Examples with FileResolver com.alibaba.otter.shared.etl.extend.fileresolver.FileResolver used on opensource projects

Example 1 with FileResolver

use of com.alibaba.otter.shared.etl.extend.fileresolver.FileResolver in project otter by alibaba.

the class FileExtractor method doFileExtract.

/**
     * 返回这批变更数据对应的FileInfo.
     * 
     * @param rowBatch
     * @return
     */
private List<FileData> doFileExtract(RowBatch rowBatch) {
    List<FileData> fileDatas = new ArrayList<FileData>();
    // 处理数据
    Pipeline pipeline = getPipeline(rowBatch.getIdentity().getPipelineId());
    List<EventData> eventDatas = rowBatch.getDatas();
    for (EventData eventData : eventDatas) {
        if (eventData.getEventType().isDdl()) {
            continue;
        }
        List<DataMediaPair> dataMediaPairs = ConfigHelper.findDataMediaPairByMediaId(pipeline, eventData.getTableId());
        if (dataMediaPairs == null) {
            throw new ExtractException("ERROR ## the dataMediaId = " + eventData.getTableId() + " dataMediaPair is null,please check");
        }
        for (DataMediaPair dataMediaPair : dataMediaPairs) {
            if (dataMediaPair.getResolverData() == null || dataMediaPair.getResolverData().getExtensionDataType() == null || (dataMediaPair.getResolverData().getExtensionDataType().isClazz() && StringUtils.isBlank(dataMediaPair.getResolverData().getClazzPath())) || (dataMediaPair.getResolverData().getExtensionDataType().isSource() && StringUtils.isBlank(dataMediaPair.getResolverData().getSourceText()))) {
                continue;
            }
            FileResolver fileResolver = null;
            if (dataMediaPair.getResolverData() != null) {
                fileResolver = extensionFactory.getExtension(FileResolver.class, dataMediaPair.getResolverData());
            } else {
                continue;
            }
            if (fileResolver == null) {
                throw new ExtractException("ERROR ## the dataMediaId = " + eventData.getTableId() + " the fileResolver className  = " + dataMediaPair.getResolverData().getClazzPath() + " is null ,please check the class");
            }
            if (fileResolver instanceof RemoteDirectoryFetcherAware) {
                RemoteDirectoryFetcherAware remoteDirectoryFetcherAware = (RemoteDirectoryFetcherAware) fileResolver;
                remoteDirectoryFetcherAware.setRemoteDirectoryFetcher(arandaRemoteDirectoryFetcher);
            }
            List<FileData> singleRowFileDatas = getSingleRowFileInfos(dataMediaPair.getId(), fileResolver, eventData);
            // 做一下去重处理
            for (FileData data : singleRowFileDatas) {
                if (!fileDatas.contains(data)) {
                    fileDatas.add(data);
                }
            }
        }
    }
    // 判断是否需要进行图片重复同步检查
    if (pipeline.getParameters().getFileDetect()) {
        doFileDetectCollector(pipeline, fileDatas);
    }
    return fileDatas;
}