Tutorials > Program model > Create new business logic > Code reference

MyNewControllerCmdImpl sample code

Example of MyNewControllerCmdImpl sample code.

package com.ibm.commerce.sample.commands;

//*-------------------------------------------------------------------
//* Licensed Materials - Property of IBM
//*
//* WebSphere Commerce //*
//* (c) Copyright International Business Machines Corporation.
2001, 2003, 2005
//* All rights reserved.
//*
//* US Government Users Restricted Rights - Use, duplication or
//* disclosure restricted by GSA ADP Schedule Contract with IBM
Corp.
//*
//*-------------------------------------------------------------------
//* The sample contained herein is provided to you "AS IS".
//*
//* It is furnished by IBM as a simple example and has not been 
//* thoroughly tested under all conditions. IBM, therefore, cannot
guarantee its 
//* reliability, serviceability or functionality. 
//*
//* This sample may include the names of individuals, companies, brands 
//* and products in order to illustrate concepts as completely as 
//* possible. All of these names
//* are fictitious and any similarity to the names and addresses
used by 
//* actual persons or business enterprises is entirely
coincidental.
//*---------------------------------------------------------------------


/*
/// Import Section 1 ///////////////////////////////
import com.ibm.commerce.sample.databeans.MyNewDataBean;
/// End of Import Section 1 ////////////////////////
*/


/*
/// Import Section 2 ///////////////////////////////
import com.ibm.commerce.extension.objects.BonusAccessBean;
import com.ibm.commerce.sample.databeans.BonusDataBean;
/// End of Import Section 2 ////////////////////////
*/

import com.ibm.commerce.datatype.TypedProperty;
import com.ibm.commerce.user.objects.UserRegistryAccessBean;
import com.ibm.commerce.exception.ECApplicationException;
import com.ibm.commerce.exception.ECException;
import com.ibm.commerce.exception.ECSystemException;
import com.ibm.commerce.exception.ParameterNotFoundException;
import com.ibm.commerce.ras.ECMessage;
import com.ibm.commerce.ras.ECMessageHelper;
import com.ibm.commerce.server.ECConstants;
import com.ibm.commerce.command.CommandFactory;
import com.ibm.commerce.command.ControllerCommandImpl;
import com.ibm.commerce.accesscontrol.AccessVector;


public class MyNewControllerCmdImpl extends ControllerCommandImpl
implements MyNewControllerCmd {

private static final String COPYRIGHT =
com.ibm.commerce.copyright.IBMCopyright.SHORT_COPYRIGHT;

/*
/// Section 1 ////////////////////////////////////////////////
/// create and implement controller command's fields and accessors
(setter/getter methods)

private java.lang.String userName = null;
private java.lang.Integer points;


public java.lang.Integer getPoints() {
return points;
}

public java.lang.String getUserName() {
return userName;
}

public void setPoints(java.lang.Integer newPoints) {
points = newPoints;
}

public void setUserName(java.lang.String newUserName) {
userName = newUserName;
}

/// End of Section 1 /////////////////////////////////////////
*/


/*
/// Section 2 ////////////////////////////////////////////////
/// create a user registry accessbean resource instance variable

private UserRegistryAccessBean rrb = null;

/// End of Section 2 /////////////////////////////////////////
*/


/*
/// Section 3 ////////////////////////////////////////////////
/// Create an instance variable of type AccessVector to hold the
resources
/// and a BonusAccessBean instance variable for access control
purposes.

private AccessVector resources = null;
private BonusAccessBean bb = null;

/// End of Section 3 /////////////////////////////////////////
*/


/*
/// AccessControl Section ////////////////////////////////////

public AccessVector getResources() throws ECException{

if (resources == null ) {

/// use UserRegistryAccessBean to check user reference number

String refNum = null;
String methodName = "getResources";

rrb = new UserRegistryAccessBean();

try {
rrb = rrb.findByUserLogonId(getUserName());
refNum = rrb.getUserId();
} catch (javax.ejb.FinderException e) {
throw new
ECSystemException(ECMessage._ERR_FINDER_EXCEPTION,this.getClass().getName(),methodName,e);
} catch (javax.naming.NamingException e) {
throw new
ECSystemException(ECMessage._ERR_NAMING_EXCEPTION,this.getClass().getName(), methodName,e);
} catch (java.rmi.RemoteException e) {
throw new
ECSystemException(ECMessage._ERR_REMOTE_EXCEPTION,this.getClass().getName(), methodName,e);
} catch (javax.ejb.CreateException e) {
throw new
ECSystemException(ECMessage._ERR_CREATE_EXCEPTION,this.getClass().getName(), methodName,e);
}


/// find the bonus bean for this registered user

bb = new com.ibm.commerce.extension.objects.BonusAccessBean();

try {
if (refNum != null) {
bb.setInitKey_memberId(new Long(refNum));
bb.refreshCopyHelper();
resources = new AccessVector(bb);
}
} catch (javax.ejb.FinderException e) {

///doesn't have a bonus object so return the container that will
hold the bonus object when it is created
resources = new AccessVector(rrb);
return resources;

} catch (javax.naming.NamingException e) {
throw new ECSystemException(ECMessage._ERR_NAMING_EXCEPTION, this.getClass().getName(), methodName);
} catch (java.rmi.RemoteException e) {
throw new ECSystemException(ECMessage._ERR_REMOTE_EXCEPTION, this.getClass().getName(), methodName);
} catch (javax.ejb.CreateException e) {
throw new ECSystemException(ECMessage._ERR_CREATE_EXCEPTION, this.getClass().getName(), methodName);
}

}
return resources;
}

/// End of AccessControl Section //////////////////////////////////
*/


/**
* This constructor calls the superclass constructor.
*/
public MyNewControllerCmdImpl() {
super();
}



/**
* The business logic for this controller command. For this default
implementation
* we simply call validateParameters. Command writers who overwrite
this method
* call super() as the first line in their method if they want to
call validateParameters.
*
* @exception com.ibm.commerce.exception.ECException An ECException
is thrown in the case of an error .
*/
public void performExecute() throws ECException {

/// perform server side parameter checking

super.performExecute();

/*
/// Section 1 ////////////////////////////////////////////////
/// Create a new TypedProperties for output purposes.

