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JNI binding generator (runtime)
package com.jogamp.gluegen.ant;
/*
* Copyright (C) 2003 Rob Grzywinski ([email protected])
* Copyright (c) 2003-2005 Sun Microsystems, Inc. All Rights Reserved.
* Copyright (c) 2010 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
* ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
* DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed or intended for use
* in the design, construction, operation or maintenance of any nuclear
* facility.
*/
import java.io.IOException;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.DirectoryScanner;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.taskdefs.Execute;
import org.apache.tools.ant.taskdefs.LogStreamHandler;
import org.apache.tools.ant.types.AbstractFileSet;
import org.apache.tools.ant.types.CommandlineJava;
import org.apache.tools.ant.types.DirSet;
import org.apache.tools.ant.types.FileSet;
import org.apache.tools.ant.types.Path;
import org.apache.tools.ant.types.PatternSet;
import org.apache.tools.ant.types.Reference;
import org.apache.tools.ant.util.JavaEnvUtils;
/**
* An ANT {@link org.apache.tools.ant.Task}
* for using {@link com.jogamp.gluegen.GlueGen}.
*
* Usage:
*
<gluegen src="[source C file]"
outputrootdir="[optional output root dir]"
includes="[optional directory pattern of include files to include]"
excludes="[optional directory pattern of include files to exclude]"
includeRefid="[optional FileSet or DirSet for include files]"
literalInclude="[optional comma separated list of literal include directories, avoiding limitations of FileSet / DirSet issues]"
emitter="[emitter class name]"
config="[configuration file]"
dumpCPP="[optional boolean]"
debug="[optional boolean]" />
*
*
* @author Rob Grzywinski [email protected]
*/
// FIXME: blow out javadoc
// NOTE: this has not been exhaustively tested
public class GlueGenTask extends Task
{
/**
* The {@link com.jogamp.gluegen.GlueGen} classname.
*/
private static final String GLUE_GEN = "com.jogamp.gluegen.GlueGen";
// =========================================================================
/**
* The {@link org.apache.tools.ant.types.CommandlineJava} that is used
* to execute {@link com.jogamp.gluegen.GlueGen}.
*/
private final CommandlineJava gluegenCommandline;
// =========================================================================
/**
* The optional debug flag.
*/
private boolean debug=false;
/**
* The optional dumpCPP flag.
*/
private boolean dumpCPP=false;
/**
* The optional output root dir.
*/
private String outputRootDir;
/**
* The name of the emitter class.
*/
private String emitter;
/**
* The configuration file name.
*/
private String configuration;
/**
* The name of the source C file that is to be parsed.
*/
private String sourceFile;
/**
* The {@link org.apache.tools.ant.types.FileSet} of includes.
*/
private final FileSet includeSet = new FileSet();
/**
* Because a {@link org.apache.tools.ant.types.FileSet} will include
* everything in its base directory if it is left untouched, the includeSet
* must only be added to the set of includes if it has been explicitly
* set.
*/
private boolean usedIncludeSet = false; // by default it is not used
/**
* The set of include sets. This allows includes to be added in multiple
* fashions.
*/
// FIXME: rename to listXXXX
private final List setOfIncludeSets = new LinkedList();
/**
* Comma separated list of literal directories to include. This is to get around the
* fact that neither {@link org.apache.tools.ant.types.FileSet} nor
* {@link org.apache.tools.ant.types.DirSet} can handle multiple drives in
* a sane manner or deal with relative path outside of the base-dir.
* If null then it has not been specified.
*/
private String literalIncludes;
// =========================================================================
/**
* Create and add the VM and classname to {@link org.apache.tools.ant.types.CommandlineJava}.
*/
public GlueGenTask()
{
// create the CommandlineJava that will be used to call GlueGen
gluegenCommandline = new CommandlineJava();
// set the VM and classname in the commandline
gluegenCommandline.setVm(JavaEnvUtils.getJreExecutable("java"));
gluegenCommandline.setClassname(GLUE_GEN);
// gluegenCommandline.createVmArgument().setValue("-verbose:class");
}
// =========================================================================
// ANT getters and setters
/**
* Set the debug flag (optional). This is called by ANT.
*/
public void setDebug(final boolean debug)
{
log( ("Setting debug flag: " + debug), Project.MSG_VERBOSE);
this.debug=debug;
}
/**
* Set the dumpCPP flag (optional). This is called by ANT.
*/
public void setDumpCPP(final boolean dumpCPP)
{
log( ("Setting dumpCPP flag: " + dumpCPP), Project.MSG_VERBOSE);
this.dumpCPP=dumpCPP;
}
/**
* Set the output root dir (optional). This is called by ANT.
