Examples with DefaultKeyset com.blazebit.persistence.DefaultKeyset used on opensource projects

Example 1 with DefaultKeyset

use of com.blazebit.persistence.DefaultKeyset in project blaze-persistence by Blazebit.

the class KeysetPageableHandlerMethodArgumentResolver method resolveArgument.

@Override
public Mono<Object> resolveArgument(MethodParameter methodParameter, BindingContext bindingContext, ServerWebExchange serverWebExchange) {
    assertPageableUniqueness(methodParameter);
    Pageable defaultOrFallback = getDefaultFromAnnotationOrFallback(methodParameter);
    String pageString = serverWebExchange.getRequest().getQueryParams().getFirst(getParameterNameToUse(getPageParameterName(), methodParameter));
    String offsetString = serverWebExchange.getRequest().getQueryParams().getFirst(getParameterNameToUse(getOffsetParameterName(), methodParameter));
    String pageSizeString = serverWebExchange.getRequest().getQueryParams().getFirst(getParameterNameToUse(getSizeParameterName(), methodParameter));
    boolean pageAndSizeGiven = (StringUtils.hasText(pageString) || StringUtils.hasText(offsetString)) && StringUtils.hasText(pageSizeString);
    if (!pageAndSizeGiven && defaultOrFallback == null) {
        return null;
    }
    int pageSize = StringUtils.hasText(pageSizeString) ? parseAndApplyBoundaries(pageSizeString, getMaxPageSize(), false) : defaultOrFallback.getPageSize();
    // Limit lower bound
    pageSize = pageSize < 1 ? defaultOrFallback.getPageSize() : pageSize;
    // Limit upper bound
    pageSize = pageSize > getMaxPageSize() ? getMaxPageSize() : pageSize;
    int offset;
    if (StringUtils.hasText(offsetString)) {
        offset = parseAndApplyBoundaries(offsetString, Integer.MAX_VALUE, false);
    } else if (StringUtils.hasText(pageString)) {
        offset = pageSize * parseAndApplyBoundaries(pageString, Integer.MAX_VALUE, true);
    } else {
        offset = pageSize * defaultOrFallback.getPageNumber();
    }
    org.springframework.data.domain.Sort sort = (org.springframework.data.domain.Sort) sortResolver.resolveArgument(methodParameter, bindingContext, serverWebExchange).block();
    // Default if necessary and default configured
    sort = sort == UNSORTED && defaultOrFallback != null ? defaultOrFallback.getSort() : sort;
    KeysetPage keysetPage = null;
    Iterator<org.springframework.data.domain.Sort.Order> iterator;
    if (sort != null && (iterator = sort.iterator()).hasNext()) {
        KeysetConfig keysetConfig = methodParameter.getParameterAnnotation(KeysetConfig.class);
        Class<?> domainClass = keysetConfig.keysetClass();
        if (domainClass == void.class) {
            domainClass = keysetConfig.value();
        }
        if (domainClass == void.class) {
            Method annotatedMethod = methodParameter.getMethod();
            throw new IllegalStateException(String.format(INVALID_KEYSET_DOMAIN_CLASS, annotatedMethod));
        }
        String previousOffsetName = getParameterName(keysetConfig.previousOffsetName(), getParameterNameToUse(getPreviousOffsetParameterName(), methodParameter));
        String previousOffsetString = serverWebExchange.getRequest().getQueryParams().getFirst(previousOffsetName);
        String previousPageName = getParameterName(keysetConfig.previousPageName(), getParameterNameToUse(getPreviousPageParameterName(), methodParameter));
        String previousPageString = serverWebExchange.getRequest().getQueryParams().getFirst(previousPageName);
