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* #1299 IMPLEMENT IDENTITY MAP PATTERN. * #1299 Add docstrings, README, testCases and class diagram. * #1299 Update a comment string in DB implementation. * #1299 Fix code smells. * #1299 Fix code smells and add comments to App.java * #1299 Update constant name. * #1299 Remove java version dependency and update README.md. * #1299 Add lombok to PersonFinder.java. * #1299 Add dependency to maven-assembly-plugin. * #1299 Use java streams in PersonDbSimulatorImplementation.java. * #1299 Add print statements while returning the person object. * #1299 Update README.md. * #1299 Add puml file. * Update README.md
This commit is contained in:
u7275858
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/*
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* This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
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*
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* The MIT License
|
||||
* Copyright © 2014-2022 Ilkka Seppälä
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
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*/
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package com.iluwatar.identitymap;
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import lombok.extern.slf4j.Slf4j;
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/**
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* The basic idea behind the Identity Map is to have a series of maps containing objects that have been pulled from the database.
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* The below example demonstrates the identity map pattern by creating a sample DB.
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* Since only 1 DB has been created we only have 1 map corresponding to it for the purpose of this demo.
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* When you load an object from the database, you first check the map.
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* If there’s an object in it that corresponds to the one you’re loading, you return it. If not, you go to the database,
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* putting the objects on the map for future reference as you load them.
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*/
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@Slf4j
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public class App {
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/**
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* Program entry point.
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*
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* @param args command line args.
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*/
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public static void main(String[] args) {
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// Dummy Persons
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Person person1 = new Person(1, "John", 27304159);
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Person person2 = new Person(2, "Thomas", 42273631);
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Person person3 = new Person(3, "Arthur", 27489171);
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Person person4 = new Person(4, "Finn", 20499078);
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Person person5 = new Person(5, "Michael", 40599078);
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// Init database
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PersonDbSimulatorImplementation db = new PersonDbSimulatorImplementation();
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db.insert(person1);
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db.insert(person2);
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db.insert(person3);
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db.insert(person4);
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db.insert(person5);
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// Init a personFinder
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PersonFinder finder = new PersonFinder();
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finder.setDb(db);
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// Find persons in DataBase not the map.
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LOGGER.info(finder.getPerson(2).toString());
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LOGGER.info(finder.getPerson(4).toString());
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LOGGER.info(finder.getPerson(5).toString());
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// Find the person in the map.
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LOGGER.info(finder.getPerson(2).toString());
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}
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}
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@@ -0,0 +1,31 @@
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/*
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* This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
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*
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* The MIT License
|
||||
* Copyright © 2014-2022 Ilkka Seppälä
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||||
*
|
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* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
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||||
*/
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package com.iluwatar.identitymap;
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public class IdNotFoundException extends RuntimeException {
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public IdNotFoundException(final String message) {
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super(message);
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}
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}
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/*
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* This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
|
||||
*
|
||||
* The MIT License
|
||||
* Copyright © 2014-2022 Ilkka Seppälä
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
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||||
*/
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package com.iluwatar.identitymap;
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import java.util.HashMap;
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import java.util.Map;
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import lombok.Getter;
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import lombok.extern.slf4j.Slf4j;
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/**
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* This class stores the map into which we will be caching records after loading them from a DataBase.
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* Stores the records as a Hash Map with the personNationalIDs as keys.
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*/
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@Slf4j
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@Getter
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public class IdentityMap {
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private Map<Integer, Person> personMap = new HashMap<>();
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/**
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* Add person to the map.
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*/
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public void addPerson(Person person) {
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if (!personMap.containsKey(person.getPersonNationalId())) {
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personMap.put(person.getPersonNationalId(), person);
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} else { // Ensure that addPerson does not update a record. This situation will never arise in our implementation. Added only for testing purposes.
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LOGGER.info("Key already in Map");
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}
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}
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/**
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* Get Person with given id.
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*
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* @param id : personNationalId as requested by user.
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*/
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public Person getPerson(int id) {
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Person person = personMap.get(id);
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if (person == null) {
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LOGGER.info("ID not in Map.");
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return null;
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}
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LOGGER.info(person.toString());
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return person;
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}
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/**
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* Get the size of the map.
