Requirement Constraints

Sunday, 15 September 2013

ZK Dynamic Menu Part 2

Posted on 18:02 by Unknown

In the last article, we have seen how we can dynamically create Menu using Menu component. In this post, we will see how we can create Dynamic tree using the same class.

MenuItem.java

package com.example.menu;

import java.util.ArrayList;
import java.util.List;

public class MenuItem {
	private String name;
	private List<MenuItem> children;
	private int level;

	public MenuItem(String name,int level) {
		this.name = name;
		this.level = level;
		children = new ArrayList<MenuItem>();
	}
	
	public void addChild(MenuItem node) {
		children.add(node);
	}

	public void appendChild(MenuItem child) {
		if (children == null)
			children = new ArrayList<MenuItem>();
		children.add(child);
	}
	
	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public List<MenuItem> getChildren() {
		return children;
	}

	public void setChildren(List<MenuItem> children) {
		this.children = children;
	}

	public int getLevel() {
		return level;
	}

	public void setLevel(int level) {
		this.level = level;
	}

}

MenuItemData.java

package com.example.menu;

import java.util.ArrayList;
import java.util.List;

public class MenuItemData {

	private static List<MenuItem> menus = new ArrayList<MenuItem>();
	static {

		MenuItem m1 = new MenuItem("Administration",1);
		MenuItem m1_lv1 = new MenuItem("Security",2);
		MenuItem m1_Lv2 = new MenuItem("Accounts",3);

		MenuItem m1_Lv3 = new MenuItem("User",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Role",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("User Rights",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Role Rights",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("Regional",3);
		m1_Lv3 = new MenuItem("Clock",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Language",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Keyboard",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("Devices",3);
		m1_Lv3 = new MenuItem("Printer",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Projector",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Mouse",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1.addChild(m1_lv1);

		/***************************************************/
		m1_lv1 = new MenuItem("Network",2);
		m1_Lv2 = new MenuItem("Wireless",3);
		m1_Lv3 = new MenuItem("Connection 1",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Connection 2",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("Adapter",3);
		m1_Lv3 = new MenuItem("Local Area Connection",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Virtual Box Network",4);
		m1_Lv2.addChild(m1_Lv3);

		m1_lv1.addChild(m1_Lv2);

		m1.addChild(m1_lv1);

		/***************************************************/
		m1_lv1 = new MenuItem("My Computer",2);
		m1_Lv2 = new MenuItem("Drives",3);
		m1_Lv3 = new MenuItem("C Drive",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("D Drive",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("E Drive",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("Favorites",3);
		m1_Lv3 = new MenuItem("Desktop",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Downloads",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Recent Places",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Google Drive",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);
		m1.addChild(m1_lv1);
		menus.add(m1);

		/************************************************************************/
		m1 = new MenuItem("ZK",1);
		m1_lv1 = new MenuItem("Products",2);
		m1_Lv2 = new MenuItem("ZK SpreadSheet",3);

		m1_Lv3 = new MenuItem("3D Cell",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Freeze rows",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Ranged Cells",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("ZK Pivottable",3);
		m1_Lv3 = new MenuItem("Drill Down",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Render",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Paging",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("ZK Calender",3);
		m1_Lv3 = new MenuItem("Views",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Drag and Drop",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Time Zones",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("ZK Spring",3);
		m1_Lv3 = new MenuItem("HTTP Request",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("HTTP Basic",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("MD4 Password",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);
		
		m1.addChild(m1_lv1);

		/***************************************************/
		m1_lv1 = new MenuItem("ZK Demo",2);
		m1_Lv2 = new MenuItem("Grid",3);
		m1_Lv3 = new MenuItem("Master Detail",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Data Binding",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Dynamic Data",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Data Filter",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("ListBox",3);
		m1_Lv3 = new MenuItem("Dual ListBox",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Paging",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Auto Sort",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("List Group",4);
		m1_Lv2.addChild(m1_Lv3);
		
		m1_Lv2 = new MenuItem("Effects",3);
		m1_Lv3 = new MenuItem("jQuery Effects",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Upload Effect",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Login Effect",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Display Action",4);
		m1_Lv2.addChild(m1_Lv3);

		
		m1_Lv2 = new MenuItem("Layout",3);
		m1_Lv3 = new MenuItem("Portal Layout",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Complex Border Layout",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Group Box",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Boxes",4);
		m1_Lv2.addChild(m1_Lv3);
		
		
		m1_lv1.addChild(m1_Lv2);

		m1.addChild(m1_lv1);

		/***************************************************/
		m1_lv1 = new MenuItem("ZK Support",2);
		m1_Lv2 = new MenuItem("Documentation",3);
		m1_Lv3 = new MenuItem("Spread Sheet",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("ZK Calender",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("ZK Studio",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("Downloads",3);
		m1_Lv3 = new MenuItem("ZK Spring",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("ZK JSP",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);
		m1.addChild(m1_lv1);

		menus.add(m1);
		m1 = new MenuItem("Eclipse",1);
		menus.add(m1);
		m1_lv1 = new MenuItem("File",2);
		m1_Lv2 = new MenuItem("Project",3);

		m1_Lv3 = new MenuItem("New Maven",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("New JPA",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("New JEE",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);
		m1.addChild(m1_lv1);
	}

	public static List<MenuItem> getAllMenus() {
		return new ArrayList<MenuItem>(menus);
	}

}

MyTreeModel.java

package com.example.menu;

import org.zkoss.zul.AbstractTreeModel;
import org.zkoss.zul.ext.Selectable;

public class MyTreeModel extends AbstractTreeModel<Object> implements Selectable<Object>{

	private static final long serialVersionUID = 1L;
	private MenuItem _root;

	public MyTreeModel(Object root) {
		// set the root
		super(root);
		_root = (MenuItem) root;
		 
	}
	@Override
	public boolean isLeaf(Object node) {
		return ((MenuItem) node).getChildren().size() == 0; // at most 4 levels
	}

	@Override
	public Object getChild(Object parent, int index) {
		return ((MenuItem) parent).getChildren().get(index);
	}

	@Override
	public int getChildCount(Object parent) {
		return ((MenuItem) parent).getChildren().size();  
	}

 
	public boolean isMutiple()
	{
		return true;
	}
}

index.zul

<?page title="new page title" contentType="text/html;charset=UTF-8"?>
<zk>
	<window id="mainmenubar" apply="org.zkoss.bind.BindComposer"
		border="none" onCreate="@command('onFulfill')"
		viewModel="@id('vm') @init('com.example.menu.TreeMenuVM')">
		<tree model="@bind(vm.model)" id="mytree"
			zclass="z-filetree" rows="22"  
			height="auto"  >
			<template name="model" var="node" status="s">
				<treeitem open="true">
					<treerow>
						<treecell label="@bind(node.name)" />
					</treerow>
				</treeitem>
			</template>
		</tree>
	</window>
</zk>

