Wednesday, July 6, 2016

Back Again, Weekly Readings - Week Ending 8 July 2016

It's been a long long time since I wrote a post here. A lot of changes and obstacles were around but I'm planning to get back to focusing on writing here again. I also have some plans that I'm currently working to present more useful subjects in a more interactive way like going for YouTube videos.
Well, let's warm up and start with sharing some useful readings as articles and books that I have recently checked and I believe they would spot on new subjects or discuss useful ones.

Wednesday, February 17, 2016

Java Code Geeks (JCG) Program

I have recently received an invitation to contribute to Java Code Geeks (JCG) and I accepted that. They currently attract over 900,000 unique visitors per month so this would be exciting to spread some words to the community through them. JCG has started pulling my articles from ithinkisink.com to javacodegeeks.com and you can find them on my profile page on JCG: http://www.javacodegeeks.com/author/belal-galal/
For more about the JCG Program and a complete list of the contributors: http://www.javacodegeeks.com/join-us/jcg/ 

Saturday, December 19, 2015

JavaOne 2015 Session: EJB 3.2/JPA 2.1 Best Practices with Real-Life Examples by Gohar

I have recently watched my friend Ahmed Nabil Gohar's session at JavaOne 2015. It's really a clear and straight to the point session. I'm sharing with you the sessions details (inluding the YouTube + the presentation downloadable link) as mentioned in his post.
Session ID: CON7535
Session Title: EJB 3.2/JPA 2.1 Best Practice with life examples (Download Link)
Session Type: Conference Session
Session Abstract:
This session’s speaker, an architect, discusses lessons learned from using JPA and EJB to support a high-volume, high-performance applications. These best practices don't only involve JPA/EJB but also its integration with other Java EE 7 technologies. They also include coding best practices, testing and production practices. The presentation focuses primarily on some Key concepts such as persistence context, lazy loading, caching, flushing, dirty checking, transaction and connection demarcation. This is a fast-paced presentation with many code samples. Categories covered include configuration, JPA, concurrency, performance tuning, exception handling and many more.

Friday, December 18, 2015

Creating JSF/CDI Maven project on Eclipse

While I was working on a JSF and CDI example, I thought it would be useful to mention the steps required to create JSF and CDI Maven project. You can find the bellow steps to do so.
Tools:
  • Eclipse Luna that's shipped with the M2E plugin by default. So no need to install the plugin yourself.
  • WildFlye 8.x.
1- Select from the main menu File->New->Other. Then select Maven->Maven Project.
2- Click the Next button and then check "Create a simple project (skip archetype selection)".
3- Write the Group Id and the Artifact Id then select Packaging as WAR.
4- Click the Finish button to create the project with the bellow structure displayed in the Navigator view.
5- As you can see there is no deployment descriptor file (web.xml) as there is no WEB-INF folder. Also by checking on the Project Facets (select the project then ALT+ENTER then choose from the left menu Project Facets), we can see that the version of the Dynamic Web Module is 2.5 and the JavaServer Faces is not selected. So it's time to do some configurations to our project.
6- Right click on the project name then Configure->Add JSF Capabilities. This will configure the project as JSF project and adds the WEB-INF with the web.xml and the faces-config.xml.

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns="http://java.sun.com/xml/ns/javaee"
 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
 version="2.5">
 <display-name>JSFCDIMavenProject</display-name>
 <servlet>
  <servlet-name>Faces Servlet</servlet-name>
  <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
  <load-on-startup>1</load-on-startup>
 </servlet>
 <servlet-mapping>
  <servlet-name>Faces Servlet</servlet-name>
  <url-pattern>/faces/*</url-pattern>
 </servlet-mapping>
</web-app>
<?xml version="1.0" encoding="UTF-8"?>
<faces-config
    xmlns="http://xmlns.jcp.org/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd"
    version="2.2">

</faces-config>
7- Adding the necessary API's as dependencies to the pom.xml. Also, adding the maven-compiler-plugin with version 3.1. I have also pointed maven to use the Java compiler version 1.7. So here is the final pom.xml.
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 <modelVersion>4.0.0</modelVersion>
 <groupId>com.ithinkisink</groupId>
 <artifactId>JSFCDIMavenProject</artifactId>
 <version>0.0.1-SNAPSHOT</version>
 <packaging>war</packaging>

