Sunday, December 4, 2016

XCOPY

Copy new/updated files from source folder on D to destination folder on K

xcopy D:\Documents\Pictures K:\Documents\Pictures /s /d

Thursday, December 1, 2016

Linux Notes

uname -r: shows kernel version
lsb_release -a: shows operating system/distribution
free -m: shows memory
Ubuntu/Lubuntu/Centos/Raspberry Pi (Raspbian, Debian based distribution)

Thursday, November 17, 2016

Joda-Time DateTimeFormat

import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;

DateTimeFormatter formatter = DateTimeFormat.forPattern("dd/MM/yyyy HH:mm:ss");
DateTime showDate = formatter.parseDateTime("02/02/2016 08:02:00");

facebook4j Events

import facebook4j.Event;
import facebook4j.Facebook;
import facebook4j.FacebookException;
import facebook4j.FacebookFactory;
import facebook4j.ResponseList;
import facebook4j.auth.AccessToken;

Facebook facebook = new FacebookFactory().getInstance();
facebook.setOAuthAppId(appId, appSecret);
facebook.setOAuthPermissions(commaSeparetedPermissions);
facebook.setOAuthAccessToken(new AccessToken(accessToken, null));

ResponseList<Event> events;
int count;
try {
events = facebook.getEvents();
count = events.size();
} catch (FacebookException e) {
e.printStackTrace();
}

Saturday, October 29, 2016

Installing MobaXterm

Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more


Wednesday, September 14, 2016

Sunday, August 28, 2016

Monday, August 8, 2016

Today I Read: How to use Servlets and Ajax

 How to use Servlets and Ajax
 http://stackoverflow.com/questions/4112686/how-to-use-servlets-and-ajax/

Friday, August 5, 2016

MemcacheService, BigInteger, and Byte Array

MemcacheService syncCache = MemcacheServiceFactory.getMemcacheService();
IdentifiableValue oldValue = syncCache.getIdentifiable(key);
BigInteger.valueOf(0).toByteArray()
byte[] newValue = increment((byte[]) oldValue.getValue());
new BigInteger(newValue).intValue()
syncCache.putIfUntouched(key, oldValue, newValue)
break;
Thread.sleep(delayMs);

private byte[] increment(byte[] oldValue) {
    long val = new BigInteger(oldValue).intValue();
    val++;
    return BigInteger.valueOf(val).toByteArray();
}

Thursday, August 4, 2016

Oracle decode() and sign() functions and count(*) - count(COLUMN_NAME)

decode(sign(count(*) - count(COLUMN_NAME)), 1, 'Y', 'N')

1) count(*) - count(COLUMN_NAME): returns a count of non-null records, used with group by
2) sign(NUMBER): returns sign of NUMBER
    If NUMBER < 0, then sign returns -1
    If NUMBER = 0, then sign returns 0
    If NUMBER > 0, then sign returns 1
3) decode(sign(NUMBER), 1, 'Y', 'N'): if NUMBER is greater than 0, then returns 'Y', otherwise returns 'N'

Tuesday, July 26, 2016

.NET Oracle Client

Method 1: Web.config
<configuration>
  <configSections>
    <section name="dataConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.DatabaseSettings, Microsoft.Practices.EnterpriseLibrary.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null"/>
    <section name="oracle.dataaccess.client" type="System.Data.Common.DbProviderConfigurationHandler, System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
    <section name="oracle.manageddataaccess.client" type="OracleInternal.Common.ODPMSectionHandler, Oracle.ManagedDataAccess, Version=4.121.2.0, Culture=neutral, PublicKeyToken=89b483f429c47342"/>
  </configSections>
  <dataConfiguration defaultDatabase="DefaultDatabase">
    <providerMappings>
      <add databaseType="Microsoft.Practices.EnterpriseLibrary.Data.DDTekOracle.OracleDatabase, Microsoft.Practices.EnterpriseLibrary.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null" name="DDTek.Oracle"/>
      <add databaseType="Microsoft.Practices.EnterpriseLibrary.Data.Oracle.OracleDatabase, Microsoft.Practices.EnterpriseLibrary.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null" name="Oracle.DataAccess.Client" />
    </providerMappings>
  </dataConfiguration>
  <connectionStrings>
    <add name="ConnectionString1" providerName="Oracle.DataAccess.Client" connectionString="User Id=;Password=;Data Source=; Pooling=true; Min Pool Size=1; Max Pool Size=50; Incr Pool Size=10; Decr Pool Size=10; Connection Timeout=50; Validate Connection=true;"/>
  </connectionStrings>
</configuration>

