Package net.sf.jasperreports.groovy

Class JRGroovyCompiler

java.lang.Object

net.sf.jasperreports.engine.design.JRAbstractCompiler

net.sf.jasperreports.engine.design.JRAbstractJavaCompiler

net.sf.jasperreports.groovy.JRGroovyCompiler

All Implemented Interfaces:

JRCompiler

public class JRGroovyCompiler
extends JRAbstractJavaCompiler

Calculator compiler that uses groovy to compile expressions.

Author:

Teodor Danciu (teodord@users.sourceforge.net), Peter Severin (peter_p_s@users.sourceforge.net)

Field Summary

Fields

Modifier and Type	Field	Description
static final String	EXCEPTION_MESSAGE_KEY_COMPILING_EXPRESSIONS_CLASS_FILE
static final String	EXCEPTION_MESSAGE_KEY_REPORT_NOT_COMPILED_FOR_CLASS_FILTERING
static final String	EXCEPTION_MESSAGE_KEY_TOO_FEW_CLASSES_GENERATED
static final String	EXCEPTION_MESSAGE_KEY_TOO_MANY_CLASSES_GENERATED

Fields inherited from class net.sf.jasperreports.engine.design.JRAbstractJavaCompiler

EXCEPTION_MESSAGE_KEY_EXPECTED_JAVA_LANGUAGE, EXCEPTION_MESSAGE_KEY_EXPRESSION_CLASS_NOT_LOADED, PROPERTY_EVALUATOR_CLASS_REFERENCE_FIX_ENABLED

Fields inherited from class net.sf.jasperreports.engine.design.JRAbstractCompiler

EXCEPTION_MESSAGE_KEY_CROSSTAB_ID_NOT_FOUND, EXCEPTION_MESSAGE_KEY_DESIGN_COMPILE_ERROR, EXCEPTION_MESSAGE_KEY_LANGUAGE_NOT_SUPPORTED, EXCEPTION_MESSAGE_KEY_REPORT_EXPRESSIONS_COMPILE_ERROR, EXCEPTION_MESSAGE_KEY_TEMP_DIR_NOT_FOUND, jasperReportsContext, reportClassFilter

Fields inherited from interface net.sf.jasperreports.engine.design.JRCompiler

COMPILER_CLASS, COMPILER_CLASSPATH, COMPILER_KEEP_JAVA_FILE, COMPILER_PREFIX, COMPILER_TEMP_DIR

Constructor Summary

Constructors

Constructor	Description
JRGroovyCompiler(JasperReportsContext jasperReportsContext)

Method Summary

Modifier and Type	Method	Description
protected void	checkLanguage(String language)	Checks that the report language is supported by the compiler.
protected String	compileUnits(JRCompilationUnit[] units, String classpath, File tempDirFile)	Compiles several expression evaluator units.
protected DirectExpressionValueFilter	directValueFilter()
protected JRCompilationSourceCode	generateSourceCode(JRSourceCompileTask sourceTask)	Generates expression evaluator code.
protected String	getSourceFileName(String unitName)	Returns the name of the source file where generated source code for an unit is saved.
protected Class<?>	loadClass(String className, byte[] compileData)
protected Class<?>	loadClass(String className, CompiledClasses classes)
protected JREvaluator	loadEvaluator(Serializable compileData, String className)	Creates an expression evaluator instance from data saved when the report was compiled.

Methods inherited from class net.sf.jasperreports.engine.design.JRAbstractJavaCompiler

classCacheKey, getClassFromCache, putClassInCache, toCompiledClasses

Methods inherited from class net.sf.jasperreports.engine.design.JRAbstractCompiler

compileReport, createCompileData, createEvaluator, effectiveDirectValueFilter, getCompilerClass, getSourceFile, getUnitName, getUnitName, getUnitName, getUnitName, getUnitName, loadEvaluator, loadEvaluator, loadEvaluator

Methods inherited from class java.lang.Object

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

Field Details

EXCEPTION_MESSAGE_KEY_COMPILING_EXPRESSIONS_CLASS_FILE

public static final String EXCEPTION_MESSAGE_KEY_COMPILING_EXPRESSIONS_CLASS_FILE

See Also:

• Constant Field Values

EXCEPTION_MESSAGE_KEY_TOO_FEW_CLASSES_GENERATED

public static final String EXCEPTION_MESSAGE_KEY_TOO_FEW_CLASSES_GENERATED

See Also:

• Constant Field Values

EXCEPTION_MESSAGE_KEY_TOO_MANY_CLASSES_GENERATED

public static final String EXCEPTION_MESSAGE_KEY_TOO_MANY_CLASSES_GENERATED

See Also:

• Constant Field Values

EXCEPTION_MESSAGE_KEY_REPORT_NOT_COMPILED_FOR_CLASS_FILTERING

public static final String EXCEPTION_MESSAGE_KEY_REPORT_NOT_COMPILED_FOR_CLASS_FILTERING

See Also:

• Constant Field Values

Constructor Details

JRGroovyCompiler

public JRGroovyCompiler(JasperReportsContext jasperReportsContext)

Method Details

directValueFilter

protected DirectExpressionValueFilter directValueFilter()

Overrides:

directValueFilter in class JRAbstractJavaCompiler

compileUnits

protected String compileUnits(JRCompilationUnit[] units,
 String classpath,
 File tempDirFile)
                       throws JRException

Description copied from class: JRAbstractCompiler

Compiles several expression evaluator units.

The result of the compilation should be set by calling setCompileData on all compile units.

Specified by:

compileUnits in class JRAbstractCompiler

Parameters:

units - the compilation units

classpath - the compilation classpath

tempDirFile - temporary directory

Returns:

a string containing compilation errors, or null if the compilation was successfull

Throws:

JRException

checkLanguage

protected void checkLanguage(String language)
                      throws JRException

Description copied from class: JRAbstractCompiler

Checks that the report language is supported by the compiler.

Specified by:

checkLanguage in class JRAbstractCompiler

Parameters:

language - the report language

Throws:

JRException

generateSourceCode

protected JRCompilationSourceCode generateSourceCode(JRSourceCompileTask sourceTask)
                                              throws JRException

Description copied from class: JRAbstractCompiler

Generates expression evaluator code.

Specified by:

generateSourceCode in class JRAbstractCompiler

Parameters:

sourceTask - the source code generation information

Returns:

generated expression evaluator code

Throws:

JRException

getSourceFileName

protected String getSourceFileName(String unitName)

Description copied from class: JRAbstractCompiler

Returns the name of the source file where generated source code for an unit is saved.

If the compiler needs source files for compilation or COMPILER_KEEP_JAVA_FILE is set, the generated source will be saved in a file having the name returned by this method.

Specified by:

getSourceFileName in class JRAbstractCompiler

Parameters:

unitName - the unit name

Returns:

the source file name

loadClass

protected Class<?> loadClass(String className,
 byte[] compileData)

Overrides:

loadClass in class JRAbstractJavaCompiler

loadClass

protected Class<?> loadClass(String className,
 CompiledClasses classes)

Overrides:

loadClass in class JRAbstractJavaCompiler

loadEvaluator

protected JREvaluator loadEvaluator(Serializable compileData,
 String className)
                             throws JRException

Description copied from class: JRAbstractCompiler

Creates an expression evaluator instance from data saved when the report was compiled.

Overrides:

loadEvaluator in class JRAbstractJavaCompiler

Parameters:

compileData - the data saved when the report was compiled

className - the evaluator unit name

Returns:

an expression evaluator instance

Throws:

JRException