org.codehaus.groovy.control

## Class CompilerConfiguration

- java.lang.Object
- - org.codehaus.groovy.control.CompilerConfiguration

    public class CompilerConfiguration
    extends Object

Compilation control flags and coordination stuff.

Version:
  $Id: CompilerConfiguration.java 20901 2010-10-03 12:49:20Z roshandawrani $
Author:
  Chris Poirier, Jochen Theodorou, Jim White

### Field Summary

Fields
`static String` `currentJVMVersion`
`static CompilerConfiguration` `DEFAULT` A convenience for getting a default configuration.
`static String` `POST_JDK5` This (`"1.5"`) is the value for targetBytecode to compile for a JDK 1.5 or later JVM.
`static String` `PRE_JDK5` This (`"1.4"``) is the value for targetBytecode to compile for a JDK 1.4 JVM.`

### Constructor Summary

Constructors
Constructor and Description
`CompilerConfiguration()` Sets the Flags to defaults.
`CompilerConfiguration(CompilerConfiguration configuration)` Copy constructor.
`CompilerConfiguration(Properties configuration)` Sets the Flags to the specified configuration, with defaults for those not supplied.

### Method Summary

Methods
`void` `configure(Properties configuration)` Method to configure a this CompilerConfiguration by using Properties.
`List<String>` `getClasspath()`
`boolean` `getDebug()` Returns true if debugging operation has been requested.
`String` `getDefaultScriptExtension()`
`Map<String,Object>` `getJointCompilationOptions()` Gets the joint compilation options for this configuration.
`int` `getMinimumRecompilationInterval()`
`PrintWriter` `getOutput()` Gets the currently configured output writer.
`ParserPluginFactory` `getPluginFactory()`
`boolean` `getRecompileGroovySource()`
`String` `getScriptBaseClass()` Gets the name of the base class for scripts.
`Set<String>` `getScriptExtensions()`
`String` `getSourceEncoding()` Gets the currently configured source file encoding.
`String` `getTargetBytecode()` Retrieves the compiler bytecode compatibility mode.
`File` `getTargetDirectory()` Gets the target directory for writing classes.
`int` `getTolerance()` Returns the requested error tolerance.
`boolean` `getVerbose()` Returns true if verbose operation has been requested.
`int` `getWarningLevel()` Gets the currently configured warning level.
`void` `setClasspath(String classpath)` Sets the classpath.
`void` `setClasspathList(List<String> l)` sets the classpath using a list of Strings
`void` `setDebug(boolean debug)` Turns debugging operation on or off.
`void` `setDefaultScriptExtension(String defaultScriptExtension)`
`void` `setJointCompilationOptions(Map<String,Object> options)` Sets the joint compilation options for this configuration.
`void` `setMinimumRecompilationInterval(int time)`
`void` `setOutput(PrintWriter output)` Sets the output writer.
`void` `setPluginFactory(ParserPluginFactory pluginFactory)`
`void` `setRecompileGroovySource(boolean recompile)`
`void` `setScriptBaseClass(String scriptBaseClass)` Sets the name of the base class for scripts.
`void` `setScriptExtensions(Set<String> scriptExtensions)`
`void` `setSourceEncoding(String encoding)` Sets the encoding to be used when reading source files.
`void` `setTargetBytecode(String version)` Allow setting the bytecode compatibility.
`void` `setTargetDirectory(File directory)` Sets the target directory.
`void` `setTargetDirectory(String directory)` Sets the target directory.
`void` `setTolerance(int tolerance)` Sets the error tolerance, which is the number of non-fatal errors (per unit) that should be tolerated before compilation is aborted.
`void` `setVerbose(boolean verbose)` Turns verbose operation on or off.
`void` `setWarningLevel(int level)` Sets the warning level.

### Methods inherited from class java.lang.Object

`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

### Field Detail

#### POST_JDK5

    public static final String POST_JDK5

This (`"1.5"`) is the value for targetBytecode to compile for a JDK 1.5 or later JVM.

