topic Re: [resolved] New custom component does not recognise library (v.5.0.1) in Talend Studio

[resolved] New custom component does not recognise library (v.5.0.1)

Anonymous — Sat, 16 Nov 2024 12:29:32 GMT

Hi,
I'm creating a new component and included the api of the application I want to integrate to. None of the classes I reference can be resolved by the component.
I have read subaro's EXCELLENT tutorial, seen all Carl's youtube tutorials, Google'd all I could about the issues I'm experiencing, and find myself a little daft for not being able to achieve.
Windows 7 Professional SP1
Talend Open Studio for ESB
Version: 5.0.1
Build id: r74687-20111216-0210
java version "1.6.0_26"
Java(TM) SE Runtime Environment (build 1.6.0_26-b03)

Error:
Exception in thread "main" java.lang.Error: Unresolved compilation problems:
com.bmc cannot be resolved to a type
com.bmc cannot be resolved to a type
com.bmc.arsys.api.Constants cannot be resolved to a variable
tRemedyTest_begin.javajet

<%@ jet 
	imports="
		org.talend.core.model.process.INode 
		org.talend.core.model.process.ElementParameterParser 
		org.talend.core.model.metadata.IMetadataTable 
		org.talend.core.model.metadata.IMetadataColumn 
		org.talend.core.model.process.IConnection
		org.talend.core.model.process.IConnectionCategory
		org.talend.designer.codegen.config.CodeGeneratorArgument
		org.talend.core.model.metadata.types.JavaTypesManager
		org.talend.core.model.metadata.types.JavaType
		java.util.List 
    	java.util.Map
	"
%>
<%
	CodeGeneratorArgument codeGenArgument = (CodeGeneratorArgument) argument;
	INode node = (INode)codeGenArgument.getArgument();
	String cid = node.getUniqueName(); 
	String arserver = ElementParameterParser.getValue(node, "__ARSERVER__");
	String username = ElementParameterParser.getValue(node, "__USERNAME__");
	String password = ElementParameterParser.getValue(node, "__PASSWORD__");
	
%>
System.setProperty("org.apache.commons.logging.Log", "org.apache.commons.logging.impl.NoOpLog");
com.bmc.arsys.api.ARServerUser aruser_<%=cid%> = new com.bmc.arsys.api.ARServerUser("<%=username%>", "<%=password%>", "", "<%=arserver%>");
String sysname = com.bmc.arsys.api.Constants.AR_SYSTEM_NAME;
System.out.println(sysname);

tRemedyTest_java.xml

<?xml version="1.0" encoding="UTF-8"?>
<COMPONENT>
	<HEADER AUTHOR="Me" RELEASE_DATE="20111220A" COMPATIBILITY="ALL"
			PLATEFORM="ALL" SERIAL="" VERSION="0.102" STATUS="ALPHA" STARTABLE="true">
		<SIGNATURE/>
	</HEADER>
	
	<FAMILIES>
		<FAMILY>Application/BMC/Remedy</FAMILY>
	</FAMILIES>
	
	<DOCUMENTATION>
		<URL></URL>
	</DOCUMENTATION>
	
	<CONNECTORS>
		<CONNECTOR CTYPE="FLOW"/>
	</CONNECTORS>
	
	<PARAMETERS>
		<PARAMETER NAME="ARSERVER" FIELD="TEXT" REQUIRED="true" NUM_ROW ="1" />
    	<PARAMETER NAME="USERNAME" FIELD="TEXT" REQUIRED="true" NUM_ROW ="2" />
		<PARAMETER NAME="PASSWORD" FIELD="TEXT" REQUIRED="true" NUM_ROW ="2" />
		<PARAMETER NAME="AUTH" FIELD="TEXT" REQUIRED="false" NUM_ROW ="3" />
		<PARAMETER NAME="SCHEMA" FIELD="SCHEMA_TYPE" REQUIRED="true" NUM_ROW="4"/>
	</PARAMETERS>
	