TreeMenuVM.java

package com.example.menu;

import java.util.Collection;
import java.util.Iterator;
import java.util.List;

import org.zkoss.bind.annotation.AfterCompose;
import org.zkoss.bind.annotation.Command;
import org.zkoss.bind.annotation.ContextParam;
import org.zkoss.bind.annotation.ContextType;
import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.select.Selectors;
import org.zkoss.zk.ui.select.annotation.Wire;
import org.zkoss.zul.Tree;
import org.zkoss.zul.TreeModel;
import org.zkoss.zul.Treeitem;

public class TreeMenuVM {

	@Wire("#mytree")
	private Tree mytree;

	TreeModel _model;
	private List<MenuItem> allMenus;

	public TreeModel getModel() {
		if (_model == null) {
			MyTreeModel a = new MyTreeModel(getRoot());
			a.setMultiple(true);
			_model = a;
		}
		return _model;
	}

	@AfterCompose
	public void initSetup(@ContextParam(ContextType.VIEW) Component view) {
		Selectors.wireComponents(view, this, false);
		mytree.setFocus(true);
	}

	public MenuItem getRoot() {
		MenuItem superRoot = new MenuItem("Menu", 0);
		MenuItem root = new MenuItem("Menu", 0);
		allMenus = MenuItemData.getAllMenus();
		MenuItem m1 = allMenus.get(0);
		MenuItem m2 = allMenus.get(1);
		MenuItem m3 = allMenus.get(2);
		superRoot.addChild(root);
		root.addChild(m1);
		root.addChild(m2);
		root.addChild(m3);
		return superRoot;
	}

	@Command
	public void onFulfill() {
		doCollapseExpandAll(mytree, true);
	}

	public static void doCollapseExpandAll(Component component,
			boolean aufklappen) {
		if (component instanceof Treeitem) {
			Treeitem treeitem = (Treeitem) component;
			treeitem.setOpen(aufklappen);
		}
		Collection<?> com = component.getChildren();
		if (com != null) {
			for (Iterator<?> iterator = com.iterator(); iterator.hasNext();) {
				doCollapseExpandAll((Component) iterator.next(), aufklappen);

			}
		}
	}

}

Output:

You can see online Demo here

Posted in ZK Framework | No comments

Friday, 13 September 2013

In most of the application, Menu are build up from the database and maintain user level screen access to control access. Now let us see how we can create dynamic menu using different ZK Components. In this part, we will see how we can use ZK Menu component to build up.

Assume that, our application menu has the following structure(Just for an example)
1.Administration
    Secuirty
             Accounts
                      User
                      Role
                      User Rights
                      Role Rights
            Regional
                     Clock
                     Language
                     Keyboard
            Devices
                    Printer
                    Projector
                    Mouse
    Network
             Wireless
                  Connection 1
                  Connection 2
        Adapter
                 Local Area Connection
                 Virtual Box Network
        Internet Optons
               General
               Programs
               Content
               Privacy
    My Computer
        Drives
               C Drive
                D Drive
                E Drive
        Favorites
            Desktop
            Downloads
            Recent Places
            Google Drive

2. ZK
     Products
    ZK SpreadSheet
        3D Cell
        Freeze rows
        Ranged Cells
    ZK Pivottable
        Drill Down
        Render
        Paging
    ZK Calender
        Views
        Drag and Drop
        Time Zones
    ZK Spring
        HTTP Request
        HTTP Basic
        MD4 Password
        Web Flow
     ZK Demo
    Grid
        Master Detail
        Data Binding
        Dynamic Data
        Data Filter
    ListBox
        Dual ListBox
        Paging
        Auto Sort
        List Group
    Effects
        jQuery Effects
        Upload Effect
        Login Effect
        Display Action
    Layout
        Portal Layout
        Complex Border Layout
        Group Box
        Boxes
      ZK Support
    Documentation
        Spread Sheet
        ZK Studio
        ZK Calender
    Downloads
        ZK Spring
        ZK JSP

3.Eclipse
    File
        Project
            New Maven
            New JPA
            New JEE
    Window
        Perspective

You can see, we have 4 Level Menu Structure

Let us start our coding part.

MenuItem.java

package com.example.menu;

import java.util.ArrayList;
import java.util.List;

public class MenuItem {
	private String name;
	private List<MenuItem> children;
	private int level;

	public MenuItem(String name,int level) {
		this.name = name;
		this.level = level;
		children = new ArrayList<MenuItem>();
	}
	
	public void addChild(MenuItem node) {
		children.add(node);
	}

	public void appendChild(MenuItem child) {
		if (children == null)
			children = new ArrayList<MenuItem>();
		children.add(child);
	}
	
	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public List<MenuItem> getChildren() {
		return children;
	}

	public void setChildren(List<MenuItem> children) {
		this.children = children;
	}

	public int getLevel() {
		return level;
	}

	public void setLevel(int level) {
		this.level = level;
	}

}

MenuItemData.java

package com.example.menu;

import java.util.ArrayList;
import java.util.List;

public class MenuItemData {

	private static List<MenuItem> menus = new ArrayList<MenuItem>();
	static {

		MenuItem m1 = new MenuItem("Administration",1);
		MenuItem m1_lv1 = new MenuItem("Security",2);
		MenuItem m1_Lv2 = new MenuItem("Accounts",3);

		MenuItem m1_Lv3 = new MenuItem("User",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Role",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("User Rights",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Role Rights",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("Regional",3);
		m1_Lv3 = new MenuItem("Clock",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Language",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Keyboard",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("Devices",3);
		m1_Lv3 = new MenuItem("Printer",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Projector",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Mouse",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1.addChild(m1_lv1);

		/***************************************************/
		m1_lv1 = new MenuItem("Network",2);
		m1_Lv2 = new MenuItem("Wireless",3);
		m1_Lv3 = new MenuItem("Connection 1",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Connection 2",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("Adapter",3);
		m1_Lv3 = new MenuItem("Local Area Connection",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Virtual Box Network",4);
		m1_Lv2.addChild(m1_Lv3);

		m1_lv1.addChild(m1_Lv2);

		m1.addChild(m1_lv1);

