Package org.jline.terminal
Class TerminalBuilder
java.lang.Object
org.jline.terminal.TerminalBuilder
Builder class to create terminals.
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Nested Class Summary
Nested Classes -
Field Summary
FieldsModifier and TypeFieldDescriptionprivate Attributes
private int
private Boolean
private Boolean
private Charset
private Boolean
private Boolean
private InputStream
private Boolean
private Boolean
private Boolean
private String
private boolean
private OutputStream
private boolean
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final String
private String
private String
private Terminal.SignalHandler
private Size
private Boolean
private static final AtomicReference
<Terminal> private TerminalBuilder.SystemOutput
private static final AtomicReference
<Terminal> private String
private static final int
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionattributes
(Attributes attributes) Attributes to use when creating a non system terminal, i.e.build()
Builds the terminal.static TerminalBuilder
builder()
Creates a new terminal builder instance.private void
checkProvider
(String provider, IllegalStateException exception, List<TerminalProvider> providers, Boolean load, String property, String name) codepage
(int codepage) Deprecated.JLine now writes Unicode output independently from the selected code page.color
(boolean color) private Terminal
doBuild()
dumb
(boolean dumb) Enables or disables thePROP_PROVIDER_DUMB
/dumb
terminal provider.Set the encoding to use for reading/writing from the console.Set theCharset
to use for reading/writing from the console.exec
(boolean exec) Enables or disables thePROP_PROVIDER_EXEC
/exec
terminal provider.ffm
(boolean ffm) Enables or disables thePROP_PROVIDER_FFM
/ffm
terminal provider.private static Boolean
getBoolean
(String name, Boolean def) private static Charset
getCodepageCharset
(int codepage) private String
getDumbTerminalType
(Boolean dumb, SystemStream systemStream) private static String
getProviders
(String provider, IllegalStateException exception) Get the list of available terminal providers.jansi
(boolean jansi) Enables or disables thePROP_PROVIDER_JANSI
/jansi
terminal provider.jna
(boolean jna) Enables or disables thePROP_PROVIDER_JNA
/jna
terminal provider.jni
(boolean jni) Enables or disables thePROP_PROVIDER_JNI
/jni
terminal provider.private static <S> S
nativeSignals
(boolean nativeSignals) paused
(boolean paused) Initial paused state of the terminal (defaults to false).Forces the usage of the give terminal provider.Sets the list of providers to try when creating the terminal.private static SystemStream
select
(Map<SystemStream, Boolean> system, SystemStream... streams) private SystemStream
select
(Map<SystemStream, Boolean> system, TerminalBuilder.SystemOutput systemOutput) static void
setTerminalOverride
(Terminal terminal) Deprecated.signalHandler
(Terminal.SignalHandler signalHandler) Determines the default value for signal handlers.Initial size to use when creating a non system terminal, i.e.streams
(InputStream in, OutputStream out) system
(boolean system) systemOutput
(TerminalBuilder.SystemOutput systemOutput) Indicates which standard stream should be used when displaying to the terminal.static Terminal
terminal()
Returns the default system terminal.
