Examples with ContrastStatistics org.apache.tika.eval.tokens.ContrastStatistics used on opensource projects

Example 1 with ContrastStatistics

use of org.apache.tika.eval.tokens.ContrastStatistics in project tika by apache.

the class ExtractComparer method compareFiles.

//protected for testing, should find better way so that this can be private!
protected void compareFiles(EvalFilePaths fpsA, EvalFilePaths fpsB) throws IOException {
    ExtractReaderException.TYPE extractExceptionA = null;
    ExtractReaderException.TYPE extractExceptionB = null;
    List<Metadata> metadataListA = null;
    if (extractExceptionA == null) {
        try {
            metadataListA = extractReader.loadExtract(fpsA.getExtractFile());
        } catch (ExtractReaderException e) {
            extractExceptionA = e.getType();
        }
    }
    List<Metadata> metadataListB = null;
    try {
        metadataListB = extractReader.loadExtract(fpsB.getExtractFile());
    } catch (ExtractReaderException e) {
        extractExceptionB = e.getType();
    }
    //array indices for those metadata items handled in B
    Set<Integer> handledB = new HashSet<>();
    String containerID = Integer.toString(ID.getAndIncrement());
    //container table
    Map<Cols, String> contData = new HashMap<>();
    contData.put(Cols.CONTAINER_ID, containerID);
    contData.put(Cols.FILE_PATH, fpsA.getRelativeSourceFilePath().toString());
    long srcFileLength = getSourceFileLength(metadataListA, metadataListB);
    contData.put(Cols.LENGTH, srcFileLength > NON_EXISTENT_FILE_LENGTH ? Long.toString(srcFileLength) : "");
    contData.put(Cols.FILE_EXTENSION, FilenameUtils.getExtension(fpsA.getRelativeSourceFilePath().getFileName().toString()));
    long extractFileLengthA = getFileLength(fpsA.getExtractFile());
    contData.put(Cols.EXTRACT_FILE_LENGTH_A, extractFileLengthA > NON_EXISTENT_FILE_LENGTH ? Long.toString(extractFileLengthA) : "");
    long extractFileLengthB = getFileLength(fpsB.getExtractFile());
    contData.put(Cols.EXTRACT_FILE_LENGTH_B, extractFileLengthB > NON_EXISTENT_FILE_LENGTH ? Long.toString(extractFileLengthB) : "");
    writer.writeRow(COMPARISON_CONTAINERS, contData);
    if (extractExceptionA != null) {
        writeExtractException(EXTRACT_EXCEPTION_TABLE_A, containerID, fpsA.getRelativeSourceFilePath().toString(), extractExceptionA);
    }
    if (extractExceptionB != null) {
        writeExtractException(EXTRACT_EXCEPTION_TABLE_B, containerID, fpsB.getRelativeSourceFilePath().toString(), extractExceptionB);
    }
    if (metadataListA == null && metadataListB == null) {
        return;
    }
    List<Integer> numAttachmentsA = countAttachments(metadataListA);
    List<Integer> numAttachmentsB = countAttachments(metadataListB);
    //now get that metadata
    if (metadataListA != null) {
        for (int i = 0; i < metadataListA.size(); i++) {
            //the first file should have the same id as the container id
            String fileId = (i == 0) ? containerID : Integer.toString(ID.getAndIncrement());
            Metadata metadataA = metadataListA.get(i);
            Metadata metadataB = null;
            //TODO: shouldn't be fileA!!!!
            writeProfileData(fpsA, i, metadataA, fileId, containerID, numAttachmentsA, PROFILES_A);
            writeExceptionData(fileId, metadataA, EXCEPTION_TABLE_A);
            int matchIndex = getMatch(i, metadataListA, metadataListB);
            if (matchIndex > -1 && !handledB.contains(matchIndex)) {
                metadataB = metadataListB.get(matchIndex);
                handledB.add(matchIndex);
            }
            if (metadataB != null) {
                writeProfileData(fpsB, i, metadataB, fileId, containerID, numAttachmentsB, PROFILES_B);
                writeExceptionData(fileId, metadataB, EXCEPTION_TABLE_B);
            }
            writeEmbeddedFilePathData(i, fileId, metadataA, metadataB);
            //prep the token counting
            tokenCounter.clear(FIELD_A);
            tokenCounter.clear(FIELD_B);
            //write content
            try {
                writeContentData(fileId, metadataA, FIELD_A, CONTENTS_TABLE_A);
                writeContentData(fileId, metadataB, FIELD_B, CONTENTS_TABLE_B);
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
            //now run comparisons
            if (tokenCounter.getTokenStatistics(FIELD_A).getTotalTokens() > 0 && tokenCounter.getTokenStatistics(FIELD_B).getTotalTokens() > 0) {
                Map<Cols, String> data = new HashMap<>();
                data.put(Cols.ID, fileId);
                ContrastStatistics contrastStatistics = tokenContraster.calculateContrastStatistics(tokenCounter.getTokens(FIELD_A), tokenCounter.getTokenStatistics(FIELD_A), tokenCounter.getTokens(FIELD_B), tokenCounter.getTokenStatistics(FIELD_B));
                writeContrasts(data, contrastStatistics);
                writer.writeRow(CONTENT_COMPARISONS, data);
            }
        }
    }
    //that haven't yet been handled.
    if (metadataListB != null) {
        for (int i = 0; i < metadataListB.size(); i++) {
            if (handledB.contains(i)) {
                continue;
            }
            Metadata metadataB = metadataListB.get(i);
            //the first file should have the same id as the container id
            String fileId = (i == 0) ? containerID : Integer.toString(ID.getAndIncrement());
            writeProfileData(fpsB, i, metadataB, fileId, containerID, numAttachmentsB, PROFILES_B);
            writeEmbeddedFilePathData(i, fileId, null, metadataB);
            writeExceptionData(fileId, metadataB, EXCEPTION_TABLE_B);
            //prep the token counting
            tokenCounter.clear(FIELD_B);
            //write content
            try {
                writeContentData(fileId, metadataB, FIELD_B, CONTENTS_TABLE_B);
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
    }
}