		/***************************************************/
		m1_lv1 = new MenuItem("My Computer",2);
		m1_Lv2 = new MenuItem("Drives",3);
		m1_Lv3 = new MenuItem("C Drive",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("D Drive",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("E Drive",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("Favorites",3);
		m1_Lv3 = new MenuItem("Desktop",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Downloads",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Recent Places",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Google Drive",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);
		m1.addChild(m1_lv1);
		menus.add(m1);

		/************************************************************************/
		m1 = new MenuItem("ZK",1);
		m1_lv1 = new MenuItem("Products",2);
		m1_Lv2 = new MenuItem("ZK SpreadSheet",3);

		m1_Lv3 = new MenuItem("3D Cell",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Freeze rows",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Ranged Cells",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("ZK Pivottable",3);
		m1_Lv3 = new MenuItem("Drill Down",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Render",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Paging",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("ZK Calender",3);
		m1_Lv3 = new MenuItem("Views",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Drag and Drop",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Time Zones",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("ZK Spring",3);
		m1_Lv3 = new MenuItem("HTTP Request",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("HTTP Basic",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("MD4 Password",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);
		
		m1.addChild(m1_lv1);

		/***************************************************/
		m1_lv1 = new MenuItem("ZK Demo",2);
		m1_Lv2 = new MenuItem("Grid",3);
		m1_Lv3 = new MenuItem("Master Detail",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Data Binding",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Dynamic Data",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Data Filter",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("ListBox",3);
		m1_Lv3 = new MenuItem("Dual ListBox",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Paging",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Auto Sort",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("List Group",4);
		m1_Lv2.addChild(m1_Lv3);
		
		m1_Lv2 = new MenuItem("Effects",3);
		m1_Lv3 = new MenuItem("jQuery Effects",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Upload Effect",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Login Effect",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Display Action",4);
		m1_Lv2.addChild(m1_Lv3);

		
		m1_Lv2 = new MenuItem("Layout",3);
		m1_Lv3 = new MenuItem("Portal Layout",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Complex Border Layout",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Group Box",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Boxes",4);
		m1_Lv2.addChild(m1_Lv3);
		
		
		m1_lv1.addChild(m1_Lv2);

		m1.addChild(m1_lv1);

		/***************************************************/
		m1_lv1 = new MenuItem("ZK Support",2);
		m1_Lv2 = new MenuItem("Documentation",3);
		m1_Lv3 = new MenuItem("Spread Sheet",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("ZK Calender",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("ZK Studio",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("Downloads",3);
		m1_Lv3 = new MenuItem("ZK Spring",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("ZK JSP",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);
		m1.addChild(m1_lv1);

		menus.add(m1);
		m1 = new MenuItem("Eclipse",1);
		menus.add(m1);
		m1_lv1 = new MenuItem("File",2);
		m1_Lv2 = new MenuItem("Project",3);

		m1_Lv3 = new MenuItem("New Maven",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("New JPA",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("New JEE",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);
		m1.addChild(m1_lv1);
	}

	public static List<MenuItem> getAllMenus() {
		return new ArrayList<MenuItem>(menus);
	}

}

index.zul

<?page title="" contentType="text/html;charset=UTF-8"?>
<zk>
	<window id="mainmenubar" apply="org.zkoss.bind.BindComposer"
		border="none"
		viewModel="@id('vm') @init('com.example.menu.MenuBarVM')">
		<menubar id="mbar" top="0px" left="0px" sclass="mymenubar"
			autodrop="true"
			children="@bind(vm.nodes) @template(empty each.children?'menuitem':'menu')">
			<template name="menu" var="menu">
				<menu label="@bind(menu.name)">
					<menupopup sclass="mymenupopup"
						children="@bind(menu.children) @template(empty each.children?'menuitem':'menu')" />
				</menu>
			</template>
			<template name="menuitem" var="item">
				<menuitem label="@bind(item.name)"
					onClick="@command('menuClicked',menuitem=item)" />
			</template>
		</menubar>
	</window>
</zk>

package com.example.menu;

import java.util.ArrayList;
import java.util.List;

public class MenuBarVM {

	private List<MenuItem> nodes;

	public List<MenuItem> getNodes() {
		return nodes;
	}

	public void setNodes(List<MenuItem> nodes) {
		this.nodes = nodes;
	}

	public MenuBarVM() {
		nodes = new ArrayList<MenuItem>();
		nodes = MenuItemData.getAllMenus();
	}
}

Output

You can see online Demo here

Posted in ZK Framework | No comments

Tuesday, 3 September 2013

Create a Report with ZK using iReport 5.1.0 and JasperReports

Posted on 10:52 by Unknown

First let us setup the development environment. Download this document and follow the step by step instruction to install the necessary software’s.

Step 1:
Let us create new ZK Maven Project as shown in the following steps
In the Eclipse IDE, select File –> New-> Other->Maven Project

Click Next and Select zk-archetype-webapp 6.5.2 as shown below

Click Next and enter ireportExamples for Group ID, Artifact ID and package as shown. Select 6.5.2 version and click Finish

New Maven Project will be created with the following folder structure

Step 2:
Define a Person.java POJO class as defined below. This is the Java bean data source that is going to provide the data to the report.

package ireportExamples;

public class Person {

	private String firstName;
	private String lastName;
	private Integer age;

	public Person(String firstName, String lastName, Integer age) {
		this.firstName = firstName;
		this.lastName = lastName;
		this.age = age;
	}

	public String getFirstName() {
		return firstName;
	}

	public void setFirstName(String firstName) {
		this.firstName = firstName;
	}

	public String getLastName() {
		return lastName;
	}

	public void setLastName(String lastName) {
		this.lastName = lastName;
	}

	public Integer getAge() {
		return age;
	}

	public void setAge(Integer age) {
		this.age = age;
	}

}

We need the .class for the above java file. Just compile and run the project by right click on the project name and Select Run as –> Run on Server

Step 3:
Next we will start with iReport. Goto http://sourceforge.net/projects/ireport/files/?source=navbar and download iReport 5.1.0 windows installer exe as shown

After download, install the ireport and Run. After the welcome screen, Select File –> New as shown

Select Blank A4 and Click on Open this Template

Enter the Report Name and Location as shown above.

Now Let us add Report Title.On the Palette window, look for Label Static Text and select that and drag to title band in the designer.

Now double click on the Static text and change the text as My First Report as shown

Now Let us change the font size. Click on Window -> Properties to change the font size as shown

Very Important Note, Select the myFirstReport in the left navigator and Right Click and Select Properties

Select Language option to “Java”

Add the column header for the report by dragging and dropping the "Static Text" for the column headers.

Next, we need to Tell iReport where to find the classes by defining the class path via Tools --> Option, and then select the "Classpath" tab.