 <name>JSFCDIMavenProject Maven Webapp</name>

 <dependencies>
  <dependency>
   <groupId>javax.inject</groupId>
   <artifactId>javax.inject</artifactId>
   <version>1</version>
   <scope>provided</scope>
  </dependency>
  <dependency>
   <groupId>javax.faces</groupId>
   <artifactId>jsf-api</artifactId>
   <version>2.1</version>
   <scope>provided</scope>
  </dependency>
  <dependency>
   <groupId>javax.servlet</groupId>
   <artifactId>javax.servlet-api</artifactId>
   <version>3.1.0</version>
   <scope>provided</scope>
  </dependency>
  <dependency>
   <groupId>javax.enterprise</groupId>
   <artifactId>cdi-api</artifactId>
   <version>1.0</version>
   <scope>provided</scope>
  </dependency>
 </dependencies>
 <build>
  <finalName>JSFCDIMavenProject</finalName>
  <plugins>
   <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.1</version>
    <configuration>
     <source>1.7</source>
     <target>1.7</target>
    </configuration>
   </plugin>
  </plugins>
 </build>
</project>
8- Now right click on the project name then choose Maven->Update Project to update the project with the newly added configurations.
9- The deployment descriptor (web,xml) has version 2.5 and we are pointing to the servlet 3.1 in our dependency. So as per Java EE 7XML schema, the namespace is changed to be http://xmlns.jcp.org/xml/ns/javaee/. This is the final web.xml after applying that change.
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
 version="3.1">
 <display-name>JSFCDIMavenProject</display-name>
 <servlet>
  <servlet-name>Faces Servlet</servlet-name>
  <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
  <load-on-startup>1</load-on-startup>
 </servlet>
 <servlet-mapping>
  <servlet-name>Faces Servlet</servlet-name>
  <url-pattern>/faces/*</url-pattern>
 </servlet-mapping>
</web-app>
10- Check again the Project Facets. You can change the Dynamic Web Module for the version 3.1 and the JavaServer Faces is checked with version 2.2 as per the version added in the dependencies.
11- The last configuration that is needed is enabling the CDI context. This could be done by creating an XML file named beans.xml and add it to the WEB-INF folder as the bellow one.
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee 
  http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
       bean-discovery-mode="all">
</beans>

12- Finally adding the project to WildFly and then starting the server. You will see in the Console view that WildFly started a service for the CDI deployment to the application.
I have pushed this stub project to my GitHub and you can find it through the bellow URL.
https://github.com/belalgalal/Blogging/tree/master/JSFCDIMavenProject

Tuesday, December 8, 2015

DynamicReports and JasperReports with JSF, Servlet and CDI

In this example, I will show how to integrate DynamicReport and JasperReports with Servlet and CDI.
Tools:
  • TIBCO Jaspersoft Studio-6.0.4.final.
  • Eclipse  Luna Service Release 2 (4.4.2).
  • WildFly 8.x application server.
This is a screenshot from the project hierarchy on Eclipse.

1- The pom.xml file contains the required dependencies for the Servlets + JSF + CDI + DynamicReports.
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 <modelVersion>4.0.0</modelVersion>
 <groupId>com.ithinkisink</groupId>
 <artifactId>DynamicReportsWithJSFServletsAndCDI</artifactId>
 <packaging>war</packaging>
 <version>0.0.1-SNAPSHOT</version>
 <name>DynamicReportsWithJSFServletsAndCDI Maven Webapp</name>

 <dependencies>
  <dependency>
   <groupId>javax.inject</groupId>
   <artifactId>javax.inject</artifactId>
   <version>1</version>
   <scope>provided</scope>
  </dependency>
  <dependency>
   <groupId>javax.faces</groupId>
   <artifactId>jsf-api</artifactId>
   <version>2.1</version>
   <scope>provided</scope>
  </dependency>
  <dependency>
   <groupId>javax.servlet</groupId>
   <artifactId>javax.servlet-api</artifactId>
   <version>3.1.0</version>
   <scope>provided</scope>
  </dependency>
  <dependency>
   <groupId>javax.enterprise</groupId>
   <artifactId>cdi-api</artifactId>
   <version>1.0</version>
   <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>net.sourceforge.dynamicreports</groupId>
    <artifactId>dynamicreports-core</artifactId>
    <version>4.0.0</version>
  </dependency>
 </dependencies>
 <build>
  <finalName>DynamicReportsWithJSFServletsAndCDI</finalName>
  <plugins>
   <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.1</version>
    <configuration>
     <source>1.7</source>
     <target>1.7</target>
    </configuration>
   </plugin>
  </plugins>
 </build>
</project>

