linux process memory

1 command : ps -e -orss=,args= | sort -b -k1,1n | pr -TW$COLUMNS ( List processes by mem usage )

2 ps fauxwww

java assert doesn't work

You need use -ea option to execute your java class.

ORA-12560: TNS:protocol adapter error (DBD ERROR: OCIServerAttach)

Microsoft Windows [Version 5.2.3790]
(C) Copyright 1985-2003 Microsoft Corp.

C:\Documents and Settings\Administrator.DOMAIN>asmcmd
"asmcmd: the environment variable ORACLE_HOME is not set."

C:\Documents and Settings\Administrator.DOMAIN>set ORACLE_HOME=B:\oracle\product
\10.2.0\db_1

C:\Documents and Settings\Administrator.DOMAIN>set ORACLE_SID=RAC

C:\Documents and Settings\Administrator.DOMAIN>asmcmd
ORA-12560: TNS:protocol adapter error (DBD ERROR: OCIServerAttach)
C:\Documents and Settings\Administrator.DOMAIN>set ORACLE_SID=RAC1

C:\Documents and Settings\Administrator.DOMAIN>asmcmd
asmcmd: command disallowed by current instance type
C:\Documents and Settings\Administrator.DOMAIN>set ORACLE_SID=+ASM1

C:\Documents and Settings\Administrator.DOMAIN>asmcmd
ASMCMD>

I think i fixed it .. thanks anyways.. i was doing major mistakes... but thanks for responding


TAG: ORA-12560: TNS:protocol adapter error (DBD ERROR: OCIServerAttach)

sun.security.validator.ValidatorException: PKIX path validation failed

javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: basic constraints check failed: pathLenConstraint violated - this cert must be the last cert in the certification path
 at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Alerts.java:174)
 at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1611)
 at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.java:187)
 at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.java:181)
 at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1035)
 at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:124)
 at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Handshaker.java:516)
 at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Handshaker.java:454)
 at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:884)
 at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1112)
 at com.sun.net.ssl.internal.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:623)
 at com.sun.net.ssl.internal.ssl.AppOutputStream.write(AppOutputStream.java:59)
 at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
 at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
 at org.apache.commons.httpclient.HttpConnection.flushRequestOutputStream(HttpConnection.java:828)
 at org.apache.commons.httpclient.HttpMethodBase.writeRequest(HttpMethodBase.java:2116)
 at org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:1096)
 at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:398)
 at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
 at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
 at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)
 at com.my.FlagIt.main(FlagIt.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: basic constraints check failed: pathLenConstraint violated - this cert must be the last cert in the certification path
 at sun.security.validator.PKIXValidator.doValidate(PKIXValidator.java:251)
 at sun.security.validator.PKIXValidator.doValidate(PKIXValidator.java:234)
 at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:158)
 at sun.security.validator.Validator.validate(Validator.java:218)
 at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:126)
 at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:209)
 at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:249)
 at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1014)
 ... 17 more
Caused by: java.security.cert.CertPathValidatorException: basic constraints check failed: pathLenConstraint violated - this cert must be the last cert in the certification path
 at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(PKIXMasterCertPathValidator.java:139)
 at sun.security.provider.certpath.PKIXCertPathValidator.doValidate(PKIXCertPathValidator.java:326)
 at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(PKIXCertPathValidator.java:178)
 at java.security.cert.CertPathValidator.validate(CertPathValidator.java:250)
 at sun.security.validator.PKIXValidator.doValidate(PKIXValidator.java:246)
 ... 24 more


Resolution:

Add these codes before your codes:
X509TrustManager tm = new X509TrustManager() {
   @Override
   public
   X509Certificate[] getAcceptedIssuers() {
    return null;
   }
   @Override
   public void checkClientTrusted(X509Certificate[] arg0, String arg1)
     throws CertificateException {
    // TODO Auto-generated method stub
   
   }
   @Override
   public void checkServerTrusted(X509Certificate[] arg0, String arg1)
     throws CertificateException {
    // TODO Auto-generated method stub
   