Next let us define the Report query. Click Report query icon as shown

Goto JavaBean Datasource and type ireportExamples.Person in the class name and Click Read attributes button as shown

Select firstname, lastname and age as shown

Now Come to detail section and Drag a Text Field from the Palette

Right Click and Select Edit Expression

Remove the default expression and double click on firstname

Click Apply. Repeat the same steps for Lastname and age

Now save the report and Right click on myFirstReport on the Left navigation and select Complie report

And after successful compile, iReport will create jasper file in the path we specified earlier. The file name will be

Step 4:
Now let us come back to java application. First let us add the jasper report dependency in our POM File. Open the POM File and add the following

<dependency>
            <groupId>net.sf.jasperreports</groupId>
            <artifactId>jasperreports</artifactId>
            <version>5.1.0</version>
</dependency>

Next create a folder called reports under webapp folder as shown

Copy the myfirstreport.jasper file in the above folder as shown

Modify the index.zul file as follows

<zk>
	<window apply="org.zkoss.bind.BindComposer"
		viewModel="@id('vm')@init('ireportExamples.MyViewModel')">
		<button label="Show Report" onClick="@command('showReport')" />
	</window>
</zk>

Modify the MyViewModel.java as follows

package ireportExamples;

import java.util.ArrayList;
import java.util.List;

import net.sf.jasperreports.engine.JREmptyDataSource;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import net.sf.jasperreports.view.JasperViewer;

import org.zkoss.bind.annotation.Command;
import org.zkoss.bind.annotation.Init;
import org.zkoss.zk.ui.Executions;

public class MyViewModel {

	private List<Person> personDataSet = new ArrayList<Person>();

	@Init
	public void init() {
		fillpersonData();
	}

	@Command
	public void showReport() throws JRException {
		String reportFile = Executions.getCurrent().getDesktop().getWebApp()
				.getRealPath("/reports");
		reportFile = reportFile + "/myfirstreport.jasper";

		JasperPrint jasperPrint = JasperFillManager.fillReport(reportFile,
				null, new JRBeanCollectionDataSource(personDataSet));
		 //view the report using JasperViewer
        JasperViewer.viewReport(jasperPrint,false);

	}

	private void fillpersonData() {
		personDataSet.add(new Person("John", "Smith", 25));
		personDataSet.add(new Person("David", "Thomas", 15));
		personDataSet.add(new Person("Ronald", "Jose", 45));
		personDataSet.add(new Person("Larry", "Scott", 46));
		personDataSet.add(new Person("Dennis", "Jerry", 45));
		personDataSet.add(new Person("Peter", "Carl", 12));
		personDataSet.add(new Person("Adam", "Jorge", 17));
		personDataSet.add(new Person("Aaron", "Leon", 24));
		personDataSet.add(new Person("Billy", "Mario", 49));
		personDataSet.add(new Person("Todd", "Ray", 65));
		personDataSet.add(new Person("Jimmy", "Norman", 54));
	}

}

That’s all. Now you run and click on the ShowReport button to show the report as shown

Posted in ZK iReport | No comments

Wednesday, 28 August 2013

HL7 Parsing–My Own Parser

Posted on 11:37 by Unknown

In my previous post, i showed how to use HAPI for parsing HL7 File. But for my current assignment , i am not able to go further on HAPI. Here is my requirement

1. I need to parse Patient lab result ORU^R01 Message type
2. Here is the structure of the message

MSH
PID
ORC
IN1
IN2...IN4
DG1....DG4
OBR (N times, under each OBR, there can be N number of OBXs)
----> OBX1....OBXn
----------NTEs(Some time OBX may also contain NTEs
NTE(Some times, OBR may not have OBX, but they have NTEs

3. And here is the challenge, upfront i will not know how many DG, OBR and under each OBR, how many OBXs are present in the result file. So without any looping mechanism, we cannot parse the file and convert into human readable text.
4. I tried with lot with HAPI to achieve the desired result, but no luck. May be because of the following reasons
a) HAPI Does not have much examples to show the power of the parser of each Message type
b) I do not have time to read their API and form the example Smile

c) Finally HAPI does not have ability to parse the multiple OBR and OBX

So i decided to drop HAPI and started my own parser. I have been working in Health care industry for more than 14 years, so understanding the terminology/domain is not a problem for me. Writing our own parser is fun for me, because i have the done the same thing in VB6 successfully. But this time with java. Here is the detail code.

package hl7.parse;

import java.util.HashMap;
import java.util.Map;

public class MyParser {

	String message;
	private Long totalLines = (long) 0;
	private Long MSHCount = (long) 0;
	private Long PIDCount = (long) 0;
	private Long ORCCount = (long) 0;
	private Long totalDGs = (long) 0;
	private Long OBRCounter = (long) 0;
	private Long OBXCounter = (long) 0;
	private String MSH;
	private String PID;
	private String ORC;
	private Map<String, String> element = new HashMap<String, String>();
	private String currentOBR;

	public Long getTotalDGs() {
		return totalDGs;
	}

	public Long getTotalOBRs() {
		return OBRCounter;
	}

	public Long getORCCount() {
		return ORCCount;
	}

	public String getORC() {
		return ORC;
	}

	public String getMSH() {
		return MSH;
	}

	public String getPID() {
		return PID;
	}

	public Long getPIDCount() {
		return PIDCount;
	}

	public Long getMSHCount() {
		return MSHCount;
	}

	public Long getTotalLines() {
		return totalLines;
	}

	public String getMessage() {
		return message;
	}

	public void setMessage(String message) {
		this.message = message;
	}

	public MyParser(String message) {
		this.message = message;
	}

	public String getValue(String key) {
		return element.get(key);
	}

	public void parseIt() {
		String delimiter = "\\r";
		String[] temp;
		temp = message.split(delimiter);
		for (int i = 0; i < temp.length; i++) {
			// Store the lines if developer wants it
			element.put("Segment-" + i, temp[i]);
			parseSegment(temp[i]);
			totalLines++;
		}

		// Write the final one
		// Store the total OBX Count -- OBR[1]OBX-count
		if (this.currentOBR != null) {
			String key = "OBR[" + OBRCounter + "]" + "OBX-count";
			element.put(key, String.valueOf(OBXCounter));

		}
	}

	private void parseSegment(String line) {
		String segment;
		segment = line.substring(0, 3);
		if (segment.equalsIgnoreCase("MSH"))
			parseMSH(line);

		if (segment.equalsIgnoreCase("PID"))
			parsePID(line);

		if (segment.equalsIgnoreCase("ORC"))
			parseORC(line);

		if (segment.equalsIgnoreCase("DG1") || segment.equalsIgnoreCase("DG2")
				|| segment.equalsIgnoreCase("DG3")
				|| segment.equalsIgnoreCase("DG4"))
			parseDGs(line);

		if (segment.equalsIgnoreCase("OBR"))
			parseOBRs(line);

		if (segment.equalsIgnoreCase("OBX"))
			parseOBXs(line);

