eaf21parser.java

编辑视频文件

                String endTimeSlotId = (String) annotationParams.get(2);

                annotationRecord.setBeginTimeSlotId(beginTimeSlotId);
                annotationRecord.setEndTimeSlotId(endTimeSlotId);
            }

            if (annotType.equals(AnnotationRecord.ALIGNABLE_SVG)) {
                String svgRefId = (String) annotationParams.get(3);
                String annotValue = (String) annotationParams.get(4);

                annotationRecord.setSvgReference(svgRefId);
                annotationRecord.setValue(annotValue);
            } else { // ALIGNABLE or REFERENCE

                String annotValue = (String) annotationParams.get(3);

                annotationRecord.setValue(annotValue);
            }

            annotationArrayList.add(annotationRecord);
        }

        long duration = System.currentTimeMillis() - start;

        //	System.out.println("Extracting Annotations took " + duration + " milli seconds");
        return annotationArrayList;
    }

    /**
     * Parses a EAF v2.1 xml file.
     *
     * @param fileName the EAF v2.1 xml file that must be parsed.
     */
    private void parse(String fileName) {
        long start = System.currentTimeMillis();

        //		System.out.println("Parse : " + fileName);
        //		System.out.println("Free memory : " + Runtime.getRuntime().freeMemory());
        // only parse the same file once
        if (lastParsed.equals(fileName)) {
            return;
        }

        // (re)set everything to null for each parse
        tiers.clear();
        tierNames.clear(); // HB, 2-1-02, to store name IN ORDER
        tierAttributes.clear();
        mediaFile = "";
        linguisticTypes.clear();
        locales.clear();
        timeSlots.clear();
        timeOrder.clear();
        mediaDescriptors.clear();

        // parse the file
        lastParsed = fileName;
        currentFileName = fileName;

        try {
            saxParser.parse(fileName);
        } catch (SAXException e) {
            System.out.println("Parsing error: " + e.getMessage());
        } catch (IOException e) {
            e.printStackTrace();
        } catch (Exception e) {
            printErrorLocationInfo("Fatal(?) Error! " + e.getMessage());
        }

        long duration = System.currentTimeMillis() - start;

        //	System.out.println("Parsing took " + duration + " milli seconds");
    }

    private void println(String s) {
        if (verbose) {
            System.out.println(s);
        }
    }

    private void printErrorLocationInfo(String message) {
        System.out.println(message);
        System.out.println("Exception for " + currentFileName);
        System.out.println("Tier id " + currentTierId);
        System.out.println("Annotation id " + currentAnnotationId);
    }

    /**
     * DOCUMENT ME!
     * $Id: EAF21Parser.java,v 1.4 2005/09/15 15:35:41 hasloe Exp $
     * @author $Author: hasloe $
     * @version $Revision: 1.4 $
     */
    class EAFContentHandler implements ContentHandler {
        private Locator locator;

        /**
         * DOCUMENT ME!
         *
         * @param locator DOCUMENT ME!
         */
        public void setDocumentLocator(Locator locator) {
            this.locator = locator;
        }

        /**
         * DOCUMENT ME!
         *
         * @param prefix DOCUMENT ME!
         * @param uri DOCUMENT ME!
         */
        public void startPrefixMapping(String prefix, String uri) {
        }

        /**
         * DOCUMENT ME!
         *
         * @param prefix DOCUMENT ME!
         */
        public void endPrefixMapping(String prefix) {
        }

        /**
         * DOCUMENT ME!
         *
         * @param ch DOCUMENT ME!
         * @param start DOCUMENT ME!
         * @param end DOCUMENT ME!
         *
         * @throws SAXException DOCUMENT ME!
         */
        public void ignorableWhitespace(char[] ch, int start, int end)
            throws SAXException {
        }

        /**
         * DOCUMENT ME!
         *
         * @param name DOCUMENT ME!
         *
         * @throws SAXException DOCUMENT ME!
         */
        public void skippedEntity(String name) throws SAXException {
        }

        /**
         * DOCUMENT ME!
         *
         * @param target DOCUMENT ME!
         * @param data DOCUMENT ME!
         *
         * @throws SAXException DOCUMENT ME!
         */
        public void processingInstruction(String target, String data)
            throws SAXException {
        }

