@Override public void enhance(UriComponentsBuilder builder, MethodParameter parameter, Object value) { if (value instanceof Pageable) { pagingResolver.enhance(builder, parameter, value); } else if (value instanceof Sort) { sortResolver.enhance(builder, parameter, value); } }
@Override public TemplateVariables getPaginationTemplateVariables(MethodParameter parameter, UriComponents components) { return pagingResolver.getPaginationTemplateVariables(parameter, components); }
/** * Creates a new {@link PagedResourcesAssembler} using the given {@link PageableHandlerMethodArgumentResolver} and * base URI. If the former is {@literal null}, a default one will be created. If the latter is {@literal null}, calls * to {@link #toResource(Page)} will use the current request's URI to build the relevant previous and next links. * * @param resolver can be {@literal null}. * @param baseUri can be {@literal null}. */ public PagedResourcesAssembler(@Nullable HateoasPageableHandlerMethodArgumentResolver resolver, @Nullable UriComponents baseUri) { this.pageableResolver = resolver == null ? new HateoasPageableHandlerMethodArgumentResolver() : resolver; this.baseUri = Optional.ofNullable(baseUri); }
@Override public void enhance(UriComponentsBuilder builder, @Nullable MethodParameter parameter, Object value) { Assert.notNull(builder, "UriComponentsBuilder must not be null!"); if (!(value instanceof Pageable)) { return; } Pageable pageable = (Pageable) value; if (pageable.isUnpaged()) { return; } String pagePropertyName = getParameterNameToUse(getPageParameterName(), parameter); String sizePropertyName = getParameterNameToUse(getSizeParameterName(), parameter); int pageNumber = pageable.getPageNumber(); builder.replaceQueryParam(pagePropertyName, isOneIndexedParameters() ? pageNumber + 1 : pageNumber); builder.replaceQueryParam(sizePropertyName, pageable.getPageSize() <= getMaxPageSize() ? pageable.getPageSize() : getMaxPageSize()); this.sortResolver.enhance(builder, parameter, pageable.getSort()); }
/** * Returns the template variable for the pagination parameters. * * @param parameter can be {@literal null}. * @return * @since 1.7 */ public TemplateVariables getPaginationTemplateVariables(MethodParameter parameter, UriComponents template) { String pagePropertyName = getParameterNameToUse(getPageParameterName(), parameter); String sizePropertyName = getParameterNameToUse(getSizeParameterName(), parameter); List<TemplateVariable> names = new ArrayList<>(); MultiValueMap<String, String> queryParameters = template.getQueryParams(); boolean append = !queryParameters.isEmpty(); for (String propertyName : Arrays.asList(pagePropertyName, sizePropertyName)) { if (!queryParameters.containsKey(propertyName)) { VariableType type = append ? REQUEST_PARAM_CONTINUED : REQUEST_PARAM; String description = String.format("pagination.%s.description", propertyName); names.add(new TemplateVariable(propertyName, type, description)); } } TemplateVariables pagingVariables = new TemplateVariables(names); return pagingVariables.concat(sortResolver.getSortTemplateVariables(parameter, template)); }
/** * Creates a new {@link HateoasPageableHandlerMethodArgumentResolver} using the given * {@link HateoasSortHandlerMethodArgumentResolver}.. * * @param sortResolver */ public HateoasPageableHandlerMethodArgumentResolver(@Nullable HateoasSortHandlerMethodArgumentResolver sortResolver) { super(getDefaultedSortResolver(sortResolver)); this.sortResolver = getDefaultedSortResolver(sortResolver); }
@Bean public HateoasPageableHandlerMethodArgumentResolver pageableResolver() { return new HateoasPageableHandlerMethodArgumentResolver(sortResolver()); }
@Bean public HateoasPageableHandlerMethodArgumentResolver pageableResolver() { return new HateoasPageableHandlerMethodArgumentResolver(sortResolver()); }
@Override public void enhance(UriComponentsBuilder builder, MethodParameter parameter, Object value) { if (value instanceof Pageable) { pagingResolver.enhance(builder, parameter, value); } else if (value instanceof Sort) { sortResolver.enhance(builder, parameter, value); } }
@Override public TemplateVariables getPaginationTemplateVariables(MethodParameter parameter, UriComponents components) { return pagingResolver.getPaginationTemplateVariables(parameter, components); }
@Bean public HateoasPageableHandlerMethodArgumentResolver pageableResolver() { return new HateoasPageableHandlerMethodArgumentResolver(sortResolver()); }
/** * Creates a {@link Link} with the given rel that will be based on the given {@link UriTemplate} but enriched with the * values of the given {@link Pageable} (if not {@literal null}). * * @param base must not be {@literal null}. * @param pageable can be {@literal null} * @param rel must not be {@literal null} or empty. * @return */ private Link createLink(UriTemplate base, Pageable pageable, String rel) { UriComponentsBuilder builder = fromUri(base.expand()); pageableResolver.enhance(builder, getMethodParameter(), pageable); return new Link(new UriTemplate(builder.build().toString()), rel); }
@Bean public HateoasPageableHandlerMethodArgumentResolver pageableResolver() { return new HateoasPageableHandlerMethodArgumentResolver(sortResolver()); }
@Bean @Override public HateoasPageableHandlerMethodArgumentResolver pageableResolver() { HateoasPageableHandlerMethodArgumentResolver pageableResolver = new HateoasPageableHandlerMethodArgumentResolver( sortResolver()); customizePageableResolver(pageableResolver); return pageableResolver; }