Java FilterExpression类代码示例

import org.apache.olingo.odata2.api.uri.expression.FilterExpression; //导入依赖的package包/类
@Test
public void readOptimizedFilter() throws Exception {
  GetEntitySetUriInfo uriInfo = createMockedUriInfo("Rooms");
  Edm edm = EdmMock.createMockEdm();

  FilterExpression exp = UriParserImpl.parseFilter(edm, edm.getEntityType("RefScenario", "Room"), "Version gt 105");
  Mockito.when(uriInfo.getFilter()).thenReturn(exp);

  List<Room> results = createRooms(1, 10);
  ReadResult<Room> readResult = ReadResult.forResult(results).filterApplied().build();
  Mockito.when(mockedDataSource.readData(Mockito.any(EdmEntitySet.class), Mockito.any(ReadOptions.class)))
      .thenReturn((ReadResult)readResult);

  ODataResponse result = dataSourceProcessor.readEntitySet(uriInfo, "application/json");

  StringHelper.Stream resultStream = StringHelper.toStream(result.getEntityAsStream());
  List<LinkedTreeMap<?, ?>> parsedResults = JsonHelper.getResults(resultStream.asString());
  Assert.assertEquals(10, parsedResults.size());
  Assert.assertEquals("Room with id: 1", parsedResults.get(0).get("Name"));
  Assert.assertEquals("Room with id: 9", parsedResults.get(9).get("Name"));
}
 

import org.apache.olingo.odata2.api.uri.expression.FilterExpression; //导入依赖的package包/类
public List<Product> getProducts(User user, String uuid,
      FilterExpression filter_expr, OrderByExpression order_expr, int skip,
      int top) throws ExceptionVisitExpression, ODataApplicationException
{
   ProductSQLVisitor expV = new ProductSQLVisitor();
   Object visit_result = null;

   if (filter_expr != null)
   {
      visit_result = filter_expr.accept(expV);
   }
   if (order_expr != null)
   {
      visit_result = order_expr.accept(expV);
   }

   return productService.getProducts((DetachedCriteria) visit_result, uuid,
         skip, top);
}
 

import org.apache.olingo.odata2.api.uri.expression.FilterExpression; //导入依赖的package包/类
public List<User> getUsers(
      FilterExpression filter_expr, OrderByExpression order_expr, int skip,
      int top) throws ExceptionVisitExpression, ODataApplicationException
{
   UserSQLVisitor expV = new UserSQLVisitor();
   Object visit = null;
   if (filter_expr != null)
   {
      visit = filter_expr.accept(expV);
   }
   if (order_expr != null)
   {
      visit = order_expr.accept(expV);
   }
   return userService.getUsers((DetachedCriteria) visit, skip, top);
}
 

import org.apache.olingo.odata2.api.uri.expression.FilterExpression; //导入依赖的package包/类
/**
 * Parse an OData filter expression and return a JPA predicate
 * 
 * @param oDataFilter OData filter string e.g. "displayName eq 'Test' and version = 1"
 * @return
 */
public Predicate parseFilterExpression(CriteriaBuilder cb, Root<T> table, String oDataFilter)
{
	if (logger != null && logger.isDebugEnabled())
		logger.debug(LOG_TAG, "ODataFilterToJpaQueryBuilder.parseFilterExpression \"" + oDataFilter + "\"");

	if (oDataFilter == null || oDataFilter.trim().length() == 0)
	{
		return null;
	}

	Edm edm = null;
	EdmEntityType edmType = null;
	FilterExpression filterExpression;
	try
	{
		filterExpression = UriParser.parseFilter(edm, edmType, oDataFilter);
	}
	catch (ODataMessageException e)
	{
		throw new IllegalArgumentException("Cannot parse OData filter \"" + oDataFilter + "\"", e);
	}
	CommonExpression commonExpression = filterExpression.getExpression();
	return this.processFilterExpression(cb, table, commonExpression);
}
 

import org.apache.olingo.odata2.api.uri.expression.FilterExpression; //导入依赖的package包/类
@Test
public void readFilter() throws Exception {
  GetEntitySetUriInfo uriInfo = createMockedUriInfo("Rooms");
  Edm edm = EdmMock.createMockEdm();

