| /******************************************************************************* |
| * 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.odata2.core.uri.expression; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.olingo.odata2.api.edm.EdmType; |
| import org.apache.olingo.odata2.api.exception.ODataApplicationException; |
| import org.apache.olingo.odata2.api.uri.expression.CommonExpression; |
| import org.apache.olingo.odata2.api.uri.expression.ExceptionVisitExpression; |
| import org.apache.olingo.odata2.api.uri.expression.ExpressionKind; |
| import org.apache.olingo.odata2.api.uri.expression.ExpressionVisitor; |
| import org.apache.olingo.odata2.api.uri.expression.MethodExpression; |
| import org.apache.olingo.odata2.api.uri.expression.MethodOperator; |
| |
| /** |
| * |
| */ |
| public class MethodExpressionImpl implements MethodExpression { |
| |
| private InfoMethod infoMethod; |
| private EdmType returnType; |
| private List<CommonExpression> actualParameters; |
| |
| public MethodExpressionImpl(final InfoMethod infoMethod) { |
| this.infoMethod = infoMethod; |
| returnType = infoMethod.getReturnType(); |
| actualParameters = new ArrayList<CommonExpression>(); |
| } |
| |
| @Override |
| public EdmType getEdmType() { |
| return returnType; |
| } |
| |
| @Override |
| public CommonExpression setEdmType(final EdmType edmType) { |
| returnType = edmType; |
| return this; |
| } |
| |
| @Override |
| public MethodOperator getMethod() { |
| return infoMethod.getMethod(); |
| } |
| |
| public InfoMethod getMethodInfo() { |
| return infoMethod; |
| } |
| |
| @Override |
| public List<CommonExpression> getParameters() { |
| return actualParameters; |
| } |
| |
| @Override |
| public int getParameterCount() { |
| return actualParameters.size(); |
| } |
| |
| /** |
| * @param expression |
| * @return A self reference for method chaining" |
| */ |
| public MethodExpressionImpl appendParameter(final CommonExpression expression) { |
| actualParameters.add(expression); |
| return this; |
| } |
| |
| @Override |
| public ExpressionKind getKind() { |
| return ExpressionKind.METHOD; |
| } |
| |
| @Override |
| public String getUriLiteral() { |
| return infoMethod.getSyntax(); |
| } |
| |
| @Override |
| public Object accept(final ExpressionVisitor visitor) throws ExceptionVisitExpression, ODataApplicationException { |
| ArrayList<Object> retParameters = new ArrayList<Object>(); |
| for (CommonExpression parameter : actualParameters) { |
| Object retParameter = parameter.accept(visitor); |
| retParameters.add(retParameter); |
| } |
| |
| Object ret = visitor.visitMethod(this, getMethod(), retParameters); |
| return ret; |
| } |
| |
| } |