Copy and past the content bellow  in a .sh file

#!/bin/bash 

echo -n "Password: "
stty -echo
read PASSWD
stty echo
echo -e "\nYour password is:" $PASSWD

Running the shell script

# ./hiddenpasswd.sh
Password:
Your password is: t$prod123%f

Prerequisites

Install the packages rpmdevtools and rpm-build, these packages contains command line like rpmdev-setuptree and rpmbuild that will help to create the RPM structure

#yum install rpmdevtools rpm-build

The oracle database software must be installed on the machine

Generate the RPM structure

Inside the oracle’s home directory execute the command:

#rpmdev-setuptree

This command will create the following directory structure:

|-- rpmbuild
    |-- BUILD
    |-- RPMS
    |-- SOURCES
    |-- SPECS
    `-- SRPMS

RPM Contents SOURCES

The directory SOURCES must have a tar file with all files desired to be added in the RPM file

#tar -cvf oracle11.tar /home/oracle/.bash_profile /u01/app/oracle/product/11.2.0/rhdb/*

Configuration SPEC file

The directory SPEC is where the spec file with the instructions to create our RPM must be placed

Create a file called oracle11G.spec with the content bellow:

Name: oracle
Version: 11
Release: 2%{?dist}
Summary: Oracle 11G R2
Group:  redhat
License: GNU
URL: http://www.redhat.com
Source0:        oracle11.tar
#BuildRoot:     %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)

Requires: binutils >= 2, glibc >= 2, nss-softokn-freebl >= 3, compat-libstdc++ >= 33, glibc-common >= 2, glibc-devel >= 2, glibc-headers >= 2, elfutils-libelf, elfutils-libelf-devel, gcc >= 4, gcc-c++ >= 4, ksh, libaio, libaio-devel, libgcc >= 4, libstdc++ >= 4, libstdc++-devel >= 4, make >= 3.81, numactl-devel >= 2, sysstat >= 9 libfreebl3.so()(32bit), ld-linux.so.2()(32bit), libc.so()(32bit), libaio.so.1()(32bit), libaio.so()(32bit), libgcc_s.so.1()(32bit), libstdc++.so.6()(32bit), libstdc++.so.5()(32bit)

%description
Oracle 11G R2

%build
mkdir -p $RPM_BUILD_ROOT/home/oracle
cp /home/oracle/.bash_profile $RPM_BUILD_ROOT/home/oracle

mkdir -p $RPM_BUILD_ROOT/u01/app/oracle/product/11.2.0/rhdb/
cp -ra /u01/app/oracle/product/11.2.0/rhdb/* $RPM_BUILD_ROOT/u01/app/oracle/product/11.2.0/rhdb/

%pre
groupadd oinstall
groupadd dba

useradd -g oinstall -G dba oracle
echo redhat|passwd --stdin oracle

%files
/u01/*
/home/*

%post
chown -R oracle:oinstall /u01
chmod -R 775 /u01

%changelog
* Fri Sep 23 2011 Leandro Abite  1.0
- First version

Generating RPM file

The generation of the RPM file is made by the command rpmbuild passing the spec file as parameter

#rpmbuild -ba oracle11G.spec

if every thing is ok the rpm file should be created in the directory SRPMS

Make sure that the module mod_rewrite is being loaded by your apache

We need tell apache the condiction to execute the redirect, edit the file $APACHE_HOME/conf/httpd.conf and add the following lines:

#Turn on the rewrite
RewriteEngine on

#Condiction and rule for redirect
RewriteCond %{REQUEST_URI} ^/(<YOUR URL>)
RewriteRule ^/(.*) https://%{SERVER_NAME}/$1 [R,L]

Sample:
Let’s suppose you need to redirect the URL http://youserver/login.php to https://youserver/login.php, our configuration would be the follwing:

RewriteCond %{REQUEST_URI} ^/(login\.php)
RewriteRule ^/(.*) https://%{SERVER_NAME}/$1 [R,L]

If there are a need to set up more than one URL, just copy and paste the 2 lines above and replace the name of the page.

