kafka.etl
Class Props

java.lang.Object
  java.util.Dictionary<K,V>
      java.util.Hashtable<java.lang.Object,java.lang.Object>
          java.util.Properties
              kafka.etl.Props

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.Map<java.lang.Object,java.lang.Object>

public class Props
extends java.util.Properties

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.Properties

defaults

Constructor Summary

Props()
default constructor

Props(java.io.InputStream... inputStreams)
construct props from a list of input streams

Props(java.util.List<java.lang.String> files)
construct props from a list of files

Props(java.util.Map<java.lang.String,java.lang.String>... props)
construct props from a list of maps

Props(java.util.Properties... properties)
construct props from a list of Properties

Props(Props props)
copy constructor

Props(java.lang.String... files)
construct props from a list of files

Method Summary

static Props	clone(Props p) clone a Props
boolean	equalsProps(Props p) compare two props
java.lang.Boolean	getBoolean(java.lang.String key) get boolean value
java.lang.Boolean	getBoolean(java.lang.String key, java.lang.Boolean defaultValue) get boolean value with default value
double	getDouble(java.lang.String name) get double value
java.lang.Double	getDouble(java.lang.String name, double defaultValue) get double value with default value
java.lang.Integer	getInt(java.lang.String name) get integer value
java.lang.Integer	getInt(java.lang.String name, java.lang.Integer defaultValue) get integer value with default value
java.util.Set<java.lang.String>	getKeySet() get all property names
java.lang.Long	getLong(java.lang.String name) get long value
java.lang.Long	getLong(java.lang.String name, java.lang.Long defaultValue) get long value with default value
java.util.Map<java.lang.String,java.lang.String>	getMapByPrefix(java.lang.String prefix) Get a map of all properties by string prefix
java.util.List<java.lang.String>	getStringList(java.lang.String key) get property of "key" and split the value by " ,"
java.util.List<java.lang.String>	getStringList(java.lang.String key, java.util.List<java.lang.String> defaultValue) get string list with default value.
java.util.List<java.lang.String>	getStringList(java.lang.String key, java.util.List<java.lang.String> defaultValue, java.lang.String sep) get string list with default value
java.util.List<java.lang.String>	getStringList(java.lang.String key, java.lang.String sep) get property of "key" and split the value by "sep"
java.net.URI	getUri(java.lang.String name) get URI value
java.net.URI	getUri(java.lang.String name, java.lang.String defaultValue) get URI value
java.net.URI	getUri(java.lang.String name, java.net.URI defaultValue) get URI value with default value
protected <T> T	getValue(java.lang.String key, java.lang.Class<T> mclass)
protected <T> T	getValue(java.lang.String key, T defaultValue)
void	logProperties(java.lang.String comment) log properties
static Props	of(java.lang.String... args) build props from a list of strings and interpret them as key, value, key, value,....
void	put(java.util.Properties properties) Put the given Properties into the Props.
void	store(java.io.OutputStream out) Store all properties

Methods inherited from class java.util.Properties

getProperty, getProperty, list, list, load, load, loadFromXML, propertyNames, save, setProperty, store, store, storeToXML, storeToXML, stringPropertyNames

Methods inherited from class java.util.Hashtable

clear, clone, contains, containsKey, containsValue, elements, entrySet, equals, get, hashCode, isEmpty, keys, keySet, put, putAll, rehash, remove, size, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Props

public Props()

default constructor

Props

public Props(Props props)

copy constructor

Parameters:

props -

Props

public Props(java.lang.String... files)
      throws java.io.FileNotFoundException,
             java.io.IOException

construct props from a list of files

Parameters:

files - paths of files

Throws:

java.io.FileNotFoundException

java.io.IOException

Props

public Props(java.util.List<java.lang.String> files)
      throws java.io.FileNotFoundException,
             java.io.IOException

construct props from a list of files

Parameters:

files - paths of files

Throws:

java.io.FileNotFoundException

java.io.IOException

Props

public Props(java.io.InputStream... inputStreams)
      throws java.io.IOException

construct props from a list of input streams

Parameters:

inputStreams -

Throws:

java.io.IOException

Props

public Props(java.util.Map<java.lang.String,java.lang.String>... props)

construct props from a list of maps

Parameters:

props -

Props

public Props(java.util.Properties... properties)

construct props from a list of Properties

Parameters:

properties -

Method Detail

of

public static Props of(java.lang.String... args)

build props from a list of strings and interpret them as key, value, key, value,....

Parameters:

args -

Returns:

props

put

public void put(java.util.Properties properties)

Put the given Properties into the Props.

