| 1 | /* |
| 2 | * Copyright (c) 2005-2010, WSO2 Inc. (http://www.wso2.org) All Rights Reserved. |
| 3 | * |
| 4 | * WSO2 Inc. licenses this file to you under the Apache License, |
| 5 | * Version 2.0 (the "License"); you may not use this file except |
| 6 | * in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, |
| 12 | * software distributed under the License is distributed on an |
| 13 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 14 | * KIND, either express or implied. See the License for the |
| 15 | * specific language governing permissions and limitations |
| 16 | * under the License. |
| 17 | */ |
| 18 | package org.wso2.siddhi.query.api.definition; |
| 19 | |
| 20 | import org.wso2.siddhi.query.api.ExecutionPlan; |
| 21 | import org.wso2.siddhi.query.api.exception.AttributeAlreadyExist; |
| 22 | |
| 23 | import java.util.ArrayList; |
| 24 | import java.util.List; |
| 25 | |
| 26 | public class StreamDefinition implements ExecutionPlan { |
| 27 | |
| 28 | String streamId; |
| 29 | List<Attribute> attributeList = new ArrayList<Attribute>(); |
| 30 | |
| 31 | public StreamDefinition name(String streamId) { |
| 32 | this.streamId = streamId; |
| 33 | return this; |
| 34 | } |
| 35 | |
| 36 | public StreamDefinition attribute(String attributeName, Attribute.Type type) { |
| 37 | checkAttribute(attributeName); |
| 38 | this.attributeList.add(new Attribute(attributeName, type)); |
| 39 | return this; |
| 40 | } |
| 41 | |
| 42 | private void checkAttribute(String attributeName) { |
| 43 | for (Attribute attribute : attributeList) { |
| 44 | if (attribute.getName().equals(attributeName)) { |
| 45 | throw new AttributeAlreadyExist(attributeName + " is already defined for with type " + attribute.getType() + " for " + streamId); |
| 46 | } |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | public String getStreamId() { |
| 51 | return streamId; |
| 52 | } |
| 53 | |
| 54 | public List<Attribute> getAttributeList() { |
| 55 | return attributeList; |
| 56 | } |
| 57 | |
| 58 | public Attribute.Type getAttributeType(String attributeName) { |
| 59 | for (Attribute attribute : attributeList) { |
| 60 | if (attribute.getName().equals(attributeName)) { |
| 61 | return attribute.getType(); |
| 62 | } |
| 63 | } |
| 64 | return null; //todo through exception |
| 65 | } |
| 66 | |
| 67 | public int getAttributePosition(String attributeName) { |
| 68 | for (int i = 0, attributeListSize = attributeList.size(); i < attributeListSize; i++) { |
| 69 | Attribute attribute = attributeList.get(i); |
| 70 | if (attribute.getName().equals(attributeName)) { |
| 71 | return i; |
| 72 | } |
| 73 | } |
| 74 | return 0; //todo through exception |
| 75 | } |
| 76 | |
| 77 | @Override |
| 78 | public String toString() { |
| 79 | return "StreamDefinition{" + |
| 80 | "streamId='" + streamId + '\'' + |
| 81 | ", attributeList=" + attributeList + |
| 82 | '}'; |
| 83 | } |
| 84 | } |