2- Creating a simple JRXML template using the TIBCO Jaspersoft Studio containing an image that will pass its path dynamically as a parameter from the DynamicReportsManagedBean to the DynamicReports later on.
<?xml version="1.0" encoding="UTF-8"?>
<!-- Created with Jaspersoft Studio version 6.0.4.final using JasperReports Library version 6.0.4  -->
<!-- 2015-12-04T17:15:43 -->
<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="Invoice" pageWidth="595" pageHeight="842" columnWidth="535" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="4eedbb89-b4f6-4469-9ab6-f642a1688cf7">
 <property name="com.jaspersoft.studio.data.defaultdataadapter" value="One Empty Record"/>
 <style name="Title" forecolor="#FFFFFF" fontName="Times New Roman" fontSize="50" isBold="false" pdfFontName="Times-Bold"/>
 <style name="SubTitle" forecolor="#CCCCCC" fontName="Times New Roman" fontSize="18" isBold="false" pdfFontName="Times-Roman"/>
 <style name="Column header" forecolor="#666666" fontName="Times New Roman" fontSize="14" isBold="true"/>
 <style name="Detail" mode="Transparent" fontName="Times New Roman"/>
 <style name="Row" mode="Transparent" fontName="Times New Roman" pdfFontName="Times-Roman">
  <conditionalStyle>
   <conditionExpression><![CDATA[$V{REPORT_COUNT}%2 == 0]]></conditionExpression>
   <style mode="Opaque" backcolor="#EEEFF0"/>
  </conditionalStyle>
 </style>
 <style name="Table">
  <box>
   <pen lineWidth="1.0" lineColor="#000000"/>
   <topPen lineWidth="1.0" lineColor="#000000"/>
   <leftPen lineWidth="1.0" lineColor="#000000"/>
   <bottomPen lineWidth="1.0" lineColor="#000000"/>
   <rightPen lineWidth="1.0" lineColor="#000000"/>
  </box>
 </style>
 <style name="Table_TH" mode="Opaque" backcolor="#FFFFFF">
  <box>
   <pen lineWidth="0.5" lineColor="#000000"/>
   <topPen lineWidth="0.5" lineColor="#000000"/>
   <leftPen lineWidth="0.5" lineColor="#000000"/>
   <bottomPen lineWidth="0.5" lineColor="#000000"/>
   <rightPen lineWidth="0.5" lineColor="#000000"/>
  </box>
 </style>
 <style name="Table_CH" mode="Opaque" backcolor="#CACED0">
  <box>
   <pen lineWidth="0.5" lineColor="#000000"/>
   <topPen lineWidth="0.5" lineColor="#000000"/>
   <leftPen lineWidth="0.5" lineColor="#000000"/>
   <bottomPen lineWidth="0.5" lineColor="#000000"/>
   <rightPen lineWidth="0.5" lineColor="#000000"/>
  </box>
 </style>
 <style name="Table_TD" mode="Opaque" backcolor="#FFFFFF">
  <box>
   <pen lineWidth="0.5" lineColor="#000000"/>
   <topPen lineWidth="0.5" lineColor="#000000"/>
   <leftPen lineWidth="0.5" lineColor="#000000"/>
   <bottomPen lineWidth="0.5" lineColor="#000000"/>
   <rightPen lineWidth="0.5" lineColor="#000000"/>
  </box>
  <conditionalStyle>
   <conditionExpression><![CDATA[$V{REPORT_COUNT}%2 == 0]]></conditionExpression>
   <style backcolor="#D8D8D8"/>
  </conditionalStyle>
 </style>
 <subDataset name="tableDataset" uuid="f13e6d36-5148-4ecc-bbe3-3035def80980">
  <queryString>
   <![CDATA[]]>
  </queryString>
 </subDataset>
 <parameter name="invoiceNo" class="java.lang.String"/>
 <parameter name="billingCompanyName" class="java.lang.String"/>
 <parameter name="billingCompanyAddress" class="java.lang.String"/>
 <parameter name="billingCompanyFirstState" class="java.lang.String"/>
 <parameter name="billingCompanySecondState" class="java.lang.String"/>
 <parameter name="shippingName" class="java.lang.String"/>
 <parameter name="shippingAddress" class="java.lang.String"/>
 <parameter name="shippingFirstState" class="java.lang.String"/>
 <parameter name="shippingSecondState" class="java.lang.String"/>
 <parameter name="IMAGE_PATH" class="java.lang.String"/>
 <queryString language="SQL">
