package com.jogamp.gluegen.ant;
/*
* GlueGenTask.java
* Copyright (C) 2003 Rob Grzywinski (rgrzywinski@realityinteractive.com)
*
* Copying, distribution and use of this software in source and binary
* forms, with or without modification, is permitted provided that the
* following conditions are met:
*
* Distributions of source code must reproduce the copyright notice,
* this list of conditions and the following disclaimer in the source
* code header files; and Distributions of binary code must reproduce
* the copyright notice, this list of conditions and the following
* disclaimer in the documentation, Read me file, license file and/or
* other materials provided with the software distribution.
*
* The names of Sun Microsystems, Inc. ("Sun") and/or the copyright
* holder may not 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, NON-INTERFERENCE, ACCURACY OF
* INFORMATIONAL CONTENT OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. THE
* COPYRIGHT HOLDER, SUN AND SUN'S 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 THE
* COPYRIGHT HOLDER, SUN OR SUN'S 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 ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGES. YOU ACKNOWLEDGE THAT THIS SOFTWARE IS NOT
* DESIGNED, LICENSED OR INTENDED FOR USE IN THE DESIGN, CONSTRUCTION,
* OPERATION OR MAINTENANCE OF ANY NUCLEAR FACILITY. THE COPYRIGHT
* HOLDER, SUN AND SUN'S LICENSORS DISCLAIM ANY EXPRESS OR IMPLIED
* WARRANTY OF FITNESS FOR SUCH USES.
*/
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.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;
/**
* <p>An <a href="http://ant.apache.org">ANT</a> {@link org.apache.tools.ant.Task}
* for using {@link com.jogamp.gluegen.GlueGen}.</p>
*
* <p>Usage:</p>
* <pre>
<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 hack to get around FileSet / DirSet issues with different drives]"
emitter="[emitter class name]"
config="[configuration file]"
dumpCPP="[optional boolean]"
debug="[optional boolean]" />
* </pre>
*
* @author Rob Grzywinski <a href="mailto:rgrzywinski@realityinteractive.com">rgrzywinski@yahoo.com</a>
*/
// FIXME: blow out javadoc
// NOTE: this has not been exhaustively tested
public class GlueGenTask extends Task
{
/**
* <p>The {@link com.jogamp.gluegen.GlueGen} classname.</p>
*/
private static final String GLUE_GEN = "com.jogamp.gluegen.GlueGen";
// =========================================================================
/**
* <p>The {@link org.apache.tools.ant.types.CommandlineJava} that is used
* to execute {@link com.jogamp.gluegen.GlueGen}.</p>
*/
private CommandlineJava gluegenCommandline;
// =========================================================================
/**
* <p>The optional debug flag.</p>
*/
private boolean debug=false;
/**
* <p>The optional dumpCPP flag.</p>
*/
private boolean dumpCPP=false;
/**
* <p>The optional output root dir.</p>
*/
private String outputRootDir;
/**
* <p>The name of the emitter class.</p>
*/
private String emitter;
/**
* <p>The configuration file name.</p>
*/
private String configuration;
/**
* <p>The name of the source C file that is to be parsed.</p>
*/
private String sourceFile;
/**
* <p>The {@link org.apache.tools.ant.types.FileSet} of includes.</p>
*/
private FileSet includeSet = new FileSet();
/**
* <p>Because a {@link org.apache.tools.ant.types.FileSet} will include
* everything in its base directory if it is left untouched, the <code>includeSet</code>
* must only be added to the set of includes if it has been <i>explicitly</i>
* set.</p>
*/
private boolean usedIncludeSet = false; // by default it is not used
/**
* <p>The set of include sets. This allows includes to be added in multiple
* fashions.</p>
*/
// FIXME: rename to listXXXX
private List setOfIncludeSets = new LinkedList();
/**
* <p>A single literal directory 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. If <code>null</code> then it has not been specified.</p>
