public void readFileAs()

in src/android/FileUtils.java [1110:1170]
54 lines of code
11 McCabe index (conditional complexity)

    public void readFileAs(final String srcURLstr, final int start, final int end, final CallbackContext callbackContext, final String encoding, final int resultType) throws MalformedURLException {
        try {
        	LocalFilesystemURL inputURL = LocalFilesystemURL.parse(srcURLstr);
        	Filesystem fs = this.filesystemForURL(inputURL);
        	if (fs == null) {
        		throw new MalformedURLException("No installed handlers for this URL");
        	}

            fs.readFileAtURL(inputURL, start, end, new Filesystem.ReadFileCallback() {
                public void handleData(InputStream inputStream, String contentType) {
            		try {
                        ByteArrayOutputStream os = new ByteArrayOutputStream();
                        final int BUFFER_SIZE = 8192;
                        byte[] buffer = new byte[BUFFER_SIZE];

                        for (;;) {
                            int bytesRead = inputStream.read(buffer, 0, BUFFER_SIZE);

                            if (bytesRead <= 0) {
                                break;
                            }
                            os.write(buffer, 0, bytesRead);
                        }

            			PluginResult result;
            			switch (resultType) {
            			case PluginResult.MESSAGE_TYPE_STRING:
                            result = new PluginResult(PluginResult.Status.OK, os.toString(encoding));
            				break;
            			case PluginResult.MESSAGE_TYPE_ARRAYBUFFER:
                            result = new PluginResult(PluginResult.Status.OK, os.toByteArray());
            				break;
            			case PluginResult.MESSAGE_TYPE_BINARYSTRING:
                            result = new PluginResult(PluginResult.Status.OK, os.toByteArray(), true);
            				break;
            			default: // Base64.
                        byte[] base64 = Base64.encode(os.toByteArray(), Base64.NO_WRAP);
            			String s = "data:" + contentType + ";base64," + new String(base64, "US-ASCII");
            			result = new PluginResult(PluginResult.Status.OK, s);
            			}

            			callbackContext.sendPluginResult(result);
            		} catch (IOException e) {
            			LOG.d(LOG_TAG, e.getLocalizedMessage());
            			callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.IO_EXCEPTION, NOT_READABLE_ERR));
                    }
            	}
            });


        } catch (IllegalArgumentException e) {
            MalformedURLException mue = new MalformedURLException("Unrecognized filesystem URL");
            mue.initCause(e);
        	throw mue;
        } catch (FileNotFoundException e) {
        	callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.IO_EXCEPTION, NOT_FOUND_ERR));
        } catch (IOException e) {
        	LOG.d(LOG_TAG, e.getLocalizedMessage());
        	callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.IO_EXCEPTION, NOT_READABLE_ERR));
        }
    }