  <![CDATA[]]>
 </queryString>
 <field name="itemNo" class="java.lang.String"/>
 <field name="description" class="java.lang.String"/>
 <field name="unitCost" class="java.lang.Double"/>
 <field name="quantity" class="java.lang.Integer"/>
 <group name="Gruppo1">
  <groupExpression><![CDATA[(int)($V{REPORT_COUNT}/15)]]></groupExpression>
  <groupHeader>
   <band/>
  </groupHeader>
  <groupFooter>
   <band>
    <property name="local_mesure_unitheight" value="pixel"/>
    <property name="com.jaspersoft.studio.unit.height" value="px"/>
   </band>
  </groupFooter>
 </group>
 <title>
  <band height="196" splitType="Stretch">
   <staticText>
    <reportElement x="0" y="90" width="84" height="25" uuid="57aed2b1-4f4e-40a3-a6ad-54dae8dd4c5a">
     <property name="local_mesure_unitheight" value="pixel"/>
     <property name="com.jaspersoft.studio.unit.height" value="px"/>
    </reportElement>
    <textElement>
     <font size="16" isBold="true"/>
    </textElement>
    <text><![CDATA[Bill to:]]></text>
   </staticText>
   <line>
    <reportElement x="0" y="80" width="556" height="1" uuid="806ce5df-1219-4876-ae0c-ca7405b1f246">
     <property name="local_mesure_unitheight" value="pixel"/>
     <property name="com.jaspersoft.studio.unit.height" value="px"/>
    </reportElement>
   </line>
   <staticText>
    <reportElement x="400" y="90" width="84" height="25" uuid="139ebe8d-25b0-411e-986c-270015400874">
     <property name="local_mesure_unitheight" value="pixel"/>
     <property name="com.jaspersoft.studio.unit.height" value="px"/>
    </reportElement>
    <textElement>
     <font size="16" isBold="true"/>
    </textElement>
    <text><![CDATA[Ship to:]]></text>
   </staticText>
   <staticText>
    <reportElement x="415" y="10" width="50" height="20" uuid="0f86baff-6386-4f3f-b3fe-2388707babe8"/>
    <box rightPadding="4"/>
    <textElement textAlignment="Right"/>
    <text><![CDATA[Date:]]></text>
   </staticText>
   <textField pattern="EEEEE dd MMMMM yyyy">
    <reportElement x="465" y="10" width="84" height="20" uuid="bb10dbe1-0a4f-4722-9953-c163b63cf979"/>
    <textFieldExpression><![CDATA[new java.util.Date()]]></textFieldExpression>
   </textField>
   <image hAlign="Center">
    <reportElement x="0" y="0" width="65" height="60" uuid="94883631-a913-43e2-b182-ab8d77d0181e"/>
    <imageExpression><![CDATA[$P{IMAGE_PATH} + "/invoice_logo.png"]]></imageExpression>
   </image>
   <textField pattern="EEEEE dd MMMMM yyyy">
    <reportElement x="465" y="30" width="84" height="20" uuid="3836ce65-eca3-4cad-a6de-b1818def0a2b"/>
    <textFieldExpression><![CDATA[$P{invoiceNo}]]></textFieldExpression>
   </textField>
   <staticText>
    <reportElement x="415" y="30" width="50" height="20" uuid="0b3f9342-da78-4cfa-9fc5-2301c4749678"/>
    <box rightPadding="4"/>
    <textElement textAlignment="Right"/>
    <text><![CDATA[Invoice #]]></text>
   </staticText>
   <staticText>
    <reportElement x="95" y="0" width="210" height="25" uuid="e622555d-198b-4ccd-a4a1-c59c53304058">
     <property name="local_mesure_unitheight" value="pixel"/>
     <property name="com.jaspersoft.studio.unit.height" value="px"/>
    </reportElement>
    <textElement>
     <font size="19" isBold="true"/>
    </textElement>
    <text><![CDATA[I think, I sink!]]></text>
   </staticText>
   <staticText>
    <reportElement x="95" y="55" width="205" height="15" uuid="b8cc42fd-b569-497d-834d-7e854040ad18"/>
    <text><![CDATA[+20 10 000 0000]]></text>
   </staticText>
   <staticText>
    <reportElement x="95" y="25" width="205" height="15" uuid="c226e44d-3bb5-4145-b0b3-903bf1d79fde"/>
    <text><![CDATA[Sesame street]]></text>