Once the user request the url http://youserver/login.php he will remain in https even in pages that are not configured in httpd.conf, That happened because that configuration tell apache to get in https when the page login.php is requested, so we need tell Apache to get in http when some other page is requested, this is configured in the file $APACHE_HOME/conf.d/ssl.conf, do the same configuration done in file http.conf

Sample:
Let’s suppose that after the user pass througt the login he will get the home.php page, so add the following lines in the file $APACHE_HOME/conf.d/ssl.conf:

RewriteEngine On

RewriteCond %{REQUEST_URI} ^/(home\.php)
RewriteRule ^/(.*) http://%{SERVER_NAME}/$1 [R,L]

Don’t forget to restart the apache service

It’s done, !!!

1. The id method that return de id of the Item
2. The description method that return the description of the Item

public List<SelectItem> entityToSelectItem(List _items, String _idMethod, String _descMethod)throws Exception {
  List<SelectItem> items = new ArrayList<SelectItem>();

  Method idMethod = null;
  Method descMethod = null;

  for (int i = 0; i < _items.size(); i++) {
    Object item = _items.get(i);
    // On the first run, initialize reflection methods for object
    if (idMethod == null) {
      Class obj = item.getClass();
      idMethod = obj.getMethod(_idMethod, new Class[]{});
      descMethod = obj.getMethod(_descMethod, new Class[]{});
    }
    // invoke Methods
    String id = (String) idMethod.invoke(item, new Object[]{});
    String name = (String) descMethod.invoke(item, new Object[]{});

    SelectItem selectItem = new SelectItem();
    selectItem.setLabel(name);
    selectItem.setValue(id.toString());
    items.add(selectItem);
  }
  return items;
}

My legs after operation

I had my legs operated due a compartmental syndrome!!! you should be asking yourself … what fuck does compartmental syndrome mean????

Compartment syndrome is very common in runners, footballers, usually in high level athletes like me!! LOL… our muscles are covered by a layer called faschia, compartment syndrome occurs when the muscle tries to swell up bigger than the faschia, hence a pressure is put on the muscle, therefore a terrible pain will be felt, in my case it occurred  on anterior tibial muscle, this is the most common place to occurs it.

My surgery was yesterday, I was operated by Dr. Marcelo Padro from HCor in Sao Paulo – Brazil, the surgery took about 40 minutes, to release the pressure he just cut open the faschia, and poof, I got better!!! I’ll be ready to back to phisical activities within a month, I am looking forward to play  a football match without felling any pain.

1. Grant some java privileges to your Oracle database user.
2. Compile java class on Oracle database.
3. Create a Oracle function with the call to java class.

STEP 1 – GRANTS TO YOUR DATABASE USER

Logged as SYS execute the commands bellow:

SQL> EXEC dbms_java.grant_permission('<USERNAME>',
                                     'SYS:java.lang.RuntimePermission',
                                     'writeFileDescriptor', '');

SQL> EXEC dbms_java.grant_permission('<USERNAME>',
                                     'SYS:java.lang.RuntimePermission',
                                     'readFileDescriptor', '');

SQL> EXEC dbms_java.grant_permission('<USERNAME>',
                                     'SYS:java.io.FilePermission',
                                     '/bin/sh', 'execute');

Example:

SQL> EXEC dbms_java.grant_permission('labite',
                                     'SYS:java.lang.RuntimePermission',
                                     'writeFileDescriptor', '');

SQL> EXEC dbms_java.grant_permission('labite',
                                     'SYS:java.lang.RuntimePermission',
                                     'readFileDescriptor', '');

SQL> EXEC dbms_java.grant_permission('labite',
                                     'SYS:java.io.FilePermission',
                                     '/bin/sh', 'execute');

STEP 2 – CREATE AND COMPILE JAVA CLASS

Logged with your database user execute the command bellow:

CREATE OR REPLACE AND COMPILE JAVA SOURCE NAMED "OSCommand" AS
  /*
    Created by: Leandro Abite
    email: leandroabite@yahoo.com.br
  */
  import java.io.*;

  public class OSCommand {

    public static String executeCommand(String command) {
      StringBuffer sb = new StringBuffer();
      try {
        String[] finalCommand;
        if (System.getProperty("os.name").toLowerCase().indexOf("windows") != -1) {
          finalCommand = new String[4];
          finalCommand[0] = "C:\\winnt\\system32\\cmd.exe";
          finalCommand[1] = "/y";
          finalCommand[2] = "/c";
          finalCommand[3] = command;
        } else { // Linux or Unix System
          finalCommand = new String[3];
          finalCommand[0] = "/bin/sh";
          finalCommand[1] = "-c";
          finalCommand[2] = command;
        }
        // Execute the command...
        final Process pr = Runtime.getRuntime().exec(finalCommand);
        // Capture output from STDOUT
        BufferedReader br_in = null;
        try {
          br_in = new BufferedReader(new InputStreamReader(pr.getInputStream()));
          String buff = null;
          while ((buff = br_in.readLine()) != null) {
            sb.append(buff);
            sb.append("\n");
            try {Thread.sleep(100); } catch(Exception e) {}
          }
          br_in.close();
        } catch (IOException ioe) {
          System.out.println("Error printing process output.");
          ioe.printStackTrace();
        } finally {
          try {
            br_in.close();
          } catch (Exception ex) {}
        }
        // Capture output from STDERR
        BufferedReader br_err = null;
        try {
          br_err = new BufferedReader(new InputStreamReader(pr.getErrorStream()));
          String buff = null;
          while ((buff = br_err.readLine()) != null) {
            sb.append("stderr:");
            sb.append(buff);
            sb.append("\n");
            try {Thread.sleep(100); } catch(Exception e) {}
          }
          br_err.close();
        } catch (IOException ioe) {
          System.out.println("Error printing execution errors.");
          ioe.printStackTrace();
        } finally {
          try {
            br_err.close();
          } catch (Exception ex) {}
        }
      }
      catch (Exception ex) {
        System.out.println(ex.getLocalizedMessage());
      }
      return sb.toString();
    }
  };
/

STEP 3 – CREATE FUNCTION TO CALL JAVA

CREATE OR REPLACE FUNCTION oscomm (p_command   IN   VARCHAR2) RETURN VARCHAR2
  AS LANGUAGE JAVA NAME
    'OSCommand.executeCommand (java.lang.String) return java.lang.String';
/

EXECUTION TEST

To execute the os command you have to pass the complete path of the command:

it is wrong!!!!!
 SQL> select oscomm('ls -ltr') from dual;
 OSCOMM('LS-LTR')
 --------------------------------------------------------------------------------
 stderr:/bin/sh: ls: No such file or directory

it is right!!!!!
 SQL> select oscomm('/bin/ls -ltr') from dual;
 OSCOMM('/BIN/LS-LTR')
 --------------------------------------------------------------------------------
 total 44
 -rw-r--r-- 1 oracle oinstall  8385 Sep 11  1998 init.ora
 -rw-r--r-- 1 oracle oinstall 12920 May  3  2001 initdw.ora
 -rw-r----- 1 oracle oinstall    24 Nov 19 17:31 lkDB01
 -rw-rw---- 1 oracle oinstall  1544 Nov 19 17:31 hc_db01.dat
 -rw-r----- 1 oracle oinstall  1536 Feb 10 17:08 orapwdb01
 -rw-r----- 1 oracle oinstall  2560 Feb 18 12:42 spfiledb01.ora

Teiid é uma ferramenta para fazer integração de fontes de dados distintas, com o uso desta é possível fazer a integração entre Oracle, SQLServer, Arquivo Texto, WebService e Etc.. E o melhor de tudo isso!!! é  possível fazer em minutos sem nenhuma linha de codigo, os dados consolidados podem ser acessados por JDBC, ODBC ou Webservices através de um banco de dados virtual.

80% dos projetos de sucesso SOA em grandes empresas fizeram o uso de alguma ferramenta de Data Service, O Metamatrix é o lider disparado entre as ferramentas de Data Service disponiveis no mercado, e agora temos a versão open source desta excelente ferramenta.