in lightning-maven-plugin/src/main/java/org/apache/directmemory/lightning/maven/AbstractCompilerMojo.java [316:661]
public void execute()
throws MojoExecutionException, CompilationFailureException
{
// ----------------------------------------------------------------------
// Look up the compiler. This is done before other code than can
// cause the mojo to return before the lookup is done possibly resulting
// in misconfigured POMs still building.
// ----------------------------------------------------------------------
Compiler compiler;
getLog().debug( "Using compiler '" + compilerId + "'." );
try
{
compiler = compilerManager.getCompiler( compilerId );
}
catch ( NoSuchCompilerException e )
{
throw new MojoExecutionException( "No such compiler '" + e.getCompilerId() + "'.", e );
}
// -----------toolchains start here ----------------------------------
// use the compilerId as identifier for toolchains as well.
Toolchain tc = getToolchain();
if ( tc != null )
{
getLog().info( "Toolchain in compiler-plugin: " + tc );
if ( executable != null )
{
getLog().warn( "Toolchains are ignored, 'executable' parameter is set to " + executable );
}
else
{
fork = true;
// TODO somehow shaky dependency between compilerId and tool
// executable.
executable = tc.findTool( compilerId );
}
}
// ----------------------------------------------------------------------
//
// ----------------------------------------------------------------------
List<String> compileSourceRoots = removeEmptyCompileSourceRoots( getCompileSourceRoots() );
if ( compileSourceRoots.isEmpty() )
{
getLog().info( "No sources to compile" );
return;
}
if ( getLog().isDebugEnabled() )
{
getLog().debug( "Source directories: " + compileSourceRoots.toString().replace( ',', '\n' ) );
getLog().debug( "Classpath: " + getClasspathElements().toString().replace( ',', '\n' ) );
getLog().debug( "Output directory: " + getOutputDirectory() );
}
// ----------------------------------------------------------------------
// Create the compiler configuration
// ----------------------------------------------------------------------
CompilerConfiguration compilerConfiguration = new CompilerConfiguration();
compilerConfiguration.setOutputLocation( getOutputDirectory().getAbsolutePath() );
compilerConfiguration.setClasspathEntries( getClasspathElements() );
compilerConfiguration.setSourceLocations( compileSourceRoots );
compilerConfiguration.setOptimize( optimize );
compilerConfiguration.setDebug( debug );
if ( debug && StringUtils.isNotEmpty( debuglevel ) )
{
String[] split = StringUtils.split( debuglevel, "," );
for ( int i = 0; i < split.length; i++ )
{
if ( !( split[i].equalsIgnoreCase( "none" ) || split[i].equalsIgnoreCase( "lines" )
|| split[i].equalsIgnoreCase( "vars" ) || split[i].equalsIgnoreCase( "source" ) ) )
{
throw new IllegalArgumentException( "The specified debug level: '" + split[i]
+ "' is unsupported. " + "Legal values are 'none', 'lines', 'vars', and 'source'." );
}
}
compilerConfiguration.setDebugLevel( debuglevel );
}
compilerConfiguration.setVerbose( verbose );
compilerConfiguration.setShowWarnings( showWarnings );
compilerConfiguration.setShowDeprecation( showDeprecation );
compilerConfiguration.setSourceVersion( getSource() );
compilerConfiguration.setTargetVersion( getTarget() );
compilerConfiguration.setProc( proc );
compilerConfiguration.setGeneratedSourcesDirectory( getGeneratedSourcesDirectory() );
compilerConfiguration.setAnnotationProcessors( annotationProcessors );
compilerConfiguration.setSourceEncoding( encoding );
Map<String, String> effectiveCompilerArguments = getCompilerArguments();
String effectiveCompilerArgument = getCompilerArgument();
if ( ( effectiveCompilerArguments != null ) || ( effectiveCompilerArgument != null ) )
{
LinkedHashMap<String, String> cplrArgsCopy = new LinkedHashMap<String, String>();
if ( effectiveCompilerArguments != null )
{
for ( Map.Entry<String, String> me : effectiveCompilerArguments.entrySet() )
{
String key = me.getKey();
String value = me.getValue();
if ( !key.startsWith( "-" ) )
{
key = "-" + key;
}
cplrArgsCopy.put( key, value );
}
}
if ( !StringUtils.isEmpty( effectiveCompilerArgument ) )
{
cplrArgsCopy.put( effectiveCompilerArgument, null );
}
compilerConfiguration.setCustomCompilerArguments( cplrArgsCopy );
}
compilerConfiguration.setFork( fork );
if ( fork )
{
if ( !StringUtils.isEmpty( meminitial ) )
{
String value = getMemoryValue( meminitial );
if ( value != null )
{
compilerConfiguration.setMeminitial( value );
}
else
{
getLog().info( "Invalid value for meminitial '" + meminitial + "'. Ignoring this option." );
