Examples of org.apache.tools.ant.util.FileNameMapper

org.apache.tools.ant.util.FileNameMapper
Interface to be used by SourceFileScanner.
Used to find the name of the target file(s) corresponding to a source file.

The rule by which the file names are transformed is specified via the setFrom and setTo methods. The exact meaning of these is implementation dependent.
@author Stefan Bodewig

        }
        if (container == null) {
            if (type == null && classname == null) {
                container = new CompositeMapper();
            } else {
                FileNameMapper m = getImplementation();
                if (m instanceof ContainerMapper) {
                    container = (ContainerMapper) m;
                } else {
                    throw new BuildException(String.valueOf(m)
                        + " mapper implementation does not support nested mappers!");

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            throw new BuildException(
                "must not specify both type and classname attribute");
        }


        try {
            FileNameMapper m
                = (FileNameMapper) (getImplementationClass().newInstance());
            final Project p = getProject();
            if (p != null) {
                p.setProjectReference(m);
            }
            m.setFrom(from);
            m.setTo(to);


            return m;
        } catch (BuildException be) {
            throw be;
        } catch (Throwable t) {

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                log("Skipping " + inF + " it is a directory.",
                    Project.MSG_VERBOSE);
                return;
            }


            FileNameMapper mapper = null;
            if (mapperElement != null) {
                mapper = mapperElement.getImplementation();
            } else {
                mapper = new StyleMapper();
            }


            String[] outFileName = mapper.mapFileName(xmlFile);
            if (outFileName == null || outFileName.length == 0) {
                log("Skipping " + inFile + " it cannot get mapped to output.",
                    Project.MSG_VERBOSE);
                return;
            } else if (outFileName == null || outFileName.length > 1) {

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     * @param files the files to scan for
     * @return true if the files are up to date
     */
    protected boolean scanDir(File srcDir, String[] files) {
        SourceFileScanner sfs = new SourceFileScanner(this);
        FileNameMapper mapper = getMapper();
        File dir = srcDir;
        if (mapperElement == null) {
            dir = null;
        }
        return sfs.restrict(files, srcDir, dir, mapper).length == 0;

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        }
        return sfs.restrict(files, srcDir, dir, mapper).length == 0;
    }


    private FileNameMapper getMapper() {
        FileNameMapper mapper = null;
        if (mapperElement == null) {
            MergingMapper mm = new MergingMapper();
            mm.setTo(targetFile.getAbsolutePath());
            mapper = mm;
        } else {

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        if (srcDir.equals(destDir) && extension == null && mapper == null) {
            throw new BuildException("The ext attribute or a mapper must be set if"
                                     + " src and dest dirs are the same.");
        }


        FileNameMapper m = null;
        if (mapper == null) {
            if (extension == null) {
                m = new IdentityMapper();
            } else {
                m = new ExtMapper();
            }
        } else {
            m = mapper.getImplementation();
        }


        scanner = getDirectoryScanner(srcDir);
        files = scanner.getIncludedFiles();
        SourceFileScanner sfs = new SourceFileScanner(this);
        files = sfs.restrict(files, srcDir, destDir, m);
        int count = files.length;
        if (count == 0) {
            return;
        }
        String message = "Converting " + count + " file"
            + (count != 1 ? "s" : "") + " from ";
        log(message + srcDir + " to " + destDir);
        for (int i = 0; i < files.length; i++) {
            convert(files[i], m.mapFileName(files[i])[0]);
        }
    }

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            // Get the list of path components in canonical form
            String[] elems = path.list();


            if (mapper != null) {
                FileNameMapper impl = mapper.getImplementation();
                List ret = new ArrayList();
                for (int i = 0; i < elems.length; ++i) {
                    String[] mapped = impl.mapFileName(elems[i]);
                    for (int m = 0; mapped != null && m < mapped.length; ++m) {
                        ret.add(mapped[m]);
                    }
                }
                elems = (String[]) ret.toArray(new String[ret.size()]);

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    // overridden in order to take advantage of ZipFile
    protected void expandFile(FileUtils fileUtils, File srcF, File dir) {
        log("Expanding: " + srcF + " into " + dir, Project.MSG_INFO);
        ZipFile zf = null;
        FileNameMapper mapper = getMapper();
        if (!srcF.exists()) {
            throw new BuildException("Unable to expand " + srcF
                                     + " as the file does not exist",
                                     getLocation());
        }

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    }


    private void expandArchiveStream(String name, ArchiveInputStream is,
                                     File dir)
        throws IOException {
        FileNameMapper mapper = getMapper();
        log("Expanding: " + name + " into " + dir, Project.MSG_INFO);
        boolean empty = true;
        ArchiveEntry ent = null;
        while ((ent = is.getNextEntry()) != null) {
            if (skipUnreadable && !is.canReadEntryData(ent)) {

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        }
    }


    protected boolean scanDir(File srcDir, String[] files) {
        SourceFileScanner sfs = new SourceFileScanner(this);
        FileNameMapper mapper = null;
        File dir = srcDir;
        if (mapperElement == null) {
            MergingMapper mm = new MergingMapper();
            mm.setTo(_targetFile.getAbsolutePath());
            mapper = mm;

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