Completed the assignment

.gitignore

@@ -0,0 +1,22 @@
+
+target/
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+release.properties
+dependency-reduced-pom.xml
+buildNumber.properties
+.mvn/timing.properties
+
+# Avoid ignoring Maven wrapper jar file (.jar files are usually ignored)
+!/.mvn/wrapper/maven-wrapper.jar
+
+# Ignore all IntelliJ Idea files
+.idea/
+out/
+*.iws
+*.iml
+*.ipr
+
+untracked/

configurationapp/src/main/java/com/att/dao/configurations/ConfigurationDao.java

@@ -3,10 +3,7 @@
 import com.att.data.configurations.ConfigValue;
 import org.springframework.stereotype.Service;
 
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
 
 @Service
 public class ConfigurationDao {
@@ -25,24 +22,65 @@ public int getNextId() {
     /**
      * No DB, so store the configs in a map.
      */
-    private Map<String, List<ConfigValue>> currentConfigurations;
-    private IdProvider idProvider;
+    private final Map<String, List<ConfigValue>> currentConfigurations;
+    private final Map<Integer, ConfigValue> allConfigValues;
+    private final IdProvider idProvider;
 
     public ConfigurationDao() {
         idProvider = new IdProvider();
+        // Acknowledging that configurations are different subsets over the same universe of config values
+        allConfigValues = new HashMap<>();
+        createConfigValue("A");
+        createConfigValue("B");
+        createConfigValue("C");
+        createConfigValue("D");
+        createConfigValue("E");
+        createConfigValue("F");
+        createConfigValue("G");
+        createConfigValue("H");
         currentConfigurations = new HashMap<>();
+        ArrayList<ConfigValue> configValues = new ArrayList<>();
+        configValues.add(allConfigValues.get(0));
+        configValues.add(allConfigValues.get(1));
+        configValues.add(allConfigValues.get(2));
+        configValues.add(allConfigValues.get(3));
+        currentConfigurations.put("012018", configValues);
+        configValues = new ArrayList<>();
+        configValues.add(allConfigValues.get(0));
+        configValues.add(allConfigValues.get(2));
+        configValues.add(allConfigValues.get(5));
+        configValues.add(allConfigValues.get(6));
+        configValues.add(allConfigValues.get(7));
+        currentConfigurations.put("022018", configValues);
     }
 
     public List<ConfigValue> getConfigurationsForYearMonth(String yearMonth) {
-        return new ArrayList<>();
+        List<ConfigValue> result = currentConfigurations.get(yearMonth);
+        if (result == null) {
+            return new ArrayList<>();
+        }
+        return result;
     }
 
-    public void addConfiguration(String yearMonth, ConfigValue value) {
-        int newId = idProvider.getNextId();
-
+    public void addConfiguration(String yearMonth, ConfigValue prototype) {
+        ConfigValue newValue = createConfigValue(prototype.getConfigName());
+        List<ConfigValue> values = currentConfigurations.get(yearMonth);
+        if (values == null) {
+            values = new ArrayList<>();
+            currentConfigurations.put(yearMonth, values);
+        }
+        values.add(newValue);
     }
 
     public void removeAllConfigurationsForYearMonth(String yearMonth) {
+        currentConfigurations.remove(yearMonth);
+    }
 
+    private ConfigValue createConfigValue(String name) {
+        int id = idProvider.getNextId();
+        ConfigValue cv = new ConfigValue(name, id);
+        allConfigValues.put(id, cv);
+        return cv;
     }
+
 }

configurationapp/src/main/java/com/att/web/configuarations/ConfigurationController.java

@@ -22,24 +22,21 @@ public ConfigurationController(ConfigurationDao dao) {
     @RequestMapping(value="/{yearMonthNumber}", method=RequestMethod.GET)
     @ResponseBody
     public List<ConfigValue> getConfigurationsForYearMonth(
-            @PathVariable("yearMonthNumber") String yearMonth) {
-
-        return new ArrayList<>();
+            @PathVariable("yearMonthNumber") String yearMonth)
+    {
+        return dao.getConfigurationsForYearMonth(yearMonth);
     }
 