   </staticText>
   <staticText>
    <reportElement x="95" y="40" width="205" height="15" uuid="b96f7183-44f8-43ad-ba60-43d8fbf50b6e"/>
    <text><![CDATA[Sesame city]]></text>
   </staticText>
   <textField>
    <reportElement x="0" y="115" width="150" height="15" uuid="7e9e0af2-08d1-4997-b3e1-971e74b1c8ad">
     <property name="local_mesure_unitheight" value="pixel"/>
     <property name="com.jaspersoft.studio.unit.height" value="px"/>
    </reportElement>
    <textFieldExpression><![CDATA[$P{billingCompanyName}]]></textFieldExpression>
   </textField>
   <textField>
    <reportElement x="0" y="130" width="150" height="15" uuid="a0eaddab-ed2f-46fc-b9fc-d0d9747c6df3">
     <property name="local_mesure_unitheight" value="pixel"/>
     <property name="com.jaspersoft.studio.unit.height" value="px"/>
    </reportElement>
    <textFieldExpression><![CDATA[$P{billingCompanyAddress}]]></textFieldExpression>
   </textField>
   <textField>
    <reportElement x="0" y="145" width="150" height="15" uuid="f9371f1e-125e-408d-a0f0-aa0ea5adc171">
     <property name="local_mesure_unitheight" value="pixel"/>
     <property name="com.jaspersoft.studio.unit.height" value="px"/>
    </reportElement>
    <textFieldExpression><![CDATA[$P{billingCompanyFirstState}]]></textFieldExpression>
   </textField>
   <textField>
    <reportElement x="0" y="160" width="150" height="15" uuid="c14d7758-80e6-45d7-8526-797330e515d3">
     <property name="local_mesure_unitheight" value="pixel"/>
     <property name="com.jaspersoft.studio.unit.height" value="px"/>
    </reportElement>
    <textFieldExpression><![CDATA[$P{billingCompanySecondState}]]></textFieldExpression>
   </textField>
   <textField>
    <reportElement x="400" y="160" width="140" height="15" uuid="a9baefea-45b3-4826-a81e-3572507eea6d">
     <property name="local_mesure_unitheight" value="pixel"/>
     <property name="com.jaspersoft.studio.unit.height" value="px"/>
    </reportElement>
    <textFieldExpression><![CDATA[$P{shippingSecondState}]]></textFieldExpression>
   </textField>
   <textField>
    <reportElement x="400" y="145" width="140" height="15" uuid="338e1f40-9a03-4b77-aedc-568b1907628b">
     <property name="local_mesure_unitheight" value="pixel"/>
     <property name="com.jaspersoft.studio.unit.height" value="px"/>
    </reportElement>
    <textFieldExpression><![CDATA[$P{shippingFirstState}]]></textFieldExpression>
   </textField>
   <textField>
    <reportElement x="400" y="130" width="140" height="15" uuid="54e6473f-44ef-4839-8f87-29e65af72561">
     <property name="local_mesure_unitheight" value="pixel"/>
     <property name="com.jaspersoft.studio.unit.height" value="px"/>
    </reportElement>
    <textFieldExpression><![CDATA[$P{shippingAddress}]]></textFieldExpression>
   </textField>
   <textField>
    <reportElement x="400" y="115" width="140" height="15" uuid="1f093c2e-2d6f-403e-9c11-160dbaf82e6f">
     <property name="local_mesure_unitheight" value="pixel"/>
     <property name="com.jaspersoft.studio.unit.height" value="px"/>
    </reportElement>
    <textFieldExpression><![CDATA[$P{shippingName}]]></textFieldExpression>
   </textField>
  </band>
 </title>
 <columnHeader>
  <band height="24">
   <staticText>
    <reportElement x="366" y="4" width="80" height="20" uuid="be792358-dade-4931-965d-fe4d4958b71c"/>
    <textElement textAlignment="Center">
     <font size="12" isBold="false"/>
    </textElement>
    <text><![CDATA[Quantity]]></text>
   </staticText>
   <rectangle>
    <reportElement mode="Opaque" x="10" y="2" width="531" height="20" backcolor="#C0D4EC" uuid="ce42b0b0-0d12-48c1-8020-576969255150"/>
    <graphicElement>
