Package org.apache.drill.exec.compile

Class ClassCompilerSelector

java.lang.Object

org.apache.drill.exec.compile.ClassCompilerSelector

public class ClassCompilerSelector
extends Object

Selects between the two supported Java compilers: Janino and the build-in Java compiler.

Session Options

exec.java_compiler

The compiler to use. Valid options are defined in the ClassCompilerSelector.CompilerPolicy enum.

exec.java_compiler_debug

If debug logging is enabled, then AbstractClassCompiler writes the generated Java code to the log file prior to compilation. This option adds line numbers to the logged code.

exec.java_compiler_janino_maxsize

The maximum size of code that the Janino compiler can handle. Larger code is handled by the JDK compiler. Defaults to 256K.

Configuration Options

Configuration options are used when the above session options are unset.

drill.exec.compile.compiler

Default for exec.java_compiler

drill.exec.compile.debug

Default for exec.java_compiler_debug

drill.exec.compile.janino_maxsize

Default for exec.java_compiler_janino_maxsize

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	ClassCompilerSelector.CompilerPolicy

Field Summary

Fields

Modifier and Type	Field	Description
static final String	JAVA_COMPILER_CONFIG
static final OptionValidator	JAVA_COMPILER_DEBUG
static final String	JAVA_COMPILER_DEBUG_CONFIG
static final String	JAVA_COMPILER_DEBUG_OPTION
static final OptionValidator	JAVA_COMPILER_JANINO_MAXSIZE
static final String	JAVA_COMPILER_JANINO_MAXSIZE_CONFIG
static final String	JAVA_COMPILER_JANINO_MAXSIZE_OPTION
static final String	JAVA_COMPILER_OPTION
static final TypeValidators.StringValidator	JAVA_COMPILER_VALIDATOR

Constructor Summary

Constructors

Constructor	Description
ClassCompilerSelector(ClassLoader classLoader, DrillConfig config, OptionSet sessionOptions)

Method Summary

Modifier and Type	Method	Description
Map<String,byte[]>	compile(ClassTransformer.ClassNames className, String sourceCode)

Methods inherited from class java.lang.Object

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

Field Details

JAVA_COMPILER_JANINO_MAXSIZE_CONFIG

public static final String JAVA_COMPILER_JANINO_MAXSIZE_CONFIG

See Also:

• Constant Field Values

JAVA_COMPILER_DEBUG_CONFIG

public static final String JAVA_COMPILER_DEBUG_CONFIG

See Also:

• Constant Field Values

JAVA_COMPILER_CONFIG

public static final String JAVA_COMPILER_CONFIG

See Also:

• Constant Field Values

JAVA_COMPILER_OPTION

public static final String JAVA_COMPILER_OPTION

See Also:

• Constant Field Values

JAVA_COMPILER_JANINO_MAXSIZE_OPTION

public static final String JAVA_COMPILER_JANINO_MAXSIZE_OPTION

See Also:

• Constant Field Values

JAVA_COMPILER_JANINO_MAXSIZE

public static final OptionValidator JAVA_COMPILER_JANINO_MAXSIZE

JAVA_COMPILER_DEBUG_OPTION

public static final String JAVA_COMPILER_DEBUG_OPTION

See Also:

• Constant Field Values

JAVA_COMPILER_DEBUG

public static final OptionValidator JAVA_COMPILER_DEBUG

JAVA_COMPILER_VALIDATOR

public static final TypeValidators.StringValidator JAVA_COMPILER_VALIDATOR

Constructor Details

ClassCompilerSelector

public ClassCompilerSelector(ClassLoader classLoader,
 DrillConfig config,
 OptionSet sessionOptions)

Method Details

compile

public Map<String,byte[]> compile(ClassTransformer.ClassNames className,
 String sourceCode)
                           throws org.codehaus.commons.compiler.CompileException,
ClassNotFoundException,
ClassTransformationException,
IOException

Throws:

org.codehaus.commons.compiler.CompileException

ClassNotFoundException

ClassTransformationException

IOException