001/**
002 *
003 * Copyright 2020 Paul Schaub
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.jivesoftware.smackx.file_metadata.provider;
018
019import java.io.IOException;
020import java.text.ParseException;
021
022import org.jivesoftware.smack.packet.XmlEnvironment;
023import org.jivesoftware.smack.parsing.SmackParsingException;
024import org.jivesoftware.smack.provider.ExtensionElementProvider;
025import org.jivesoftware.smack.util.ParserUtils;
026import org.jivesoftware.smack.xml.XmlPullParser;
027import org.jivesoftware.smack.xml.XmlPullParserException;
028import org.jivesoftware.smackx.file_metadata.element.FileMetadataElement;
029import org.jivesoftware.smackx.hashes.element.HashElement;
030import org.jivesoftware.smackx.hashes.provider.HashElementProvider;
031import org.jivesoftware.smackx.thumbnails.element.ThumbnailElement;
032import org.jivesoftware.smackx.thumbnails.provider.ThumbnailElementProvider;
033
034public class FileMetadataElementProvider extends ExtensionElementProvider<FileMetadataElement> {
035
036    @Override
037    public FileMetadataElement parse(XmlPullParser parser, int initialDepth, XmlEnvironment xmlEnvironment)
038            throws XmlPullParserException, IOException, SmackParsingException, ParseException {
039        FileMetadataElement.Builder builder = FileMetadataElement.builder();
040
041        outerloop: while (true) {
042            XmlPullParser.Event event = parser.next();
043            switch (event) {
044            case START_ELEMENT:
045                String name = parser.getName();
046                switch (name) {
047                    case FileMetadataElement.ELEMENT:
048                        parser.next();
049                        break;
050                    case FileMetadataElement.ELEM_DATE:
051                        builder.setModificationDate(ParserUtils.getDateFromNextText(parser));
052                        break;
053                    case FileMetadataElement.ELEM_DESC:
054                        String lang = ParserUtils.getXmlLang(parser);
055                        builder.addDescription(ParserUtils.getRequiredNextText(parser), lang);
056                        break;
057                    case "dimensions": // was replaced with width and height
058                        String dimensions = ParserUtils.getRequiredNextText(parser);
059                        String[] split = dimensions.split("x");
060                        if (split.length != 2) {
061                            throw new IllegalArgumentException("Invalid dimensions.");
062                        }
063                        builder.setWidth(Integer.parseInt(split[0]));
064                        builder.setHeight(Integer.parseInt(split[1]));
065                        break;
066                    case FileMetadataElement.ELEM_WIDTH:
067                        builder.setWidth(Integer.parseInt(ParserUtils.getRequiredNextText(parser)));
068                        break;
069                    case FileMetadataElement.ELEM_HEIGHT:
070                        builder.setHeight(Integer.parseInt(ParserUtils.getRequiredNextText(parser)));
071                        break;
072                    case FileMetadataElement.ELEM_LENGTH:
073                        builder.setLength(Long.parseLong(ParserUtils.getRequiredNextText(parser)));
074                        break;
075                    case FileMetadataElement.ELEM_MEDIA_TYPE:
076                        builder.setMediaType(ParserUtils.getRequiredNextText(parser));
077                        break;
078                    case FileMetadataElement.ELEM_NAME:
079                        builder.setName(ParserUtils.getRequiredNextText(parser));
080                        break;
081                    case FileMetadataElement.ELEM_SIZE:
082                        builder.setSize(Long.parseLong(ParserUtils.getRequiredNextText(parser)));
083                        break;
084                    case HashElement.ELEMENT:
085                        builder.addHash(HashElementProvider.INSTANCE.parse(parser, parser.getDepth(), xmlEnvironment));
086                        break;
087                    case ThumbnailElement.ELEMENT:
088                        ThumbnailElementProvider provider = new ThumbnailElementProvider();
089                        builder.addThumbnail(provider.parse(parser, parser.getDepth(), xmlEnvironment));
090                }
091                break;
092            case END_ELEMENT:
093                if (parser.getDepth() == initialDepth) break outerloop;
094                break;
095            default:
096                // Catch all for incomplete switch (MissingCasesInEnumSwitch) statement.
097                break;
098            }
099        }
100        return builder.build();
101    }
102}