlineTuple struct {
	Src, Dst []byte
}

Source and destination process names, as found by the proc module.

type Config 

type Config ucfg.Config

Config object to store hierarchical configurations into. See https://godoc.org/github.com/elastic/go-ucfg#Config

func LoadFile 

func LoadFile(path string) (*Config, error)

func LoadFiles 

func LoadFiles(paths ...string) (*Config, error)

func MergeConfigs 

func MergeConfigs(cfgs ...*Config) (*Config, error)

func NewConfig 

func NewConfig() *Config

func NewConfigFrom 

func NewConfigFrom(from interface{}) (*Config, error)

func NewConfigWithYAML 

func NewConfigWithYAML(in []byte, source string) (*Config, error)

func SettingFlag 

func SettingFlag(fs *flag.FlagSet, name, usage string) *Config

SettingFlag defines a setting flag, name and it's usage. The return value is the Config object settings are applied to.

func (*Config) Bool 

func (c *Config) Bool(name string, idx int) (bool, error)

func (*Config) Child 

func (c *Config) Child(name string, idx int) (*Config, error)

func (*Config) CountField 

func (c *Config) CountField(name string) (int, error)

func (*Config) Enabled 

func (c *Config) Enabled() bool

func (*Config) Float 

func (c *Config) Float(name string, idx int) (float64, error)

func (*Config) GetFields 

func (c *Config) GetFields() []string

func (*Config) HasField 

func (c *Config) HasField(name string) bool

func (*Config) Int 

func (c *Config) Int(name string, idx int) (int64, error)

func (*Config) IsArray 

func (c *Config) IsArray() bool

func (*Config) IsDict 

func (c *Config) IsDict() bool

func (*Config) Merge 

func (c *Config) Merge(from interface{}) error

func (*Config) Path 

func (c *Config) Path() string

func (*Config) PathOf 

func (c *Config) PathOf(field string) string

func (*Config) PrintDebugf 

func (c *Config) PrintDebugf(msg string, params ...interface{})

func (*Config) SetBool 

func (c *Config) SetBool(name string, idx int, value bool) error

func (*Config) SetChild 

func (c *Config) SetChild(name string, idx int, value *Config) error

func (*Config) SetFloat 

func (c *Config) SetFloat(name string, idx int, value float64) error

func (*Config) SetInt 

func (c *Config) SetInt(name string, idx int, value int64) error

func (*Config) SetString 

func (c *Config) SetString(name string, idx int, value string) error

func (*Config) String 

func (c *Config) String(name string, idx int) (string, error)

func (*Config) Unpack 

func (c *Config) Unpack(to interface{}) error

type ConfigNamespace 

type ConfigNamespace struct {
	// contains filtered or unexported fields
}

ConfigNamespace storing at most one configuration section by name and sub-section.

func (*ConfigNamespace) Config 

func (ns *ConfigNamespace) Config() *Config

Config return the sub-configuration section if a section has been set.

func (*ConfigNamespace) IsSet 

func (ns *ConfigNamespace) IsSet() bool

IsSet returns true if a sub-configuration section has been set.

func (*ConfigNamespace) Name 

func (ns *ConfigNamespace) Name() string

Name returns the configuration sections it's name if a section has been set.

func (*ConfigNamespace) Unpack 

func (ns *ConfigNamespace) Unpack(cfg *Config) error

Unpack unpacks a configuration with at most one sub object. An sub object is ignored if it is disabled by setting `enabled: false`. If the configuration passed contains multiple active sub objects, Unpack will return an error.

type DynamicType 

type DynamicType struct{ Value interface{} }

func (*DynamicType) Unpack 

func (d *DynamicType) Unpack(s string) error

type Endpoint 

type Endpoint struct {
	IP      string
	Port    uint16
	Name    string
	Cmdline string
	Proc    string
}

Endpoint represents an endpoint in the communication.

type EventMetadata 

type EventMetadata struct {
	Fields          MapStr
	FieldsUnderRoot bool `config:"fields_under_root"`
	Tags            []string
}

