Package org.apache.jasper.compiler
Class JDTJavaCompiler
- java.lang.Object
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- org.apache.jasper.compiler.JDTJavaCompiler
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- All Implemented Interfaces:
JavaCompiler
public class JDTJavaCompiler extends java.lang.Object implements JavaCompiler
JDT class compiler. This compiler will load source dependencies from the context classloader, reducing dramatically disk access during the compilation process.
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Field Summary
Fields Modifier and Type Field Description private JspCompilationContext
ctxt
private ErrorDispatcher
errDispatcher
private static java.lang.reflect.Method
GET_PROBLEM_METH
private java.lang.String
javaFileName
private java.util.logging.Logger
log
private java.util.Map
settings
private static boolean
USE_INTROSPECTION_TO_INVOKE_GET_PROBLEM
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Constructor Summary
Constructors Constructor Description JDTJavaCompiler()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description JavacErrorDetail[]
compile(java.lang.String targetClassName, Node.Nodes pageNodes)
Start Java compilationvoid
doJavaFile(boolean keep)
Remove/save the generated Java File from/to disklong
getClassLastModified()
Return the time the class file was generated.java.io.Writer
getJavaWriter(java.lang.String javaFileName, java.lang.String javaEncoding)
Get a Writer for the Java file.void
init(JspCompilationContext ctxt, ErrorDispatcher errDispatcher, boolean suppressLogging)
Initializationsvoid
release()
Release resouces used in the current compilationprivate static org.eclipse.jdt.core.compiler.IProblem[]
safeGetProblems(org.eclipse.jdt.internal.compiler.CompilationResult result)
Invoke CompilationResult#getProblems safely so that it works with 3.1.1 and more recent versions of the eclipse java compiler.void
saveClassFile(java.lang.String className, java.lang.String classFileName)
Save the generated class file to disk, if not already done.void
setClassPath(java.util.List<java.io.File> cpath)
Java Compiler options.void
setDebug(boolean debug)
void
setExtdirs(java.lang.String exts)
void
setSourceVM(java.lang.String sourceVM)
void
setTargetVM(java.lang.String targetVM)
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Field Detail
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settings
private final java.util.Map settings
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ctxt
private JspCompilationContext ctxt
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errDispatcher
private ErrorDispatcher errDispatcher
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log
private java.util.logging.Logger log
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javaFileName
private java.lang.String javaFileName
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USE_INTROSPECTION_TO_INVOKE_GET_PROBLEM
private static boolean USE_INTROSPECTION_TO_INVOKE_GET_PROBLEM
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GET_PROBLEM_METH
private static java.lang.reflect.Method GET_PROBLEM_METH
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Method Detail
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init
public void init(JspCompilationContext ctxt, ErrorDispatcher errDispatcher, boolean suppressLogging)
Description copied from interface:JavaCompiler
Initializations- Specified by:
init
in interfaceJavaCompiler
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release
public void release()
Description copied from interface:JavaCompiler
Release resouces used in the current compilation- Specified by:
release
in interfaceJavaCompiler
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setExtdirs
public void setExtdirs(java.lang.String exts)
- Specified by:
setExtdirs
in interfaceJavaCompiler
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setClassPath
public void setClassPath(java.util.List<java.io.File> cpath)
Description copied from interface:JavaCompiler
Java Compiler options.- Specified by:
setClassPath
in interfaceJavaCompiler
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getClassLastModified
public long getClassLastModified()
Description copied from interface:JavaCompiler
Return the time the class file was generated.- Specified by:
getClassLastModified
in interfaceJavaCompiler
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getJavaWriter
public java.io.Writer getJavaWriter(java.lang.String javaFileName, java.lang.String javaEncoding) throws JasperException
Description copied from interface:JavaCompiler
Get a Writer for the Java file. The writer is used by JSP compiler. This method allows the Java compiler control where the Java file should be generated so it knows how to handle the input for java compilation accordingly.- Specified by:
getJavaWriter
in interfaceJavaCompiler
- Throws:
JasperException
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setDebug
public void setDebug(boolean debug)
- Specified by:
setDebug
in interfaceJavaCompiler
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setSourceVM
public void setSourceVM(java.lang.String sourceVM)
- Specified by:
setSourceVM
in interfaceJavaCompiler
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setTargetVM
public void setTargetVM(java.lang.String targetVM)
- Specified by:
setTargetVM
in interfaceJavaCompiler
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saveClassFile
public void saveClassFile(java.lang.String className, java.lang.String classFileName)
Description copied from interface:JavaCompiler
Save the generated class file to disk, if not already done.- Specified by:
saveClassFile
in interfaceJavaCompiler
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doJavaFile
public void doJavaFile(boolean keep)
Description copied from interface:JavaCompiler
Remove/save the generated Java File from/to disk- Specified by:
doJavaFile
in interfaceJavaCompiler
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compile
public JavacErrorDetail[] compile(java.lang.String targetClassName, Node.Nodes pageNodes) throws JasperException
Description copied from interface:JavaCompiler
Start Java compilation- Specified by:
compile
in interfaceJavaCompiler
- Parameters:
targetClassName
- Name of the class under compilation- Throws:
JasperException
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safeGetProblems
private static final org.eclipse.jdt.core.compiler.IProblem[] safeGetProblems(org.eclipse.jdt.internal.compiler.CompilationResult result)
Invoke CompilationResult#getProblems safely so that it works with 3.1.1 and more recent versions of the eclipse java compiler. See https://jsp.dev.java.net/issues/show_bug.cgi?id=13- Parameters:
result
- The compilation result.- Returns:
- The same object than CompilationResult#getProblems
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