     @RequestMapping(value="/{yearMonthNumber}", method=RequestMethod.DELETE)
     public void deleteConfigurationsForYearMonth(@PathVariable("yearMonthNumber") String yearMonth) {
-        try {
-
-        } catch (Exception ex) {
-
-        }
+        dao.removeAllConfigurationsForYearMonth(yearMonth);
     }
 
     @RequestMapping(value="/{yearMonthNumber}", method={ RequestMethod.POST, RequestMethod.PUT })
     public void addConfigurationForYearMonth(
             @PathVariable("yearMonthNumber") String yearMonth,
-            @RequestBody ConfigValue value) {
-
+            @RequestBody ConfigValue value)
+    {
+        dao.addConfiguration(yearMonth, value);
     }
 }

configurationapp/src/main/resources/static/index.html

@@ -2,7 +2,7 @@
 <html>
 <head>
     <title>Configuration App</title>
-    <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
+    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
     <script src="https://cdn.datatables.net/1.10.19/js/jquery.dataTables.min.js"></script>
     <script src="js/app.js"></script>
     <link rel="stylesheet" href="https://cdn.datatables.net/1.10.19/css/jquery.dataTables.min.css" />
@@ -35,7 +35,9 @@ <h1>Welcome To The Configuration App</h1>
             </table>
         </div>
         <div class="controls">
-            <button id="saveButton">Save Configurations</button>
+            <button id="addButton">Add Configuration</button>
+            <button id="deleteButton">Delete Configurations</button>
+            <button id="refreshButton">Refresh Configurations</button>
         </div>
     </div>
     <script>

configurationapp/src/main/resources/static/js/app.js

@@ -1,25 +1,75 @@
 (function() {
     function App() {
 
-    }
+        this.selectedResourcePath = function () {
+            return '/configuration/' + this.selectedTimePeriod();
+        }
+
+        this.selectedTimePeriod = function () {
+            return $('#timePeriod').val();
+        }
+
+        this.init = function() {
 
-    App.prototype.getData = function() {
-        $.ajax('',{
+            $('#configTable').DataTable({
+                serverSide: true,
+                ajax: {
+                    url: this.selectedResourcePath(),
+                    type: 'GET',
+                    // Necessary because root is not an object with a "data" key
+                    dataSrc: ''
+                },
+                columns: [
+                    { data: 'configId'},
+                    { data: 'configName'}
+                ],
+                scrollY: 300,
+                paging: false,
+                sorting: false,
+                searching: false,
+                info: false
+            });
 
-        }).then(function(data) {
+            $('#addButton').click(function() {
+                let name = prompt("Enter a name for the new configuration:");
+                $.ajax({
+                    type: "POST",
+                    url: app.selectedResourcePath(),
+                    data: JSON.stringify({
+                        configId: -1,
+                        configName: name
+                    }),
+                    contentType: "application/json; charset=utf-8",
+                    dataType: "json",
+                    success:function (successResponse,textStatus,jqXHR) {
+                        $('#configTable').DataTable().ajax.reload();
+                    },
+                    error: function (errorResponse1) {
+                        $('#configTable').DataTable().ajax.reload();
+                    }
+                });
+            });
 
-        })
-    };
+            $('#deleteButton').click(function() {
+                $.ajax({
+                    url: app.selectedResourcePath(),
+                    type: 'DELETE',
+                    success: function() {
+                        $('#configTable').DataTable().ajax.reload();
+                    }
+                });
+            });
 
-    App.prototype.init = function() {
-        $('#configTable').DataTable({
-            scrollY: 300,
-            paging: false,
-            sorting: false,
-            searching: false,
-            info: false
-        });
-    };
+            $('#refreshButton').click(function() {
+                $('#configTable').DataTable().ajax.reload();
+            });
+
+            $('#timePeriod').change(function() {
+                $('#configTable').DataTable().ajax.url(app.selectedResourcePath()).load();
+            });
+        }
+
+    }
 
     window.app = new App;
 })($);