        /**
         * ContentHandler method
         *
         * @throws SAXException DOCUMENT ME!
         */
        public void startDocument() throws SAXException {
            parseError = false;
        }

        /**
         * ContentHandler method
         *
         * @throws SAXException DOCUMENT ME!
         */
        public void endDocument() throws SAXException {
        }

        /**
         * ContentHandler method
         *
         * @param nameSpaceURI DOCUMENT ME!
         * @param name DOCUMENT ME!
         * @param rawName DOCUMENT ME!
         * @param attributes DOCUMENT ME!
         *
         * @throws SAXException DOCUMENT ME!
         */
        public void startElement(String nameSpaceURI, String name,
            String rawName, Attributes attributes) throws SAXException {
            //	System.out.println("startElement called for name:" + name);
            content = "";

            if (name.equals("ANNOTATION_DOCUMENT")) {
                author = attributes.getValue("AUTHOR");
            } else if (name.equals("HEADER")) {
                // implement when dealing with MediaObject
                mediaFile = attributes.getValue("MEDIA_FILE");
                svgFile = attributes.getValue("SVG_FILE");
            } else if (name.equals("MEDIA_DESCRIPTOR")) {
                String mediaURL = attributes.getValue("MEDIA_URL");
                String mimeType = attributes.getValue("MIME_TYPE");

                MediaDescriptor md = new MediaDescriptor(mediaURL, mimeType);

                long timeOrigin = 0;

                if (attributes.getValue("TIME_ORIGIN") != null) {
                    timeOrigin = Long.parseLong(attributes.getValue(
                                "TIME_ORIGIN"));
                    md.timeOrigin = timeOrigin;
                }

                String extractedFrom = "";

                if (attributes.getValue("EXTRACTED_FROM") != null) {
                    extractedFrom = attributes.getValue("EXTRACTED_FROM");
                    md.extractedFrom = extractedFrom;
                }

                mediaDescriptors.add(md);
            } else if (name.equals("TIME_ORDER")) {
                // nothing to be done, tierOrder ArrayList already created
            } else if (name.equals("TIME_SLOT")) {
                String timeValue = String.valueOf(TimeSlot.TIME_UNALIGNED);

                if (attributes.getValue("TIME_VALUE") != null) {
                    timeValue = attributes.getValue("TIME_VALUE");
                }

                timeSlots.put(attributes.getValue("TIME_SLOT_ID"), timeValue);
                timeOrder.add(attributes.getValue("TIME_SLOT_ID"));
            } else if (name.equals("TIER")) {
                currentTierId = attributes.getValue("TIER_ID");

                // First check whether this tier already exists
                if (!tiers.containsKey(currentTierId)) {
                    // create entries in the tiers and tierAttributes HashMaps for annotations and attributes resp.
                    tiers.put(currentTierId, new HashMap());
                    tierAttributes.put(currentTierId, new HashMap());

                    // HB, 2-1-02
                    tierNames.add(currentTierId);
                }

                // store tier attributes
                HashMap attrHash = (HashMap) tierAttributes.get(currentTierId);

                if (attributes.getValue("PARTICIPANT") != null) {
                    attrHash.put("PARTICIPANT",
                        attributes.getValue("PARTICIPANT"));
                }

                attrHash.put("LINGUISTIC_TYPE_REF",
                    attributes.getValue("LINGUISTIC_TYPE_REF"));

                if (attributes.getValue("DEFAULT_LOCALE") != null) { // HB, 29 oct 02: added condition
                    attrHash.put("DEFAULT_LOCALE",
                        attributes.getValue("DEFAULT_LOCALE"));
                } else { // HB, 30 oct 02, added default case
                    attrHash.put("DEFAULT_LOCALE", "en");
                }

                if (attributes.getValue("PARENT_REF") != null) {
                    attrHash.put("PARENT_REF", attributes.getValue("PARENT_REF"));
                }
            } else if (name.equals("ALIGNABLE_ANNOTATION")) {
                currentAnnotationId = attributes.getValue("ANNOTATION_ID");

                // create new "AnnotationRecord" and add to annotations HashMap for current tier
                ((HashMap) tiers.get(currentTierId)).put(currentAnnotationId,
                    new ArrayList());