  FilterExpression exp = UriParserImpl.parseFilter(edm, edm.getEntityType("RefScenario", "Room"), "Version gt 105");
  Mockito.when(uriInfo.getFilter()).thenReturn(exp);

  List<Room> results = createRooms(1, 10);
  ReadResult<Room> readResult = ReadResult.forResult(results).build();
  Mockito.when(mockedDataSource.readData(Mockito.any(EdmEntitySet.class), Mockito.any(ReadOptions.class)))
      .thenReturn((ReadResult)readResult);

  ODataResponse result = dataSourceProcessor.readEntitySet(uriInfo, "application/json");

  StringHelper.Stream resultStream = StringHelper.toStream(result.getEntityAsStream());
  List<LinkedTreeMap<?, ?>> parsedResults = JsonHelper.getResults(resultStream.asString());
  Assert.assertEquals(5, parsedResults.size());
  Assert.assertEquals("Room with id: 10", parsedResults.get(0).get("Name"));
  Assert.assertEquals("Room with id: 9", parsedResults.get(4).get("Name"));
}
 

import org.apache.olingo.odata2.api.uri.expression.FilterExpression; //导入依赖的package包/类
@SuppressWarnings("unchecked")
@Test
public void testToJsonBinaryProperty() throws Exception {
  FilterExpression expression = UriParser.parseFilter(null, null, "a eq b");
  String jsonString = toJson(expression);
  Gson gsonConverter = new Gson();

  LinkedTreeMap<String, Object> jsonMap = gsonConverter.fromJson(jsonString, LinkedTreeMap.class);
  checkBinary(jsonMap, "eq", null);

  LinkedTreeMap<String, Object> left = (LinkedTreeMap<String, Object>) jsonMap.get(LEFT);
  checkProperty(left, null, "a");

  LinkedTreeMap<String, Object> right = (LinkedTreeMap<String, Object>) jsonMap.get(RIGHT);
  checkProperty(right, null, "b");
}
 

import org.apache.olingo.odata2.api.uri.expression.FilterExpression; //导入依赖的package包/类
@SuppressWarnings("unchecked")
@Test
public void testToJsonBinaryLiteral() throws Exception {
  FilterExpression expression = UriParser.parseFilter(null, null, "'a' eq 'b'");
  String jsonString = toJson(expression);
  Gson gsonConverter = new Gson();

  LinkedTreeMap<String, Object> jsonMap = gsonConverter.fromJson(jsonString, LinkedTreeMap.class);
  checkBinary(jsonMap, "eq", "Edm.Boolean");

  LinkedTreeMap<String, Object> left = (LinkedTreeMap<String, Object>) jsonMap.get(LEFT);
  checkLiteral(left, "Edm.String", "a");

  LinkedTreeMap<String, Object> right = (LinkedTreeMap<String, Object>) jsonMap.get(RIGHT);
  checkLiteral(right, "Edm.String", "b");
}
 

import org.apache.olingo.odata2.api.uri.expression.FilterExpression; //导入依赖的package包/类
@SuppressWarnings("unchecked")
@Test
public void testToJsonMember() throws Exception {
  FilterExpression expression = UriParser.parseFilter(null, null, "Location/Country");
  String jsonString = toJson(expression);
  Gson gsonConverter = new Gson();

  LinkedTreeMap<String, Object> jsonMap = gsonConverter.fromJson(jsonString, LinkedTreeMap.class);
  checkMember(jsonMap, null);

  LinkedTreeMap<String, Object> source = (LinkedTreeMap<String, Object>) jsonMap.get(SOURCE);
  checkProperty(source, null, "Location");