EventMetadata contains fields and tags that can be added to an event via configuration.

type Field 

type Field struct {
	Name           string      `config:"name"`
	Type           string      `config:"type"`
	Description    string      `config:"description"`
	Format         string      `config:"format"`
	ScalingFactor  int         `config:"scaling_factor"`
	Fields         Fields      `config:"fields"`
	MultiFields    Fields      `config:"multi_fields"`
	ObjectType     string      `config:"object_type"`
	Enabled        *bool       `config:"enabled"`
	Analyzer       string      `config:"analyzer"`
	SearchAnalyzer string      `config:"search_analyzer"`
	Norms          bool        `config:"norms"`
	Dynamic        DynamicType `config:"dynamic"`
	Index          *bool       `config:"index"`
	DocValues      *bool       `config:"doc_values"`
	CopyTo         string      `config:"copy_to"`

	// Kibana specific
	Analyzed     *bool  `config:"analyzed"`
	Count        int    `config:"count"`
	Searchable   *bool  `config:"searchable"`
	Aggregatable *bool  `config:"aggregatable"`
	Script       string `config:"script"`
	// Kibana params
	Pattern              string              `config:"pattern"`
	InputFormat          string              `config:"input_format"`
	OutputFormat         string              `config:"output_format"`
	OutputPrecision      *int                `config:"output_precision"`
	LabelTemplate        string              `config:"label_template"`
	UrlTemplate          []VersionizedString `config:"url_template"`
	OpenLinkInCurrentTab *bool               `config:"open_link_in_current_tab"`

	Path string
}

type Fields 

type Fields []Field

func LoadFieldsYaml 

func LoadFieldsYaml(path string) (Fields, error)

func (Fields) HasKey 

func (f Fields) HasKey(key string) bool

HasKey checks if inside fields the given key exists The key can be in the form of a.b.c and it will check if the nested field exist In case the key is `a` and there is a value `a.b` false is return as it only returns true if it's a leave node

type Float 

type Float float64

func (Float) MarshalJSON 

func (f Float) MarshalJSON() ([]byte, error)

Defines the marshal of the Float type

type HashableIPPortTuple 

type HashableIPPortTuple [MaxIPPortTupleRawSize]byte

type HashableTCPTuple 

type HashableTCPTuple [MaxTCPTupleRawSize]byte

type IPPortTuple 

type IPPortTuple struct {
	IPLength         int
	SrcIP, DstIP     net.IP
	SrcPort, DstPort uint16
	// contains filtered or unexported fields
}

func NewIPPortTuple 

func NewIPPortTuple(ipLength int, srcIP net.IP, srcPort uint16,
	dstIP net.IP, dstPort uint16) IPPortTuple

func (*IPPortTuple) ComputeHashebles 

func (t *IPPortTuple) ComputeHashebles()

func (*IPPortTuple) Hashable 

func (t *IPPortTuple) Hashable() HashableIPPortTuple

Hashable returns a hashable value that uniquely identifies the IP-port tuple.

func (*IPPortTuple) RevHashable 

func (t *IPPortTuple) RevHashable() HashableIPPortTuple

Hashable returns a hashable value that uniquely identifies the IP-port tuple after swapping the source and destination.

func (*IPPortTuple) String 

func (t *IPPortTuple) String() string

type Key 

type Key interface{}

Key type used in the cache.

type MapStr 

type MapStr map[string]interface{}

MapStr is a map[string]interface{} wrapper with utility methods for common map operations like converting to JSON.

func ConvertToGenericEvent 

func ConvertToGenericEvent(m MapStr) MapStr

ConvertToGenericEvent normalizes the types contained in the given MapStr.

