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Add list position changing Lambdas

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Initial shot at repositioning Lambdas.
This commit is contained in:
NMerz 2020-11-14 16:21:18 -05:00
parent 421fceb364
commit 35f709fcd9
4 changed files with 118 additions and 2 deletions
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60
Lambdas/Lists/ListReposition/src/ListRepositionActor.java Normal file
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@ -0,0 +1,60 @@
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Map;
public class ListRepositionActor implements CallHandler {
private Connection connection;
private String cognitoID;
public ListRepositionActor(Connection connection, String cognitoID) {
this.connection = connection;
this.cognitoID = cognitoID;
}
final private String GET_PRIOR_POSITON = "SELECT uiPosition FROM ListSharee WHERE userID = ? AND listID = ?;";
final private String SET_NEW_POSITON = "UPDATE ListSharee SET uiPosition = ? WHERE userID = ? AND listID = ?;";
final private String DECREMENT_HIGHER_POSITIONS = "UPDATE ListSharee SET uiPosition = uiPosition - 1 WHERE uiPosition > ? AND userID = ?;";
final private String INCREMENT_GEQ_POSITIONS = "UPDATE ListSharee SET uiPosition = uiPosition + 1 WHERE uiPosition >= ? AND userID = ?;";
public Object conductAction(Map<String, Object> bodyMap, HashMap<String, String> queryString, String cognitoID) throws SQLException {
Integer listID = (Integer) bodyMap.get("listID");
Integer newPosition = (Integer) bodyMap.get("newPosition");
PreparedStatement getPriorPosition = connection.prepareStatement(GET_PRIOR_POSITON);
getPriorPosition.setString(1, cognitoID);
getPriorPosition.setInt(2, listID);
ResultSet priorPositionRS = getPriorPosition.executeQuery();
if (!priorPositionRS.next()) {
throw new IllegalArgumentException("Bad listID for user");
}
Integer priorPosition = priorPositionRS.getInt("uiPosition");
PreparedStatement fillPriorPosition = connection.prepareStatement(DECREMENT_HIGHER_POSITIONS);
fillPriorPosition.setInt(1, priorPosition);
fillPriorPosition.setString(2, cognitoID);
System.out.println(fillPriorPosition);
fillPriorPosition.executeUpdate();
PreparedStatement openNewPosition = connection.prepareStatement(INCREMENT_GEQ_POSITIONS);
openNewPosition.setInt(1, priorPosition);
openNewPosition.setString(2, cognitoID);
System.out.println(openNewPosition);
openNewPosition.executeUpdate();
PreparedStatement setNewPosition = connection.prepareStatement(SET_NEW_POSITON);
setNewPosition.setInt(1, newPosition);
setNewPosition.setString(2, cognitoID);
setNewPosition.setInt(3, listID);
System.out.println(setNewPosition);
setNewPosition.executeUpdate();
connection.commit();
return null;
}
}

11
Lambdas/Lists/ListReposition/src/ListRepositionPUT.java Normal file
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@ -0,0 +1,11 @@
import com.amazonaws.services.lambda.runtime.Context;
import com.amazonaws.services.lambda.runtime.RequestHandler;
import java.util.Map;
public class ListRepositionPUT implements RequestHandler<Map<String,Object>, Object> {
public Object handleRequest(Map<String, Object> inputMap, Context unfilled) {
return BasicHandler.handleRequest(inputMap, unfilled, ListRepositionActor.class);
}
}

14
Lambdas/Lists/ListShare/src/ListSharer.java
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@ -22,7 +22,8 @@ public class ListSharer implements CallHandler {
}
final private String CHECK_ACCESS = "SELECT * from ListSharee WHERE listID = ? AND userID = ?;";
final private String SHARE_LIST = "INSERT INTO ListSharee(listID, userID, permissionLevel) VALUES(?, ?, ?) ON DUPLICATE KEY UPDATE permissionLevel = ?;";
final private String SHARE_LIST = "INSERT INTO ListSharee(listID, userID, permissionLevel, ) VALUES(?, ?, ?, ?) ON DUPLICATE KEY UPDATE permissionLevel = ?;";
private final String UI_POSITION_CHECK = "SELECT Max(uiPosition) as maxUIPosition FROM ListSharee WHERE userID = ?;";
public Object conductAction(Map<String, Object> bodyMap, HashMap<String, String> queryString, String cognitoID) throws SQLException {
PreparedStatement checkAccess = connection.prepareStatement(CHECK_ACCESS);
@ -62,12 +63,21 @@ public class ListSharer implements CallHandler {
// throw new InputMismatchException("The specified user already has access");
// }
PreparedStatement uiPositionCheck = connection.prepareStatement(UI_POSITION_CHECK);
uiPositionCheck.setString(1, shareWithSub);
ResultSet uiPositionCheckRS = uiPositionCheck.executeQuery();
int nextPosition = 1;
if (uiPositionCheckRS.next()) {
nextPosition = uiPositionCheckRS.getInt("maxUIPosition") + 1;
}
PreparedStatement shareList = connection.prepareStatement(SHARE_LIST);
shareList.setInt(1, listID);
shareList.setString(2, shareWithSub);
Integer permissionLevel = Integer.parseInt(bodyMap.get("permissionLevel").toString());
shareList.setInt(3, permissionLevel);
shareList.setInt(4, permissionLevel);
shareList.setInt(4, nextPosition);
shareList.setInt(5, permissionLevel);
shareList.executeUpdate();
connection.commit();
return null;

35
Listify/app/src/main/java/com/example/listify/data/ListReposition.java Normal file
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@ -0,0 +1,35 @@
package com.example.listify.data;
public class ListReposition {
Integer listID;
Integer newPosition;
public ListReposition(Integer listID, Integer newPosition) {
this.listID = listID;
this.newPosition = newPosition;
}
@Override
public String toString() {
return "ListReposition{" +
"listID=" + listID +
", newPosition=" + newPosition +
'}';
}
public Integer getListID() {
return listID;
}
public void setListID(Integer listID) {
this.listID = listID;
}
public Integer getNewPosition() {
return newPosition;
}
public void setNewPosition(Integer newPosition) {
this.newPosition = newPosition;
}
}