Work with Chart API and PHP/JavaBridge

Hi, 
 
I use the Chart API and the PHP/JavaBridge (php-java-bridge.sourceforge.net). I downloaded the ChartAPI demos from eclipse, and there I tested the StandaloneChart/src/StandaloneChartOSGi.java in the eclipse-environment. It works, I get my chart. 
 
Now, I assign the code to PHP. 
 
In the named above code there is at line 122 this snippet (java):

//Returns a singleton instance of the Chart Engine 
ChartEngine ce = ChartEngine.instance(pf); 
//Returns a singleton instance of the Generator 
IGenerator gr = ce.getGenerator();

In PHP the snipped is modified to:

$ce = new Java("org.eclipse.birt.chart.api.ChartEngine"); 
$ce->instance($pf); 
$gr = $ce->getGenerator();

I call the script in Browser and I get the following error:

atal error: Uncaught o:Exception]:"java.lang.Exception: Invoke failed: [[c:ChartEngine->getGenerator. Cause: java.lang.NoSuchMethodException: getGenerator(). Candidates: [] VM: <a href='mailto:' title='E-mail Link' class='bbc_email'>1.6.0_11@http://java.sun.com</a>/" at: #-5 php.java.bridge.JavaBridge.Invoke(JavaBridge.java:1043) #-4 php.java.bridge.Request.handleRequest(Request.java:409) #-3 
....

Why the script is printing this error "NoSuchMethodException: getGenerator()"? In the used class "ChartEngine" there is a method named "getGenerator". (<a class='bbc_url' href='http://www.birt-exchange.com/documentation/BIRT_220/ChartJavadoc/chart/api/org/eclipse/birt/chart/api/ChartEngine.html'>ChartEngine (BIRT Chart Engine API)</a>) 
 
I think I'm blind, I need help. Thank you.

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Comments

JasonW

Did you get this to work?

mreder

Not really. 
The problem above I solved, but I get other errors now. Maybe you have a solution? 
 
The error:

Fatal error: Uncaught o:Exception]:"java.lang.Exception: Invoke failed: [[o:Generator->build((i:IDisplayServer)[o:SwingDisplayServer], (i:Chart)[o:ChartWithAxesImpl], (i:Bounds)[o:BoundsImpl], (i:IExternalContext)null, (o:RunTimeContext)null, (i:IStyleProcessor)null). Cause: org.eclipse.birt.chart.exception.ChartException: Unable to process dataset content specified as {0=14.4, 1=7.2, 2=20.1} for dataset org.eclipse.birt.chart.model.data.impl.NumberDataS etImpl@98d303 (values: {0=14.4, 1=7.2, 2=20.1}) VM: <a href='mailto:' title='E-mail Link' class='bbc_email'>1.6.0_11@http://java.sun.com</a>/" at: #-10 org.eclipse.birt.chart.factory.Generator.build(Gen erator.java:1024) #-9 sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method) #-8 sun.reflect.NativeMethodAccessorImpl.invoke(Unknow n Source) #0 <a class='bbc_url' href='http://localhost:8080/JavaBridge/java/Java.inc(265):'>http://localhost:8080/JavaBridge/java/Java.inc(265):</a> java_ThrowExceptionProxyFactory->getProxy(121, '@V', true) #1 <a class='bbc_url' href='http://localhost:8080/JavaBridge/java/Java.inc(417):'>http://localhost:8080/JavaBridge/java/Java.inc(417):</a> java_Arg->getResult(true) #2 <a class='bbc_url' href='http://localhost:8080/JavaBridge/java/Java.inc(423):'>http://localhost:8080/JavaBridge/java/Java.inc(423):</a> java_Client->getWrappedResult(true in <a class='bbc_url' href='http://localhost:8080/JavaBridge/java/Java.inc'>http://localhost:8080/JavaBridge/java/Java.inc</a> on line 228

The regarding php-code:

// NumberDataSet 
$numberDataSetImpl = new Java("org.eclipse.birt.chart.model.data.impl.NumberDataSetImpl"); 
$orthoValues = $numberDataSetImpl->create( array ( 14.4, 7.2, 20.1 )); 
.... 
// Y-Series 
$barSeriesImpl = new Java("org.eclipse.birt.chart.model.type.impl.BarSeriesImpl"); 
$bs = $barSeriesImpl->create(); 
$bs->setDataSet($orthoValues); 
$bs->getLabel()->setVisible( true ); 
$position = new Java("org.eclipse.birt.chart.model.attribute.Position");

The original java-code:

// Data Set 
TextDataSet categoryValues = TextDataSetImpl.create( new String[]{ 
"Item 1", "Item 2", "Item 3"} ); 
NumberDataSet orthoValues = NumberDataSetImpl.create( new double[]{ 
14.4, 7.2, 20.1 
} ); 
... 
// Y-Series 
BarSeries bs = (BarSeries) BarSeriesImpl.create( ); 
bs.setDataSet( orthoValues ); 
bs.getLabel( ).setVisible( true ); 
bs.setLabelPosition( Position.INSIDE_LITERAL ); 
SeriesDefinition sdY = SeriesDefinitionImpl.create( );

It works under eclipse, but not in the php-engine. Curious.

