Formatted Intercepting Filter source code.

This commit is contained in:
Ilkka Seppala
2015-04-04 21:22:13 +03:00
parent d0feb3c8d5
commit a381a43f2e
11 changed files with 158 additions and 118 deletions

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@ -1,4 +1,5 @@
package com.iluwatar; package com.iluwatar;
/** /**
* Concrete implementation of filter * Concrete implementation of filter
* This filter is responsible for checking/filtering the input in the address field, returns null if field is empty * This filter is responsible for checking/filtering the input in the address field, returns null if field is empty
@ -9,6 +10,7 @@ public class AddressFilter implements Filter{
public String execute(String[] request) { public String execute(String[] request) {
if (request[2].equals("")) { if (request[2].equals("")) {
return null; return null;
}else return request[2]; } else
return request[2];
} }
} }

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@ -1,9 +1,5 @@
package com.iluwatar; package com.iluwatar;
import java.util.*;
import javax.swing.*;
import javax.swing.table.*;
import java.awt.*;
import java.awt.event.*;
/** /**
* *
* This is an app that checks whether the order request is valid through pre-processing done via Filters * This is an app that checks whether the order request is valid through pre-processing done via Filters
@ -24,12 +20,3 @@ public class App{
client.setFilterManager(filterManager); client.setFilterManager(filterManager);
} }
} }

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@ -1,9 +1,18 @@
package com.iluwatar; package com.iluwatar;
import java.util.*;
import javax.swing.*; import java.awt.BorderLayout;
import javax.swing.table.*; import java.awt.GridLayout;
import java.awt.*; import java.awt.event.ActionEvent;
import java.awt.event.*; import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRootPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
/** /**
* The Client class is responsible for handling the input and running them through filters inside the filterManager * The Client class is responsible for handling the input and running them through filters inside the filterManager
@ -14,11 +23,15 @@ import java.awt.event.*;
* *
*/ */
public class Client extends JFrame { public class Client extends JFrame {
private static final long serialVersionUID = 1L;
private FilterManager filterManager; private FilterManager filterManager;
private JLabel jl; private JLabel jl;
private JTextField[] jtFields; private JTextField[] jtFields;
private JTextArea[] jtAreas; private JTextArea[] jtAreas;
private JButton clearButton, processButton; private JButton clearButton, processButton;
public Client() { public Client() {
super("Client System"); super("Client System");
setDefaultCloseOperation(EXIT_ON_CLOSE); setDefaultCloseOperation(EXIT_ON_CLOSE);
@ -37,6 +50,7 @@ public class Client extends JFrame{
setup(); setup();
} }
private void setup() { private void setup() {
setLayout(new BorderLayout()); setLayout(new BorderLayout());
JPanel panel = new JPanel(); JPanel panel = new JPanel();
@ -71,7 +85,10 @@ public class Client extends JFrame{
processButton.addActionListener(new ActionListener() { processButton.addActionListener(new ActionListener() {
@Override @Override
public void actionPerformed(ActionEvent e) { public void actionPerformed(ActionEvent e) {
String request = String.format("%s&%s&%s&%s&%s",jtFields[0].getText(),jtFields[1].getText(),jtAreas[0].getText(),jtFields[2].getText(),jtAreas[1].getText()); String request = String.format("%s&%s&%s&%s&%s",
jtFields[0].getText(), jtFields[1].getText(),
jtAreas[0].getText(), jtFields[2].getText(),
jtAreas[1].getText());
jl.setText(sendRequest(request)); jl.setText(sendRequest(request));
} }
@ -81,9 +98,11 @@ public class Client extends JFrame{
rootPane.setDefaultButton(processButton); rootPane.setDefaultButton(processButton);
setVisible(true); setVisible(true);
} }
public void setFilterManager(FilterManager filterManager) { public void setFilterManager(FilterManager filterManager) {
this.filterManager = filterManager; this.filterManager = filterManager;
} }
public String sendRequest(String request) { public String sendRequest(String request) {
return filterManager.filterRequest(request); return filterManager.filterRequest(request);
} }

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@ -1,4 +1,5 @@
package com.iluwatar; package com.iluwatar;
/** /**
* Concrete implementation of filter * Concrete implementation of filter
* This filter checks for the contact field in which it checks if the input consist of numbers and it also checks if the input follows the length constraint (11 digits) * This filter checks for the contact field in which it checks if the input consist of numbers and it also checks if the input follows the length constraint (11 digits)
@ -7,8 +8,10 @@ package com.iluwatar;
*/ */
public class ContactFilter implements Filter { public class ContactFilter implements Filter {
public String execute(String[] request) { public String execute(String[] request) {
if(request[1].equals("") || request[1].matches(".*[^\\d]+.*") || request[1].length() != 11){ if (request[1].equals("") || request[1].matches(".*[^\\d]+.*")
|| request[1].length() != 11) {
return null; return null;
}else return request[1]; } else
return request[1];
} }
} }

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@ -1,4 +1,5 @@
package com.iluwatar; package com.iluwatar;
/** /**
* Concrete implementation of filter * Concrete implementation of filter
* *
@ -10,6 +11,7 @@ public class DepositFilter implements Filter{
public String execute(String[] request) { public String execute(String[] request) {
if (request[3].equals("")) { if (request[3].equals("")) {
return null; return null;
}else return request[3]; } else
return request[3];
} }
} }

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@ -1,4 +1,5 @@
package com.iluwatar; package com.iluwatar;
/** /**
* Filter interface * Filter interface
* Filters perform certain tasks prior or after execution of request by request handler. * Filters perform certain tasks prior or after execution of request by request handler.