Nil values in maps are dropped during the conversion. Any unsupported types that are found in the MapStr are dropped and warnings are logged.

func MapStrUnion 

func MapStrUnion(dict1 MapStr, dict2 MapStr) MapStr

MapStrUnion creates a new MapStr containing the union of the key-value pairs of the two maps. If the same key is present in both, the key-value pairs from dict2 overwrite the ones from dict1.

func (MapStr) Clone 

func (m MapStr) Clone() MapStr

Clone returns a copy of the MapStr. It recursively makes copies of inner maps.

func (MapStr) CopyFieldsTo 

func (m MapStr) CopyFieldsTo(to MapStr, key string) error

CopyFieldsTo copies the field specified by key to the given map. It will overwrite the key if it exists. An error is returned if the key does not exist in the source map.

func (MapStr) DeepUpdate 

func (m MapStr) DeepUpdate(d MapStr)

DeepUpdate recursively copies the key-value pairs from d to this map. If the key is present and a map as well, the sub-map will be updated recursively via DeepUpdate.

func (MapStr) Delete 

func (m MapStr) Delete(key string) error

Delete deletes the given key from the map.

func (MapStr) Flatten 

func (m MapStr) Flatten() MapStr

Flatten flattens the given MapStr and returns a flat MapStr.

Example: 

"hello": MapStr{"world": "test" }

This is converted to: 

"hello.world": "test"

This can be useful for testing or logging.

func (MapStr) GetValue 

func (m MapStr) GetValue(key string) (interface{}, error)

GetValue gets a value from the map. If the key does not exist then an error is returned.

func (MapStr) HasKey 

func (m MapStr) HasKey(key string) (bool, error)

HasKey returns true if the key exist. If an error occurs then false is returned with a non-nil error.

func (MapStr) MarshalLogObject 

func (m MapStr) MarshalLogObject(enc zapcore.ObjectEncoder) error

MarshalLogObject implements the zapcore.ObjectMarshaler interface and allows for more efficient marshaling of MapStr in structured logging.

func (MapStr) Put 

func (m MapStr) Put(key string, value interface{}) (interface{}, error)

Put associates the specified value with the specified key. If the map previously contained a mapping for the key, the old value is replaced and returned. The key can be expressed in dot-notation (e.g. x.y) to put a value into a nested map.

If you need insert keys containing dots then you must use bracket notation to insert values (e.g. m[key] = value).

func (MapStr) String 

func (m MapStr) String() string

String returns the MapStr as JSON.

func (MapStr) StringToPrint 

func (m MapStr) StringToPrint() string

StringToPrint returns the MapStr as pretty JSON.

func (MapStr) Update 

func (m MapStr) Update(d MapStr)

Update copies all the key-value pairs from d to this map. If the key already exists then it is overwritten. This method does not merge nested maps.

type MapStrPointer 

type MapStrPointer struct {
	// contains filtered or unexported fields
}

MapStrPointer stores a pointer to atomically get/set a MapStr object This should give faster access for use cases with lots of reads and a few changes. It's imortant to note that modifying the map is not thread safe, only fully replacing it.

func NewMapStrPointer 

func NewMapStrPointer(m MapStr) MapStrPointer

NewMapStrPointer initializes and returns a pointer to the given MapStr

func (MapStrPointer) Get 

func (m MapStrPointer) Get() MapStr

Get returns the MapStr stored under this pointer

func (*MapStrPointer) Set 

func (m *MapStrPointer) Set(p MapStr)

Set stores a pointer the given MapStr, replacing any previous one

type NetString 

type NetString []byte

NetString store the byte length of the data that follows, making it easier to unambiguously pass text and byte data between programs that could be sensitive to values that could be interpreted as delimiters or terminators (such as a null character).

func (NetString) MarshalText 

func (n NetString) MarshalText() ([]byte, error)

MarshalText exists to implement encoding.TextMarshaller interface to treat []byte as raw string by other encoders/serializers (e.g. JSON)

type RemovalListener 

type RemovalListener func(k Key, v Value)

RemovalListener is the callback function type that can be registered with the cache to receive notification of the removal of expired elements.