                // mark type of annotation, add start and end times to this AnnotationRecord
                String svg_ref = attributes.getValue("SVG_REF");
                ((ArrayList) ((HashMap) tiers.get(currentTierId)).get(currentAnnotationId)).add((svg_ref == null)
                    ? "alignable" : "alignable_svg");
                ((ArrayList) ((HashMap) tiers.get(currentTierId)).get(currentAnnotationId)).add(attributes.getValue(
                        "TIME_SLOT_REF1"));
                ((ArrayList) ((HashMap) tiers.get(currentTierId)).get(currentAnnotationId)).add(attributes.getValue(
                        "TIME_SLOT_REF2"));

                if (svg_ref != null) {
                    ((ArrayList) ((HashMap) tiers.get(currentTierId)).get(currentAnnotationId)).add(svg_ref);
                }
            } else if (name.equals("REF_ANNOTATION")) {
                currentAnnotationId = attributes.getValue("ANNOTATION_ID");

                // create new "AnnotationRecord" and add to annotations HashMap for current tier
                ((HashMap) tiers.get(currentTierId)).put(currentAnnotationId,
                    new ArrayList());

                // mark type of annotation, add annotation reference to this AnnotationRecord
                ((ArrayList) ((HashMap) tiers.get(currentTierId)).get(currentAnnotationId)).add(
                    "reference");
                ((ArrayList) ((HashMap) tiers.get(currentTierId)).get(currentAnnotationId)).add(attributes.getValue(
                        "ANNOTATION_REF"));

                if (attributes.getValue("PREVIOUS_ANNOTATION") != null) {
                    ((ArrayList) ((HashMap) tiers.get(currentTierId)).get(currentAnnotationId)).add(attributes.getValue(
                            "PREVIOUS_ANNOTATION"));
                } else {
                    ((ArrayList) ((HashMap) tiers.get(currentTierId)).get(currentAnnotationId)).add(
                        "");
                }
            } else if (name.equals("LINGUISTIC_TYPE")) {
                LingTypeRecord ltr = new LingTypeRecord();

                ltr.setLingTypeId(attributes.getValue("LINGUISTIC_TYPE_ID"));

                String timeAlignable = "true";

                if ((attributes.getValue("TIME_ALIGNABLE") != null) &&
                        (attributes.getValue("TIME_ALIGNABLE").equals("false"))) {
                    timeAlignable = "false";
                }

                ltr.setTimeAlignable(timeAlignable);

                String graphicReferences = "false";

                if ((attributes.getValue("GRAPHIC_REFERENCES") != null) &&
                        (attributes.getValue("GRAPHIC_REFERENCES").equals("true"))) {
                    graphicReferences = "true";
                }

                ltr.setGraphicReferences(graphicReferences);

                String stereotype = attributes.getValue("CONSTRAINTS");
                ltr.setStereoType(stereotype);

                linguisticTypes.add(ltr);
            } else if (name.equals("LOCALE")) {
                String langCode = attributes.getValue("LANGUAGE_CODE");
                String countryCode = attributes.getValue("COUNTRY_CODE");

                if (countryCode == null) {
                    countryCode = "";
                }

                String variant = attributes.getValue("VARIANT");

                if (variant == null) {
                    variant = "";
                }

                Locale l = new Locale(langCode, countryCode, variant);
                locales.add(l);
            }
        }

        //startElement

        /**
         * ContentHandler method
         *
         * @param nameSpaceURI DOCUMENT ME!
         * @param name DOCUMENT ME!
         * @param rawName DOCUMENT ME!
         *
         * @throws SAXException DOCUMENT ME!
         */
        public void endElement(String nameSpaceURI, String name, String rawName)
            throws SAXException {
            if (name.equals("ANNOTATION_VALUE")) {
                ((ArrayList) ((HashMap) tiers.get(currentTierId)).get(currentAnnotationId)).add(content);
            }
        }

        /**
         * ContentHandler method
         *
         * @param ch DOCUMENT ME!
         * @param start DOCUMENT ME!
         * @param end DOCUMENT ME!
         *
         * @throws SAXException DOCUMENT ME!
         */
        public void characters(char[] ch, int start, int end)
            throws SAXException {
            content += new String(ch, start, end);
        }
    }
}