	}

	private void parseDGs(String line) {

		String delimiter = "\\|";
		String[] temp;
		temp = line.split(delimiter);
		totalDGs++;
		element.put("DG-" + totalDGs, line);
		element.put("DG-" + totalDGs + "-count", String.valueOf(temp.length));
		for (int i = 0; i < temp.length; i++) {
			element.put("DG[" + totalDGs + "]-" + i, temp[i]);
		}

	}

	private void parseOBRs(String line) {

		String delimiter = "\\|";
		String[] temp;
		temp = line.split(delimiter);

		// Store the total OBX Count -- OBR[1]OBX-count
		if (this.currentOBR != null) {
			String key = "OBR[" + OBRCounter + "]" + "OBX-count";
			element.put(key, String.valueOf(OBXCounter));
		}
		OBRCounter++;
		element.put("OBR[" + OBRCounter + "]", line);
		element.put("OBR[" + OBRCounter + "]" + "-count",
				String.valueOf(temp.length));
		this.currentOBR = "OBR[" + OBRCounter + "]";
		// Reset the OBX counter
		OBXCounter = (long) 0;
		for (int i = 0; i < temp.length; i++) {
			element.put("OBR[" + OBRCounter + "]-" + i, temp[i]);
			if (i == 4 || i == 16) //
			{
				parseSubComponent(temp[i], "OBR[" + OBRCounter + "]-" + i);
			}
		}

	}

	private void parseOBXs(String line) {

		// Here we need to carefull, OBX are under OBR, so we need to attach to
		// the correct OBR
		String delimiter = "\\|";
		String[] temp;
		String key;
		temp = line.split(delimiter);
		OBXCounter++;
		key = this.currentOBR + "OBX[" + OBXCounter + "]";
		// Very first thing is, We need to Print the OBX Line under OBR as
		// OBR[1]OBX[1]
		element.put(key, line);
		// OBR[1]OBX[1]-count
		element.put(key + "-count", String.valueOf(temp.length));
		// OBR[1]OBX[1]-1, // OBR[1]OBX[1]-2,etc
		for (int i = 0; i < temp.length; i++) {
			element.put(key + "-" + i, temp[i]);
		}
	}

	private void parseMSH(String line) {

		String delimiter = "\\|";
		String[] temp;
		temp = line.split(delimiter);
		this.MSH = line;
		for (int i = 0; i < temp.length; i++) {
			element.put("MSH-" + i, temp[i]);
			MSHCount++;
		}

	}

	private void parseORC(String line) {

		String delimiter = "\\|";
		String[] temp;
		temp = line.split(delimiter);
		this.ORC = line;
		for (int i = 0; i < temp.length; i++) {
			element.put("ORC-" + i, temp[i]);
			if (i == 12 || i == 17 || i == 18) //
			{
				parseSubComponent(temp[i], "ORC-" + i);
			}
			ORCCount++;
		}

	}

	private void parsePID(String line) {

		String delimiter = "\\|";
		String[] temp;
		temp = line.split(delimiter);
		this.PID = line;
		for (int i = 0; i < temp.length; i++) {

			element.put("PID-" + i, temp[i]);
			if (i == 5 || i == 11) // Let us parse patient Name
			{
				parseSubComponent(temp[i], "PID-" + i);
			}
			PIDCount++;
		}

	}

	private void parseSubComponent(String line, String mapKey) {

		String delimiter = "\\^";
		String[] temp;
		temp = line.split(delimiter);
		int j;
		for (int i = 0; i < temp.length; i++) {
			j = i + 1;
			element.put(mapKey + "-" + j, temp[i]);
		}

	}

}

public void onParse() {
		String element;
		String value;
		String hl7Message = getStringFromInputStream("c:\\temp\\example1.hl7");
		System.out.println("HL7 Content is " + hl7Message);
		myParser = new MyParser(hl7Message);
		myParser.parseIt();

		element = "Receiving Facility";
		value = myParser.getValue("MSH-5");
		System.out.println(element + " : " + value);

		element = "Patient No";
		value = myParser.getValue("PID-2");
		System.out.println(element + " : " + value);

		element = "Lab Accession Number";
		value = myParser.getValue("PID-4");
		System.out.println(element + " : " + value);

		element = "Patient Last Name";
		value = myParser.getValue("PID-5-1");
		System.out.println(element + " : " + value);

		element = "Patient First  Name";
		value = myParser.getValue("PID-5-2");
		System.out.println(element + " : " + value);

		element = "Patient Middle  Name";
		value = myParser.getValue("PID-5-3");
		System.out.println(element + " : " + value);

		element = "Patient DOB";
		value = myParser.getValue("PID-7");
		System.out.println(element + " : " + value);

		element = "Patient Sex";
		value = myParser.getValue("PID-8");
		System.out.println(element + " : " + value);

		element = "Provider NPI";
		value = myParser.getValue("ORC-12-1");
		System.out.println(element + " : " + value);

		element = "Provider Last Name";
		value = myParser.getValue("ORC-12-2");
		System.out.println(element + " : " + value);

		element = "Provider First Name";
		value = myParser.getValue("ORC-12-3");
		System.out.println(element + " : " + value);

		element = "Provider Initial";
		value = myParser.getValue("ORC-12-5");
		System.out.println(element + " : " + value);

		element = "Account No";
		value = myParser.getValue("ORC-17-1");
		System.out.println(element + " : " + value);

		element = "Account Name";
		value = myParser.getValue("ORC-17-2");
		System.out.println(element + " : " + value);

		element = "Account Address";
		value = myParser.getValue("ORC-18-1");
		System.out.println(element + " : " + value);

		element = "Account City";
		value = myParser.getValue("ORC-18-2");
		System.out.println(element + " : " + value);

		element = "Account State";
		value = myParser.getValue("ORC-18-3");
		System.out.println(element + " : " + value);

		element = "Account Zip";
		value = myParser.getValue("ORC-18-4");
		System.out.println(element + " : " + value);

		element = "Account Phone";
		value = myParser.getValue("ORC-18-5");
		System.out.println(element + " : " + value);

		System.out
				.println("*********************************ALL ABOUT MSH ***********************");
		// Let us print the MSH Values
		for (int i = 0; i < myParser.getMSHCount(); i++) {
			System.out.println("MSH-" + i + ": "
					+ myParser.getValue("MSH-" + i));
		}