  LinkedTreeMap<String, Object> path = (LinkedTreeMap<String, Object>) jsonMap.get(PATH);
  checkProperty(path, null, "Country");
}
 

import org.apache.olingo.odata2.api.uri.expression.FilterExpression; //导入依赖的package包/类
@SuppressWarnings("unchecked")
@Test
public void testToJsonMember2() throws Exception {
  FilterExpression expression = UriParser.parseFilter(null, null, "Location/Country/PostalCode");
  String jsonString = toJson(expression);
  Gson gsonConverter = new Gson();

  LinkedTreeMap<String, Object> jsonMap = gsonConverter.fromJson(jsonString, LinkedTreeMap.class);
  checkMember(jsonMap, null);

  LinkedTreeMap<String, Object> source1 = (LinkedTreeMap<String, Object>) jsonMap.get(SOURCE);
  checkMember(source1, null);

  LinkedTreeMap<String, Object> source2 = (LinkedTreeMap<String, Object>) source1.get(SOURCE);
  checkProperty(source2, null, "Location");

  LinkedTreeMap<String, Object> path1 = (LinkedTreeMap<String, Object>) source1.get(PATH);
  checkProperty(path1, null, "Country");

  LinkedTreeMap<String, Object> path = (LinkedTreeMap<String, Object>) jsonMap.get(PATH);
  checkProperty(path, null, "PostalCode");
}
 

import org.apache.olingo.odata2.api.uri.expression.FilterExpression; //导入依赖的package包/类
/** Private constructor used by {@link ProductsMap#getSubMapBuilder()}. */
private UserMap (FilterExpression filter, OrderByExpression order, int skip,
   int top)
{
   this.filter = filter;
   this.orderBy = order;
   this.skip = skip;
   this.top = top;

   hasRole = Security.currentUserHasRole(Role.SYSTEM_MANAGER, Role.USER_MANAGER);
}
 

import org.apache.olingo.odata2.api.uri.expression.FilterExpression; //导入依赖的package包/类
/**
 * Private constructor used by
 * {@link CollectionProductsMap#getSubMapBuilder()}
 */
public CollectionProductsMap (String collection_uuid, FilterExpression filter,
   OrderByExpression order, int skip, int top)
{
   this.collectionUUID = collection_uuid;

   this.filter = filter;
   this.orderBy = order;
   this.skip = skip;
   this.top = top;
}
 

import org.apache.olingo.odata2.api.uri.expression.FilterExpression; //导入依赖的package包/类
/** Private constructor used by {@link ProductsMap#getSubMapBuilder()}. */
private ProductsMap (FilterExpression filter, OrderByExpression order,
   int skip, int top)
{
   this.filter = filter;
   this.orderBy = order;
   this.skip = skip;
   this.top = top;
}
 

import org.apache.olingo.odata2.api.uri.expression.FilterExpression; //导入依赖的package包/类
private CollectionMap (FilterExpression filter, OrderByExpression order,
   int skip, int top, String parent_id)
{
   this.filter = filter;
   this.orderBy = order;
   this.skip = skip;
   this.top = top;
   this.parentId = parent_id;
}
 

import org.apache.olingo.odata2.api.uri.expression.FilterExpression; //导入依赖的package包/类
/** Private constructor used by {@link DeletedProductsMap#getSubMapBuilder()}. */
private DeletedProductsMap(FilterExpression filter, OrderByExpression order,
      int skip, int top)
{
   this.filter = filter;
   this.orderBy = order;
   this.skip = skip;
   this.top = top;
}
 

import org.apache.olingo.odata2.api.uri.expression.FilterExpression; //导入依赖的package包/类
protected SQLVisitor(Class entity, FilterExpression filter, OrderByExpression order)
      throws ExceptionVisitExpression, ODataApplicationException
{
   this.hqlPrefix = new StringBuilder(HQL_PREFIX).append(entity.getName()).append(" ").toString();
   this.filterExpression = filter;
   this.orderExpression = order;
   this.hqlParameters = new LinkedList<>();
   compute();
}