}
}
if ( !StringUtils.isEmpty( maxmem ) )
{
String value = getMemoryValue( maxmem );
if ( value != null )
{
compilerConfiguration.setMaxmem( value );
}
else
{
getLog().info( "Invalid value for maxmem '" + maxmem + "'. Ignoring this option." );
}
}
}
compilerConfiguration.setExecutable( executable );
compilerConfiguration.setWorkingDirectory( basedir );
compilerConfiguration.setCompilerVersion( compilerVersion );
compilerConfiguration.setBuildDirectory( buildDirectory );
compilerConfiguration.setOutputFileName( outputFileName );
// TODO: have an option to always compile (without need to clean)
Set<File> staleSources;
boolean canUpdateTarget;
try
{
staleSources =
computeStaleSources( compilerConfiguration, compiler, getSourceInclusionScanner( staleMillis ) );
canUpdateTarget = compiler.canUpdateTarget( compilerConfiguration );
if ( compiler.getCompilerOutputStyle().equals( CompilerOutputStyle.ONE_OUTPUT_FILE_FOR_ALL_INPUT_FILES )
&& !canUpdateTarget )
{
getLog().info( "RESCANNING!" );
// TODO: This second scan for source files is sub-optimal
String inputFileEnding = compiler.getInputFileEnding( compilerConfiguration );
Set<File> sources =
computeStaleSources( compilerConfiguration, compiler, getSourceInclusionScanner( inputFileEnding ) );
compilerConfiguration.setSourceFiles( sources );
}
else
{
compilerConfiguration.setSourceFiles( staleSources );
}
}
catch ( CompilerException e )
{
throw new MojoExecutionException( "Error while computing stale sources.", e );
}
if ( staleSources.isEmpty() )
{
getLog().info( "Nothing to compile - all classes are up to date" );
return;
}
// ----------------------------------------------------------------------
// Dump configuration
// ----------------------------------------------------------------------
if ( getLog().isDebugEnabled() )
{
getLog().debug( "Classpath:" );
for ( String s : getClasspathElements() )
{
getLog().debug( " " + s );
}
getLog().debug( "Source roots:" );
for ( String root : getCompileSourceRoots() )
{
getLog().debug( " " + root );
}
try
{
if ( fork )
{
if ( compilerConfiguration.getExecutable() != null )
{
getLog().debug( "Excutable: " );
getLog().debug( " " + compilerConfiguration.getExecutable() );
}
}
String[] cl = compiler.createCommandLine( compilerConfiguration );
if ( cl != null && cl.length > 0 )
{
StringBuffer sb = new StringBuffer();
sb.append( cl[0] );
for ( int i = 1; i < cl.length; i++ )
{
sb.append( " " );
sb.append( cl[i] );
}
getLog().debug( "Command line options:" );
getLog().debug( sb );
}
}
catch ( CompilerException ce )
{
getLog().debug( ce );
}
}
// ----------------------------------------------------------------------
// Compile!
// ----------------------------------------------------------------------
if ( StringUtils.isEmpty( compilerConfiguration.getSourceEncoding() ) )
{
getLog().warn( "File encoding has not been set, using platform encoding " + ReaderFactory.FILE_ENCODING
+ ", i.e. build is platform dependent!" );
}
List<CompilerError> messages;
try
{
messages = compiler.compile( compilerConfiguration );
}
catch ( Exception e )
{
// TODO: don't catch Exception
throw new MojoExecutionException( "Fatal error compiling", e );
}
List<CompilerError> warnings = new ArrayList<CompilerError>();
List<CompilerError> errors = new ArrayList<CompilerError>();
if ( messages != null )
{
for ( CompilerError message : messages )
{
if ( message.isError() )
{
errors.add( message );
}
else
{
warnings.add( message );
}
}
}
if ( failOnError && !errors.isEmpty() )
{
if ( !warnings.isEmpty() )
{
getLog().info( "-------------------------------------------------------------" );
getLog().warn( "COMPILATION WARNING : " );
getLog().info( "-------------------------------------------------------------" );
for ( CompilerError warning : warnings )
{
getLog().warn( warning.toString() );
}
getLog().info( warnings.size() + ( ( warnings.size() > 1 ) ? " warnings " : " warning" ) );
getLog().info( "-------------------------------------------------------------" );
}
getLog().info( "-------------------------------------------------------------" );
getLog().error( "COMPILATION ERROR : " );
getLog().info( "-------------------------------------------------------------" );
for ( CompilerError error : errors )
{
getLog().error( error.toString() );
}
getLog().info( errors.size() + ( ( errors.size() > 1 ) ? " errors " : " error" ) );
getLog().info( "-------------------------------------------------------------" );
throw new CompilationFailureException( errors );
}
else
{
for ( CompilerError message : messages )
{
getLog().warn( message.toString() );
}
}
}