        if (StringUtils.hasText(previousOffsetString) || StringUtils.hasText(previousPageString)) {
            String previousPageSizeName = getParameterName(keysetConfig.previousPageSizeName(), getParameterNameToUse(getPreviousSizeParameterName(), methodParameter));
            String previousPageSizeString = serverWebExchange.getRequest().getQueryParams().getFirst(previousPageSizeName);
            int previousPageSize = StringUtils.hasText(previousPageSizeString) ? parseAndApplyBoundaries(previousPageSizeString, getMaxPageSize(), false) : pageSize;
            int previousOffset;
            if (StringUtils.hasText(previousOffsetString)) {
                previousOffset = parseAndApplyBoundaries(previousOffsetString, Integer.MAX_VALUE, false);
            } else {
                int previousPage = parseAndApplyBoundaries(previousPageString, Integer.MAX_VALUE, true);
                previousOffset = previousPage * previousPageSize;
            }
            String lowestName = getParameterName(keysetConfig.lowestName(), getParameterNameToUse(getLowestParameterName(), methodParameter));
            String lowestString = serverWebExchange.getRequest().getQueryParams().getFirst(lowestName);
            String highestName = getParameterName(keysetConfig.highestName(), getParameterNameToUse(getHighestParameterName(), methodParameter));
            String highestString = serverWebExchange.getRequest().getQueryParams().getFirst(highestName);
            if (StringUtils.hasText(lowestString) && StringUtils.hasText(highestString)) {
                List<Serializable> lowest = new ArrayList<>();
                List<Serializable> highest = new ArrayList<>();
                JsonNode lowestObject;
                JsonNode highestObject;
                try {
                    lowestObject = mapper.readTree(lowestString);
                } catch (IOException ex) {
                    throw new IllegalArgumentException("Invalid lowest object!", ex);
                }
                try {
                    highestObject = mapper.readTree(highestString);
                } catch (IOException ex) {
                    throw new IllegalArgumentException("Invalid highest object!", ex);
                }
                while (iterator.hasNext()) {
                    org.springframework.data.domain.Sort.Order o = iterator.next();
                    JsonNode low = lowestObject;
                    JsonNode high = highestObject;
                    String[] propertyParts = o.getProperty().split("\\.");
                    Class<? extends Serializable> propertyType = getPropertyType(domainClass, o.getProperty());
                    for (int i = 0; i < propertyParts.length; i++) {
                        low = low == null ? null : low.get(propertyParts[i]);
                        high = high == null ? null : high.get(propertyParts[i]);
                    }
                    lowest.add(low == null ? null : convert(low, propertyType));
                    highest.add(high == null ? null : convert(high, propertyType));
                }
                keysetPage = new DefaultKeysetPage(previousOffset, previousPageSize, new DefaultKeyset(lowest.toArray(new Serializable[lowest.size()])), new DefaultKeyset(highest.toArray(new Serializable[highest.size()])));
            }
        }
    }
    return Mono.just(new KeysetPageRequest(keysetPage, sort, offset, pageSize));
}