   }
  };
  SSLContext ctx;
 
 
   int port = 443;
  
   //Protocol https = new Protocol("https", new AuthSSLProtocolSocketFactory(), port);
   //
   //Protocol https = new Protocol("https", new MySocketFactory(), port);
   //new EasySSLProtocolSocketFactory();
   Protocol https = new Protocol("https", new AuthSSLProtocolSocketFactory(), port);
  
   Protocol.registerProtocol("https", https);
  
   try {
    ctx = SSLContext.getInstance("SSL");
    ctx.init(null, new TrustManager[] { tm }, null);
    SSLContext.setDefault(ctx);
   } catch (NoSuchAlgorithmException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   } catch (KeyManagementException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }


Add this class:
package com.my;
import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.UnknownHostException;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.SocketFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import org.apache.commons.httpclient.ConnectTimeoutException;
import org.apache.commons.httpclient.params.HttpConnectionParams;
import org.apache.commons.httpclient.protocol.SecureProtocolSocketFactory;

public class AuthSSLProtocolSocketFactory implements
  SecureProtocolSocketFactory {
 private SSLContext sslcontext = null;
 private SSLContext createSSLContext() {
  SSLContext sslcontext = null;
  try {
   sslcontext = SSLContext.getInstance("SSL");
   sslcontext.init(null, new TrustManager[]{new TrustAnyTrustManager()}, new java.security.SecureRandom());
  } catch (NoSuchAlgorithmException e) {
   e.printStackTrace();
  } catch (KeyManagementException e) {
   e.printStackTrace();
  }
  return sslcontext;
 }
 private SSLContext getSSLContext() {
  if (this.sslcontext == null) {
   this.sslcontext = createSSLContext();
  }
  return this.sslcontext;
 }
 public Socket createSocket(Socket socket, String host, int port,
   boolean autoClose) throws IOException, UnknownHostException {
  return getSSLContext().getSocketFactory().createSocket(socket, host,
    port, autoClose);
 }
 public Socket createSocket(String host, int port) throws IOException,
   UnknownHostException {
  return getSSLContext().getSocketFactory().createSocket(host, port);
 }
 public Socket createSocket(String host, int port, InetAddress clientHost,
   int clientPort) throws IOException, UnknownHostException {
  return getSSLContext().getSocketFactory().createSocket(host, port,
    clientHost, clientPort);
 }
 public Socket createSocket(String host, int port, InetAddress localAddress,
   int localPort, HttpConnectionParams params) throws IOException,
   UnknownHostException, ConnectTimeoutException {
  if (params == null) {
   throw new IllegalArgumentException("Parameters may not be null");
  }
  int timeout = params.getConnectionTimeout();
  SocketFactory socketfactory = getSSLContext().getSocketFactory();
  if (timeout == 0) {
   return socketfactory.createSocket(host, port, localAddress,
     localPort);
  } else {
   Socket socket = socketfactory.createSocket();
   SocketAddress localaddr = new InetSocketAddress(localAddress,
     localPort);
   SocketAddress remoteaddr = new InetSocketAddress(host, port);
   socket.bind(localaddr);
   socket.connect(remoteaddr, timeout);
   return socket;
  }
 }

  private static class TrustAnyTrustManager implements X509TrustManager {
       
         public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
         }
   
         public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
         }
   
         public X509Certificate[] getAcceptedIssuers() {
             return new X509Certificate[]{};
         }
  /* @Override
   public
   X509Certificate[] getAcceptedIssuers() {
    return null;
   }
   @Override
   public void checkClientTrusted(X509Certificate[] arg0, String arg1)
     throws CertificateException {
    // TODO Auto-generated method stub
   
   }
   @Override
   public void checkServerTrusted(X509Certificate[] arg0, String arg1)
     throws CertificateException {
    // TODO Auto-generated method stub
   
   }*/
     }
 
}


That's it.