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Field Details
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PROP_ENCODING
- See Also:
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PROP_CODEPAGE
- See Also:
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PROP_TYPE
- See Also:
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PROP_PROVIDER
- See Also:
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PROP_PROVIDERS
- See Also:
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PROP_PROVIDER_FFM
- See Also:
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PROP_PROVIDER_JNI
- See Also:
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PROP_PROVIDER_JANSI
- See Also:
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PROP_PROVIDER_JNA
- See Also:
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PROP_PROVIDER_EXEC
- See Also:
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PROP_PROVIDER_DUMB
- See Also:
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PROP_PROVIDERS_DEFAULT
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PROP_FFM
- See Also:
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PROP_JNI
- See Also:
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PROP_JANSI
- See Also:
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PROP_JNA
- See Also:
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PROP_EXEC
- See Also:
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PROP_DUMB
- See Also:
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PROP_DUMB_COLOR
- See Also:
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PROP_OUTPUT
- See Also:
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PROP_OUTPUT_OUT
- See Also:
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PROP_OUTPUT_ERR
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PROP_OUTPUT_OUT_ERR
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PROP_OUTPUT_ERR_OUT
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PROP_OUTPUT_FORCED_OUT
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PROP_OUTPUT_FORCED_ERR
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PROP_NON_BLOCKING_READS
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PROP_COLOR_DISTANCE
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PROP_DISABLE_ALTERNATE_CHARSET
- See Also:
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PROP_FILE_DESCRIPTOR_CREATION_MODE
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PROP_FILE_DESCRIPTOR_CREATION_MODE_NATIVE
- See Also:
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PROP_FILE_DESCRIPTOR_CREATION_MODE_REFLECTION
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PROP_FILE_DESCRIPTOR_CREATION_MODE_DEFAULT
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PROP_REDIRECT_PIPE_CREATION_MODE
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PROP_REDIRECT_PIPE_CREATION_MODE_NATIVE
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PROP_REDIRECT_PIPE_CREATION_MODE_REFLECTION
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PROP_REDIRECT_PIPE_CREATION_MODE_DEFAULT
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DEPRECATED_PROVIDERS
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PROP_DISABLE_DEPRECATED_PROVIDER_WARNING
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SYSTEM_TERMINAL
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TERMINAL_OVERRIDE
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name
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in
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out
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type
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encoding
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codepage
private int codepage -
system
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systemOutput
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provider
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providers
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jna
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jansi
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jni
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exec
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ffm
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dumb
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color
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attributes
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size
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nativeSignals
private boolean nativeSignals -
signalHandler
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paused
private boolean paused -
UTF8_CODE_PAGE
private static final int UTF8_CODE_PAGE- See Also:
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Constructor Details
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TerminalBuilder
private TerminalBuilder()
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Method Details
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terminal
Returns the default system terminal. Terminals should be closed properly using theCloseable.close()
method in order to restore the original terminal state.This call is equivalent to:
builder().build()
- Returns:
- the default system terminal
- Throws:
IOException
- if an error occurs
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builder
Creates a new terminal builder instance.- Returns:
- a builder
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name
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streams
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system
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systemOutput
Indicates which standard stream should be used when displaying to the terminal. The default is to use the system output stream. Building a system terminal will fail if one of the stream specified is not linked to the controlling terminal.- Parameters:
systemOutput
- The mode to choose the output stream.- Returns:
- The builder.
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provider
Forces the usage of the give terminal provider.- Parameters:
provider
- TheTerminalProvider
's name to use when creating the Terminal.- Returns:
- The builder.
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providers
Sets the list of providers to try when creating the terminal. If not specified, the system propertyPROP_PROVIDERS
will be used if set. Else, the valuePROP_PROVIDERS_DEFAULT
will be used.- Parameters:
providers
- The list ofTerminalProvider
's names to check when creating the Terminal.- Returns:
- The builder.