Example 2 with DefaultKeyset

use of com.blazebit.persistence.DefaultKeyset in project blaze-persistence by Blazebit.

the class GraphQLEntityViewSupport method extractKeysetPage.

/**
 * Extracts the {@link KeysetPage} from the page size and offset,
 * as well as deserializing before or after cursors.
 *
 * @param first The GraphQL relay first parameter
 * @param last The GraphQL relay last parameter
 * @param beforeCursor The GraphQL relay before cursor
 * @param afterCursor The GraphQL relay after cursor
 * @return the {@link KeysetPage} or <code>null</code>
 */
public KeysetPage extractKeysetPage(Integer first, Integer last, String beforeCursor, String afterCursor) {
    if (first == null && last == null && beforeCursor == null && afterCursor == null) {
        return null;
    } else {
        KeysetPage keysetPage;
        if (beforeCursor != null) {
            if (afterCursor != null) {
                throw new RuntimeException("Can't provide both beforeCursor and afterCursor!");
            }
            GraphQLCursor cursor = deserialize(beforeCursor);
            keysetPage = new DefaultKeysetPage(cursor.getOffset(), cursor.getPageSize(), new DefaultKeyset(cursor.getTuple()), null);
        } else if (afterCursor != null) {
            if (last != null) {
                // Using an after cursor with last does not make sense, so skip using the cursor
                // The only problem with that is, that the cursor could refer to the last element
                // If that is the case, we would still get a result, which is IMO an edge case and can be ignored
                keysetPage = new DefaultKeysetPage(0, last, new DefaultKeyset(null), null);
            } else {
                GraphQLCursor cursor = deserialize(afterCursor);
                keysetPage = new DefaultKeysetPage(cursor.getOffset(), cursor.getPageSize(), null, new DefaultKeyset(cursor.getTuple()));
            }
        } else if (first != null) {
            keysetPage = new DefaultKeysetPage(0, first, null, null);
        } else {
            // Keyset with empty tuple is a special case for traversing the result list in reverse order
            keysetPage = new DefaultKeysetPage(0, last, new DefaultKeyset(null), null);
        }
        return keysetPage;
    }
}

Example 3 with DefaultKeyset

use of com.blazebit.persistence.DefaultKeyset in project blaze-persistence by Blazebit.

the class LazyKeysetLink method initialize.