		// Ofcouse If you want to you get particular value also as follows
		System.out.println("Please give me MSH[3] "
				+ myParser.getValue("MSH-3"));

		// Ofcourse You can also print MSH String
		System.out.println("Please give me MSH Line..." + myParser.getMSH());

		System.out
				.println("*********************************ALL ABOUT PID ***********************");
		// Ofcouse If you want to you get particular value also as follows
		System.out.println("Please give me PID[3] "
				+ myParser.getValue("PID-3"));

		// Ofcourse You can also print PID String
		System.out.println("Please give me PID Line..." + myParser.getPID());

		// Component 1 [ST] family name (last name)
		// Component 2 [ST] given name (first name)
		// Component 3 [ST] middle initial or name
		// Component 4 [ST] suffix (jr, sr, etc)
		// Component 5 [ST] prefix (Mr, Mrs, Dr etc)
		// Component 6 [ST] degree (MD, PHD etc)
		// Component 7 [ID] name type code

		// Ofcouse You can print Patient Last Name as follows
		System.out.println("Please give me Patient Last Name "
				+ myParser.getValue("PID-5-1"));

		// Ofcouse You can print Patient First Name as follows
		System.out.println("Please give me Patient First Name "
				+ myParser.getValue("PID-5-2"));

		// Ofcouse You can print Patient Address as follows
		System.out.println("Please give me Patient Address "
				+ myParser.getValue("PID-11-1"));

		// Ofcouse You can print Patient Address as follows
		System.out.println("Please give me Patient City "
				+ myParser.getValue("PID-11-2"));

		// Ofcouse You can print Patient Address as follows
		System.out.println("Please give me Patient State "
				+ myParser.getValue("PID-11-3"));

		// Ofcouse You can print Patient Address as follows
		System.out.println("Please give me Patient Zip "
				+ myParser.getValue("PID-11-4"));

		// Let us print the PID Values
		for (int i = 0; i < myParser.getPIDCount(); i++) {
			System.out.println("PID-" + i + ": "
					+ myParser.getValue("PID-" + i));
		}

		System.out
				.println("*********************************ALL ABOUT ORC***********************");
		// Let us print the ORC Values
		for (int i = 0; i < myParser.getORCCount(); i++) {
			System.out.println("ORC-" + i + ": "
					+ myParser.getValue("ORC-" + i));
		}
		// Ofcouse If you want to you get particular value also as follows
		System.out.println("Please give me ORC[2] "
				+ myParser.getValue("ORC-2"));

		// Ofcourse You can also print ORC String
		System.out.println("Please give me ORC Line..." + myParser.getORC());
		
		System.out
		.println("*********************************ALL ABOUT DG***********************");
		// Total Number of DGs
		System.out.println("Please give me Total DGs " + myParser.getTotalDGs());
		// Let us print the DGs
		for (int i = 1; i <= myParser.getTotalDGs(); i++) {
			System.out.println("DG-" + i + ": " + myParser.getValue("DG-" + i));
		}

		for (int i = 1; i <= myParser.getTotalDGs(); i++) {
			int total = Integer.parseInt(myParser
					.getValue("DG-" + i + "-count"));
			for (int j = 1; j < total; j++) {
				System.out.println("DG[" + i + "]-" + j + " : "
						+ myParser.getValue("DG[" + i + "]-" + j));
			}

		}
		
		System.out
		.println("*********************************ALL ABOUT OBR***********************");
		// Total Number of OBRs
		System.out.println("Please give me Total OBR " + myParser.getTotalOBRs());
		// Let us print the OBRs
		String key;
		for (int i = 1; i <= myParser.getTotalOBRs(); i++) {
			key = "OBR[" + i + "]";
			System.out.println(key + " : " + myParser.getValue(key));
			// We can also retieve the total elements in each OBR
			System.out.println("Total Elements in " + key + " is "
					+ myParser.getValue(key + "-count"));
		}

		for (int i = 1; i <= myParser.getTotalOBRs(); i++) {
			key = "OBR[" + i + "]-count";
			int total = Integer.parseInt(myParser.getValue(key));
			for (int j = 1; j < total; j++) {
				key = "OBR[" + i + "]-" + j;
				System.out.println(key + " : " + myParser.getValue(key));
			}

		}
		
		System.out
		.println("*********************************ALL ABOUT OBX***********************");
	 
		key = "OBR[1]OBX-count";
		// For given OBR, You can find how many OBXs are there as follows
		System.out.println("Please give me Total OBXs in OBR[1] "
				+ myParser.getValue(key));

		key = "OBR[2]OBX-count";
		System.out.println("Please give me Total OBXs in OBR[2] "
				+ myParser.getValue(key));

		key = "OBR[1]OBX[1]";
		// You can also Print the OBX Line in each OBR as follows
		System.out.println("Please give me OBX[1] in OBR[1] " + myParser.getValue(key));
		key = "OBR[1]OBX-count";
		int total = Integer.parseInt(myParser.getValue(key));

		// You can also Print all OBXs in OBR[1]
		for (int i = 1; i <= total; i++) {
			key = "OBR[1]OBX[" + i + "]";
			System.out.println("OBR[1]OBX[" + i + "] => " + myParser.getValue(key));
		}

		// Dont know how many OBRs and how many OBXs in each OBRs, no problem,
		// we can put them in the loop
		for (int i = 1; i <= myParser.getTotalOBRs(); i++) {
			key = "OBR[" + i + "]";
			System.out.println(key + " : " + myParser.getValue(key));
			key = key + "OBX-count";
			total = Integer.parseInt(myParser.getValue(key));
			for (int j = 1; j <= total; j++) {
				key = "OBR[" + i + "]" + "OBX[" + j + "]";
				System.out.println("----->" + key + " : " + myParser.getValue(key));
			}
		}
	}

	// convert InputStream to String
	private static String getStringFromInputStream(String fileName) {

		BufferedReader br = null;
		StringBuilder sb = new StringBuilder();

		String line;
		try {
			br = new BufferedReader(new FileReader(fileName));
			while ((line = br.readLine()) != null) {
				sb.append(line + "\r");
			}

		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			if (br != null) {
				try {
					br.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}

		return sb.toString();