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@ -1,5 +1,7 @@
package com.iluwatar; package com.iluwatar;
import java.util.*; import java.util.*;
/** /**
* Filter Chain carries multiple filters and help to execute them in defined order on target. * Filter Chain carries multiple filters and help to execute them in defined order on target.
* *
@ -12,6 +14,7 @@ public class FilterChain{
public FilterChain(Target target) { public FilterChain(Target target) {
this.target = target; this.target = target;
} }
public void addFilter(Filter filter) { public void addFilter(Filter filter) {
filters.add(filter); filters.add(filter);
} }

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@ -1,11 +1,8 @@
package com.iluwatar; package com.iluwatar;
import java.util.*;
import javax.swing.*;
import javax.swing.table.*;
import java.awt.*;
import java.awt.event.*;
/** /**
* Filter Manager manages the filters and Filter Chain. * Filter Manager manages the filters and Filter Chain.
*
* @author joshzambales * @author joshzambales
* *
*/ */
@ -15,9 +12,11 @@ public class FilterManager{
public FilterManager(Target target) { public FilterManager(Target target) {
filterChain = new FilterChain(target); filterChain = new FilterChain(target);
} }
public void setFilter(Filter filter) { public void setFilter(Filter filter) {
filterChain.addFilter(filter); filterChain.addFilter(filter);
} }
public String filterRequest(String request) { public String filterRequest(String request) {
return filterChain.execute(request); return filterChain.execute(request);
} }

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@ -1,7 +1,9 @@
package com.iluwatar; package com.iluwatar;
/** /**
* Concrete implementation of filter * Concrete implementation of filter This filter checks if the input in the Name
* This filter checks if the input in the Name field is valid. (alphanumeric) * field is valid. (alphanumeric)
*
* @author joshzambales * @author joshzambales
* *
*/ */
@ -9,6 +11,7 @@ public class NameFilter implements Filter{
public String execute(String[] request) { public String execute(String[] request) {
if (request[0].equals("") || request[0].matches(".*[^\\w|\\s]+.*")) { if (request[0].equals("") || request[0].matches(".*[^\\w|\\s]+.*")) {
return null; return null;
}else return request[0]; } else
return request[0];
} }
} }

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@ -1,7 +1,8 @@
package com.iluwatar; package com.iluwatar;
/** /**
* Concrete implementation of filter * Concrete implementation of filter This checks for the order field, returns
* This checks for the order field, returns null when order field is empty * null when order field is empty
* *
* @author joshzambales * @author joshzambales
* *
@ -10,6 +11,7 @@ public class OrderFilter implements Filter{
public String execute(String[] request) { public String execute(String[] request) {
if (request[4].equals("")) { if (request[4].equals("")) {
return null; return null;
}else return request[4]; } else
return request[4];
} }
} }

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@ -1,9 +1,19 @@
package com.iluwatar; package com.iluwatar;
import java.util.*;
import javax.swing.*; import java.awt.BorderLayout;
import javax.swing.table.*; import java.awt.Dimension;
import java.awt.*; import java.awt.event.ActionEvent;
import java.awt.event.*; import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRootPane;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import javax.swing.table.DefaultTableModel;
/** /**
* This is where the requests are displayed after being validated by filters. * This is where the requests are displayed after being validated by filters.
* *
@ -11,19 +21,25 @@ import java.awt.event.*;
* *
*/ */
public class Target extends JFrame { public class Target extends JFrame {
private static final long serialVersionUID = 1L;
private JTable jt; private JTable jt;
private JScrollPane jsp; private JScrollPane jsp;
private DefaultTableModel dtm; private DefaultTableModel dtm;
private JButton del; private JButton del;
public Target() { public Target() {
super("Order System"); super("Order System");
setDefaultCloseOperation(EXIT_ON_CLOSE); setDefaultCloseOperation(EXIT_ON_CLOSE);
setSize(640, 480); setSize(640, 480);
dtm = new DefaultTableModel(new Object[]{"Name", "Contact Number", "Address", "Deposit Number", "Order"},0); dtm = new DefaultTableModel(new Object[] { "Name", "Contact Number",
"Address", "Deposit Number", "Order" }, 0);
jt = new JTable(dtm); jt = new JTable(dtm);
del = new JButton("Delete"); del = new JButton("Delete");
setup(); setup();
} }
private void setup() { private void setup() {
setLayout(new BorderLayout()); setLayout(new BorderLayout());
JPanel bot = new JPanel(); JPanel bot = new JPanel();
@ -41,15 +57,18 @@ public class Target extends JFrame{
rootPane.setDefaultButton(del); rootPane.setDefaultButton(del);
setVisible(true); setVisible(true);
} }
public void execute(String[] request) { public void execute(String[] request) {
dtm.addRow(new Object[]{request[0],request[1],request[2],request[3],request[4]}); dtm.addRow(new Object[] { request[0], request[1], request[2],
request[3], request[4] });
} }
class DListener implements ActionListener { class DListener implements ActionListener {
@Override @Override
public void actionPerformed(ActionEvent e) { public void actionPerformed(ActionEvent e) {
int temp = jt.getSelectedRow(); int temp = jt.getSelectedRow();
if(temp == -1) return; if (temp == -1)
return;
int temp2 = jt.getSelectedRowCount(); int temp2 = jt.getSelectedRowCount();
for (int i = 0; i < temp2; i++) { for (int i = 0; i < temp2; i++) {
dtm.removeRow(temp); dtm.removeRow(temp);