@Override
public void initialize(List<OrderByExpression> orderByExpressions) {
    Serializable[] tuple = new Serializable[orderByExpressions.size()];
    for (int i = 0; i < tuple.length; i++) {
        String expressionString = orderByExpressions.get(0).getExpression().toString();
        Object value = keysetValues.get(expressionString);
        if (value == null) {
            if (!keysetValues.containsKey(expressionString)) {
                throw new IllegalArgumentException("The keyset provided [" + keysetValues + "] does not contain an entry for the order by expression: " + expressionString);
            }
            tuple[i] = null;
        } else {
            if (!(value instanceof Serializable)) {
                throw new IllegalArgumentException("The keyset value [" + value + "] provided for the order by expression [" + expressionString + "] is not an instance of java.io.Serializable!");
            }
            tuple[i] = (Serializable) value;
        }
    }
    keyset = new DefaultKeyset(tuple);
    validate(keyset, orderByExpressions);
}

Example 4 with DefaultKeyset

use of com.blazebit.persistence.DefaultKeyset in project blaze-persistence by Blazebit.

the class KeysetPageableParamConverter method fromString.

@Override
public Pageable fromString(String value) {
    MultivaluedMap<String, String> queryParameters = requestUriInfo.getQueryParameters();
    Pageable defaultOrFallback = pageableConfiguration.getFallbackPageable();
    String offsetString = queryParameters.getFirst(pageableConfiguration.getPrefix() + pageableConfiguration.getOffsetParameterName());
    String pageString = queryParameters.getFirst(pageableConfiguration.getPrefix() + pageableConfiguration.getPageParameterName());
    String pageSizeString = queryParameters.getFirst(pageableConfiguration.getPrefix() + pageableConfiguration.getSizeParameterName());
    boolean pageAndSizeGiven = (!StringUtils.isEmpty(pageString) || !StringUtils.isEmpty(offsetString)) && !StringUtils.isEmpty(pageSizeString);
    if (!pageAndSizeGiven && defaultOrFallback == null) {
        return null;
    }
    int maxPageSize = pageableConfiguration.getMaxPageSize();
    int pageSize = !StringUtils.isEmpty(pageSizeString) ? parseAndApplyBoundaries(pageSizeString, maxPageSize, false) : defaultOrFallback.getPageSize();
    // Limit lower bound
    pageSize = pageSize < 1 ? defaultOrFallback.getPageSize() : pageSize;
    // Limit upper bound
    pageSize = pageSize > maxPageSize ? maxPageSize : pageSize;
    int offset;
    if (!StringUtils.isEmpty(offsetString)) {
        offset = parseAndApplyBoundaries(pageString, Integer.MAX_VALUE, false);
    } else if (!StringUtils.isEmpty(pageString)) {
        offset = pageSize * parseAndApplyBoundaries(pageString, Integer.MAX_VALUE, true);
    } else {
        offset = pageSize * defaultOrFallback.getPageNumber();
    }
    Sort sort = resolveSort(queryParameters.get(pageableConfiguration.getSortParameterName()));
    // Default if necessary and default configured
    sort = sort == null && defaultOrFallback != null ? defaultOrFallback.getSort() : sort;
    KeysetPage keysetPage = null;
    Iterator<Sort.Order> iterator;
    if (keysetClass != null) {
        if (sort != null && (iterator = sort.iterator()).hasNext()) {
            String previousOffsetString = queryParameters.getFirst(keysetPageableConfiguration.getPrefix() + keysetPageableConfiguration.getPreviousOffsetParameterName());
            String previousPageString = queryParameters.getFirst(keysetPageableConfiguration.getPrefix() + keysetPageableConfiguration.getPreviousPageParameterName());
            if (!StringUtils.isEmpty(previousOffsetString) || !StringUtils.isEmpty(previousPageString)) {
                String previousPageSizeString = queryParameters.getFirst(keysetPageableConfiguration.getPrefix() + keysetPageableConfiguration.getPreviousSizeParameterName());
                int previousPageSize = StringUtils.isEmpty(previousPageSizeString) ? pageSize : parseAndApplyBoundaries(previousPageSizeString, maxPageSize, false);
                int previousOffset;
                if (!StringUtils.isEmpty(previousOffsetString)) {
                    previousOffset = parseAndApplyBoundaries(previousOffsetString, Integer.MAX_VALUE, false);
                } else {
                    int previousPage = parseAndApplyBoundaries(previousPageString, Integer.MAX_VALUE, true);
                    previousOffset = previousPage * previousPageSize;
                }
                String lowestString = queryParameters.getFirst(keysetPageableConfiguration.getPrefix() + keysetPageableConfiguration.getLowestParameterName());
                String highestString = queryParameters.getFirst(keysetPageableConfiguration.getPrefix() + keysetPageableConfiguration.getHighestParameterName());
                if (!StringUtils.isEmpty(lowestString) && !StringUtils.isEmpty(highestString)) {
                    List<Serializable> lowest = new ArrayList<>();
                    List<Serializable> highest = new ArrayList<>();
                    JsonNode lowestObject;
                    JsonNode highestObject;
                    try {
                        lowestObject = mapper.readTree(lowestString);
                    } catch (IOException ex) {
                        throw new IllegalArgumentException("Invalid lowest object!", ex);
                    }
                    try {
                        highestObject = mapper.readTree(highestString);
                    } catch (IOException ex) {
                        throw new IllegalArgumentException("Invalid highest object!", ex);
                    }
                    while (iterator.hasNext()) {
                        Sort.Order o = iterator.next();
                        JsonNode low = lowestObject;
                        JsonNode high = highestObject;
                        String[] propertyParts = o.getPath().split("\\.");
                        Class<? extends Serializable> propertyType = getPropertyType(keysetClass, o.getPath());
                        for (int i = 0; i < propertyParts.length; i++) {
                            low = low == null ? null : low.get(propertyParts[i]);
                            high = high == null ? null : high.get(propertyParts[i]);
                        }
                        lowest.add(low == null ? null : convert(low, propertyType));
                        highest.add(high == null ? null : convert(high, propertyType));
                    }
                    keysetPage = new DefaultKeysetPage(previousOffset, previousPageSize, new DefaultKeyset(lowest.toArray(new Serializable[lowest.size()])), new DefaultKeyset(highest.toArray(new Serializable[highest.size()])));
                }
            }
        }
        return new KeysetPageRequest(keysetPage, sort, offset, pageSize);
    }
    return new PageRequest(sort, offset, pageSize);
}

