Class JavacCompiler
- java.lang.Object
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- org.codehaus.plexus.logging.AbstractLogEnabled
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- org.codehaus.plexus.compiler.AbstractCompiler
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- org.codehaus.plexus.compiler.javac.JavacCompiler
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- All Implemented Interfaces:
Compiler
,org.codehaus.plexus.logging.LogEnabled
public class JavacCompiler extends AbstractCompiler
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Field Summary
Fields Modifier and Type Field Description private static java.lang.Class<?>
JAVAC_CLASS
private static java.lang.String
JAVAC_CLASSNAME
private java.util.List<java.lang.Class<?>>
javaccClasses
private static java.lang.Object
LOCK
private static java.lang.String[]
MISC_PREFIXES
private static java.lang.String[]
NOTE_PREFIXES
private static java.lang.String[]
WARNING_PREFIXES
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Fields inherited from class org.codehaus.plexus.compiler.AbstractCompiler
EOL, PS
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Constructor Summary
Constructors Constructor Description JavacCompiler()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static java.lang.String[]
buildCompilerArguments(CompilerConfiguration config, java.lang.String[] sourceFiles)
(package private) CompilerResult
compileInProcess(java.lang.String[] args, CompilerConfiguration config)
Compile the java sources in the current JVM, without calling an external executable, usingcom.sun.tools.javac.Main
classprivate static CompilerResult
compileInProcess0(java.lang.Class<?> javacClass, java.lang.String[] args)
Helper method for compileInProcess()protected CompilerResult
compileInProcessWithProperClassloader(java.lang.Class<?> javacClass, java.lang.String[] args)
protected CompilerResult
compileOutOfProcess(CompilerConfiguration config, java.lang.String executable, java.lang.String[] args)
Compile the java sources in a external process, calling an external executable, like javac.java.lang.String[]
createCommandLine(CompilerConfiguration config)
Create the command line that would be executed using this configuration.private java.io.File
createFileWithArguments(java.lang.String[] args, java.lang.String outputDirectory)
put args into a temp file to be referenced using the @ option in javac command lineprotected java.lang.Class<?>
createJavacClass()
Helper method for create Javac classprivate java.lang.Class<?>
getJavacClass(CompilerConfiguration compilerConfiguration)
Find the main class of JavaC.private static java.lang.String
getJavacExecutable()
Get the path of the javac tool executable: try to find it depending the OS or thejava.home
system property or theJAVA_HOME
environment variable.private static java.lang.String
getWarnPrefix(java.lang.String msg)
protected static boolean
isJava16()
private static boolean
isMisc(java.lang.String line)
private static boolean
isNote(java.lang.String line)
private static boolean
isPreJava14(CompilerConfiguration config)
Determine if the compiler is a version prior to 1.4.private static boolean
isPreJava16(CompilerConfiguration config)
Determine if the compiler is a version prior to 1.6.private static boolean
isPreJava18(CompilerConfiguration config)
(package private) static CompilerMessage
parseModernError(int exitCode, java.lang.String error)
Construct a CompilerMessage object from a line of the compiler output(package private) static java.util.List<CompilerMessage>
parseModernStream(int exitCode, java.io.BufferedReader input)
Parse the output from the compiler into a list of CompilerMessage objectsCompilerResult
performCompile(CompilerConfiguration config)
Performs the compilation of the project.private void
releaseJavaccClass(java.lang.Class<?> javaccClass, CompilerConfiguration compilerConfiguration)
private static boolean
startsWithPrefix(java.lang.String line, java.lang.String[] prefixes)
private static boolean
suppressEncoding(CompilerConfiguration config)
private static boolean
suppressSource(CompilerConfiguration config)
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Methods inherited from class org.codehaus.plexus.compiler.AbstractCompiler
canUpdateTarget, compile, getCompilerOutputStyle, getInputFileEnding, getOutputFile, getOutputFileEnding, getPathString, getSourceFiles, getSourceFilesForSourceRoot, makeClassName, toStringArray
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Field Detail
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WARNING_PREFIXES
private static final java.lang.String[] WARNING_PREFIXES
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NOTE_PREFIXES
private static final java.lang.String[] NOTE_PREFIXES
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MISC_PREFIXES
private static final java.lang.String[] MISC_PREFIXES
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LOCK
private static final java.lang.Object LOCK
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JAVAC_CLASSNAME
private static final java.lang.String JAVAC_CLASSNAME
- See Also:
- Constant Field Values
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JAVAC_CLASS
private static volatile java.lang.Class<?> JAVAC_CLASS
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javaccClasses
private java.util.List<java.lang.Class<?>> javaccClasses
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Method Detail
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performCompile
public CompilerResult performCompile(CompilerConfiguration config) throws CompilerException
Description copied from interface:Compiler
Performs the compilation of the project. Clients must implement this method.- Specified by:
performCompile
in interfaceCompiler
- Overrides:
performCompile
in classAbstractCompiler
- Parameters:
config
- the configuration description of the compilation to perform- Returns:
- the result of the compilation returned by the language processor
- Throws:
CompilerException
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isJava16
protected static boolean isJava16()
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createCommandLine
public java.lang.String[] createCommandLine(CompilerConfiguration config) throws CompilerException
Description copied from interface:Compiler