*
* @param outputRootDir the optional output root dir
*/
public void setOutputRootDir(final String outputRootDir)
{
log( ("Setting output root dir: " + outputRootDir), Project.MSG_VERBOSE);
this.outputRootDir=outputRootDir;
}
/**
* Set the emitter class name. This is called by ANT.
*
* @param emitter the name of the emitter class
*/
public void setEmitter(final String emitter)
{
log( ("Setting emitter class name to: " + emitter), Project.MSG_VERBOSE);
this.emitter = emitter;
}
/**
* Set the configuration file name. This is called by ANT.
*
* @param configuration the name of the configuration file
*/
public void setConfig(final String configuration)
{
log( ("Setting configuration file name to: " + configuration),
Project.MSG_VERBOSE);
this.configuration = configuration;
}
/**
* Set the source C file that is to be parsed. This is called by ANT.
*
* @param sourceFile the name of the source file
*/
public void setSrc(final String sourceFile)
{
log( ("Setting source file name to: " + sourceFile), Project.MSG_VERBOSE);
this.sourceFile = sourceFile;
}
/**
* Set a literal include directories, separated with a comma. See the literalInclude
* javadoc for more information.
*
* @param commaSeparatedIncludes the comma separated directories to include
*/
public void setLiteralInclude(final String commaSeparatedIncludes)
{
this.literalIncludes = commaSeparatedIncludes.trim();
}
/**
* Add an include file to the list. This is called by ANT for a nested
* element.
*
* @return {@link org.apache.tools.ant.types.PatternSet.NameEntry}
*/
public PatternSet.NameEntry createInclude()
{
usedIncludeSet = true;
return includeSet.createInclude();
}
/**
* Add an include file to the list. This is called by ANT for a nested
* element.
*
* @return {@link org.apache.tools.ant.types.PatternSet.NameEntry}
*/
public PatternSet.NameEntry createIncludesFile()
{
usedIncludeSet = true;
return includeSet.createIncludesFile();
}
/**
* Set the set of include patterns. Patterns may be separated by a comma
* or a space. This is called by ANT.
*
* @param includes the string containing the include patterns
*/
public void setIncludes(final String includes)
{
usedIncludeSet = true;
includeSet.setIncludes(includes);
}
/**
* Add an include file to the list that is to be exluded. This is called
* by ANT for a nested element.
*
* @return {@link org.apache.tools.ant.types.PatternSet.NameEntry}
*/
public PatternSet.NameEntry createExclude()
{
usedIncludeSet = true;
return includeSet.createExclude();
}
/**
* Add an exclude file to the list. This is called by ANT for a nested
* element.
*
* @return {@link org.apache.tools.ant.types.PatternSet.NameEntry}
*/
public PatternSet.NameEntry createExcludesFile()
{
usedIncludeSet = true;
return includeSet.createExcludesFile();
}
/**
* Set the set of exclude patterns. Patterns may be separated by a comma
* or a space. This is called by ANT.
*
* @param includes the string containing the exclude patterns
*/
public void setExcludes(final String excludes)
{
usedIncludeSet = true;
includeSet.setExcludes(excludes);
}
/**
* Set a {@link org.apache.tools.ant.types.Reference} to simplify adding
* of complex sets of files to include. This is called by ANT.
?
*
* @param reference a Reference to a {@link org.apache.tools.ant.types.FileSet}
* or {@link org.apache.tools.ant.types.DirSet}
* @throws BuildException if the specified Reference is not
* either a FileSet or DirSet
*/
public void setIncludeRefid(final Reference reference) {
// ensure that the referenced object is either a FileSet or DirSet
final Object referencedObject = reference.getReferencedObject(getProject());
if (referencedObject instanceof FileSet) {
setOfIncludeSets.add((FileSet)referencedObject);
return;
}
if (referencedObject instanceof DirSet) {
setOfIncludeSets.add((DirSet)referencedObject);
return;
}
throw new BuildException("Only FileSets or DirSets are allowed as an include refid.");
}
/**
* Add a nested {@link org.apache.tools.ant.types.DirSet} to specify
* the files to include. This is called by ANT.
*
* @param dirset the DirSet to be added
*/
public void addDirset(final DirSet dirset)
{
setOfIncludeSets.add(dirset);
}
/**
* Add an optional classpath that defines the location of {@link com.jogamp.gluegen.GlueGen}
* and GlueGen's dependencies.