See Also:
  Constant Field Values

#### PRE_JDK5

    public static final String PRE_JDK5

This (`"1.4"``) is the value for targetBytecode to compile for a JDK 1.4 JVM.`

See Also:
  Constant Field Values

#### currentJVMVersion

    public static final String currentJVMVersion

#### DEFAULT

    public static final CompilerConfiguration DEFAULT

A convenience for getting a default configuration. Do not modify it! See `CompilerConfiguration(Properties)` for an example on how to make a suitable copy to modify. But if you're really starting from a default context, then you probably just want `new CompilerConfiguration()`.

### Constructor Detail

#### CompilerConfiguration

    public CompilerConfiguration()

Sets the Flags to defaults.

#### CompilerConfiguration

    public CompilerConfiguration(CompilerConfiguration configuration)

Copy constructor. Use this if you have a mostly correct configuration for your compilation but you want to make a some changes programmatically. An important reason to prefer this approach is that your code will most likely be forward compatible with future changes to this configuration API.
An example of this copy constructor at work:

        // In all likelihood there is already a configuration in your code's context
        // for you to copy, but for the sake of this example we'll use the global default.
        CompilerConfiguration myConfiguration = new CompilerConfiguration(CompilerConfiguration.DEFAULT);
        myConfiguration.setDebug(true);

Parameters:
  `configuration` - The configuration to copy.

#### CompilerConfiguration

    public CompilerConfiguration(Properties configuration)
                          throws ConfigurationException

Sets the Flags to the specified configuration, with defaults for those not supplied. Note that those "defaults" here do not include checking the settings in `System.getProperties()` in general, only file.encoding, groovy.target.directory and groovy.source.encoding are.
If you want to set a few flags but keep Groovy's default configuration behavior then be sure to make your settings in a Properties that is backed by `System.getProperties()` (which is done using this constructor).
That might be done like this:

        Properties myProperties = new Properties(System.getProperties());
        myProperties.setProperty("groovy.output.debug", "true");
        myConfiguration = new CompilerConfiguration(myProperties);

And you also have to contend with a possible SecurityException when getting the system properties (See `System.getProperties()`).
An safer method would be to copy a default CompilerConfiguration and make your changes there using the setter.

        // In all likelihood there is already a configuration for you to copy,
        // but for the sake of this example we'll use the global default.
        CompilerConfiguration myConfiguration = new CompilerConfiguration(CompilerConfiguration.DEFAULT);
        myConfiguration.setDebug(true);

Another reason to use the copy constructor rather than this one is that you must call `setOutput(java.io.PrintWriter)`. Calling `setOutput(null)` is valid and will set up a `PrintWriter` to a bit bucket. The copy constructor will of course set the same one as the original.

Property Key | Get/Set Property Name
--- | ---
`"groovy.warnings"` | `getWarningLevel()`
`"groovy.source.encoding"` | `getSourceEncoding()`
`"groovy.target.directory"` | `getTargetDirectory()`
`"groovy.target.bytecode"` | `getTargetBytecode()`
`"groovy.classpath"` | `getClasspath()`
`"groovy.output.verbose"` | `getVerbose()`
`"groovy.output.debug"` | `getDebug()`
`"groovy.errors.tolerance"` | `getTolerance()`
`"groovy.script.extension"` | `getDefaultScriptExtension()`
`"groovy.script.base"` | `getScriptBaseClass()`
`"groovy.recompile"` | `getRecompileGroovySource()`
`"groovy.recompile.minimumInterval"` | `getMinimumRecompilationInterval()`

Parameters:
  `configuration` - The properties to get flag values from.
Throws:
  `ConfigurationException`

### Method Detail

#### configure

    public void configure(Properties configuration)
                   throws ConfigurationException

Method to configure a this CompilerConfiguration by using Properties. For a list of available properties look at {link `CompilerConfiguration(Properties)`.