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*/
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public int size() {
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if (personMap == null) {
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return 0;
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}
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return personMap.size();
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}
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}
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@@ -0,0 +1,57 @@
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/*
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* This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
|
||||
*
|
||||
* The MIT License
|
||||
* Copyright © 2014-2022 Ilkka Seppälä
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
package com.iluwatar.identitymap;
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import java.io.Serializable;
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import lombok.AllArgsConstructor;
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import lombok.EqualsAndHashCode;
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import lombok.Getter;
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import lombok.Setter;
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/**
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* Person definition.
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*/
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@EqualsAndHashCode(onlyExplicitlyIncluded = true)
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@Getter
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@Setter
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@AllArgsConstructor
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public final class Person implements Serializable {
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private static final long serialVersionUID = 1L;
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@EqualsAndHashCode.Include
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private int personNationalId;
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private String name;
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private long phoneNum;
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@Override
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public String toString() {
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return "Person ID is : " + personNationalId + " ; Person Name is : " + name + " ; Phone Number is :" + phoneNum;
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}
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}
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@@ -0,0 +1,36 @@
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/*
|
||||
* This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
|
||||
*
|
||||
* The MIT License
|
||||
* Copyright © 2014-2022 Ilkka Seppälä
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
package com.iluwatar.identitymap;
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||||
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public interface PersonDbSimulator {
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Person find(int personNationalID);
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void insert(Person person);
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void update(Person person);
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void delete(int personNationalID);
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}
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+108
@@ -0,0 +1,108 @@
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/*
|
||||
* This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
|
||||
*
|
||||
* The MIT License
|
||||
* Copyright © 2014-2022 Ilkka Seppälä
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
package com.iluwatar.identitymap;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.List;
|
||||
import java.util.Optional;
|
||||
|
||||
import lombok.extern.slf4j.Slf4j;
|
||||
|
||||
/**
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||||
* This is a sample database implementation. The database is in the form of an arraylist which stores records of
|
||||
* different persons. The personNationalId acts as the primary key for a record.
|
||||
* Operations :
|
||||
* -> find (look for object with a particular ID)
|
||||
* -> insert (insert record for a new person into the database)
|
||||
* -> update (update the record of a person). To do this, create a new person instance with the same ID as the record you
|
||||
* want to update. Then call this method with that person as an argument.
|
||||
* -> delete (delete the record for a particular ID)
|
||||
*/
|
||||
@Slf4j
|
||||
public class PersonDbSimulatorImplementation implements PersonDbSimulator {
|
||||
|
||||
//This simulates a table in the database. To extend logic to multiple tables just add more lists to the implementation.
|
||||
private List<Person> personList = new ArrayList<>();
|
||||
static final String NOT_IN_DATA_BASE = " not in DataBase";
|
||||
static final String ID_STR = "ID : ";
|
||||
|
||||
@Override
|
||||
public Person find(int personNationalID) throws IdNotFoundException {
|
||||
Optional<Person> elem = personList.stream().filter(p -> p.getPersonNationalId() == personNationalID).findFirst();
|
||||
if (elem.isEmpty()) {
|
||||
throw new IdNotFoundException(ID_STR + personNationalID + NOT_IN_DATA_BASE);
|
||||
}
|
||||
LOGGER.info(elem.get().toString());
|
||||
return elem.get();
|
||||
}
|
||||
|
||||
@Override
|
||||
public void insert(Person person) {
|
||||
Optional<Person> elem = personList.stream().filter(p -> p.getPersonNationalId() == person.getPersonNationalId()).findFirst();
|
||||
if (elem.isPresent()) {
|
||||
LOGGER.info("Record already exists.");
|
||||
return;
|
||||
}
|
||||
personList.add(person);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void update(Person person) throws IdNotFoundException {
|
||||
Optional<Person> elem = personList.stream().filter(p -> p.getPersonNationalId() == person.getPersonNationalId()).findFirst();
|
||||
if (elem.isPresent()) {
|
||||
elem.get().setName(person.getName());
|
||||
elem.get().setPhoneNum(person.getPhoneNum());
|
||||
LOGGER.info("Record updated successfully");
|
||||
return;
|
||||
}
|
||||
throw new IdNotFoundException(ID_STR + person.getPersonNationalId() + NOT_IN_DATA_BASE);
|
||||
}
|
||||
|
||||
/**
|
||||
* Delete the record corresponding to given ID from the DB.
|
||||
*
|
||||
* @param id : personNationalId for person whose record is to be deleted.