     <pen lineColor="#666666"/>
    </graphicElement>
   </rectangle>
   <staticText>
    <reportElement x="430" y="3" width="111" height="18" uuid="95b85246-2e67-42d0-9e41-987314cddba0"/>
    <textElement textAlignment="Center">
     <font size="12" isBold="false"/>
    </textElement>
    <text><![CDATA[Price $]]></text>
   </staticText>
   <staticText>
    <reportElement x="261" y="3" width="80" height="20" uuid="40050754-f800-4283-a0ed-64894f5652a2"/>
    <textElement textAlignment="Center">
     <font size="12" isBold="false"/>
    </textElement>
    <text><![CDATA[Unit Cost $]]></text>
   </staticText>
   <staticText>
    <reportElement x="10" y="3" width="50" height="20" uuid="299467fd-8d2b-48b0-af5b-769cc9d9bb37"/>
    <textElement textAlignment="Center">
     <font size="12" isBold="false"/>
    </textElement>
    <text><![CDATA[Item]]></text>
   </staticText>
   <staticText>
    <reportElement x="71" y="2" width="179" height="20" uuid="9818ad45-9dc2-4e62-821c-953f3801de84"/>
    <textElement textAlignment="Center">
     <font size="12" isBold="false"/>
    </textElement>
    <text><![CDATA[Description]]></text>
   </staticText>
   <staticText>
    <reportElement x="347" y="3" width="80" height="20" uuid="f10ae7d8-7499-404a-a1ab-a2ce63b22b3b"/>
    <textElement textAlignment="Center">
     <font size="12" isBold="false"/>
    </textElement>
    <text><![CDATA[Quantity]]></text>
   </staticText>
  </band>
 </columnHeader>
 <detail>
  <band height="29">
   <textField>
    <reportElement x="11" y="5" width="54" height="20" uuid="0cd6aa63-bd20-45fb-8543-51931badd2fc"/>
    <textElement textAlignment="Left"/>
    <textFieldExpression><![CDATA[$F{itemNo}]]></textFieldExpression>
   </textField>
   <textField>
    <reportElement x="70" y="5" width="180" height="20" uuid="1be950c3-370a-43fa-9510-2ee8db740774"/>
    <textElement textAlignment="Left"/>
    <textFieldExpression><![CDATA[$F{description}]]></textFieldExpression>
   </textField>
   <textField>
    <reportElement x="261" y="5" width="80" height="20" uuid="3637c327-f832-4e7c-bb82-4cf41e607ca6"/>
    <textElement textAlignment="Left"/>
    <textFieldExpression><![CDATA[$F{unitCost}]]></textFieldExpression>
   </textField>
   <textField>
    <reportElement x="347" y="5" width="80" height="20" uuid="e9bfe6dc-7101-4d22-90a7-4766122c4e8a"/>
    <textElement textAlignment="Left"/>
    <textFieldExpression><![CDATA[$F{quantity}]]></textFieldExpression>
   </textField>
   <textField>
    <reportElement x="430" y="5" width="118" height="20" uuid="77c9d024-651d-4207-9f32-8637cd4dd449"/>
    <textElement textAlignment="Left"/>
    <textFieldExpression><![CDATA[$F{unitCost} * $F{quantity}]]></textFieldExpression>
   </textField>
  </band>
 </detail>
 <lastPageFooter>
  <band height="177">
   <staticText>
    <reportElement positionType="Float" x="-1" y="30" width="261" height="101" uuid="1a0d7088-5af7-4865-8be1-41ec5f51fb36"/>
    <box>
     <topPen lineWidth="1.1" lineStyle="Dashed"/>
     <leftPen lineWidth="1.1" lineStyle="Dashed"/>
     <bottomPen lineWidth="1.1" lineStyle="Dashed"/>
     <rightPen lineWidth="1.1" lineStyle="Dashed"/>
    </box>
    <text><![CDATA[Your notes here]]></text>
   </staticText>
   <staticText>
    <reportElement positionType="Float" mode="Opaque" x="0" y="147" width="556" height="30" backcolor="#E6E8E9" uuid="36aa233d-4305-48e6-974a-1bbf89bb3c8f"/>
    <textElement textAlignment="Center" verticalAlignment="Middle">
     <font fontName="Serif" size="9" isItalic="true"/>
    </textElement>
    <text><![CDATA[THANKYOU FOR YOUR BUSINESS]]></text>
   </staticText>
  </band>
 </lastPageFooter>
</jasperReport>