Parameters:
  `configuration` - The properties to get flag values from.
Throws:
  `ConfigurationException`

#### getWarningLevel

    public int getWarningLevel()

Gets the currently configured warning level. See WarningMessage for level details.

#### setWarningLevel

    public void setWarningLevel(int level)

Sets the warning level. See WarningMessage for level details.

#### getSourceEncoding

    public String getSourceEncoding()

Gets the currently configured source file encoding.

#### setSourceEncoding

    public void setSourceEncoding(String encoding)

Sets the encoding to be used when reading source files.

#### getOutput

    public PrintWriter getOutput()

Gets the currently configured output writer.

#### setOutput

    public void setOutput(PrintWriter output)

Sets the output writer.

#### getTargetDirectory

    public File getTargetDirectory()

Gets the target directory for writing classes.

#### setTargetDirectory

    public void setTargetDirectory(String directory)

Sets the target directory.

#### setTargetDirectory

    public void setTargetDirectory(File directory)

Sets the target directory.

#### getClasspath

    public List<String> getClasspath()

Returns:
  the classpath

#### setClasspath

    public void setClasspath(String classpath)

Sets the classpath.

#### setClasspathList

    public void setClasspathList(List<String> l)

sets the classpath using a list of Strings

Parameters:
  `l` - list of strings containg the classpathparts

#### getVerbose

    public boolean getVerbose()

Returns true if verbose operation has been requested.

#### setVerbose

    public void setVerbose(boolean verbose)

Turns verbose operation on or off.

#### getDebug

    public boolean getDebug()

Returns true if debugging operation has been requested.

#### setDebug

    public void setDebug(boolean debug)

Turns debugging operation on or off.

#### getTolerance

    public int getTolerance()

Returns the requested error tolerance.

#### setTolerance

    public void setTolerance(int tolerance)

Sets the error tolerance, which is the number of non-fatal errors (per unit) that should be tolerated before compilation is aborted.

#### getScriptBaseClass

    public String getScriptBaseClass()

Gets the name of the base class for scripts. It must be a subclass of Script.

#### setScriptBaseClass

    public void setScriptBaseClass(String scriptBaseClass)

Sets the name of the base class for scripts. It must be a subclass of Script.

#### getPluginFactory

    public ParserPluginFactory getPluginFactory()

#### setPluginFactory

    public void setPluginFactory(ParserPluginFactory pluginFactory)

#### getDefaultScriptExtension

    public String getDefaultScriptExtension()

#### setScriptExtensions

    public void setScriptExtensions(Set<String> scriptExtensions)

#### getScriptExtensions

    public Set<String> getScriptExtensions()

#### setDefaultScriptExtension

    public void setDefaultScriptExtension(String defaultScriptExtension)

#### setRecompileGroovySource

    public void setRecompileGroovySource(boolean recompile)

#### getRecompileGroovySource

    public boolean getRecompileGroovySource()

#### setMinimumRecompilationInterval

    public void setMinimumRecompilationInterval(int time)

#### getMinimumRecompilationInterval

    public int getMinimumRecompilationInterval()

#### setTargetBytecode

    public void setTargetBytecode(String version)

Allow setting the bytecode compatibility. The parameter can take one of the values `1.5` or `1.4`. If wrong parameter then the value will default to VM determined version.

Parameters:
  `version` - the bytecode compatibility mode

#### getTargetBytecode

    public String getTargetBytecode()

Retrieves the compiler bytecode compatibility mode.

Returns:
  bytecode compatibility mode. Can be either `1.5` or `1.4`.

#### getJointCompilationOptions

    public Map<String,Object> getJointCompilationOptions()

Gets the joint compilation options for this configuration.

Returns:
  the options

#### setJointCompilationOptions

    public void setJointCompilationOptions(Map<String,Object> options)

Sets the joint compilation options for this configuration. Using null will disable joint compilation.

Parameters:
  `options` - the options