	}

Sample HL7 File

MSH|^~\&|mas|MY XXXX LAB|mas|100|201303201430||ORU^R01||P|2.3|
PID|1|K2TE154871|^^^MRN~^^^CID~^^^ACCN|234567892|K2^TEST^||19640512|M|||^^FL^|||||U|||||||0||
ORC|1|000133423|||CM||||201206132103|PHH|201206141230|^^^^     ^^^^^|||||261^XXXX CARE CENTER|31231 IN.STATE ROAD 17 SUITE 102^LAUDERHILL^NY^22313^95455848444|3|PHH|
IN1|1|09102|MCARE|MEDICARE PART B|PO BOX 44117^^JACKSONVILLE^FL^322310018||8664549007||MEDICARE PART B|||||||K2^TEST^|01|00000000|^^NY^||||||||||||||||||||||||||||T|
DG1|1|ICD|319|UNSPECIFIED MENTAL RETARDATION|||||||||||||BUIR154337^000039106|
DG2|1|ICD|30490|UNSPECIFIED DRUG DEPENDENCE, UNSPECIFIED USE|||||||||||||HOJA159610^000039110|
OBR|1|234567892||22014^K2S|||201211151512|201211151514||||||201211151512||^^^^     ^^^^^||A|GENERAL CHEMISTRY||||||X|
OBX|1|TX|22014^K2S| ^A^A|X||-||||X||9|201211150000||...||
OBR|2|234567892||2521S^K2S|||201211151512|201211181214|||A|||201211151512||^^^^     ^^^^^||D|DRUGS||||||F|
OBX|1|TX|2521S^K2S| ^A^A|NEGATIVE|CUTOFF 20 ng/ml|-||||F||9|201211181214||MAM||
OBR|3|234567892||4814^GABA|||201211151512|201212061207|||A|||201211151512||^^^^     ^^^^^||D|DRUGS||||||C|
OBX|1|TX|4814^GABA| ^D^D|X||-||||X||9|201212060949||RBJ|MERCY^^^^^^|
NTE|1|LD|     A THERAPEUTIC RANGE FOR GABAPENTIN HAS NOT BEEN ESTABLISHED. THE RANGE OF|
NTE|2|LD|     THE ASSAY IS 0.75 TO 40.00 ug/mL.REPORTABLE RESULT BELOW THIS RANGE IS|
NTE|3|LD|     <0.75 ug/mL AND ABOVE THIS RANGE IS >40.0 ug/ml.|
OBR|4|234567892||9632^GABA|||201211151512|201211191214|||A|||201211151512||^^^^     ^^^^^||A|GENERAL CHEMISTRY||||||X|
OBX|1|TX|9632^GABA| ^A^A|X|ng/ml|NEGATIVE-|*|||X||9|201211191214||MAM||