Adjust tomcat java heap space

JAVA_OPTS="${JAVA_OPTS} -Xms1024m -Xmx1024m"

Please change catlinda.sh

how to use ActionBar Sherlock

http://androidfragments.blogspot.com/2011/10/how-to-use-actionbar-sherlock.html

How to use ActionBar Sherlock

Note: ActionBarSherlock has changed significantly since the time of this posting. We will update this post as soon as we can, but in the mean time, please refer to the official documentation at http://actionbarsherlock.com/usage.html

The Android ActionBar is a new widget that replaces the title bar, provides a location for menus and buttons, and provides a source of commonality between Android apps. The Action Bar is included by default in all activities that target Android 3.0 or greater, but in order to get the same effect in earlier versions of android, you were stuck writing a custom solution. ActionBar Sherlock is a nice library that allows you to solve this problem by letting you add ActionBars to your apps all the way back to Android 1.6. When used on Honeycomb and later it uses the default Android classes but on earlier versions it provides a custom replacement that still maintains compatibility with the newer API.

Here's a run down on how to add the library to your project. Note that since ActionBar Sherlock is an extension of the compatibility support library, you should remove the combatibility support jar if you were using it before since it is included with ActionBar Sherlock.

1. Download the .zip/.tgz and extract it somewhere
2. Go to eclipse and choose File->New->Project
3. Choose Android Project
4. Select Create project from existing source and then browse to the library folder inside the folder you just extracted the .zip/.tgz into
5. Build Target should be the latest, but your minSdkVersion can be less
6. Finish the wizard, then right click on the newly created project and go to properties
7. Under the Android heading, you should see a section for Library with a checkbox IsLibrary. Make sure that's checked.
8. Now go to the properties for your Android project, then under the Android heading and the Library section choose Add...
9. You should see the actionbarsherlock library, add this to your project
10. Lastly, if you were using the compatibility support, you need to delete that jar since it's included in ActionBarSherlock After you have added the library to your project, you will need to take some additional steps to ensure it is being used.

1. Add a theme to your application in the AndroidManifest.xml

?

<application android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/Theme.Sherlock">

2. Make sure that your activity extends FragmentActivity

?

public class AbbreviationsActivity extends FragmentActivity {

Now you're done! If you want to interact with your ActionBar through Java, make sure you use getSupportActionBar() instead of the standard getActionBar() to get the ActionBar Sherlock version of the action bar. The ActionBar Sherlock website along with the Android docs has information about theming, adding menus and buttons, and changing text and icons. Enjoy!

fw: get current username in Spring security

http://www.mkyong.com/spring-security/get-current-logged-in-username-in-spring-security/

In this article, we show you three ways to get current logged in username in Spring Security.

1. SecurityContextHolder + Authentication.getName()

import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
 
@Controller
public class LoginController {
 
  @RequestMapping(value="/login", method = RequestMethod.GET)
  public String printUser(ModelMap model) {
 
      Authentication auth = SecurityContextHolder.getContext().getAuthentication();
      String name = auth.getName(); //get logged in username
 
      model.addAttribute("username", name);
      return "hello";
 
  }
  //...

2. SecurityContextHolder + User.getUsername()

import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.User;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
 
@Controller
public class LoginController {
 
  @RequestMapping(value="/login", method = RequestMethod.GET)
  public String printUser(ModelMap model) {
 
      User user = (User)SecurityContextHolder.getContext().getAuthentication().getPrincipal();
      String name = user.getUsername(); //get logged in username
 
      model.addAttribute("username", name);
      return "hello";
 
  }
  //...

3. UsernamePasswordAuthenticationToken

This is more elegant solution, in runtime, Spring will inject “UsernamePasswordAuthenticationToken” into the “Principal” interface.

import java.security.Principal;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
 
@Controller
public class LoginController {
 
  @RequestMapping(value="/login", method = RequestMethod.GET)
  public String printWelcome(ModelMap model, Principal principal ) {
 
      String name = principal.getName(); //get logged in username
      model.addAttribute("username", name);
      return "hello";
 
  }
  //...

Download Source Code

Download it – Spring-Security-Get-Logged-In-Username.zip (9 KB)