src/main/org/apache/tools/ant/taskdefs/optional/image/Image.java [137:256]:
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    public void setDestDir(File destDir) {
        this.destDir = destDir;
    }

    /**
     * Add an ImageOperation to chain.
     * @param instr The ImageOperation to append to the chain.
     */
    public void addImageOperation(ImageOperation instr) {
        instructions.add(instr);
    }

    /**
     * Add a Rotate ImageOperation to the chain.
     * @param instr The Rotate operation to add to the chain.
     * @see org.apache.tools.ant.types.optional.image.Rotate
     */
    public void addRotate(Rotate instr) {
        instructions.add(instr);
    }

    /**
     * Add a Scale ImageOperation to the chain.
     * @param instr The Scale operation to add to the chain.
     * @see org.apache.tools.ant.types.optional.image.Scale
     */
    public void addScale(Scale instr) {
        instructions.add(instr);
    }

    /**
     * Add a Draw ImageOperation to the chain.  DrawOperation
     * DataType objects can be nested inside the Draw object.
     * @param instr The Draw operation to add to the chain.
     * @see org.apache.tools.ant.types.optional.image.Draw
     * @see org.apache.tools.ant.types.optional.image.DrawOperation
     */
    public void addDraw(Draw instr) {
        instructions.add(instr);
    }

    /**
    * Add an ImageOperation to chain.
    * @param instr The ImageOperation to append to the chain.
    * @since Ant 1.7
    */
    public void add(ImageOperation instr) {
        addImageOperation(instr);
    }

    /**
     * Defines the mapper to map source to destination files.
     * @return a mapper to be configured
     * @exception BuildException if more than one mapper is defined
     * @since Ant 1.8.0
     */
    public Mapper createMapper() throws BuildException {
        if (mapperElement != null) {
            throw new BuildException("Cannot define more than one mapper",
                                     getLocation());
        }
        mapperElement = new Mapper(getProject());
        return mapperElement;
    }

    /**
     * Add a nested filenamemapper.
     * @param fileNameMapper the mapper to add.
     * @since Ant 1.8.0
     */
    public void add(FileNameMapper fileNameMapper) {
        createMapper().add(fileNameMapper);
    }

    /**
     * Executes all the chained ImageOperations on the files inside
     * the directory.
     * @param srcDir File
     * @param srcNames String[]
     * @param dstDir File
     * @param mapper FileNameMapper
     * @return int
     * @since Ant 1.8.0
     */
    public int processDir(final File srcDir, final String[] srcNames,
                          final File dstDir, final FileNameMapper mapper) {
        int writeCount = 0;

        for (final String srcName : srcNames) {
            final File srcFile = new File(srcDir, srcName).getAbsoluteFile();

            final String[] dstNames = mapper.mapFileName(srcName);
            if (dstNames == null) {
                log(srcFile + " skipped, don't know how to handle it",
                    Project.MSG_VERBOSE);
                continue;
            }

            for (String dstName : dstNames) {
                final File dstFile = new File(dstDir, dstName).getAbsoluteFile();

                if (dstFile.exists()) {
                    // avoid overwriting unless necessary
                    if (!overwrite
                       && srcFile.lastModified() <= dstFile.lastModified()) {

                        log(srcFile + " omitted as " + dstFile
                            + " is up to date.", Project.MSG_VERBOSE);

                        // don't overwrite the file
                        continue;
                    }

                    // avoid extra work while overwriting
                    if (!srcFile.equals(dstFile)) {
                        dstFile.delete();
                    }
                }
                processFile(srcFile, dstFile);
                ++writeCount;
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src/main/org/apache/tools/ant/taskdefs/optional/image/ImageIOTask.java [123:242]:
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    public void setDestDir(File destDir) {
        this.destDir = destDir;
    }

    /**
     * Add an ImageOperation to chain.
     * @param instr The ImageOperation to append to the chain.
     */
    public void addImageOperation(ImageOperation instr) {
        instructions.add(instr);
    }

    /**
     * Add a Rotate ImageOperation to the chain.
     * @param instr The Rotate operation to add to the chain.
     * @see Rotate
     */
    public void addRotate(Rotate instr) {
        instructions.add(instr);
    }

    /**
     * Add a Scale ImageOperation to the chain.
     * @param instr The Scale operation to add to the chain.
     * @see Scale
     */
    public void addScale(Scale instr) {
        instructions.add(instr);
    }

    /**
     * Add a Draw ImageOperation to the chain.  DrawOperation
     * DataType objects can be nested inside the Draw object.
     * @param instr The Draw operation to add to the chain.
     * @see Draw
     * @see org.apache.tools.ant.types.optional.image.DrawOperation
     */
    public void addDraw(Draw instr) {
        instructions.add(instr);
    }

    /**
    * Add an ImageOperation to chain.
    * @param instr The ImageOperation to append to the chain.
    * @since Ant 1.7
    */
    public void add(ImageOperation instr) {
        addImageOperation(instr);
    }

    /**
     * Defines the mapper to map source to destination files.
     * @return a mapper to be configured
     * @exception BuildException if more than one mapper is defined
     * @since Ant 1.8.0
     */
    public Mapper createMapper() throws BuildException {
        if (mapperElement != null) {
            throw new BuildException("Cannot define more than one mapper",
                                     getLocation());
        }
        mapperElement = new Mapper(getProject());
        return mapperElement;
    }

    /**
     * Add a nested filenamemapper.
     * @param fileNameMapper the mapper to add.
     * @since Ant 1.8.0
     */
    public void add(FileNameMapper fileNameMapper) {
        createMapper().add(fileNameMapper);
    }

    /**
     * Executes all the chained ImageOperations on the files inside
     * the directory.
     * @param srcDir File
     * @param srcNames String[]
     * @param dstDir File
     * @param mapper FileNameMapper
     * @return int
     * @since Ant 1.8.0
     */
    public int processDir(final File srcDir, final String[] srcNames,
                          final File dstDir, final FileNameMapper mapper) {
        int writeCount = 0;

        for (final String srcName : srcNames) {
            final File srcFile = new File(srcDir, srcName).getAbsoluteFile();

            final String[] dstNames = mapper.mapFileName(srcName);
            if (dstNames == null) {
                log(srcFile + " skipped, don't know how to handle it",
                    Project.MSG_VERBOSE);
                continue;
            }

            for (String dstName : dstNames) {
                final File dstFile = new File(dstDir, dstName).getAbsoluteFile();

                if (dstFile.exists()) {
                    // avoid overwriting unless necessary
                    if (!overwrite
                       && srcFile.lastModified() <= dstFile.lastModified()) {

                        log(srcFile + " omitted as " + dstFile
                            + " is up to date.", Project.MSG_VERBOSE);

                        // don't overwrite the file
                        continue;
                    }

                    // avoid extra work while overwriting
                    if (!srcFile.equals(dstFile)) {
                        dstFile.delete();
                    }
                }
                processFile(srcFile, dstFile);
                ++writeCount;
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