3- Creating an Item class that will be the model object containing the data that be binded to the JRXML template fields. Also, I created an InvoiceDetails class that will have the data that will be binded to the JRXML template parameters.
package com.ithinkisink.model;

/**
 * 
 * @author Belal
 *
 */
public class Item {

 private String itemNo;
 private String description;
 private double unitCost;
 private int quantity;
 
 public Item(String itemNo, String description, double unitCost, int quantity) {
  super();
  this.itemNo = itemNo;
  this.description = description;
  this.unitCost = unitCost;
  this.quantity = quantity;
 }

 public String getItemNo() {
  return itemNo;
 }

 public void setItemNo(String itemNo) {
  this.itemNo = itemNo;
 }

 public String getDescription() {
  return description;
 }

 public void setDescription(String description) {
  this.description = description;
 }

 public double getUnitCost() {
  return unitCost;
 }

 public void setUnitCost(double unitCost) {
  this.unitCost = unitCost;
 }

 public int getQuantity() {
  return quantity;
 }

 public void setQuantity(int quantity) {
  this.quantity = quantity;
 }
}

4- The DynamicReportsManagedBean will be responsible to prepare the parameters map and the JRBeanCollectionDataSource containing List<Item> that will be binded to the JRXML fields.
package com.ithinkisink.managedbean;

import static net.sf.dynamicreports.report.builder.DynamicReports.report;

import java.io.InputStream;
import java.io.OutputStream;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;

import javax.annotation.PostConstruct;
import javax.enterprise.context.SessionScoped;
import javax.inject.Named;
import javax.servlet.ServletContext;

import net.sf.dynamicreports.report.exception.DRException;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;

import com.ithinkisink.model.InvoiceDetails;
import com.ithinkisink.model.Item;

/**
 * 
 * @author Belal
 *
 */
@Named
@SessionScoped
public class DynamicReportsManagedBean implements Serializable {

 private static final long serialVersionUID = -1;

 private String invoiceName;
 private JRBeanCollectionDataSource beanCollectionDataSource;
 private Map<String, Object> parameters;

 @PostConstruct
 public void init() {
  invoiceName="Invoice.jrxml";
  
  List<Item> itemList = new ArrayList<>(Arrays.asList(
    new Item("01", "Item 01 description", 1.1, 1), 
    new Item("02", "Item 02 description", 2.2, 2),
    new Item("03", "Item 03 description", 3.3, 3)));
  beanCollectionDataSource = new JRBeanCollectionDataSource(itemList);
  
  parameters = (new InvoiceDetails("INV#01", "Billing Company", "Billing Company Add", 
    "Billing Company State 1", "Billing Company State 2", 
    "Shipping Name", "Shipping Address", "Shipping State 1", "Shipping State 2", 1000)).toMap();
 }
 
 /**
  * Preparing an output stream of the generated PDF invoice.
  * 
  * @return
  */
 public OutputStream getOS(ServletContext context, OutputStream outputStream) {

  parameters.put("IMAGE_PATH", context.getRealPath("/jasper/invoices"));