*/
private String literalInclude;
// =========================================================================
/**
* <p>Create and add the VM and classname to {@link org.apache.tools.ant.types.CommandlineJava}.</p>
*/
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
/**
* <p>Set the debug flag (optional). This is called by ANT.</p>
*/
public void setDebug(boolean debug)
{
log( ("Setting debug flag: " + debug), Project.MSG_VERBOSE);
this.debug=debug;
}
/**
* <p>Set the dumpCPP flag (optional). This is called by ANT.</p>
*/
public void setDumpCPP(boolean dumpCPP)
{
log( ("Setting dumpCPP flag: " + dumpCPP), Project.MSG_VERBOSE);
this.dumpCPP=dumpCPP;
}
/**
* <p>Set the output root dir (optional). This is called by ANT.</p>
*
* @param outputRootDir the optional output root dir
*/
public void setOutputRootDir(String outputRootDir)
{
log( ("Setting output root dir: " + outputRootDir), Project.MSG_VERBOSE);
this.outputRootDir=outputRootDir;
}
/**
* <p>Set the emitter class name. This is called by ANT.</p>
*
* @param emitter the name of the emitter class
*/
public void setEmitter(String emitter)
{
log( ("Setting emitter class name to: " + emitter), Project.MSG_VERBOSE);
this.emitter = emitter;
}
/**
* <p>Set the configuration file name. This is called by ANT.</p>
*
* @param configuration the name of the configuration file
*/
public void setConfig(String configuration)
{
log( ("Setting configuration file name to: " + configuration),
Project.MSG_VERBOSE);
this.configuration = configuration;
}
/**
* <p>Set the source C file that is to be parsed. This is called by ANT.</p>
*
* @param sourceFile the name of the source file
*/
public void setSrc(String sourceFile)
{
log( ("Setting source file name to: " + sourceFile), Project.MSG_VERBOSE);
this.sourceFile = sourceFile;
}
/**
* <p>Set a single literal include directory. See the <code>literalInclude</code>
* javadoc for more information.</p>
*
* @param directory the directory to include
*/
public void setLiteralInclude(String directory)
{
this.literalInclude = directory;
}
/**
* <p>Add an include file to the list. This is called by ANT for a nested
* element.</p>
*
* @return {@link org.apache.tools.ant.types.PatternSet.NameEntry}
*/
public PatternSet.NameEntry createInclude()
{
usedIncludeSet = true;
return includeSet.createInclude();
}
/**
* <p>Add an include file to the list. This is called by ANT for a nested
* element.</p>
*
* @return {@link org.apache.tools.ant.types.PatternSet.NameEntry}
*/
public PatternSet.NameEntry createIncludesFile()
{
usedIncludeSet = true;
return includeSet.createIncludesFile();
}
/**
* <p>Set the set of include patterns. Patterns may be separated by a comma
* or a space. This is called by ANT.</p>
*
* @param includes the string containing the include patterns
*/
public void setIncludes(String includes)
{
usedIncludeSet = true;
includeSet.setIncludes(includes);
}
/**
* <p>Add an include file to the list that is to be exluded. This is called
* by ANT for a nested element.</p>
*
* @return {@link org.apache.tools.ant.types.PatternSet.NameEntry}
*/
public PatternSet.NameEntry createExclude()
{
usedIncludeSet = true;
return includeSet.createExclude();
}
/**
* <p>Add an exclude file to the list. This is called by ANT for a nested
* element.</p>
*
* @return {@link org.apache.tools.ant.types.PatternSet.NameEntry}
*/
public PatternSet.NameEntry createExcludesFile()
{
usedIncludeSet = true;
return includeSet.createExcludesFile();
}
/**
* <p>Set the set of exclude patterns. Patterns may be separated by a comma
* or a space. This is called by ANT.</p>
*
* @param includes the string containing the exclude patterns
*/
public void setExcludes(String excludes)
{
usedIncludeSet = true;
includeSet.setExcludes(excludes);
}
/**
* <p>Set a {@link org.apache.tools.ant.types.Reference} to simplify adding
* of complex sets of files to include. This is called by ANT.</p>?