Method 2: Web.config
<connectionStrings>
    <add name="ConnectionString1" providerName="Oracle.ManagedDataAccess.Client" connectionString="User Id=;Password=;Data Source=; Pooling=true; Min Pool Size=1; Max Pool Size=50; Incr Pool Size=10; Decr Pool Size=10; Connection Timeout=50; Validate Connection=true;"/>
  </connectionStrings>
<system.data>
    <DbProviderFactories>
      <remove invariant="Oracle.ManagedDataAccess.Client" />
      <remove invariant="Oracle.DataAccess.Client" />
      <add name="Oracle Data Provider for .NET"
           invariant="Oracle.DataAccess.Client"
           description="Oracle Data Provider for .NET"
           type="Oracle.DataAccess.Client.OracleClientFactory, Oracle.DataAccess, Version=4.121.2.0, Culture=neutral, PublicKeyToken=89b483f429c47342" />
      <add name="ODP.NET, Managed Driver"
           invariant="Oracle.ManagedDataAccess.Client"
           description="Oracle Data Provider for .NET, Managed Driver"
           type="Oracle.ManagedDataAccess.Client.OracleClientFactory, Oracle.ManagedDataAccess, Version=4.121.1.0, Culture=neutral, PublicKeyToken=89b483f429c47342" />
    </DbProviderFactories>
  </system.data>

Method 3: Machine.config
<system.data>
    <DbProviderFactories>
    <add name="ODP.NET, Managed Driver" invariant="Oracle.ManagedDataAccess.Client" description="Oracle Data Provider for .NET, Managed Driver" type="Oracle.ManagedDataAccess.Client.OracleClientFactory, Oracle.ManagedDataAccess, Version=4.121.2.0, Culture=neutral, PublicKeyToken=89b483f429c47342" />
    </DbProviderFactories>   
</system.data>

Sunday, July 24, 2016

Issue: Unable to fetch transient dependency com.google.http-client:google-http-client:[1.19.0,2.0)

Issue:

Unable to fetch transient dependency com.google.http-client:google-http-client:[1.19.0,2.0)

Solution

<dependency>
        <groupId>com.google.appengine.tools</groupId>
        <artifactId>appengine-gcs-client</artifactId>
        <version>0.6</version>
        <exclusions>
            <exclusion>
                <!-- TODO remove me after the issue is fixed https://github.com/google/google-http-java-client/issues/330 -->
                <groupId>com.google.http-client</groupId>
                <artifactId>google-http-client</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

    <!-- Add the transitive dependency explicity  -->
    <dependency>
        <groupId>com.google.http-client</groupId>
        <artifactId>google-http-client</artifactId>
        <version>1.22.0</version>
    </dependency>

Wednesday, July 6, 2016

Bootstrap Carousel

http://www.tutorialrepublic.com/codelab.php?topic=bootstrap&file=carousel
https://bootstrapbay.com/blog/bootstrap-3-carousel-tutorial/

GAE URLFetchService, JDOM2, Amazon ItemSearch, Bytes Array to String

https://github.com/GoogleCloudPlatform/java-docs-samples/tree/master/appengine/urlfetch
http://docs.aws.amazon.com/AWSECommerceService/latest/DG/ItemSearch.html
http://stackoverflow.com/questions/4661680/how-to-read-fetch-the-xml-file-from-an-url-using-java
http://stackoverflow.com/posts/4661726/revisions
http://www.tutorialspoint.com/java_xml/java_jdom_query_document.htm
http://www.studytrails.com/java/xml/jdom2/java-xml-jdom2-xpath.jsp
http://www.tutorialspoint.com/java_xml/java_jdom_parse_document.htm
https://ikaisays.com/2010/06/29/using-asynchronous-urlfetch-on-java-app-engine/
byte[] bytes = example.getBytes();
String decoded = new String(bytes, "UTF-8");

Thursday, June 30, 2016

.NET 4.5.2 TLS1.2

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319]
"SchUseStrongCrypto"=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319]
"SchUseStrongCrypto"=dword:00000001

Tuesday, June 21, 2016

GAE Modules/Services

http://stackoverflow.com/questions/23055616/appengine-modules-dispatch-xml-routing-with-custom-domain
https://cloud.google.com/appengine/docs/java/config/dispatchref
https://github.com/GoogleCloudPlatform/appengine-modules-sample-java
https://cloud.google.com/appengine/docs/java/microservices-on-app-engine
https://cloud.google.com/appengine/docs/java/modules/converting

Thursday, June 16, 2016

Java HashMap

Map<Integer,String> uniqueMap = new HashMap<Integer,String>();
List<Value> list = new ArrayList<Value>(map.values());
map.size() 

Thursday, April 21, 2016

Tell Git to Ignore File Changes

git update-index --assume-unchanged doc.asciidoc
git ls-files -v | grep '^[hsmrck?]' | cut -c 3-
git update-index --no-assume-unchanged doc.asciidoc

Clean Working Directory with Git

git reset --hard
git clean -xdf

Note: reset all files to their last-committed state and remove all uncommitted files

Tuesday, April 12, 2016

Monday, April 11, 2016

TIL: Oracle BPEL Process Manager

BPEL is the standard for assembling a set of discrete services into an end-to-end process flow, radically reducing the cost and complexity of process integration initiatives. Oracle BPEL Process Manager offers a comprehensive and easy-to-use infrastructure for creating, deploying and managing BPEL business processes. 

 http://www.oracle.com/technetwork/middleware/bpel/overview/index.html