Example 5 with DefaultKeyset

use of com.blazebit.persistence.DefaultKeyset in project blaze-persistence by Blazebit.

the class KeysetPageableHandlerMethodArgumentResolver method resolveArgument.

@Override
public KeysetPageable resolveArgument(MethodParameter methodParameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) {
    assertPageableUniqueness(methodParameter);
    Pageable defaultOrFallback = getDefaultFromAnnotationOrFallback(methodParameter);
    String pageString = webRequest.getParameter(getParameterNameToUse(getPageParameterName(), methodParameter));
    String offsetString = webRequest.getParameter(getParameterNameToUse(getOffsetParameterName(), methodParameter));
    String pageSizeString = webRequest.getParameter(getParameterNameToUse(getSizeParameterName(), methodParameter));
    boolean pageAndSizeGiven = (StringUtils.hasText(pageString) || StringUtils.hasText(offsetString)) && StringUtils.hasText(pageSizeString);
    if (!pageAndSizeGiven && defaultOrFallback == null) {
        return null;
    }
    int pageSize = StringUtils.hasText(pageSizeString) ? parseAndApplyBoundaries(pageSizeString, getMaxPageSize(), false) : defaultOrFallback.getPageSize();
    // Limit lower bound
    pageSize = pageSize < 1 ? defaultOrFallback.getPageSize() : pageSize;
    // Limit upper bound
    pageSize = pageSize > getMaxPageSize() ? getMaxPageSize() : pageSize;
    int offset;
    if (StringUtils.hasText(offsetString)) {
        offset = parseAndApplyBoundaries(offsetString, Integer.MAX_VALUE, false);
    } else if (StringUtils.hasText(pageString)) {
        offset = pageSize * parseAndApplyBoundaries(pageString, Integer.MAX_VALUE, true);
    } else {
        offset = pageSize * defaultOrFallback.getPageNumber();
    }
    org.springframework.data.domain.Sort sort = sortResolver.resolveArgument(methodParameter, mavContainer, webRequest, binderFactory);
    // Default if necessary and default configured
    sort = sort == UNSORTED && defaultOrFallback != null ? defaultOrFallback.getSort() : sort;
    KeysetPage keysetPage = null;
    Iterator<org.springframework.data.domain.Sort.Order> iterator;
    if (sort != null && (iterator = sort.iterator()).hasNext()) {
        KeysetConfig keysetConfig = methodParameter.getParameterAnnotation(KeysetConfig.class);
        Class<?> domainClass = keysetConfig.keysetClass();
        if (domainClass == void.class) {
            domainClass = keysetConfig.value();
        }
        if (domainClass == void.class) {
            Method annotatedMethod = methodParameter.getMethod();
            throw new IllegalStateException(String.format(INVALID_KEYSET_DOMAIN_CLASS, annotatedMethod));
        }
        String previousOffsetName = getParameterName(keysetConfig.previousOffsetName(), getParameterNameToUse(getPreviousOffsetParameterName(), methodParameter));
        String previousOffsetString = webRequest.getParameter(previousOffsetName);
        String previousPageName = getParameterName(keysetConfig.previousPageName(), getParameterNameToUse(getPreviousPageParameterName(), methodParameter));
        String previousPageString = webRequest.getParameter(previousPageName);
        if (StringUtils.hasText(previousOffsetString) || StringUtils.hasText(previousPageString)) {
            String previousPageSizeName = getParameterName(keysetConfig.previousPageSizeName(), getParameterNameToUse(getPreviousSizeParameterName(), methodParameter));
            String previousPageSizeString = webRequest.getParameter(previousPageSizeName);
            int previousPageSize = StringUtils.hasText(previousPageSizeString) ? parseAndApplyBoundaries(previousPageSizeString, getMaxPageSize(), false) : pageSize;
            int previousOffset;
            if (StringUtils.hasText(previousOffsetString)) {
                previousOffset = parseAndApplyBoundaries(previousOffsetString, Integer.MAX_VALUE, false);
            } else {
                int previousPage = parseAndApplyBoundaries(previousPageString, Integer.MAX_VALUE, true);
                previousOffset = previousPage * previousPageSize;
            }
            String lowestName = getParameterName(keysetConfig.lowestName(), getParameterNameToUse(getLowestParameterName(), methodParameter));
            String lowestString = webRequest.getParameter(lowestName);
            String highestName = getParameterName(keysetConfig.highestName(), getParameterNameToUse(getHighestParameterName(), methodParameter));
            String highestString = webRequest.getParameter(highestName);
            if (StringUtils.hasText(lowestString) && StringUtils.hasText(highestString)) {
                List<Serializable> lowest = new ArrayList<>();
                List<Serializable> highest = new ArrayList<>();
                JsonNode lowestObject;
                JsonNode highestObject;
                try {
                    lowestObject = mapper.readTree(lowestString);
                } catch (IOException ex) {
                    throw new IllegalArgumentException("Invalid lowest object!", ex);
                }
                try {
                    highestObject = mapper.readTree(highestString);
                } catch (IOException ex) {
                    throw new IllegalArgumentException("Invalid highest object!", ex);
                }
                while (iterator.hasNext()) {
                    org.springframework.data.domain.Sort.Order o = iterator.next();
                    JsonNode low = lowestObject;
                    JsonNode high = highestObject;
                    String[] propertyParts = o.getProperty().split("\\.");
                    Class<? extends Serializable> propertyType = getPropertyType(domainClass, o.getProperty());
                    for (int i = 0; i < propertyParts.length; i++) {
                        low = low == null ? null : low.get(propertyParts[i]);
                        high = high == null ? null : high.get(propertyParts[i]);
                    }
                    lowest.add(low == null ? null : convert(low, propertyType));
                    highest.add(high == null ? null : convert(high, propertyType));
                }
                keysetPage = new DefaultKeysetPage(previousOffset, previousPageSize, new DefaultKeyset(lowest.toArray(new Serializable[lowest.size()])), new DefaultKeyset(highest.toArray(new Serializable[highest.size()])));
            }
        }
    }
    return new KeysetPageRequest(keysetPage, sort, offset, pageSize);
}