	<ADVANCED_PARAMETERS>
		<PARAMETER NAME="DESC" FIELD="CHECK" REQUIRED="false" NUM_ROW ="1" />
    	<PARAMETER NAME="REPL" FIELD="CHECK" REQUIRED="false" NUM_ROW ="2" />
    	<PARAMETER NAME="UND" FIELD="CHECK" REQUIRED="false" NUM_ROW ="3" />
    	<PARAMETER NAME="LAB" FIELD="CHECK" REQUIRED="false" NUM_ROW ="4" />
    	<PARAMETER NAME="PORT" FIELD="INT" REQUIRED="false" NUM_ROW ="5" />
		<PARAMETER NAME="RPC" FIELD="INT" REQUIRED="false" NUM_ROW ="6" />
	</ADVANCED_PARAMETERS>
	
	<CODEGENERATION>
		<IMPORTS>
			<IMPORT NAME="arapi7604" MODULE="arapi7604.jar" REQUIRED="true" />
			<IMPORT NAME="log4j" MODULE="log4j-1.2.14.jar" REQUIRED="true" />
		</IMPORTS>
	</CODEGENERATION>
	<RETURNS>
		<RETURN NAME="NB_LINE" TYPE="id_Integer" AVAILABILITY="AFTER"/>
	</RETURNS>
</COMPONENT>

arapi7604.jar is in the component directory.

public abstract interface com.bmc.arsys.api.Constants {
    public static final java.lang.String AR_SYSTEM_NAME = "Action Request System";
}
public class com.bmc.arsys.api.ARServerUser {
   public ARServerUser(java.lang.String arg0, java.lang.String arg1, java.lang.String arg2, java.lang.String arg3);
}

Help would be greatly appreciated.
Kind regards,
Johan.

Re: [resolved] New custom component does not recognise library (v.5.0.1)

Anonymous — Thu, 22 Dec 2011 16:09:57 GMT

Hi there,
You need to configure your component to declare the dependency on the jar file in an XML section something like this:
<CODEGENERATION>
<IMPORTS>
<IMPORT NAME="RequiredLib" MODULE="requiredlib-1.2.3.jar" REQUIRED="true"/>
</IMPORTS>
</CODEGENERATION>
The 3rd party jar(s) should also be included in the Studio as external libraries. There are two ways to do this - manually deploy the jar to the studios lib/java folder, or letting it happen automatically as part of your component deployment/distribution.
For internal use, bundling the jar with your component may be convenient, but if you want to share your component and the JAR is covered by a 3rd party license that prevents distribution then this may not be an option for you. In that case each component user would provide their own JARs.
You should find more discussion/detail on these points in this thread: https://community.talend.com/t5/Design-and-Development/creation-component-import-java-libraries/td-p/81368
HTH

Re: [resolved] New custom component does not recognise library (v.5.0.1)

Anonymous — Thu, 22 Dec 2011 16:20:17 GMT

Thank you irahman,
as you can see from the code snippets I included, I have declared the jar file in the XML section, it is also included in my component directory.
When I copy the jar to <Talend_home>/lib/java it is recognized, but it's not recognized from within my components directory (where the .xml and .javajet files are located).
So if I would want to share my component it will not run unless the jar files are duplicated to the <Talend_home>/lib/java directory.
Kind regards,
Johan Wasserman.

Re: [resolved] New custom component does not recognise library (v.5.0.1)

Anonymous — Thu, 22 Dec 2011 16:30:15 GMT

Update:
When I quit Open Studio and start it up again, my code works. If I make any code changes and push the component to the Palette, my jar's aren't recognized, I have to quit Open Studio and start it up again to test the code changes.
This may be a bug in the version of Open Studio I have, I'll install an older version of Open Studio and see if that works.
Kind regards,
Johan Wasserman.

Re: [resolved] New custom component does not recognise library (v.5.0.1)

Anonymous — Thu, 22 Dec 2011 17:04:42 GMT

Works in Open Studio Version: 4.2.3 with the jars only in my component directory (not in <Talend_home>/lib/java).
Suggest this may be a bug in 5.0.1
Kind regards,
Johan.

Re: [resolved] New custom component does not recognise library (v.5.0.1)

Anonymous — Thu, 22 Dec 2011 17:15:38 GMT

Agreed - it does sound like a possible regression, though it doesn't occur in all cases as I have a custom component in 5.0.1, and my jar is being deployed from the component folder to lib/java automatically, and being recognised.
The 'Modules' view might give you more insight into what the Studio thinks is going on. It will show if the jar is installed or not.
If this issue is reliably reproducible (sounds like it is) then could you report it in JIRA?