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jna
Enables or disables thePROP_PROVIDER_JNA
/jna
terminal provider. If not specified, the system propertyPROP_JNA
will be used if set. If not specified, the provider will be checked. -
jansi
Enables or disables thePROP_PROVIDER_JANSI
/jansi
terminal provider. If not specified, the system propertyPROP_JANSI
will be used if set. If not specified, the provider will be checked. -
jni
Enables or disables thePROP_PROVIDER_JNI
/jni
terminal provider. If not specified, the system propertyPROP_JNI
will be used if set. If not specified, the provider will be checked. -
exec
Enables or disables thePROP_PROVIDER_EXEC
/exec
terminal provider. If not specified, the system propertyPROP_EXEC
will be used if set. If not specified, the provider will be checked. -
ffm
Enables or disables thePROP_PROVIDER_FFM
/ffm
terminal provider. If not specified, the system propertyPROP_FFM
will be used if set. If not specified, the provider will be checked. -
dumb
Enables or disables thePROP_PROVIDER_DUMB
/dumb
terminal provider. If not specified, the system propertyPROP_DUMB
will be used if set. If not specified, the provider will be checked. -
type
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color
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encoding
Set the encoding to use for reading/writing from the console. Ifnull
(the default value), JLine will automatically select aCharset
, usually the default system encoding. However, on some platforms (e.g. Windows) it may use a different one depending on theTerminal
implementation.Use
Terminal.encoding()
to get theCharset
that should be used for aTerminal
.- Parameters:
encoding
- The encoding to use or null to automatically select one- Returns:
- The builder
- Throws:
UnsupportedCharsetException
- If the given encoding is not supported- See Also:
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encoding
Set theCharset
to use for reading/writing from the console. Ifnull
(the default value), JLine will automatically select aCharset
, usually the default system encoding. However, on some platforms (e.g. Windows) it may use a different one depending on theTerminal
implementation.Use
Terminal.encoding()
to get theCharset
that should be used to read/write from aTerminal
.- Parameters:
encoding
- The encoding to use or null to automatically select one- Returns:
- The builder
- See Also:
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codepage
Deprecated.JLine now writes Unicode output independently from the selected code page. Using this option will only make it emulate the selected code page forTerminal.input()
andTerminal.output()
.- Parameters:
codepage
- the codepage- Returns:
- The builder
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attributes
Attributes to use when creating a non system terminal, i.e. when the builder has been given the input and output streams using thestreams(InputStream, OutputStream)
method or whensystem(boolean)
has been explicitly called withfalse
.- Parameters:
attributes
- the attributes to use- Returns:
- The builder
- See Also:
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size
Initial size to use when creating a non system terminal, i.e. when the builder has been given the input and output streams using thestreams(InputStream, OutputStream)
method or whensystem(boolean)
has been explicitly called withfalse
.- Parameters:
size
- the initial size- Returns:
- The builder
- See Also:
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nativeSignals
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signalHandler
Determines the default value for signal handlers. All signals will be mapped to the given handler.- Parameters:
signalHandler
- the default signal handler- Returns:
- The builder
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paused
Initial paused state of the terminal (defaults to false). By default, the terminal is started, but in some cases, one might want to make sure the input stream is not consumed before needed, in which case the terminal needs to be created in a paused state.- Parameters:
paused
- the initial paused state- Returns:
- The builder
- See Also:
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build
Builds the terminal.- Returns:
- the newly created terminal, never
null
- Throws:
IOException
- if an error occurs
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doBuild
- Throws:
IOException
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getDumbTerminalType
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computeSystemOutput
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computeType
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computeEncoding
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getProviders
Get the list of available terminal providers. This list is sorted according to thePROP_PROVIDERS
system property.- Parameters:
provider
- if notnull
, only this provider will be checkedexception
- if a provider throws an exception, it will be added to this exception as a suppressed exception- Returns:
- a list of terminal providers
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checkProvider
private void checkProvider(String provider, IllegalStateException exception, List<TerminalProvider> providers, Boolean load, String property, String name) -
select
private SystemStream select(Map<SystemStream, Boolean> system, TerminalBuilder.SystemOutput systemOutput) -
select
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getParentProcessCommand
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getBoolean
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load
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getCodepageCharset
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setTerminalOverride
Deprecated.Allows an application to override the result ofbuild()
. The intended use case is to allow a container or server application to control an embedded application that uses a LineReader that uses Terminal constructed with TerminalBuilder.build but provides no public api for setting theLineReader
of theTerminal
. For example, the sbt build tool uses aLineReader
to implement an interactive shell. One of its supported commands isconsole
which invokes the scala REPL. The scala REPL also uses aLineReader
and it is necessary to override theTerminal
used by the the REPL to share the sameTerminal
instance used by sbt.When this method is called with a non-null
Terminal
, all subsequent calls tobuild()
will return the providedTerminal
regardless of how theTerminalBuilder
was constructed. The default behavior ofTerminalBuilder
can be restored by calling setTerminalOverride with a nullTerminal
Usage of setTerminalOverride should be restricted to cases where it isn't possible to update the api of the nested application to accept a
instance
.- Parameters:
terminal
- theTerminal
to globally override
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