Here is the output

Receiving Facility : 100
Patient No : K2TE154871
Lab Accession Number : 234567892
Patient Last Name : K2
Patient First  Name : TEST
Patient Middle  Name : null
Patient DOB : 19640512
Patient Sex : M
Provider NPI : 
Provider Last Name : 
Provider First Name : 
Provider Initial :      
Account No : 261
Account Name : XXXX CARE CENTER
Account Address : 31231 IN.STATE ROAD 17 SUITE 102
Account City : LAUDERHILL
Account State : NY
Account Zip : 22313
Account Phone : 95455848444
*********************************ALL ABOUT MSH ***********************
MSH-0: MSH
MSH-1: ^~\&
MSH-2: mas
MSH-3: MY XXXX LAB
MSH-4: mas
MSH-5: 100
MSH-6: 201303201430
MSH-7: 
MSH-8: ORU^R01
MSH-9: 
MSH-10: P
MSH-11: 2.3
Please give me MSH[3] MY XXXX LAB
Please give me MSH Line...MSH|^~\&|mas|MY XXXX LAB|mas|100|201303201430||ORU^R01||P|2.3|
*********************************ALL ABOUT PID ***********************
Please give me PID[3] ^^^MRN~^^^CID~^^^ACCN
Please give me PID Line...PID|1|K2TE154871|^^^MRN~^^^CID~^^^ACCN|234567892|K2^TEST^||19640512|M|||^^FL^|||||U|||||||0||
Please give me Patient Last Name K2
Please give me Patient First Name TEST
Please give me Patient Address 
Please give me Patient City 
Please give me Patient State FL
Please give me Patient Zip null
PID-0: PID
PID-1: 1
PID-2: K2TE154871
PID-3: ^^^MRN~^^^CID~^^^ACCN
PID-4: 234567892
PID-5: K2^TEST^
PID-6: 
PID-7: 19640512
PID-8: M
PID-9: 
PID-10: 
PID-11: ^^FL^
PID-12: 
PID-13: 
PID-14: 
PID-15: 
PID-16: U
PID-17: 
PID-18: 
PID-19: 
PID-20: 
PID-21: 
PID-22: 
PID-23: 0
*********************************ALL ABOUT ORC***********************
ORC-0: ORC
ORC-1: 1
ORC-2: 000133423
ORC-3: 
ORC-4: 
ORC-5: CM
ORC-6: 
ORC-7: 
ORC-8: 
ORC-9: 201206132103
ORC-10: PHH
ORC-11: 201206141230
ORC-12: ^^^^     ^^^^^
ORC-13: 
ORC-14: 
ORC-15: 
ORC-16: 
ORC-17: 261^XXXX CARE CENTER
ORC-18: 31231 IN.STATE ROAD 17 SUITE 102^LAUDERHILL^NY^22313^95455848444
ORC-19: 3
ORC-20: PHH
Please give me ORC[2] 000133423
Please give me ORC Line...ORC|1|000133423|||CM||||201206132103|PHH|201206141230|^^^^     ^^^^^|||||261^XXXX CARE CENTER|31231 IN.STATE ROAD 17 SUITE 102^LAUDERHILL^NY^22313^95455848444|3|PHH|
*********************************ALL ABOUT DG***********************
Please give me Total DGs 2
DG-1: DG1|1|ICD|319|UNSPECIFIED MENTAL RETARDATION|||||||||||||BUIR154337^000039106|
DG-2: DG1|1|ICD|30490|UNSPECIFIED DRUG DEPENDENCE, UNSPECIFIED USE|||||||||||||HOJA159610^000039110|
DG[1]-1 : 1
DG[1]-2 : ICD
DG[1]-3 : 319
DG[1]-4 : UNSPECIFIED MENTAL RETARDATION
DG[1]-5 : 
DG[1]-6 : 
DG[1]-7 : 
DG[1]-8 : 
DG[1]-9 : 
DG[1]-10 : 
DG[1]-11 : 
DG[1]-12 : 
DG[1]-13 : 
DG[1]-14 : 
DG[1]-15 : 
DG[1]-16 : 
DG[1]-17 : BUIR154337^000039106
DG[2]-1 : 1
DG[2]-2 : ICD
DG[2]-3 : 30490
DG[2]-4 : UNSPECIFIED DRUG DEPENDENCE, UNSPECIFIED USE
DG[2]-5 : 
DG[2]-6 : 
DG[2]-7 : 
DG[2]-8 : 
DG[2]-9 : 
DG[2]-10 : 
DG[2]-11 : 
DG[2]-12 : 
DG[2]-13 : 
DG[2]-14 : 
DG[2]-15 : 
DG[2]-16 : 
DG[2]-17 : HOJA159610^000039110
*********************************ALL ABOUT OBR***********************
Please give me Total OBR 4
OBR[1] : OBR|1|234567892||22014^K2S|||201211151512|201211151514||||||201211151512||^^^^     ^^^^^||A|GENERAL CHEMISTRY||||||X|
Total Elements in OBR[1] is 26
OBR[2] : OBR|2|234567892||2521S^K2S|||201211151512|201211181214|||A|||201211151512||^^^^     ^^^^^||D|DRUGS||||||F|
Total Elements in OBR[2] is 26
OBR[3] : OBR|3|234567892||4814^GABA|||201211151512|201212061207|||A|||201211151512||^^^^     ^^^^^||D|DRUGS||||||C|
Total Elements in OBR[3] is 26
OBR[4] : OBR|4|234567892||9632^GABA|||201211151512|201211191214|||A|||201211151512||^^^^     ^^^^^||A|GENERAL CHEMISTRY||||||X|
Total Elements in OBR[4] is 26
OBR[1]-1 : 1
OBR[1]-2 : 234567892
OBR[1]-3 : 
OBR[1]-4 : 22014^K2S
OBR[1]-5 : 
OBR[1]-6 : 
OBR[1]-7 : 201211151512
OBR[1]-8 : 201211151514
OBR[1]-9 : 
OBR[1]-10 : 
OBR[1]-11 : 
OBR[1]-12 : 
OBR[1]-13 : 
OBR[1]-14 : 201211151512
OBR[1]-15 : 
OBR[1]-16 : ^^^^     ^^^^^
OBR[1]-17 : 
OBR[1]-18 : A
OBR[1]-19 : GENERAL CHEMISTRY
OBR[1]-20 : 
OBR[1]-21 : 
OBR[1]-22 : 
OBR[1]-23 : 
OBR[1]-24 : 
OBR[1]-25 : X
OBR[2]-1 : 2
OBR[2]-2 : 234567892
OBR[2]-3 : 
OBR[2]-4 : 2521S^K2S
OBR[2]-5 : 
OBR[2]-6 : 
OBR[2]-7 : 201211151512
OBR[2]-8 : 201211181214
OBR[2]-9 : 
OBR[2]-10 : 
OBR[2]-11 : A
OBR[2]-12 : 
OBR[2]-13 : 
OBR[2]-14 : 201211151512
OBR[2]-15 : 
OBR[2]-16 : ^^^^     ^^^^^
OBR[2]-17 : 
OBR[2]-18 : D
OBR[2]-19 : DRUGS
OBR[2]-20 : 
OBR[2]-21 : 
OBR[2]-22 : 
OBR[2]-23 : 
OBR[2]-24 : 
OBR[2]-25 : F
OBR[3]-1 : 3
OBR[3]-2 : 234567892
OBR[3]-3 : 
OBR[3]-4 : 4814^GABA
OBR[3]-5 : 
OBR[3]-6 : 
OBR[3]-7 : 201211151512
OBR[3]-8 : 201212061207
OBR[3]-9 : 
OBR[3]-10 : 
OBR[3]-11 : A
OBR[3]-12 : 
OBR[3]-13 : 
OBR[3]-14 : 201211151512
OBR[3]-15 : 
OBR[3]-16 : ^^^^     ^^^^^
OBR[3]-17 : 
OBR[3]-18 : D
OBR[3]-19 : DRUGS
OBR[3]-20 : 
OBR[3]-21 : 
OBR[3]-22 : 
OBR[3]-23 : 
OBR[3]-24 : 
OBR[3]-25 : C
OBR[4]-1 : 4
OBR[4]-2 : 234567892
OBR[4]-3 : 
OBR[4]-4 : 9632^GABA
OBR[4]-5 : 
OBR[4]-6 : 
OBR[4]-7 : 201211151512
OBR[4]-8 : 201211191214
OBR[4]-9 : 
OBR[4]-10 : 
OBR[4]-11 : A
OBR[4]-12 : 
OBR[4]-13 : 
OBR[4]-14 : 201211151512
OBR[4]-15 : 
OBR[4]-16 : ^^^^     ^^^^^
OBR[4]-17 : 
OBR[4]-18 : A
OBR[4]-19 : GENERAL CHEMISTRY
OBR[4]-20 : 
OBR[4]-21 : 
OBR[4]-22 : 
OBR[4]-23 : 
OBR[4]-24 : 
OBR[4]-25 : X
*********************************ALL ABOUT OBX***********************
Please give me Total OBXs in OBR[1] 1
Please give me Total OBXs in OBR[2] 1
Please give me OBX[1] in OBR[1] OBX|1|TX|22014^K2S|  ^A^A|X||-||||X||9|201211150000||...||
OBR[1]OBX[1] => OBX|1|TX|22014^K2S|  ^A^A|X||-||||X||9|201211150000||...||
OBR[1] : OBR|1|234567892||22014^K2S|||201211151512|201211151514||||||201211151512||^^^^     ^^^^^||A|GENERAL CHEMISTRY||||||X|
----->OBR[1]OBX[1] : OBX|1|TX|22014^K2S|  ^A^A|X||-||||X||9|201211150000||...||
OBR[2] : OBR|2|234567892||2521S^K2S|||201211151512|201211181214|||A|||201211151512||^^^^     ^^^^^||D|DRUGS||||||F|
----->OBR[2]OBX[1] : OBX|1|TX|2521S^K2S|  ^A^A|NEGATIVE|CUTOFF 20 ng/ml|-||||F||9|201211181214||MAM||
OBR[3] : OBR|3|234567892||4814^GABA|||201211151512|201212061207|||A|||201211151512||^^^^     ^^^^^||D|DRUGS||||||C|
----->OBR[3]OBX[1] : OBX|1|TX|4814^GABA|  ^D^D|X||-||||X||9|201212060949||RBJ|MERCY^^^^^^|
OBR[4] : OBR|4|234567892||9632^GABA|||201211151512|201211191214|||A|||201211151512||^^^^     ^^^^^||A|GENERAL CHEMISTRY||||||X|
----->OBR[4]OBX[1] : OBX|1|TX|9632^GABA|  ^A^A|X|ng/ml|NEGATIVE-|*|||X||9|201211191214||MAM||

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