|
||||
*/
|
||||
public void delete(int id) throws IdNotFoundException {
|
||||
Optional<Person> elem = personList.stream().filter(p -> p.getPersonNationalId() == id).findFirst();
|
||||
if (elem.isPresent()) {
|
||||
personList.remove(elem.get());
|
||||
LOGGER.info("Record deleted successfully.");
|
||||
return;
|
||||
}
|
||||
throw new IdNotFoundException(ID_STR + id + NOT_IN_DATA_BASE);
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the size of the database.
|
||||
*/
|
||||
public int size() {
|
||||
if (personList == null) {
|
||||
return 0;
|
||||
}
|
||||
return personList.size();
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,69 @@
|
||||
/*
|
||||
* This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
|
||||
*
|
||||
* The MIT License
|
||||
* Copyright © 2014-2022 Ilkka Seppälä
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
package com.iluwatar.identitymap;
|
||||
|
||||
import lombok.Getter;
|
||||
import lombok.Setter;
|
||||
import lombok.extern.slf4j.Slf4j;
|
||||
|
||||
/**
|
||||
* Any object of this class stores a DataBase and an Identity Map. When we try to look for a key we first check if
|
||||
* it has been cached in the Identity Map and return it if it is indeed in the map.
|
||||
* If that is not the case then go to the DataBase, get the record, store it in the
|
||||
* Identity Map and then return the record. Now if we look for the record again we will find it in the table itself which
|
||||
* will make lookup faster.
|
||||
*/
|
||||
@Slf4j
|
||||
@Getter
|
||||
@Setter
|
||||
public class PersonFinder {
|
||||
private static final long serialVersionUID = 1L;
|
||||
// Access to the Identity Map
|
||||
private IdentityMap identityMap = new IdentityMap();
|
||||
private PersonDbSimulatorImplementation db = new PersonDbSimulatorImplementation();
|
||||
/**
|
||||
* get person corresponding to input ID.
|
||||
*
|
||||
* @param key : personNationalId to look for.
|
||||
*/
|
||||
public Person getPerson(int key) {
|
||||
// Try to find person in the identity map
|
||||
Person person = this.identityMap.getPerson(key);
|
||||
if (person != null) {
|
||||
LOGGER.info("Person found in the Map");
|
||||
return person;
|
||||
} else {
|
||||
// Try to find person in the database
|
||||
person = this.db.find(key);
|
||||
if (person != null) {
|
||||
this.identityMap.addPerson(person);
|
||||
LOGGER.info("Person found in DB.");
|
||||
return person;
|
||||
}
|
||||
LOGGER.info("Person with this ID does not exist.");
|
||||
return null;
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,35 @@
|
||||
/*
|
||||
* This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
|
||||
*
|
||||
* The MIT License
|
||||
* Copyright © 2014-2022 Ilkka Seppälä
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
package com.iluwatar.identitymap;
|
||||
import org.junit.jupiter.api.Test;
|
||||
|
||||
import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
|
||||
|
||||
class AppTest {
|
||||
@Test
|
||||
void shouldExecuteApplicationWithoutException() {
|
||||
assertDoesNotThrow(() -> App.main(new String[]{}));
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,75 @@
|
||||
/*
|
||||
* This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
|
||||
*
|
||||
* The MIT License
|
||||
* Copyright © 2014-2022 Ilkka Seppälä
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
package com.iluwatar.identitymap;
|
||||
|
||||
import org.junit.jupiter.api.Assertions;
|
||||
import org.junit.jupiter.api.Test;
|
||||
|
||||
class IdentityMapTest {
|
||||
@Test
|
||||
void addToMap(){
|
||||
// new instance of an identity map(not connected to any DB here)
|
||||
IdentityMap idMap = new IdentityMap();
|
||||
// Dummy person instances
|
||||
Person person1 = new Person(11, "Michael", 27304159);
|
||||
Person person2 = new Person(22, "John", 42273631);
|
||||
Person person3 = new Person(33, "Arthur", 27489171);
|
||||
Person person4 = new Person(44, "Finn", 20499078);
|
||||
// id already in map
|
||||
Person person5 = new Person(11, "Michael", 40599078);
|
||||
// All records go into identity map
|
||||
idMap.addPerson(person1);
|
||||
idMap.addPerson(person2);
|
||||
idMap.addPerson(person3);
|
||||
idMap.addPerson(person4);
|
||||
idMap.addPerson(person5);
|
||||
// Test no duplicate in our Map.