The second problem is a little bit difficulter. 
 
Always I try to run the Birt in the webserver, I get the following errors:

Fatal error: Uncaught o:Exception]:"java.lang.Exception: Invoke failed: [[o:Request$PhpNull->createReportEngine([o:EngineConfig]). Cause: java.lang.NullPointerException: call object is null, check the server log file(s). VM: <a href='mailto:' title='E-mail Link' class='bbc_email'>1.6.0_11@http://java.sun.com</a>/" at: #-5 php.java.bridge.JavaBridge.Invoke(JavaBridge.java: 101 #-4 php.java.bridge.Request.handleRequest(Request.java :409) #-3 php.java.bridge.Request.handleRequests(Request.jav a:485) #0 <a class='bbc_url' href='http://localhost:8080/JavaBridge/java/Java.inc(265):'>http://localhost:8080/JavaBridge/java/Java.inc(265):</a> java_ThrowExceptionProxyFactory->getProxy(10, 'php.java.bridge...', true) #1 <a class='bbc_url' href='http://localhost:8080/JavaBridge/java/Java.inc(417):'>http://localhost:8080/JavaBridge/java/Java.inc(417):</a> java_Arg->getResult(true) #2 <a class='bbc_url' href='http://localhost:8080/JavaBridge/java/Java.inc(423):'>http://localhost:8080/JavaBridge/java/Java.inc(423):</a> java_Client->getWrappedResult(true) #3 <a class='bbc_url' href='http://localhost:8080/JavaBridge/java/Java.inc(627):'>http://localhost:8080/JavaBridge/java/Java.inc(627):</a> java_Client->getResult() #4 <a class='bbc_url' href='http://localhost:8080/JavaBridge/java/Java.inc(1753):'>http://localhost:8080/JavaBridge/java/Java.inc(1753):</a> java_Client->invokeMethod(9, 'createReportEng...', Array) #5 <a class='bbc_url' href='http://localhost:8080/JavaBridge/java/Java.inc(1866):'>http://localhost:8080/JavaBridge/java/Java.inc(1866):</a> java_JavaProxy->__call('createRepor in <a class='bbc_url' href='http://localhost:8080/JavaBridge/java/Java.inc'>http://localhost:8080/JavaBridge/java/Java.inc</a> on line 228

Locally, it works, but not on the server. The classes under the package "org.eclipse.birt.report.model.api.impl" returns always an "Null", there are not included, although there are in the liberies and the API-jar-file. 
 
Thats a 1-to-1-copy from local to web. The dirs really adjusted.

JasonW

Let me do some testing and I will get back to you.

JasonW

I have the report engine API working with the open source bridge now, which allows calling reports that contains charts. I have not tried the chart engine stand alone. I will try this next. I will put together an article that explains the process and post it.

Jason

mreder

Hi Jason,

do you have already infos to the problem?

Thanl you.

JasonW

I have not tried the chart engine yet, but I did get the report engine working with Charts. The PHP/Java Bridge can be deployed stand alone or as a J2EE app. If deployed as a J2EE app it works without any mods required. If deployed stand alone the Bridge has a problem with some static code in the Chart package. To get around this I created a Java class file with the following code:

package chart.work.around.php;
import org.eclipse.birt.chart.model.ModelPackage;
import org.eclipse.birt.chart.model.attribute.AttributePackage;
import org.eclipse.birt.chart.model.component.ComponentPackage;
import org.eclipse.birt.chart.model.data.DataPackage;
import org.eclipse.birt.chart.model.layout.LayoutPackage;
import org.eclipse.birt.chart.model.type.TypePackage;
import org.eclipse.emf.ecore.util.ExtendedMetaData;
public class ChartMetadataLoader {
public ChartMetadataLoader() {
}
public static void setupLoader(){
ExtendedMetaData extendedMetaData = ExtendedMetaData.INSTANCE;
extendedMetaData.putPackage( ModelPackage.eNS_URI,
ModelPackage.eINSTANCE );
extendedMetaData.putPackage( AttributePackage.eNS_URI,
AttributePackage.eINSTANCE );
extendedMetaData.putPackage( ComponentPackage.eNS_URI,
ComponentPackage.eINSTANCE );
extendedMetaData.putPackage( DataPackage.eNS_URI, DataPackage.eINSTANCE );
extendedMetaData.putPackage( LayoutPackage.eNS_URI,
LayoutPackage.eINSTANCE );
extendedMetaData.putPackage( TypePackage.eNS_URI, TypePackage.eINSTANCE );
}
}