*
* @returns {@link org.apache.tools.ant.types.Path}
*/
public Path createClasspath()
{
return gluegenCommandline.createClasspath(project).createPath();
}
// =========================================================================
/**
* Run the task. This involves validating the set attributes, creating
* the command line to be executed and finally executing the command.
*
* @see org.apache.tools.ant.Task#execute()
*/
@Override
public void execute()
throws BuildException
{
// validate that all of the required attributes have been set
validateAttributes();
// TODO: add logic to determine if the generated file needs to be
// regenerated
// add the attributes to the CommandlineJava
addAttributes();
log(gluegenCommandline.describeCommand(), Project.MSG_VERBOSE);
// execute the command and throw on error
final int error = execute(gluegenCommandline.getCommandline());
if(error == 1)
throw new BuildException( ("GlueGen returned: " + error), location);
}
/**
* Ensure that the user specified all required arguments.
*
* @throws BuildException if there are required arguments that are not
* present or not valid
*/
private void validateAttributes()
throws BuildException
{
// outputRootDir is optional ..
// validate that the emitter class is set
if(!isValid(emitter))
throw new BuildException("Invalid emitter class name: " + emitter);
// validate that the configuration file is set
if(!isValid(configuration))
throw new BuildException("Invalid configuration file name: " + configuration);
// validate that the source file is set
if(!isValid(sourceFile))
throw new BuildException("Invalid source file name: " + sourceFile);
// CHECK: do there need to be includes to be valid?
}
/**
* Is the specified string valid? A valid string is non-null
* and has a non-zero length.
*
* @param string the string to be tested for validity
* @return true if the string is valid. false
* otherwise.
*/
private boolean isValid(final String string)
{
// check for null
if(string == null)
return false;
// ensure that the string has a non-zero length
// NOTE: must trim() to remove leading and trailing whitespace
if(string.trim().length() < 1)
return false;
// the string is valid
return true;
}
/**
* Add all of the attributes to the command line. They have already
* been validated.
*/
private void addAttributes()
throws BuildException
{
// NOTE: GlueGen uses concatenated flag / value rather than two
// separate arguments
// add the debug flag if enabled
if(debug) {
gluegenCommandline.createArgument().setValue("--debug");
}
// add the debug flag if enabled
if(dumpCPP) {
gluegenCommandline.createArgument().setValue("--dumpCPP");
}
// add the output root dir
if(null!=outputRootDir && outputRootDir.trim().length()>0) {
gluegenCommandline.createArgument().setValue("-O" + outputRootDir);
}
// add the emitter class name
gluegenCommandline.createArgument().setValue("-E" + emitter);
// add the configuration file name
gluegenCommandline.createArgument().setValue("-C" + configuration);
// add the includedSet to the setOfIncludeSets to simplify processing
// all types of include sets ONLY if it has been set.
// NOTE: see the usedIncludeSet member javadoc for more info
// NOTE: references and nested DirSets have already been added to the
// set of include sets
if(usedIncludeSet)
{
includeSet.setDir(getProject().getBaseDir()); // NOTE: the base dir must be set
setOfIncludeSets.add(includeSet);
}
// iterate over all include sets and add their directories to the
// list of included directories.
final List includedDirectories = new LinkedList();
for (final Iterator includes = setOfIncludeSets.iterator(); includes.hasNext();)
{
// get the included set and based on its type add the directories
// to includedDirectories
final AbstractFileSet include = includes.next();
final DirectoryScanner directoryScanner = include.getDirectoryScanner(getProject());
final String[] directoryDirs = directoryScanner.getIncludedDirectories();
// add the directoryDirs to the includedDirectories
// TODO: exclude any directory that is already in the list
for(int i=0; i0 ) {
includedDirectories.add(include);
}
}
}
// add the included directories to the command
for(final Iterator includes=includedDirectories.iterator(); includes.hasNext(); )
{
final String directory = includes.next();
gluegenCommandline.createArgument().setValue("-I" + directory);
}
// finally, add the source file
gluegenCommandline.createArgument().setValue(sourceFile);
}
/**
* Execute {@link com.jogamp.gluegen.GlueGen} in a forked JVM.
*
* @throws BuildException
*/
private int execute(final String[] command)
throws BuildException
{
// create the object that will perform the command execution
final Execute execute = new Execute(new LogStreamHandler(this, Project.MSG_INFO,
Project.MSG_WARN),
null);
// set the project and command line
execute.setAntRun(project);
execute.setCommandline(command);
execute.setWorkingDirectory( project.getBaseDir() );
// execute the command
try
{
return execute.execute();
} catch(final IOException ioe)
{
throw new BuildException(ioe, location);
}
}
}