type SettingsFlag 

type SettingsFlag cfgflag.FlagValue

SettingsFlag captures key/values pairs into an Config object. The flag backed by SettingsFlag can be used multiple times. Values are overwritten by the last usage of a key.

func NewSettingsFlag 

func NewSettingsFlag(def *Config) *SettingsFlag

NewSettingsFlag creates a new SettingsFlag instance, not registered with any FlagSet.

func (*SettingsFlag) Config 

func (f *SettingsFlag) Config() *Config

Config returns the config object the SettingsFlag stores applied settings to.

func (*SettingsFlag) Get 

func (f *SettingsFlag) Get() interface{}

Get returns the Config object used to store values.

func (*SettingsFlag) Set 

func (f *SettingsFlag) Set(s string) error

Set sets a settings value in the Config object. The input string must be a key-value pair like `key=value`. If the value is missing, the value is set to the boolean value `true`.

func (*SettingsFlag) String 

func (f *SettingsFlag) String() string

String always returns an empty string. It is required to fulfil the flag.Value interface.

func (*SettingsFlag) Type 

func (f *SettingsFlag) Type() string

Type reports the type of contents (setting=value) expected to be parsed by Set. It is used to build the CLI usage string.

type StringSet 

type StringSet map[string]struct{}

func MakeStringSet 

func MakeStringSet(strings ...string) StringSet

func (StringSet) Add 

func (set StringSet) Add(s string)

func (StringSet) Count 

func (set StringSet) Count() int

func (StringSet) Del 

func (set StringSet) Del(s string)

func (StringSet) Has 

func (set StringSet) Has(s string) (exists bool)

type StringsFlag 

type StringsFlag struct {
	// contains filtered or unexported fields
}

StringsFlag collects multiple usages of the same flag into an array of strings. Duplicate values will be ignored.

func NewStringsFlag 

func NewStringsFlag(arr *[]string) *StringsFlag

NewStringsFlag creates a new, but unregistered StringsFlag instance. Results of the flag usage will be appended to `arr`. If the slice is not initially empty, its first value will be used as default. If the flag is used, the slice will be emptied first.

func StringArrFlag 

func StringArrFlag(fs *flag.FlagSet, name, def, usage string) *StringsFlag

StringArrFlag creates and registers a new StringsFlag with the given FlagSet. If no FlagSet is passed, flag.CommandLine will be used as target FlagSet.

func StringArrVarFlag 

func StringArrVarFlag(fs *flag.FlagSet, arr *[]string, name, usage string) *StringsFlag

StringArrVarFlag creates and registers a new StringsFlag with the given FlagSet. Results of the flag usage will be appended to `arr`. If the slice is not initially empty, its first value will be used as default. If the flag is used, the slice will be emptied first. If no FlagSet is passed, flag.CommandLine will be used as target FlagSet.

func (*StringsFlag) Get 

func (f *StringsFlag) Get() interface{}

Get returns the backing slice its contents as interface{}. The type used is `[]string`.

func (*StringsFlag) List 

func (f *StringsFlag) List() []string

List returns the current set values.

func (*StringsFlag) Register 

func (f *StringsFlag) Register(fs *flag.FlagSet, name, usage string)

Register registers the StringsFlag instance with a FlagSet. A valid FlagSet must be used. Register panics if the flag is already registered.

func (*StringsFlag) Set 

func (f *StringsFlag) Set(v string) error

Set is used to pass usage of the flag to StringsFlag. Set adds the new value to the backing array. The array will be emptied on Set, if the backing array still contains the default value.

func (*StringsFlag) SetDefault 

func (f *StringsFlag) SetDefault(v string)

SetDefault sets the flags new default value. This overwrites the contents in the backing array.

func (*StringsFlag) String 

func (f *StringsFlag) String() string

String joins all it's values set into a comma-separated string.

func (*StringsFlag) Type 

func (f *StringsFlag) Type() string

Type reports the type of contents (string) expected to be parsed by Set. It is used to build the CLI usage string.

