Examples of net.jcores.jre.CommonCore

net.jcores.jre.CommonCore
The common core is a notso-singleton object shared by all created {@link Core} instances of the current class loader.It is mainly a cache, contains helper and utility methods and takes care of the {@link Manager} objects. For example, to but the current threadto sleep (without the ugly try/catch), you would write:

$.sys.sleep(1000);

Methods and object commonly required by the other cores. All methods in here are (and must be!) thread safe. While most methods (like async(), box(), clone(), ...) are safe to use in any application, there are a few methods (like manager(), nexus(), log()) which should be used with care in multi-classloader-applications like application servers. While they will work in local parts of the code they usually fail to share state between remote parts (e.g., one web application could not register an object with nexus() another web application could see). Methods marked with {@link AttentionWithClassloaders} are such candidates. You can still use them in big apps,but you should know what you are doing. @author Ralf Biedert @since 1.0

     * @return The same core file object (<code>this</code>).
     */
    public CoreFile append(Object object, final Option... options) {
        if (object == null) return this;


        final CommonCore cc = this.commonCore;
        final String string = object.toString();


        map(new F1<File, Object>() {
            public Object f(File x) {
                try {

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            this.commonCore.report(MessageType.MISUSE, "Destination null for copy().");
            return this;
        }


        final File dest = new File(destination);
        final CommonCore cc = this.commonCore;


        return new CoreFile(this.commonCore, map(new F1<File, File[]>() {
            @Override
            public File[] f(File x) {
                return Files.copy(cc, x, dest);

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     * <br/>
     * 
     * @return A CoreByteBuffer with binary content.
     */
    public CoreByteBuffer data() {
        final CommonCore cc = this.commonCore;
        return new CoreByteBuffer(this.commonCore, map(new F1<File, ByteBuffer>() {
            public ByteBuffer f(File x) {
                try {
                    final FileChannel channel = new FileInputStream(x).getChannel();
                    final long size = channel.size();


                    final ByteBuffer buffer = ByteBuffer.allocate((int) size);
                    int read = channel.read(buffer);


                    if (read != size) {
                        cc.report(MessageType.EXCEPTION, "Error reading data() from " + x + ". Size mismatch (" + read + " != " + size + ")");
                        return null;
                    }


                    channel.close();
                    return buffer;
                } catch (FileNotFoundException e) {
                    cc.report(MessageType.EXCEPTION, "Error reading data() from " + x + ". File not found!");
                    return null;
                } catch (IOException e) {
                    cc.report(MessageType.EXCEPTION, "Error reading data() from " + x + ". IOException!");
                    return null;
                }
            }
        }).array(ByteBuffer.class));
    }

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     * <br/>
     * 
     * @return The same core file object (<code>this</code>).
     */
    public CoreFile delete() {
        final CommonCore cc = this.commonCore;
        map(new F1<File, Void>() {
            public Void f(File x) {
                int lastSize = Integer.MAX_VALUE;
                List<File> list = CoreKeeper.$(x).dir(ListDirectories.DO).list();


                while (list.size() < lastSize) {
                    lastSize = list.size();


                    for (File file : list) {
                        file.delete();
                    }


                    list = CoreKeeper.$(x).dir(ListDirectories.DO).list();
                }


                // Try to delete the entry
                if (!x.delete()) {
                    cc.report(MessageType.EXCEPTION, "Unable to delete " + x);
                }


                return null;
            }
        });

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     * <br/>
     * 
     * @return A CoreBufferedImage with the loaded images.
     */
    public CoreBufferedImage image() {
        final CommonCore cc = this.commonCore;
        return new CoreBufferedImage(this.commonCore, map(new F1<File, BufferedImage>() {
            public BufferedImage f(File x) {
                try {
                    return ImageIO.read(x);
                } catch (IOException e) {
                    cc.report(MessageType.EXCEPTION, "Error loading image " + x);
                }
                return null;
            }
        }).array(BufferedImage.class));
    }

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     * <br/>
     * 
     * @return A CoreString object containing the files' contents.
     */
    public CoreString text() {
        final CommonCore cc = this.commonCore;
        return new CoreString(this.commonCore, map(new F1<File, String>() {
            public String f(final File x) {
                return Files.readText(cc, x);
            }
        }).array(String.class));

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     * <br/>
     * 
     * @return A CoreFile object enclosing the files of all downloaded URIs.
     */
    public CoreFile download() {
        final CommonCore cc = this.commonCore;


        return new CoreFile(this.commonCore, map(new F1<URI, File>() {
            public File f(URI x) {
                try {
                    final URL url = x.toURL();
                    final InputStream openStream = url.openStream();
                    final File file = File.createTempFile("jcores.download.", ".tmp");


                    Streams.saveTo(openStream, file);


                    openStream.close();


                    return file;
                } catch (MalformedURLException e) {
                    cc.report(MessageType.EXCEPTION, "URI " + x + " could not be transformed into an URL.");
                } catch (IOException e) {
                    cc.report(MessageType.EXCEPTION, "URI " + x + " could not be opened for reading.");
                }


                return null;
            }
        }).array(File.class));

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     * @return A CoreFile object enclosing the files of all downloaded URIs.
     */
    public CoreFile download(final String path) {
        // Create output directory 
        new File(path).mkdirs();
        final CommonCore cc = this.commonCore;


        return new CoreFile(this.commonCore, map(new F1<URI, File>() {
            public File f(URI x) {
                try {
                    final String filepath = CoreKeeper.$(x.getPath()).split("/").get(-1);
                    final URL url = x.toURL();
                    final InputStream openStream = url.openStream();
                    final File file = new File(path + "/" + filepath);


                    Streams.saveTo(openStream, file);


                    openStream.close();


                    return file;
                } catch (MalformedURLException e) {
                    cc.report(MessageType.EXCEPTION, "URI " + x + " could not be transformed into an URL.");
                } catch (IOException e) {
                    cc.report(MessageType.EXCEPTION, "URI " + x + " could not be opened for reading.");
                }


                return null;
            }
        }).array(File.class));

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     * @param options Options to listen to.
     * 
     * @return This object again.
     */
    public CoreJComponent onDrop(final F1<CoreObject<Object>, Void> handler, final Option... options) {
        final CommonCore cc = this.commonCore;


        for (int i = 0; i < size(); i++) {
            final JComponent component = (JComponent) get(i);
            if (component == null) continue;

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Related Classes of net.jcores.jre.CommonCore

net.jcores.jre.cores.Core

net.jcores.jre.cores.CoreClass

net.jcores.jre.cores.CoreFile

net.jcores.jre.cores.CoreJComponent

net.jcores.jre.cores.CoreNumber

net.jcores.jre.cores.CoreObject

net.jcores.jre.cores.CoreURI

net.jcores.jre.interfaces.functions.F0

net.jcores.jre.managers.ManagerClass

net.jcores.jre.managers.ManagerDebugGUI

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