TypedProperty rspProp = new TypedProperty();

/// End of section 1 /////////////////////////////////////////
*/

/*
/// Section 2 ////////////////////////////////////////////////

/// The controller command pass in variables to the JSP page

/// add additional parameters in controller command to rspProp for
response
String message1 = "Hello from IBM!";

rspProp.put("controllerParm1", message1);
rspProp.put("controllerParm2", "Have a nice day!");

/// End of section 2/////////////////////////////////////////
*/


/*
/// Section 3A/////////////////////////////////////////

/// instantiate the MyNewDataBean databean and set the properties, then add the instance to resProp for response
MyNewDataBean mndb = new MyNewDataBean();
mndb.setCallingCommandName(this.getClass().getName());
mndb.setCalledByControllerCmd(true);

/// end of section 3A/////////////////////////////////////////
*/

/*
/// Section 3C/////////////////////////////////////////

// pass the input information to the databean
mndb.setUserName(this.getUserName());
mndb.setPoints(this.getPoints());

/// end of section 3C/////////////////////////////////////////
*/

/*
/// Section 3B/////////////////////////////////////////
rspProp.put("mndbInstance", mndb);

/// end of section 3B/////////////////////////////////////////
*/




/// Area 4 ////////////////////////////////////////////////
/*
/// Section 4A
/// The controller command calls a task command

MyNewTaskCmd cmd = null;

try {

cmd = (MyNewTaskCmd)
CommandFactory.createCommand("com.ibm.commerce.sample.commands.MyNewTaskCmd", getStoreId());

// this is required for all commands
cmd.setCommandContext(getCommandContext());

/// set input parameters to task command
cmd.setInputUserName(getUserName());
cmd.setInputPoints(getPoints()); // change to Integer

/// End Section 4A ///////////////////////////////////////
*/
/*
// Section 4D ////////////////////////////////////
/// pass rrb instance variable to the task command

cmd.setUserRegistryAccessBean(rrb);

// End of section 4D /////////////////////////////
*/


/*
// Section 4E ////////////////////////////////////
/// pass bb instance variable to the task command
cmd.setBonusAccessBean(bb);
// End of section 4E /////////////////////////////
*/
/*
/// Section 4B ///////////////////////////////////

/// invoke the command's performExecute method
cmd.execute();

/// retrieve output parameter from task command, then put it to
response properties
rspProp.put("taskOutputGreetings", cmd.getGreetings());

/// End Section 4B /////////////////////////////////////
*/

/*
// Section 4F ///////////////////////////////////////
///using access bean to get information from databse
if (cmd.getFoundUserId() != null) {
rspProp.put("taskOutputUserId", cmd.getFoundUserId());
}
// End of section 4F /////////////////////////////
*/


/*
// Section 4G ///////////////////////////////////////
if (cmd.getOldBonusPoints() != null) {
rspProp.put("oldBonusPoints", cmd.getOldBonusPoints());
}
// End of section 4G /////////////////////////////
*/


/*
// Section 4H ///////////////////////////////////////
///Instantiate the bonus databean , then put it into response
properties
BonusDataBean bdb = new
com.ibm.commerce.sample.databeans.BonusDataBean(cmd.getBonusAccessBean());
rspProp.put("bdbInstance", bdb );
// End of section 4H ////////////////////////////////
*/

/*
/// Start Section 4C ////////////////////////////////////
} catch (ECException ex) {
/// throw the exception as is
throw (ECException) ex;
}

/// End Section 4C //////////////////////////////////////
*/

/// End of Area 4///////////////////////////////////////////




/*
/// Section 5 /////////////////////////////////////////////////

/// see how controller command call a JSP

rspProp.put(ECConstants.EC_VIEWTASKNAME, "MyNewView");
setResponseProperties(rspProp);

/// End of section 5///////////////////////////////////////////
*/


}

/**
*
* ControllerCommandImpl calls validateParameter in performExecute.
* It is the responsibility of the command writers to implements
* this method if they want to perform server side parameter
checking.
* They should either calls validateParameters inside their
performExecute
* or calls super.performExecute() as the first statement in the
* performExecute method.
*
*
* @exception CommandException.
*/

public void validateParameters() throws ECException {

/*
/// Section 1 /////////////////////////////////////////////////
/// uncomment to check parameters

final String strMethodName = "validateParameters";

TypedProperty prop = getRequestProperties();

/// retrieve required parameters
try {
setUserName(prop.getString("input1"));

} catch (ParameterNotFoundException e) {
/// the next exception uses _ERR_CMD_MISSING_PARAM ECMessage object
defined in ECMessage class
throw new ECApplicationException(ECMessage._ERR_CMD_MISSING_PARAM, this.getClass().getName(), strMethodName, ECMessageHelper.generateMsgParms(e.getParamName()));
}

/// retrieve optional Integer
// set input2 = 0 if no input value
setPoints(prop.getInteger("input2",0));

/// End of section
1//////////////////////////////////////////////////////////
*/
}
}

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