|
||||
Assertions.assertEquals(4,idMap.size(),"Size of the map is incorrect");
|
||||
// Test record not updated by add method.
|
||||
Assertions.assertEquals(27304159,idMap.getPerson(11).getPhoneNum(),"Incorrect return value for phone number");
|
||||
}
|
||||
@Test
|
||||
void testGetFromMap() {
|
||||
// new instance of an identity map(not connected to any DB here)
|
||||
IdentityMap idMap = new IdentityMap();
|
||||
// Dummy person instances
|
||||
Person person1 = new Person(11, "Michael", 27304159);
|
||||
Person person2 = new Person(22, "John", 42273631);
|
||||
Person person3 = new Person(33, "Arthur", 27489171);
|
||||
Person person4 = new Person(44, "Finn", 20499078);
|
||||
Person person5 = new Person(55, "Michael", 40599078);
|
||||
// All records go into identity map
|
||||
idMap.addPerson(person1);
|
||||
idMap.addPerson(person2);
|
||||
idMap.addPerson(person3);
|
||||
idMap.addPerson(person4);
|
||||
idMap.addPerson(person5);
|
||||
// Test for dummy persons in the map
|
||||
Assertions.assertEquals(person1,idMap.getPerson(11),"Incorrect person record returned");
|
||||
Assertions.assertEquals(person4,idMap.getPerson(44),"Incorrect person record returned");
|
||||
// Test for person with given id not in map
|
||||
Assertions.assertNull(idMap.getPerson(1), "Incorrect person record returned");
|
||||
}
|
||||
}
|
||||
+122
@@ -0,0 +1,122 @@
|
||||
/*
|
||||
* This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
|
||||
*
|
||||
* The MIT License
|
||||
* Copyright © 2014-2022 Ilkka Seppälä
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
package com.iluwatar.identitymap;
|
||||
|
||||
import org.junit.jupiter.api.Assertions;
|
||||
import org.junit.jupiter.api.Test;
|
||||
|
||||
class PersonDbSimulatorImplementationTest {
|
||||
@Test
|
||||
void testInsert(){
|
||||
// DataBase initialization.
|
||||
PersonDbSimulatorImplementation db = new PersonDbSimulatorImplementation();
|
||||
Assertions.assertEquals(0,db.size(),"Size of null database should be 0");
|
||||
// Dummy persons.
|
||||
Person person1 = new Person(1, "Thomas", 27304159);
|
||||
Person person2 = new Person(2, "John", 42273631);
|
||||
Person person3 = new Person(3, "Arthur", 27489171);
|
||||
db.insert(person1);
|
||||
db.insert(person2);
|
||||
db.insert(person3);
|
||||
// Test size after insertion.
|
||||
Assertions.assertEquals(3,db.size(),"Incorrect size for database.");
|
||||
Person person4 = new Person(4, "Finn", 20499078);
|
||||
Person person5 = new Person(5, "Michael", 40599078);
|
||||
db.insert(person4);
|
||||
db.insert(person5);
|
||||
// Test size after more insertions.
|
||||
Assertions.assertEquals(5,db.size(),"Incorrect size for database.");
|
||||
Person person5duplicate = new Person(5,"Kevin",89589122);
|
||||
db.insert(person5duplicate);
|
||||
// Test size after attempt to insert record with duplicate key.
|
||||
Assertions.assertEquals(5,db.size(),"Incorrect size for data base");
|
||||
}
|
||||
@Test
|
||||
void findNotInDb(){
|
||||
PersonDbSimulatorImplementation db = new PersonDbSimulatorImplementation();
|
||||
Person person1 = new Person(1, "Thomas", 27304159);
|
||||
Person person2 = new Person(2, "John", 42273631);
|
||||
db.insert(person1);
|
||||
db.insert(person2);
|
||||
// Test if IdNotFoundException is thrown where expected.