*
* @param reference a <code>Reference</code> to a {@link org.apache.tools.ant.types.FileSet}
* or {@link org.apache.tools.ant.types.DirSet}
* @throws BuildException if the specified <code>Reference</code> is not
* either a <code>FileSet</code> or <code>DirSet</code>
*/
public void setIncludeRefid(Reference reference)
{
// ensure that the referenced object is either a FileSet or DirSet
final Object referencedObject = reference.getReferencedObject(getProject());
if( !( (referencedObject instanceof FileSet) ||
(referencedObject instanceof DirSet)) )
{
throw new BuildException("Only FileSets or DirSets are allowed as an include refid.");
}
// add the referenced object to the set of include sets
setOfIncludeSets.add(referencedObject);
}
/**
* <p>Add a nested {@link org.apache.tools.ant.types.DirSet} to specify
* the files to include. This is called by ANT.</p>
*
* @param dirset the <code>DirSet</code> to be added
*/
public void addDirset(DirSet dirset)
{
setOfIncludeSets.add(dirset);
}
/**
* <p>Add an optional classpath that defines the location of {@link com.jogamp.gluegen.GlueGen}
* and <code>GlueGen</code>'s dependencies.</p>
*
* @returns {@link org.apache.tools.ant.types.Path}
*/
public Path createClasspath()
{
return gluegenCommandline.createClasspath(project).createPath();
}
// =========================================================================
/**
* <p>Run the task. This involves validating the set attributes, creating
* the command line to be executed and finally executing the command.</p>
*
* @see org.apache.tools.ant.Task#execute()
*/
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);
}
/**
* <p>Ensure that the user specified all required arguments.</p>
*
* @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?
}
/**
* <p>Is the specified string valid? A valid string is non-<code>null</code>
* and has a non-zero length.</p>
*
* @param string the string to be tested for validity
* @return <code>true</code> if the string is valid. <code>false</code>
* otherwise.
*/
private boolean isValid(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;
}
/**
* <p>Add all of the attributes to the command line. They have already
* been validated.</p>
*/
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(Iterator includes=setOfIncludeSets.iterator(); includes.hasNext(); )
{
// get the included set and based on its type add the directories
// to includedDirectories
Object include = (Object)includes.next();
final String[] directoryDirs;
if(include instanceof FileSet)
{
final FileSet fileSet = (FileSet)include;
DirectoryScanner directoryScanner = fileSet.getDirectoryScanner(getProject());
directoryDirs = directoryScanner.getIncludedDirectories();
} else if(include instanceof DirSet)
{
final DirSet dirSet = (DirSet)include;
DirectoryScanner directoryScanner = dirSet.getDirectoryScanner(getProject());
directoryDirs = directoryScanner.getIncludedDirectories();
} else
{
// NOTE: this cannot occur as it is checked on setXXX() but
// just to be pedantic this is here
throw new BuildException("Invalid included construct.");
}
// add the directoryDirs to the includedDirectories
// TODO: exclude any directory that is already in the list
for(int i=0; i<directoryDirs.length; i++)
{
includedDirectories.add(directoryDirs[i]);
}
}
// if literalInclude is valid then add it to the list of included
// directories
if(isValid(literalInclude))
includedDirectories.add(literalInclude);
// add the included directories to the command
for(Iterator includes=includedDirectories.iterator(); includes.hasNext(); )
{
String directory = (String)includes.next();
gluegenCommandline.createArgument().setValue("-I" + directory);
}
// finally, add the source file
gluegenCommandline.createArgument().setValue(sourceFile);
}
/**
* <p>Execute {@link com.jogamp.gluegen.GlueGen} in a forked JVM.</p>
*
* @throws BuildException
*/
private int execute(String[] command)
throws BuildException
{
// create the object that will perform the command execution
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(IOException ioe)
{
throw new BuildException(ioe, location);
}
}
}