I then put this in a jar and wrote a php page like:

<?php
//define ("JAVA_DEBUG", true);
require_once ("java/Java.inc");
$session = java_session();
$here = getcwd();

try {
java_require("$here/BIRTReportEngine2.3.1/lib/chartphp.jar;$here/BIRTReportEngine2.3.1/lib/chartengineapi.jar;$here/BIRTReportEngine2.3.1/lib/com.ibm.icu_3.8.1.v20080530.jar;$here/BIRTReportEngine2.3.1/lib/commons-cli-1.0.jar;$here/BIRTReportEngine2.3.1/lib/coreapi.jar;$here/BIRTReportEngine2.3.1/lib/crosstabcoreapi.jar;$here/BIRTReportEngine2.3.1/lib/dataadapterapi.jar;$here/BIRTReportEngine2.3.1/lib/dataaggregationapi.jar;$here/BIRTReportEngine2.3.1/lib/dteapi.jar;$here/BIRTReportEngine2.3.1/lib/engineapi.jar;$here/BIRTReportEngine2.3.1/lib/flute.jar;$here/BIRTReportEngine2.3.1/lib/js.jar;$here/BIRTReportEngine2.3.1/lib/modelapi.jar;$here/BIRTReportEngine2.3.1/lib/modelodaapi.jar;$here/BIRTReportEngine2.3.1/lib/odadesignapi.jar;$here/BIRTReportEngine2.3.1/lib/org.apache.commons.codec_1.3.0.v20080530-1600.jar;$here/BIRTReportEngine2.3.1/lib/dataextraction.jar;$here/BIRTReportEngine2.3.1/lib/org.eclipse.emf.common_2.4.0.v200808251517.jar;$here/BIRTReportEngine2.3.1/lib/org.eclipse.emf.ecore.xmi_2.4.1.v200808251517.jar;$here/BIRTReportEngine2.3.1/lib/org.eclipse.emf.ecore_2.4.1.v200808251517.jar;$here/BIRTReportEngine2.3.1/lib/org.w3c.css.sac_1.3.0.v200805290154.jar;$here/BIRTReportEngine2.3.1/lib/scriptapi.jar;");

if(is_null(java_values($session->get("birtengine")))) {
$birtEngineConfig = new java("org.eclipse.birt.report.engine.api.EngineConfig");
$birtEngineConfig->setBIRTHome("C:/xampplite/htdocs/birtphp/BIRTReportEngine2.3.1");
$birtPlatform = new java("org.eclipse.birt.core.framework.Platform");
$birtPlatform->startup($birtEngineConfig);
$birtFactory = $birtPlatform->createFactoryObject( "org.eclipse.birt.report.engine.ReportEngineFactory" );
$birtEngine = $birtFactory->createReportEngine( $birtEngineConfig );
$session->put("birtengine", $birtEngine);

}
$birtEngine = java_values($session->get("birtengine"));
$setupChart = new java("chart.work.around.php.ChartMetadataLoader");
$setupChart->setupLoader();
$report = $birtEngine->openReportDesign("$here/Reports/TopNpercent.rptdesign");
$task = $birtEngine->createRunAndRenderTask($report);
$taskOptions = new java("org.eclipse.birt.report.engine.api.HTMLRenderOption");
$outputStream = new java("java.io.ByteArrayOutputStream");
$taskOptions->setOutputStream($outputStream);
$taskOptions->setOutputFormat("html");
$ih = new java( "org.eclipse.birt.report.engine.api.HTMLServerImageHandler");
$taskOptions->setImageHandler($ih);
$taskOptions->setBaseImageURL("http://localhost/birtphp");
$taskOptions->setImageDirectory($here);
$task->setRenderOption( $taskOptions );
$task->run();
$task->close();
//$birtEngine->destroy();
//$birtPlatform->shutdown();
echo $outputStream;
} catch (JavaException $e) {
}

Jason