|
||||
Assertions.assertThrows(IdNotFoundException.class,()->db.find(3));
|
||||
}
|
||||
@Test
|
||||
void findInDb(){
|
||||
PersonDbSimulatorImplementation db = new PersonDbSimulatorImplementation();
|
||||
Person person1 = new Person(1, "Thomas", 27304159);
|
||||
Person person2 = new Person(2, "John", 42273631);
|
||||
db.insert(person1);
|
||||
db.insert(person2);
|
||||
Assertions.assertEquals(person2,db.find(2),"Record that was found was incorrect.");
|
||||
}
|
||||
@Test
|
||||
void updateNotInDb(){
|
||||
PersonDbSimulatorImplementation db = new PersonDbSimulatorImplementation();
|
||||
Person person1 = new Person(1, "Thomas", 27304159);
|
||||
Person person2 = new Person(2, "John", 42273631);
|
||||
db.insert(person1);
|
||||
db.insert(person2);
|
||||
Person person3 = new Person(3,"Micheal",25671234);
|
||||
// Test if IdNotFoundException is thrown when person with ID 3 is not in DB.
|
||||
Assertions.assertThrows(IdNotFoundException.class,()->db.update(person3));
|
||||
}
|
||||
@Test
|
||||
void updateInDb(){
|
||||
PersonDbSimulatorImplementation db = new PersonDbSimulatorImplementation();
|
||||
Person person1 = new Person(1, "Thomas", 27304159);
|
||||
Person person2 = new Person(2, "John", 42273631);
|
||||
db.insert(person1);
|
||||
db.insert(person2);
|
||||
Person person = new Person(2,"Thomas",42273690);
|
||||
db.update(person);
|
||||
Assertions.assertEquals(person,db.find(2),"Incorrect update.");
|
||||
}
|
||||
@Test
|
||||
void deleteNotInDb(){
|
||||
PersonDbSimulatorImplementation db = new PersonDbSimulatorImplementation();
|
||||
Person person1 = new Person(1, "Thomas", 27304159);
|
||||
Person person2 = new Person(2, "John", 42273631);
|
||||
db.insert(person1);
|
||||
db.insert(person2);
|
||||
// Test if IdNotFoundException is thrown when person with this ID not in DB.
|
||||
Assertions.assertThrows(IdNotFoundException.class,()->db.delete(3));
|
||||
}
|
||||
@Test
|
||||
void deleteInDb(){
|
||||
PersonDbSimulatorImplementation db = new PersonDbSimulatorImplementation();
|
||||
Person person1 = new Person(1, "Thomas", 27304159);
|
||||
Person person2 = new Person(2, "John", 42273631);
|
||||
db.insert(person1);
|
||||
db.insert(person2);
|
||||
// delete the record.
|
||||
db.delete(1);
|
||||
// test size of database after deletion.
|
||||
Assertions.assertEquals(1,db.size(),"Size after deletion is incorrect.");
|
||||
// try to find deleted record in db.
|
||||
Assertions.assertThrows(IdNotFoundException.class,()->db.find(1));
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,112 @@
|
||||
/*
|
||||
* This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
|
||||
*
|
||||
* The MIT License
|
||||
* Copyright © 2014-2022 Ilkka Seppälä
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
package com.iluwatar.identitymap;
|
||||
|
||||
import org.junit.jupiter.api.Assertions;
|
||||
import org.junit.jupiter.api.Test;
|
||||
|
||||
class PersonFinderTest {
|
||||
@Test
|
||||
void personFoundInDB(){
|
||||
// personFinderInstance
|
||||
PersonFinder personFinder = new PersonFinder();
|
||||
// init database for our personFinder
|
||||
PersonDbSimulatorImplementation db = new PersonDbSimulatorImplementation();
|
||||
// Dummy persons
|
||||
Person person1 = new Person(1, "John", 27304159);
|
||||
Person person2 = new Person(2, "Thomas", 42273631);
|
||||
Person person3 = new Person(3, "Arthur", 27489171);
|
||||
Person person4 = new Person(4, "Finn", 20499078);
|
||||
Person person5 = new Person(5, "Michael", 40599078);
|
||||
// Add data to the database.
