• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
Integrating an App with Amazon Web Services SimpleDB - A Matter of Choices
 

Integrating an App with Amazon Web Services SimpleDB - A Matter of Choices

on

  • 3,952 views

There are many ways to integrate an Android app with an Amazon Web Services database. This presentation explores some of those possibilities and the choices I made for my app using the AWS SimpleDB ...

There are many ways to integrate an Android app with an Amazon Web Services database. This presentation explores some of those possibilities and the choices I made for my app using the AWS SimpleDB NoSQL cloud database.

Statistics

Views

Total Views
3,952
Views on SlideShare
3,945
Embed Views
7

Actions

Likes
0
Downloads
41
Comments
0

2 Embeds 7

http://www.verious.com 5
https://duckduckgo.com 2

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    Integrating an App with Amazon Web Services SimpleDB - A Matter of Choices Integrating an App with Amazon Web Services SimpleDB - A Matter of Choices Presentation Transcript

    • Integrating an App with Amazon Web Services SimpleDB “ A Matter of Choices” Presented by Mark Maslyn – mmaslyn@msn.com
    • Amazon Web Services Menu
    • Amazon Web Service Databases
      • RDB (Relational Database)
      • S3 (Large Object Database)
      • SimpleDB (NoSQL Database)
    • Amazon SimpleDB
      • NoSQL Database – Non Relational
      • Distributed - Highly Scalable, Highly Reliable, Incremental Writes
      • Primarily for Database Reads
      • RESTful Calls Passing Credentials and Query
      • Very Low Cost – First 25 Hours Free Each Month.
    • SimpleDB Language Support
    • Whoa… Non – Relational ??? From WikiMedia Commons
    • NoSQL Databases
      • Use “Domains” Instead of “Tables”
      • Don’t Have Fixed Schemas – Easily Add or Remove Columns
      • Variable Number of Fields per Record (Row)
      • Each Record is a List of Name / Value Pairs
      • Everything is a String
      • Record Indexed By A Unique Item ID
      • Implements Most SQL Calls
      • Maintained By Amazon Web Services
    • Android to Amazon Database Model Android Phone For UI and Display Amazon SimpleDB Cloud For Database Heavy Lifting Data Request Data Response Each Does What It Does Best ! Images From HTC and WikiMedia
    • Remote Database Example: Kooaba From www.kooaba.com
    • Kooaba Architecture From www.kooaba.com
    • My Application – Oil Well Information
      • Location (Latitude / Longitude)
      • Well Status
      • Land Survey Boundaries
      • Must Have the Ability to “Drill Down” for More Information
    • Drilling For Oil Amount of Data Generated Depends On How Deep the Well is Drilled A B C D
    • Example NoSQL Row For Geologic Formation Names and Depths Item Key “ 05-10123”, “BLAINE”, “1464”,”ATOKA”,”4744”,”MORROW”,”4854” Name3 Name2 Name1 Value1 Value2 Value3
    • Coding the Connection From Android Image From http://www.vpnchoice.com/blog/wp-content/uploads/2011/06/android-vpn-300x187.jpg
    • Connecting to Amazon SimpleDB private static AmazonSimpleDB sdb = null; public static AmazonSimpleDB getInstance() { if ( sdb == null ) { // pass in the authenication credentials sdb = new AmazonSimpleDBClient( AWSDemo.credentials ); // set the node we want to use sdb.setEndpoint("sdb.us-west-1.amazonaws.com"); } return sdb; }
    • Creating SimpleDB Domains From Android public void createDomain(String domainName) { sdb.createDomain( new CreateDomainRequest(domainName)); }
    • Inserting Records From Android // each row is keyed with a “replaceable” item id followed by // attributes i.e. name / value pairs // construct a list of items to be inserted List<ReplaceableItem> dataList = new ArrayList<ReplaceableItem>(); // populate the list using the item id and the attribute name / value pairs dataList.add( new ReplaceableItem(“05-123”).withAttributes( new ReplaceableAttribute(DBFields. STATE , “CO”, true ), new ReplaceableAttribute(DBFields. COUNTY , “Weld”, true ), new ReplaceableAttribute(DBFields. DRILLING_DATE , “05-11-2011”, true )); // batch insert the list into the SimpleDB database sdb.batchPutAttributes( new BatchPutAttributesRequest( “my_domain” , dataList ));
    • Retrieving Data From Amazon // build your SQL select statement String selectExpression = &quot;select * from &quot; + domain + &quot; where itemName() = '“05-123’”; // construct a select request SelectRequest selectRequest = new SelectRequest(selectExpression); // retrieve a list of matching items (records) List<Item> itemList = sdb.select(selectRequest).getItems(); // loop through each record and extract the attributes from each item for ( int i = 0; i < itemList.size(); i++) { Item item = (Item) itemList.get(i); ArrayList<Attribute> attributeList = (ArrayList<Attribute>) item.getAttributes(); }
    • Question: Since Android Devices Can Use the Internal SQLite Database… When I Would I Use the Internal Database and When Would I Use the Amazon Cloud Database ?
      • Size of Your Database – Size Does Matter
      • APK Maximum of 30 MB – Cloud Unlimited
      • Whether the Data is Static or Subject to Change
      • Whether You Need an Internet Connection For Access
      • Whether You Require Authentication
      It Depends On…
    • My Choices: Local vs. Remote
      • Android SQLite Database
      • 100,000 Colorado Wells
      • Latitude
      • Longitude
      • Status Value
      • 4 MB
      • 54 Colorado Counties
      • Land Survey Information
      • 12 MB
      Amazon SimpleDB 100,000 Colorado Wells Detailed Well Information 21 MB LOCAL REMOTE
    • Locally Stored Data
      • Well Type / Location
      • Land Grid
      • Authentication as part of RESTful Model
      • Drill Down – Provide More Detailed Information
      • No Limit on Amount of Data Accessible
      Internet (Remotely) Accessed Data
    • For Further Information
      • Amazon Web Services For SDK’s, Tutorials,
      • Case Studies and Sample Code :
      • http://aws.amazon.com
      • Mark Maslyn: [email_address]