  InputStream is = context.getResourceAsStream("/jasper/invoices/" + invoiceName);

  try {
   report().setTemplateDesign(is)
     .setDataSource(beanCollectionDataSource)
     .setParameters(parameters).toPdf(outputStream);
  } catch (DRException e) {
   e.printStackTrace();
  }

  return outputStream;
 }

 // setters and getters
 public String getInvoiceName() {
  return invoiceName;
 }

 public void setInvoiceName(String invoiceName) {
  this.invoiceName = invoiceName;
 }

 public JRBeanCollectionDataSource getBeanCollectionDataSource() {
  return beanCollectionDataSource;
 }

 public void setBeanCollectionDataSource(
   JRBeanCollectionDataSource beanCollectionDataSource) {
  this.beanCollectionDataSource = beanCollectionDataSource;
 }

 public void setParameters(Map<String, Object> parameters) {
  this.parameters = parameters;
 }

 public Map<String, Object> getParameters() {
  return parameters;
 }
}

5- The CDI enables us to inject an instance of the DynamicReportsManagedBean  to the DynamicReportsServlet. The servlet will handle the response output stream which will present the created output stream from the DynamicReports of the template.
package com.ithinkisink.servlet;

import java.io.IOException;
import java.io.OutputStream;

import javax.inject.Inject;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.ithinkisink.managedbean.DynamicReportsManagedBean;

/**
 * 
 * @author Belal
 *
 */
public class DynamicReportsServlet extends HttpServlet {
 private static final long serialVersionUID = 1L;

 @Inject
 private DynamicReportsManagedBean dynamicReportsManagedBean;
 
 @Override
 protected void doGet(HttpServletRequest req, HttpServletResponse resp)
   throws ServletException, IOException {
  resp.setContentType("application/pdf");
  OutputStream out = resp.getOutputStream();
  out = dynamicReportsManagedBean.getOS(getServletContext(), out);
  out.close();
 }
 
 @Override
 protected void doPost(HttpServletRequest req, HttpServletResponse resp)
   throws ServletException, IOException {
  super.doPost(req, resp);
  this.doGet(req, resp);
 }
 
 public void setDynamicReportsManagedBean(
   DynamicReportsManagedBean dynamicReportsManagedBean) {
  this.dynamicReportsManagedBean = dynamicReportsManagedBean;
 }
 
 public DynamicReportsManagedBean getDynamicReportsManagedBean() {
  return dynamicReportsManagedBean;
 }
}

6- I prefer the old school in adding the servlet to the web.xml.
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">

 <display-name>DynamicReportsWithJSFServletsAndCDI Maven Webapp</display-name>

 <servlet>
  <description></description>
  <display-name>DynamicReportsServlet</display-name>
  <servlet-name>DynamicReportsServlet</servlet-name>
  <servlet-class>com.ithinkisink.servlet.DynamicReportsServlet</servlet-class>
 </servlet>
 <servlet-mapping>
  <servlet-name>DynamicReportsServlet</servlet-name>
  <url-pattern>/*</url-pattern>
 </servlet-mapping>
 
 <welcome-file-list>
  <welcome-file>/index.xhtml</welcome-file>
 </welcome-file-list>
</web-app>

7- The index.xhtml contains an <iframe> that points to the servlet.
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
 xmlns:h="http://java.sun.com/jsf/html">

<h:head>
 <title>DynamicReports with Servlets, JSF and CDI</title>
</h:head>

<h:body>
 <h:form>
  <iframe name="receipt" height="600" id="theIFrame" width="100%"
   src="http://localhost:8080/DynamicReportsWithJSFServletsAndCDI" />
 </h:form>
</h:body>

</html>

8- The final output by running the example.
You can find the complete example on my Github from this link:

Sunday, September 27, 2015

Enable autocomplete for JSF in Eclipse

The autocomplete is not presented with Eclipse to discover the classes annotated with the @ManagedBean in the XHTML pages. Fortunately, JBoss Tools plugin enables to by installing the JBoss Tools JSF as shown in the bellow screenshot.

This is the link for installing the JBoss Tools for Eclipse Luna.
Update:
I have tried the latest Eclipse Mars and I figured out that Eclipse made things easier for us as developers. Now Eclipse Mars is delivered with support for autocomplete of the JSF Managed Beans. That's cool!