|
||||
db.insert(person1);
|
||||
db.insert(person2);
|
||||
db.insert(person3);
|
||||
db.insert(person4);
|
||||
db.insert(person5);
|
||||
personFinder.setDb(db);
|
||||
|
||||
Assertions.assertEquals(person1,personFinder.getPerson(1),"Find person returns incorrect record.");
|
||||
Assertions.assertEquals(person3,personFinder.getPerson(3),"Find person returns incorrect record.");
|
||||
Assertions.assertEquals(person2,personFinder.getPerson(2),"Find person returns incorrect record.");
|
||||
Assertions.assertEquals(person5,personFinder.getPerson(5),"Find person returns incorrect record.");
|
||||
Assertions.assertEquals(person4,personFinder.getPerson(4),"Find person returns incorrect record.");
|
||||
}
|
||||
@Test
|
||||
void personFoundInIdMap(){
|
||||
// personFinderInstance
|
||||
PersonFinder personFinder = new PersonFinder();
|
||||
// init database for our personFinder
|
||||
PersonDbSimulatorImplementation db = new PersonDbSimulatorImplementation();
|
||||
// Dummy persons
|
||||
Person person1 = new Person(1, "John", 27304159);
|
||||
Person person2 = new Person(2, "Thomas", 42273631);
|
||||
Person person3 = new Person(3, "Arthur", 27489171);
|
||||
Person person4 = new Person(4, "Finn", 20499078);
|
||||
Person person5 = new Person(5, "Michael", 40599078);
|
||||
// Add data to the database.
|
||||
db.insert(person1);
|
||||
db.insert(person2);
|
||||
db.insert(person3);
|
||||
db.insert(person4);
|
||||
db.insert(person5);
|
||||
personFinder.setDb(db);
|
||||
// Assure key is not in the ID map.
|
||||
Assertions.assertFalse(personFinder.getIdentityMap().getPersonMap().containsKey(3));
|
||||
// Assure key is in the database.
|
||||
Assertions.assertEquals(person3,personFinder.getPerson(3),"Finder returns incorrect record.");
|
||||
// Assure that the record for this key is cached in the Map now.
|
||||
Assertions.assertTrue(personFinder.getIdentityMap().getPersonMap().containsKey(3));
|
||||
// Find the record again. This time it will be found in the map.
|
||||
Assertions.assertEquals(person3,personFinder.getPerson(3),"Finder returns incorrect record.");
|
||||
}
|
||||
@Test
|
||||
void personNotFoundInDB(){
|
||||
PersonFinder personFinder = new PersonFinder();
|
||||
// init database for our personFinder
|
||||
PersonDbSimulatorImplementation db = new PersonDbSimulatorImplementation();
|
||||
personFinder.setDb(db);
|
||||
Assertions.assertThrows(IdNotFoundException.class,()->personFinder.getPerson(1));
|
||||
// Dummy persons
|
||||
Person person1 = new Person(1, "John", 27304159);
|
||||
Person person2 = new Person(2, "Thomas", 42273631);
|
||||
Person person3 = new Person(3, "Arthur", 27489171);
|
||||
Person person4 = new Person(4, "Finn", 20499078);
|
||||
Person person5 = new Person(5, "Michael", 40599078);
|
||||
db.insert(person1);
|
||||
db.insert(person2);
|
||||
db.insert(person3);
|
||||
db.insert(person4);
|
||||
db.insert(person5);
|
||||
personFinder.setDb(db);
|
||||
// Assure that the database has been updated.
|
||||
Assertions.assertEquals(person4,personFinder.getPerson(4),"Find returns incorrect record");
|
||||
// Assure key is in DB now.
|
||||
Assertions.assertDoesNotThrow(()->personFinder.getPerson(1));
|
||||
// Assure key not in DB.
|
||||
Assertions.assertThrows(IdNotFoundException.class,()->personFinder.getPerson(6));
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,43 @@
|
||||
/*
|
||||
* This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
|
||||
*
|
||||
* The MIT License
|
||||
* Copyright © 2014-2022 Ilkka Seppälä
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
package com.iluwatar.identitymap;
|
||||
|
||||
import org.junit.jupiter.api.Assertions;
|
||||
import org.junit.jupiter.api.Test;
|
||||
|
||||
class PersonTest {
|
||||
@Test
|
||||
void testEquality(){
|
||||
// dummy persons.
|
||||
Person person1 = new Person(1,"Harry",989950022);
|
||||
Person person2 = new Person(2,"Kane",989920011);
|
||||
Assertions.assertNotEquals(person1,person2,"Incorrect equality condition");
|
||||
// person with duplicate nationalID.
|
||||
Person person3 = new Person(2,"John",789012211);
|
||||
// If nationalID is equal then persons are equal(even if name or phoneNum are different).
|
||||
// This situation will never arise in this implementation. Only for testing.
|
||||
Assertions.assertEquals(person2,person3,"Incorrect inequality condition");
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user