/**
* Returns list of mapped files, that should be transformed. Files can by specified via attributes
* (srcFile, srcDir) or resources (FileSet, FileList, DirSet, etc). Mapped file represents input
* and output file for transformation.
*
* @return list of mapped files
*/
public List<MappedFile> getMappedFiles() {
mappedFiles.clear();
// one src file
if (getSrcFile() != null) {
addMappedFile(getSrcFile());
}
if (getSrcDir() != null) {
addMappedFile(getSrcDir());
}
Iterator element = resources.iterator();
while (element.hasNext()) {
ResourceCollection rc = (ResourceCollection) element.next();
if (rc instanceof FileSet && rc.isFilesystemOnly()) {
FileSet fs = (FileSet) rc;
File fromDir = fs.getDir(getProject());
DirectoryScanner ds;
try {
ds = fs.getDirectoryScanner(getProject());
} catch (BuildException ex) {
log("Could not scan directory " + fromDir, ex, Project.MSG_ERR);
continue;
}
for (String f : ds.getIncludedFiles()) {
addMappedFile(new File(fromDir + System.getProperty("file.separator") + f), fromDir);
}
} else {
if (!rc.isFilesystemOnly()) {
log("Only filesystem resources are supported", Project.MSG_WARN);
continue;
}
Iterator rcIt = rc.iterator();
while (rcIt.hasNext()) {
Resource r = (Resource) rcIt.next();
if (!r.isExists()) {
log("Could not find resource " + r.toLongString(), Project.MSG_VERBOSE);
continue;
}
if (r instanceof FileResource) {
FileResource fr = (FileResource) r;
addMappedFile(fr.getFile(), fr.getBaseDir());
} else {
log(
"Only file resources are supported (" + r.getClass().getSimpleName() + " found)",
Project.MSG_WARN);
continue;
}
}
}
}
return mappedFiles;
}
/**
* Protected method for simplyfied addinng of mapped files
*
* @param file file to add
* @param baseDir base directory for file
*/
protected void addMappedFile(File file, File baseDir) {
if (file.isFile()) {
if (baseDir == null) {
baseDir = file.getParentFile();
}
MappedFile mappedFile = new MappedFile();
mappedFile.setFrom(file);
String filename = file.getName();
String[] names = getMapper().mapFileName(filename);
// we don't use original filename if no mapping is available
if (names == null || names.length == 0) {
return;
}
File newFile = new File(file.getParent() + System.getProperty("file.separator") + names[0]);
if (getDestDir() != null) {
try {
newFile =
new File(
newFile
.getCanonicalPath()
.replace(baseDir.getCanonicalPath(), getDestDir().getCanonicalPath()));
} catch (IOException ex) {
log("Couldn't map file", ex, Project.MSG_WARN);
return;
}
}
mappedFile.setTo(newFile);
mappedFiles.add(mappedFile);
} else if (file.isDirectory()) {
if (baseDir == null) {
baseDir = file;
}
DirectoryScanner ds = new DirectoryScanner();
ds.setBasedir(file);
ds.scan();
for (String fileName : ds.getIncludedFiles()) {
addMappedFile(new File(file + System.getProperty("file.separator") + fileName), baseDir);
}
}
}
/**
* Add resource collection
*
* @param rc resource collection to add
*/
public void add(ResourceCollection rc) {
resources.add(rc);
}
/**
* Main entry point for this task. It creates transformation specified by classname attribute,
* passes all parameters and executes it.
*
* @throws BuildException if an error occured
*/
@Override
public void execute() throws BuildException {
if (getClassname() == null) {
throw new BuildException("Classname of transformation is not set.");
}
if (getSrcFile() != null && getSrcDir() != null) {
throw new BuildException("Both srcFile and srcDir were set.");
}
if (getDestFile() != null && getDestDir() != null) {
throw new BuildException("Both destFile and destDir were set.");
}
if (!resources.isEmpty() && (getSrcFile() != null || getSrcDir() != null)) {
throw new BuildException("Resources can't be combined with srcFile or srcDir.");
}
initClassloader();
try {
TransformationLoader loader =
new TransformationLoader(Thread.currentThread().getContextClassLoader());
Transformation transObj = null;
try {
transObj = loader.getInstance(getClassname());
} catch (InstantiationException ex) {
throw new BuildException("Transformation couldn't be instanciated", ex);
} catch (IllegalAccessException ex) {
throw new BuildException("Transformation couldn't be accessed", ex);
}
if (transObj == null) {
throw new BuildException("Transformation " + getClassname() + " couldn't be loaded");
}
List<MappedFile> files = getMappedFiles();
if (files.isEmpty()) {
log(
"No files specified, " + transObj.getClass().getSimpleName() + " skipped",
Project.MSG_INFO);
return;
}
for (MappedFile mf : files) {
log("Mapped file " + mf.getFrom() + " to " + mf.getTo(), Project.MSG_VERBOSE);
}
transObj.setParam("baseDir", getProject().getBaseDir().getPath());
transObj.setMappedFiles(files);
transObj.setParams(parameters);
for (String key : parameters.keySet())
log(
"Parsed parameter "
+ key
+ " = "
+ parameters.get(key)
+ " ("
+ parameters.get(key).getClass().getName()
+ ")",
Project.MSG_VERBOSE);
try {
log(
"Executing transformation "
+ transObj.getClass().getSimpleName()
+ " on "
+ mappedFiles.size()
+ " files");
transObj.execute();
} catch (TransformationException ex) {
log("Transformation has failed", ex, Project.MSG_ERR);
if (isFailonerror()) {
throw new BuildException("Transformation has failed.", ex);
}
}
} finally {
restoreClassloader();
}
}