Create the command line that would be executed using this configuration. If this particular compiler has no concept of a command line then returns null.- Parameters:
config
- the CompilerConfiguration describing the compilation- Returns:
- an array of Strings that make up the command line, or null if this compiler has no concept of command line
- Throws:
CompilerException
- if there was an error generating the command line
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buildCompilerArguments
public static java.lang.String[] buildCompilerArguments(CompilerConfiguration config, java.lang.String[] sourceFiles)
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isPreJava14
private static boolean isPreJava14(CompilerConfiguration config)
Determine if the compiler is a version prior to 1.4. This is needed as 1.3 and earlier did not support -source or -encoding parameters- Parameters:
config
- The compiler configuration to test.- Returns:
- true if the compiler configuration represents a Java 1.4 compiler or later, false otherwise
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isPreJava16
private static boolean isPreJava16(CompilerConfiguration config)
Determine if the compiler is a version prior to 1.6. This is needed for annotation processing parameters.- Parameters:
config
- The compiler configuration to test.- Returns:
- true if the compiler configuration represents a Java 1.6 compiler or later, false otherwise
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isPreJava18
private static boolean isPreJava18(CompilerConfiguration config)
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suppressSource
private static boolean suppressSource(CompilerConfiguration config)
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suppressEncoding
private static boolean suppressEncoding(CompilerConfiguration config)
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compileOutOfProcess
protected CompilerResult compileOutOfProcess(CompilerConfiguration config, java.lang.String executable, java.lang.String[] args) throws CompilerException
Compile the java sources in a external process, calling an external executable, like javac.- Parameters:
config
- compiler configurationexecutable
- name of the executable to launchargs
- arguments for the executable launched- Returns:
- a CompilerResult object encapsulating the result of the compilation and any compiler messages
- Throws:
CompilerException
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compileInProcess
CompilerResult compileInProcess(java.lang.String[] args, CompilerConfiguration config) throws CompilerException
Compile the java sources in the current JVM, without calling an external executable, usingcom.sun.tools.javac.Main
class- Parameters:
args
- arguments for the compiler as they would be used in the command line javacconfig
- compiler configuration- Returns:
- a CompilerResult object encapsulating the result of the compilation and any compiler messages
- Throws:
CompilerException
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compileInProcessWithProperClassloader
protected CompilerResult compileInProcessWithProperClassloader(java.lang.Class<?> javacClass, java.lang.String[] args) throws CompilerException
- Throws:
CompilerException
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compileInProcess0
private static CompilerResult compileInProcess0(java.lang.Class<?> javacClass, java.lang.String[] args) throws CompilerException
Helper method for compileInProcess()- Throws:
CompilerException
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parseModernStream
static java.util.List<CompilerMessage> parseModernStream(int exitCode, java.io.BufferedReader input) throws java.io.IOException
Parse the output from the compiler into a list of CompilerMessage objects- Parameters:
exitCode
- The exit code of javac.input
- The output of the compiler- Returns:
- List of CompilerMessage objects
- Throws:
java.io.IOException
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isMisc
private static boolean isMisc(java.lang.String line)
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isNote
private static boolean isNote(java.lang.String line)
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startsWithPrefix
private static boolean startsWithPrefix(java.lang.String line, java.lang.String[] prefixes)
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parseModernError
static CompilerMessage parseModernError(int exitCode, java.lang.String error)
Construct a CompilerMessage object from a line of the compiler output- Parameters:
exitCode
- The exit code from javac.error
- output line from the compiler- Returns:
- the CompilerMessage object
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getWarnPrefix
private static java.lang.String getWarnPrefix(java.lang.String msg)
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createFileWithArguments
private java.io.File createFileWithArguments(java.lang.String[] args, java.lang.String outputDirectory) throws java.io.IOException
put args into a temp file to be referenced using the @ option in javac command line- Parameters:
args
-- Returns:
- the temporary file wth the arguments
- Throws:
java.io.IOException
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getJavacExecutable
private static java.lang.String getJavacExecutable() throws java.io.IOException
Get the path of the javac tool executable: try to find it depending the OS or thejava.home
system property or theJAVA_HOME
environment variable.- Returns:
- the path of the Javadoc tool
- Throws:
java.io.IOException
- if not found
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releaseJavaccClass
private void releaseJavaccClass(java.lang.Class<?> javaccClass, CompilerConfiguration compilerConfiguration)
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getJavacClass
private java.lang.Class<?> getJavacClass(CompilerConfiguration compilerConfiguration) throws CompilerException
Find the main class of JavaC. Return the same class for subsequent calls.- Returns:
- the non-null class.
- Throws:
CompilerException
- if the class has not been found.
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createJavacClass
protected java.lang.Class<?> createJavacClass() throws CompilerException
Helper method for create Javac class- Throws:
CompilerException
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