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109
...pl/src/main/java/com/liferay/headless/builder/internal/helper/FilterExpressionHelper.java
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| /** | ||
| * SPDX-FileCopyrightText: (c) 2023 Liferay, Inc. https://liferay.com | ||
| * SPDX-License-Identifier: LGPL-2.1-or-later OR LicenseRef-Liferay-DXP-EULA-2.0.0-2023-06 | ||
| */ | ||
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| package com.liferay.headless.builder.internal.helper; | ||
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| import com.liferay.headless.builder.application.APIApplication; | ||
| import com.liferay.headless.builder.internal.odata.entity.APISchemaEntityModel; | ||
| import com.liferay.headless.builder.internal.odata.filter.expression.APISchemaTranslatorExpressionVisitor; | ||
| import com.liferay.object.model.ObjectDefinition; | ||
| import com.liferay.object.rest.filter.parser.ObjectDefinitionFilterParser; | ||
| import com.liferay.object.rest.odata.entity.v1_0.provider.EntityModelProvider; | ||
| import com.liferay.object.service.ObjectDefinitionLocalService; | ||
| import com.liferay.portal.kernel.exception.PortalException; | ||
| import com.liferay.portal.kernel.util.Validator; | ||
| import com.liferay.portal.odata.entity.EntityModel; | ||
| import com.liferay.portal.odata.filter.InvalidFilterException; | ||
| import com.liferay.portal.odata.filter.expression.BinaryExpression; | ||
| import com.liferay.portal.odata.filter.expression.Expression; | ||
| import com.liferay.portal.odata.filter.expression.ExpressionVisitException; | ||
| import com.liferay.portal.odata.filter.expression.factory.ExpressionFactory; | ||
|
|
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| import org.osgi.service.component.annotations.Component; | ||
| import org.osgi.service.component.annotations.Reference; | ||
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| /** | ||
| * @author Luis Miguel Barcos | ||
| */ | ||
| @Component(service = FilterExpressionHelper.class) | ||
| public class FilterExpressionHelper { | ||
|
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| public Expression getExpression( | ||
| long companyId, APIApplication.Endpoint endpoint, | ||
| String filterString) | ||
| throws PortalException { | ||
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| APIApplication.Filter filter = endpoint.getFilter(); | ||
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| if ((filter == null) && Validator.isNull(filterString)) { | ||
| return null; | ||
| } | ||
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| Expression endpointFilterExpression = null; | ||
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| APIApplication.Schema schema = endpoint.getResponseSchema(); | ||
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| String objectDefinitionExternalReferenceCode = | ||
| schema.getMainObjectDefinitionExternalReferenceCode(); | ||
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| ObjectDefinition objectDefinition = | ||
| _objectDefinitionLocalService. | ||
| getObjectDefinitionByExternalReferenceCode( | ||
| objectDefinitionExternalReferenceCode, companyId); | ||
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| EntityModel entityModel = _entityModelProvider.getEntityModel( | ||
| objectDefinition); | ||
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| if (filter != null) { | ||
| endpointFilterExpression = _objectDefinitionFilterParser.parse( | ||
| entityModel, filter.getODataFilterString(), objectDefinition); | ||
| } | ||
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| Expression requestFilterExpression = null; | ||
|
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| if (Validator.isNotNull(filterString)) { | ||
| EntityModel apiSchemaEntityModel = new APISchemaEntityModel( | ||
| entityModel, endpoint.getResponseSchema()); | ||
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| Expression expression = _objectDefinitionFilterParser.parse( | ||
| apiSchemaEntityModel, filterString, objectDefinition); | ||
|
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| try { | ||
| requestFilterExpression = expression.accept( | ||
| new APISchemaTranslatorExpressionVisitor( | ||
| apiSchemaEntityModel, _expressionFactory)); | ||
| } | ||
| catch (ExpressionVisitException expressionVisitException) { | ||
| throw new InvalidFilterException( | ||
| expressionVisitException.getMessage(), | ||
| expressionVisitException); | ||
| } | ||
| } | ||
|
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| if (endpointFilterExpression == null) { | ||
| return requestFilterExpression; | ||
| } | ||
| else if (requestFilterExpression == null) { | ||
| return endpointFilterExpression; | ||
| } | ||
|
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| return _expressionFactory.createBinaryExpression( | ||
| endpointFilterExpression, BinaryExpression.Operation.AND, | ||
| requestFilterExpression); | ||
| } | ||
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| @Reference | ||
| private EntityModelProvider _entityModelProvider; | ||
|
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| @Reference | ||
| private ExpressionFactory _expressionFactory; | ||
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| @Reference | ||
| private ObjectDefinitionFilterParser _objectDefinitionFilterParser; | ||
|
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| @Reference | ||
| private ObjectDefinitionLocalService _objectDefinitionLocalService; | ||
|
|
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| } |
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