Parameters:

properties - The properties to put

getStringList

public java.util.List<java.lang.String> getStringList(java.lang.String key)

get property of "key" and split the value by " ,"

Parameters:

key -

Returns:

list of values

getStringList

public java.util.List<java.lang.String> getStringList(java.lang.String key,
                                                      java.lang.String sep)

get property of "key" and split the value by "sep"

Parameters:

key -

sep -

Returns:

string list of values

getStringList

public java.util.List<java.lang.String> getStringList(java.lang.String key,
                                                      java.util.List<java.lang.String> defaultValue)

get string list with default value. default delimiter is ","

Parameters:

key -

defaultValue -

Returns:

string list of values

getStringList

public java.util.List<java.lang.String> getStringList(java.lang.String key,
                                                      java.util.List<java.lang.String> defaultValue,
                                                      java.lang.String sep)

get string list with default value

Parameters:

key -

defaultValue -

Returns:

string list of values

getValue

protected <T> T getValue(java.lang.String key,
                         T defaultValue)
              throws java.lang.Exception

Throws:

java.lang.Exception

getValue

protected <T> T getValue(java.lang.String key,
                         java.lang.Class<T> mclass)
              throws java.lang.Exception

Throws:

java.lang.Exception

getBoolean

public java.lang.Boolean getBoolean(java.lang.String key,
                                    java.lang.Boolean defaultValue)
                             throws java.lang.Exception

get boolean value with default value

Parameters:

key -

defaultValue -

Returns:

boolean value

Throws:

java.lang.Exception - if value is not of type boolean or string

getBoolean

public java.lang.Boolean getBoolean(java.lang.String key)
                             throws java.lang.Exception

get boolean value

Parameters:

key -

Returns:

boolean value

Throws:

java.lang.Exception - if value is not of type boolean or string or if value doesn't exist

getLong

public java.lang.Long getLong(java.lang.String name,
                              java.lang.Long defaultValue)
                       throws java.lang.Exception

get long value with default value

Parameters:

name -

defaultValue -

Returns:

long value

Throws:

java.lang.Exception - if value is not of type long or string

getLong

public java.lang.Long getLong(java.lang.String name)
                       throws java.lang.Exception

get long value

Parameters:

name -

Returns:

long value

Throws:

java.lang.Exception - if value is not of type long or string or if value doesn't exist

getInt

public java.lang.Integer getInt(java.lang.String name,
                                java.lang.Integer defaultValue)
                         throws java.lang.Exception

get integer value with default value

Parameters:

name -

defaultValue -

Returns:

integer value

Throws:

java.lang.Exception - if value is not of type integer or string

getInt

public java.lang.Integer getInt(java.lang.String name)
                         throws java.lang.Exception

get integer value

Parameters:

name -

Returns:

integer value

Throws:

java.lang.Exception - if value is not of type integer or string or if value doesn't exist

getDouble

public java.lang.Double getDouble(java.lang.String name,
                                  double defaultValue)
                           throws java.lang.Exception

get double value with default value

Parameters:

name -

defaultValue -

Returns:

double value

Throws:

java.lang.Exception - if value is not of type double or string

getDouble

public double getDouble(java.lang.String name)
                 throws java.lang.Exception

get double value

Parameters:

name -

Returns:

double value

Throws:

java.lang.Exception - if value is not of type double or string or if value doesn't exist

getUri

public java.net.URI getUri(java.lang.String name,
                           java.net.URI defaultValue)
                    throws java.lang.Exception

get URI value with default value

Parameters:

name -

defaultValue -

Returns:

URI value

Throws:

java.lang.Exception - if value is not of type URI or string

getUri

public java.net.URI getUri(java.lang.String name,
                           java.lang.String defaultValue)
                    throws java.lang.Exception

get URI value

Parameters:

name -

defaultValue -

Returns:

URI value

Throws:

java.lang.Exception - if value is not of type URI or string

getUri

public java.net.URI getUri(java.lang.String name)
                    throws java.lang.Exception

get URI value

Parameters:

name -

Returns:

URI value

Throws:

java.lang.Exception - if value is not of type URI or string or if value doesn't exist

equalsProps

public boolean equalsProps(Props p)

compare two props

Parameters:

p -

Returns:

true or false

getMapByPrefix

public java.util.Map<java.lang.String,java.lang.String> getMapByPrefix(java.lang.String prefix)

Get a map of all properties by string prefix

Parameters:

prefix - The string prefix

store

public void store(java.io.OutputStream out)
           throws java.io.IOException

Store all properties

Parameters:

out - The stream to write to

Throws:

java.io.IOException - If there is an error writing

getKeySet

public java.util.Set<java.lang.String> getKeySet()

get all property names

Returns:

set of property names

logProperties

public void logProperties(java.lang.String comment)

log properties

Parameters:

comment -

clone

public static Props clone(Props p)

clone a Props

Parameters:

p -

Returns:

props