Examples with OpusLink com.xenoage.zong.io.musicxml.opus.OpusLink used on opensource projects

Example 1 with OpusLink

use of com.xenoage.zong.io.musicxml.opus.OpusLink in project Zong by Xenoage.

the class OpusLinkResolver method processNextItem.

/**
 * Processes the next opus item in the input queue, or finishes the processing
 * if the queue is empty.
 */
private void processNextItem() {
    if (input.size() > 0) {
        // another item to resolve
        OpusItem inputItem = input.remove(0);
        if (inputItem instanceof OpusLink) {
            // opus link; must be resolved
            String filePath = ((OpusLink) inputItem).getLink().getHref();
            if (zip != null) {
                // read zipped opus file
                InputStream opusStream;
                try {
                    opusStream = zip.openFile(filePath);
                    resolveItem(opusStream);
                } catch (com.xenoage.utils.io.FileNotFoundException ex) {
                    callback.onFailure(ex);
                }
            } else if (basePath != null) {
                // read plain opus file
                platformUtils().openFileAsync(basePath + "/" + filePath, new AsyncResult<InputStream>() {

                    @Override
                    public void onSuccess(InputStream opusStream) {
                        resolveItem(opusStream);
                    }

                    @Override
                    public void onFailure(Exception ex) {
                        callback.onFailure(ex);
                    }
                });
            } else {
                callback.onFailure(new IOException("neither zip nor basePath is given"));
            }
        } else if (inputItem instanceof Opus) {
            // opus; can contain links which must be resolved
            Opus childOpus = (Opus) inputItem;
            new OpusLinkResolver(childOpus, zip, basePath).produce(new AsyncResult<Opus>() {

                @Override
                public void onSuccess(Opus opus) {
                    acc.add(opus);
                    // item finished, next one
                    processNextItem();
                }

                @Override
                public void onFailure(Exception ex) {
                    callback.onFailure(ex);
                }
            });
        } else {
            // simple case. item needs not to be resolved, just add it
            acc.add(inputItem);
            processNextItem();
        }
    } else {
        // all items resolved
        callback.onSuccess(new Opus(opus.getTitle(), acc));
    }
}