Implementation steps:
Step 1: Create a SOA project with empty composite.
Step 2: Create an XSD.
<?xml
version="1.0" encoding="windows-1252" ?>
<xsd:schema
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns="http://www.example.org"
targetNamespace="http://www.example.org"
elementFormDefault="qualified">
<xsd:element name="Input">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="num1"
type="xsd:string"/>
<xsd:element name="num2"
type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Output">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="result"
type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>
Step 3: Create a Synchronous BPEL service using that schema exposing as a web service.
Step 4: Create a Shell script file and saved in UNIX directory.
Test.sh:
#!/usr/bin/bash
num1=$1
num2=$2
function add(){
sum=`expr
$num1 + $num2`
echo
"$sum"
return $sum
}
add $num1
$num2
Step 5 : Create a Java class(Right click on project⇾ New Galary⇾ Class(Java))
Test.java:
package
invokeshellscriptproject;
import
java.io.*;
public class Test {
public String ShellScript(int i, int
j) throws IOException
{
String Var=null;
try{
Process P;
System.out.println(i);
System.out.println(j);
String strParam = "bash
/soashare/shellscript/test.sh "
+i+" "+j+" ";
P =
Runtime.getRuntime().exec(strParam);
System.out.println("here " + strParam);
BufferedReader br = new
BufferedReader(new InputStreamReader(P.getInputStream()));
String line=null;
while ( (line = br.readLine()) != null){
System.out.println("Output" + ">" + line);
Var=line;
}
System.out.println(line);
System.out.println("Output of Var:-" +Var);
int wait = P.waitFor();
System.out.println("exit code: "+wait);
}
catch (InterruptedException ie)
{
System.out.println("exception
caught");
}
catch (Throwable t)
{
t.printStackTrace();
}
return Var;
}
}
Step 7: Drag and drop a Java embedding activity in the BPEL.
Java_Embedding2:
Test pocob =
new Test();
try{
addAuditTrailEntry("Started
From This Place");
String i =
((oracle.xml.parser.v2.XMLElement)getVariableData("inputVariable","payload","/ns1:Input/ns1:num1")).getFirstChild().getNodeValue();
int k =
Integer.parseInt(i);
addAuditTrailEntry("k
Variable " +k);
String j =
((oracle.xml.parser.v2.XMLElement)getVariableData("inputVariable","payload","/ns1:Input/ns1:num2")).getFirstChild().getNodeValue();
int n =
Integer.parseInt(j);
addAuditTrailEntry("n
Variable " +n);
addAuditTrailEntry("Before
Variable");
String
greetings = pocob.ShellScript(k,n);
addAuditTrailEntry("After
Variable");
addAuditTrailEntry("Value:-
" +greetings);
setVariableData("Var1",greetings); //Var1 is a variable created in BPEL
process to contain result
addAuditTrailEntry("After
Assignment");
} catch(Exception io){
addAuditTrailEntry("Exception
occured:"+io.getMessage());
javax.xml.namespace.QName qName=new
javax.xml.namespace.QName("http://schemas.oracle.com/bpel/extension","remoteFault");
com.oracle.bpel.client.BPELFault
bpelFault=new com.oracle.bpel.client.BPELFault(qName);
throw bpelFault;
}
finally{
pocob=null;
}
Step 8 : Import the java class in the BPEL. location used as packageName.ClassName
<import
location="invokeshellscriptproject.Test"
importType="http://schemas.oracle.com/bpel/extension/java"/>
Step 9 : Assign Var1 to result variable.
