StreamManager (Apache Jena ARQ)

java.lang.Object
- org.apache.jena.riot.system.stream.StreamManager

```
public class StreamManager
extends Object
```
Management of stream opening, including redirecting through a location mapper whereby a name (e.g. URL) is redirected to another name (e.g. local file). Includes filename to IRI, handling ".gz" and "-"

Field Summary

Fields
Modifier and Type Field and Description

static boolean logAllLookups

Fields
Modifier and Type	Field and Description
`static boolean`	`logAllLookups`

Constructor Summary

Constructors
Constructor and Description

StreamManager()
Create a StreamManager with no locator or location mapper.

Constructors
Constructor and Description
`StreamManager()` Create a `StreamManager` with no locator or location mapper.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`StreamManager`	`addLocator(Locator loc)` Add a locator to the end of the locators list.
`void`	`clearLocators()` Remove all locators
`StreamManager`	`clone()` Create a deep copy of this StreamManager
`static StreamManager`	`createStd()` Return a default configuration StreamManager with a `LocatorFile`, `LocatorHTTP`, `LocatorFTP` and `LocatorClassLoader`
`static StreamManager`	`get()` Return the global `StreamManager`.
`static StreamManager`	`get(Context context)` Return the `StreamManager` in a context, or the global one if the context is null or does not contain a valid entry for a `StreamManager`.
`LocationMapper`	`getLocationMapper()` Get the location mapping
`boolean`	`hasMapping(String filenameOrURI)` Test whether a mapping exists
`List<Locator>`	`locators()` Return an immutable list of all the handlers
`static StreamManager`	`makeDefaultStreamManager()` Deprecated.
`String`	`mapURI(String filenameOrURI)` Apply the mapping of a filename or URI
`TypedInputStream`	`open(String filenameOrURI)` Open a file using the locators of this StreamManager.
`TypedInputStream`	`openNoMap(String filenameOrURI)` Open a file using the locators of this StreamManager but without location mapping.
`TypedInputStream`	`openNoMapOrNull(String filenameOrURI)` Open a file using the locators of this StreamManager without location mapping.
`void`	`remove(Locator loc)` Remove a locator.
`static void`	`setGlobal(StreamManager streamManager)` Set the global `StreamManager`.
`void`	`setLocationMapper(LocationMapper _mapper)` Set the location mapping

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - logAllLookups
```
public static boolean logAllLookups
```
- Constructor Detail
  - StreamManager
```
public StreamManager()
```
    Create a StreamManager with no locator or location mapper.
- Method Detail
  - createStd
```
public static StreamManager createStd()
```
    Return a default configuration StreamManager with a LocatorFile, LocatorHTTP, LocatorFTP and LocatorClassLoader
  - makeDefaultStreamManager
```
@Deprecated
public static StreamManager makeDefaultStreamManager()
```
    Deprecated.
  - get
```
public static StreamManager get()
```
    Return the global StreamManager.
  - get
```
public static StreamManager get(Context context)
```
    Return the StreamManager in a context, or the global one if the context is null or does not contain a valid entry for a StreamManager.
    The StreamManager is keyed in the context by SysRIOT.sysStreamManager.
  - setGlobal
```
public static void setGlobal(StreamManager streamManager)
```
    Set the global StreamManager.
  - clone
```
public StreamManager clone()
```
    Create a deep copy of this StreamManager
    
    Overrides:
    
    clone in class Object
  - open
```
public TypedInputStream open(String filenameOrURI)
```
    Open a file using the locators of this StreamManager. Returns null if not found.
  - hasMapping
```
public boolean hasMapping(String filenameOrURI)
```
    Test whether a mapping exists
  - mapURI
```
public String mapURI(String filenameOrURI)
```
    Apply the mapping of a filename or URI
  - openNoMap
```
public TypedInputStream openNoMap(String filenameOrURI)
```
    Open a file using the locators of this StreamManager but without location mapping. Throws RiotNotFoundException if not found.
  - openNoMapOrNull
```
public TypedInputStream openNoMapOrNull(String filenameOrURI)
```
    Open a file using the locators of this StreamManager without location mapping. Return null if not found
  - setLocationMapper
```
public void setLocationMapper(LocationMapper _mapper)
```
    Set the location mapping
  - getLocationMapper
```
public LocationMapper getLocationMapper()
```
    Get the location mapping
  - locators
```
public List<Locator> locators()
```
    Return an immutable list of all the handlers
  - remove
```
public void remove(Locator loc)
```
    Remove a locator.
  - clearLocators
```
public void clearLocators()
```
    Remove all locators
  - addLocator
```
public StreamManager addLocator(Locator loc)
```
    Add a locator to the end of the locators list. Returns this StreamManager.

Class StreamManager

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

logAllLookups

Constructor Detail

StreamManager

Method Detail

createStd

makeDefaultStreamManager

get

get

setGlobal

clone

open

hasMapping

mapURI

openNoMap

openNoMapOrNull

setLocationMapper

getLocationMapper

locators

remove

clearLocators

addLocator