type TCPTuple 

type TCPTuple struct {
	IPLength         int
	SrcIP, DstIP     net.IP
	SrcPort, DstPort uint16
	StreamID         uint32
	// contains filtered or unexported fields
}

func TCPTupleFromIPPort 

func TCPTupleFromIPPort(t *IPPortTuple, streamID uint32) TCPTuple

func (*TCPTuple) ComputeHashebles 

func (t *TCPTuple) ComputeHashebles()

func (*TCPTuple) Hashable 

func (t *TCPTuple) Hashable() HashableTCPTuple

Hashable() returns a hashable value that uniquely identifies the TCP tuple.

func (TCPTuple) IPPort 

func (t TCPTuple) IPPort() *IPPortTuple

Returns a pointer to the equivalent IpPortTuple.

func (TCPTuple) String 

func (t TCPTuple) String() string

type Time 

type Time time.Time

Time is an abstraction for the time.Time type

func MustParseTime 

func MustParseTime(timespec string) Time

MustParseTime is a convenience equivalent of the ParseTime function that panics in case of errors.

func ParseTime 

func ParseTime(timespec string) (Time, error)

ParseTime parses a time in the TsLayout format.

func (Time) Hash32 

func (t Time) Hash32(h hash.Hash32) error

func (Time) MarshalJSON 

func (t Time) MarshalJSON() ([]byte, error)

MarshalJSON implements json.Marshaler interface. The time is a quoted string in the JsTsLayout format.

func (Time) String 

func (t Time) String() string

func (*Time) UnmarshalJSON 

func (t *Time) UnmarshalJSON(data []byte) (err error)

UnmarshalJSON implements js.Unmarshaler interface. The time is expected to be a quoted string in TsLayout format.

type Value 

type Value interface{}

Value type held in the cache. Cannot be nil.

type Version 

type Version struct {
	Major  int
	Minor  int
	Bugfix int
	Meta   string
	// contains filtered or unexported fields
}

func NewVersion 

func NewVersion(version string) (*Version, error)

NewVersion expects a string in the format: major.minor.bugfix(-meta)

func (*Version) IsMajor 

func (v *Version) IsMajor(major int) bool

func (*Version) LessThan 

func (v *Version) LessThan(v1 *Version) bool

LessThan returns true if v is strictly smaller than v1. When comparing, the major, minor and bugfix numbers are compared in order. The meta part is not taken into account.

func (*Version) LessThanOrEqual 

func (v *Version) LessThanOrEqual(withMeta bool, v1 *Version) bool

LessThan returns true if v is strictly smaller than v1. When comparing, the major, minor, bugfix and pre-release numbers are compared in order.

func (*Version) String 

func (v *Version) String() string

type VersionizedString 

type VersionizedString struct {
	MinVersion string `config:"min_version"`
	Value      string `config:"value"`
}

Source Files

View all Source files

Directories

Path Synopsis
Package atomic provides common primitive types with atomic accessors.
 Package atomic provides common primitive types with atomic accessors.
Package dtfmt provides time formatter support with pattern syntax mostly similar to joda DateTimeFormat.
 Package dtfmt provides time formatter support with pattern syntax mostly similar to joda DateTimeFormat.
Package schema contains helper utilities to parse, convert, rename, and reorganize data from the format returned by the various monitored systems to the data model used by Metricbeat.
 Package schema contains helper utilities to parse, convert, rename, and reorganize data from the format returned by the various monitored systems to the data model used by Metricbeat.
mapstriface
Package mapstriface contains utilities for transforming map[string]interface{} objects into metricbeat events.
 Package mapstriface contains utilities for transforming map[string]interface{} objects into metricbeat events.
mapstrstr
Package mapstrstr contains utilities for transforming map[string]string objects into metricbeat events.
 Package mapstrstr contains utilities for transforming map[string]string objects into metricbeat events.
Package streambuf provides helpers for buffering multiple packet payloads and some general parsing functions.
 Package streambuf provides helpers for buffering multiple packet payloads and some general parsing functions.

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