| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.olingo.commons.core.edm.annotation; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.olingo.commons.api.edm.Edm; |
| import org.apache.olingo.commons.api.edm.EdmException; |
| import org.apache.olingo.commons.api.edm.EdmPrimitiveType; |
| import org.apache.olingo.commons.api.edm.EdmPrimitiveTypeException; |
| import org.apache.olingo.commons.api.edm.EdmPrimitiveTypeKind; |
| import org.apache.olingo.commons.api.edm.annotation.EdmConstantExpression; |
| import org.apache.olingo.commons.api.edm.geo.Geospatial; |
| import org.apache.olingo.commons.api.edm.provider.annotation.CsdlConstantExpression; |
| import org.apache.olingo.commons.core.edm.primitivetype.EdmPrimitiveTypeFactory; |
| |
| public class EdmConstantExpressionImpl extends AbstractEdmExpression implements EdmConstantExpression { |
| |
| private EdmPrimitiveType type; |
| private final CsdlConstantExpression csdlExp; |
| |
| private boolean built = false; |
| private Object primitive; |
| private String enumTypeName; |
| private List<String> enumMembers; |
| private Geospatial geospatial; |
| |
| public EdmConstantExpressionImpl(Edm edm, final CsdlConstantExpression constExprConstruct) { |
| super(edm, constExprConstruct.getType().toString()); |
| this.csdlExp = constExprConstruct; |
| } |
| |
| @Override |
| public String getValueAsString() { |
| return csdlExp.getValue(); |
| } |
| |
| private void build() { |
| if (csdlExp.getType() == CsdlConstantExpression.ConstantExpressionType.EnumMember) { |
| if (csdlExp.getValue() == null) { |
| throw new EdmException("Expression value must not be null"); |
| } |
| final List<String> localEnumValues = new ArrayList<>(); |
| for (String split : csdlExp.getValue().split(" ")) { |
| final String[] enumSplit = split.split("/"); |
| if (enumSplit.length != 2) { |
| throw new EdmException("Enum expression value must consist of enumTypeName/EnumMember."); |
| } |
| enumTypeName = enumSplit[0]; |
| localEnumValues.add(enumSplit[1]); |
| } |
| enumMembers = Collections.unmodifiableList(localEnumValues); |
| } else { |
| EdmPrimitiveTypeKind kind; |
| switch (csdlExp.getType()) { |
| case Binary: |
| kind = EdmPrimitiveTypeKind.Binary; |
| break; |
| case Bool: |
| kind = EdmPrimitiveTypeKind.Boolean; |
| break; |
| case Date: |
| kind = EdmPrimitiveTypeKind.Date; |
| break; |
| case DateTimeOffset: |
| kind = EdmPrimitiveTypeKind.DateTimeOffset; |
| break; |
| case Decimal: |
| kind = EdmPrimitiveTypeKind.Decimal; |
| break; |
| case Duration: |
| kind = EdmPrimitiveTypeKind.Duration; |
| break; |
| case Float: |
| kind = EdmPrimitiveTypeKind.Single; |
| break; |
| case Guid: |
| kind = EdmPrimitiveTypeKind.Guid; |
| break; |
| case Int: |
| kind = EdmPrimitiveTypeKind.Int32; |
| break; |
| case TimeOfDay: |
| kind = EdmPrimitiveTypeKind.TimeOfDay; |
| break; |
| case String: |
| default: |
| kind = EdmPrimitiveTypeKind.String; |
| } |
| type = EdmPrimitiveTypeFactory.getInstance(kind); |
| try { |
| primitive = type.valueOfString(csdlExp.getValue(), null, null, null, null, null, type.getDefaultType()); |
| } catch (EdmPrimitiveTypeException e) { |
| throw new IllegalArgumentException(e); |
| } |
| } |
| built = true; |
| } |
| |
| @Override |
| public EdmExpressionType getExpressionType() { |
| switch (csdlExp.getType()) { |
| case Binary: |
| return EdmExpressionType.Binary; |
| case Bool: |
| return EdmExpressionType.Bool; |
| case Date: |
| return EdmExpressionType.Date; |
| case DateTimeOffset: |
| return EdmExpressionType.DateTimeOffset; |
| case Decimal: |
| return EdmExpressionType.Decimal; |
| case Duration: |
| return EdmExpressionType.Duration; |
| case EnumMember: |
| return EdmExpressionType.EnumMember; |
| case Float: |
| return EdmExpressionType.Float; |
| case Guid: |
| return EdmExpressionType.Guid; |
| case Int: |
| return EdmExpressionType.Int; |
| case String: |
| return EdmExpressionType.String; |
| case TimeOfDay: |
| return EdmExpressionType.TimeOfDay; |
| default: |
| throw new EdmException("Invalid Expressiontype for constant expression: " + csdlExp.getType()); |
| } |
| } |
| |
| @Override |
| public Object asPrimitive() { |
| if (!built) { |
| build(); |
| } |
| return primitive; |
| } |
| |
| @Override |
| public List<String> asEnumMembers() { |
| if (!built) { |
| build(); |
| } |
| return enumMembers; |
| } |
| |
| @Override |
| public String getEnumTypeName() { |
| if (!built) { |
| build(); |
| } |
| return enumTypeName; |
| } |
| |
| @Override |
| public Geospatial asGeospatial() { |
| if (!built) { |
| build(); |
| } |
| return geospatial; |
| } |
| } |