So, Harsha, the issue isn't resolved, but I have some additional
information comparing the OSGI output from the API Manager v2.1.0 to the
ESB v4.8.0.
I ran each server with the system property -DosgiConsole, so I could query
the bundle information. In both cases I let the WSO2 framework do the
bundling by putting the raw jar into the
<WSO2_HOME>repository/components/lib. The generate MANIFEST.MF files by the
framework were listed earlier in this thread.
Below are the results after executing the OSGI command b <bundle_id> both
before the handler is executed and after it has executed (albeit with an
error in the APIM version). What is most notable is that the missing
package org.apache.synapse.core.axis2 is clearly imported in the ESB
version, but not in the APIM version.
I'm a newbie to WSO2/OSGI, so I could be missing something ... but I wonder
if this helps you diagnose what might be going on.
Thank you.
For reference, here are the import statements in the Handler class:
import com.google.common.base.Joiner;
import org.apache.axiom.om.*;
import org.apache.axis2.databinding.types.URI;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.synapse.MessageContext;
import org.apache.synapse.core.axis2.Axis2MessageContext;
import org.apache.synapse.rest.AbstractHandler;
import org.apache.synapse.rest.RESTConstants;
import org.apache.synapse.transport.passthru.util.RelayUtils;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import java.io.IOException;
import java.io.StringReader;
import java.util.*;
Results
*APIM 2.1.0*
*Before executing Handler*
osgi> b 57
esb.poc_1.0.0_SNAPSHOT_1.0.0 [57]
Id=57, Status=ACTIVE Data
Root=/Users/tkhill/wso2am-2.1.0/repository/components/default/configuration/org.eclipse.osgi/bundles/57/data
"No registered services."
No services in use.
Exported packages
edu.wisc.services.esbpoc; version="0.0.0"[exported]
Imported packages
org.apache.synapse.rest; version="0.0.0"<synapse-core_2.1.7.wso2v10
[675]>
javax.xml.stream; version="1.0.1"<org.eclipse.osgi_3.9.1.v20130814-1242
[0]>
org.apache.axiom.om; version="1.2.11.wso2v11"<axiom_1.2.11.wso2v11 [13]>
org.apache.axis2.databinding.types;
version="1.6.1.wso2v20"<axis2_1.6.1.wso2v20 [14]>
org.apache.commons.logging;
version="1.2.0"<org.wso2.carbon.logging_4.4.11 [454]>
No fragment bundles
Named class space
esb.poc_1.0.0_SNAPSHOT; bundle-version="1.0.0"[provided]
No required bundles
*After executing Handler (but gets error -
org.apache.synapse.core.axis2.Axis2MessageContext cannot be found by
esb.poc_1.0.0_SNAPSHOT_1.0.0)*
osgi> b 57
esb.poc_1.0.0_SNAPSHOT_1.0.0 [57]
Id=57, Status=ACTIVE Data
Root=/Users/tkhill/wso2am-2.1.0/repository/components/default/configuration/org.eclipse.osgi/bundles/57/data
"No registered services."
No services in use.
Exported packages
edu.wisc.services.esbpoc; version="0.0.0"[exported]
Imported packages
org.apache.synapse.rest; version="0.0.0"<synapse-core_2.1.7.wso2v10
[675]>
javax.xml.stream; version="1.0.1"<org.eclipse.osgi_3.9.1.v20130814-1242
[0]>
org.apache.axiom.om; version="1.2.11.wso2v11"<axiom_1.2.11.wso2v11 [13]>
org.apache.axis2.databinding.types;
version="1.6.1.wso2v20"<axis2_1.6.1.wso2v20 [14]>
org.apache.commons.logging;
version="1.2.0"<org.wso2.carbon.logging_4.4.11 [454]>
org.apache.synapse; version="0.0.0"<synapse-core_2.1.7.wso2v10 [675]>
org.jaxen; version="1.1.1"<axiom_1.2.11.wso2v11 [13]>
org.apache.axiom.om.xpath;
version="1.2.11.wso2v11"<axiom_1.2.11.wso2v11 [13]>
org.apache.commons.lang; version="2.6.0"<commons-lang_2.6.0.wso2v1 [46]>
com.google.common.base; version="19.0.0"<com.google.guava_19.0.0 [32]>
No fragment bundles
Named class space
esb.poc_1.0.0_SNAPSHOT; bundle-version="1.0.0"[provided]
No required bundles
ESB 4.8.0
*Before executing Handler *
osgi> b 40
esb.poc_1.0.0_SNAPSHOT_1.0.0 [40]
Id=40, Status=ACTIVE Data
Root=/Users/tkhill/wso2esb-4.8.0/repository/components/default/configuration/org.eclipse.osgi/bundles/40/data
"No registered services."
No services in use.
Exported packages
edu.wisc.services.esbpoc; version="0.0.0"[exported]
Imported packages
org.apache.synapse.rest; version="0.0.0"<synapse-core_2.1.2.wso2v2
[526]>
org.apache.axis2.databinding.types;
version="1.6.1.wso2v10"<axis2_1.6.1.wso2v10 [15]>
javax.xml.stream;
version="1.0.1"<org.eclipse.osgi_3.8.1.v20120830-144521 [0]>
org.apache.axiom.om; version="1.2.11.wso2v4"<axiom_1.2.11.wso2v4 [14]>
org.apache.commons.logging;
version="1.1.1"<org.wso2.carbon.logging_4.2.0 [236]>
No fragment bundles
Named class space
esb.poc_1.0.0_SNAPSHOT; bundle-version="1.0.0"[provided]
No required bundles
*After executing Handler*
osgi> b 40
esb.poc_1.0.0_SNAPSHOT_1.0.0 [40]
Id=40, Status=ACTIVE Data
Root=/Users/tkhill/wso2esb-4.8.0/repository/components/default/configuration/org.eclipse.osgi/bundles/40/data
"No registered services."
No services in use.
Exported packages
edu.wisc.services.esbpoc; version="0.0.0"[exported]
Imported packages
org.apache.synapse.rest; version="0.0.0"<synapse-core_2.1.2.wso2v2
[526]>
org.apache.axis2.databinding.types;
version="1.6.1.wso2v10"<axis2_1.6.1.wso2v10 [15]>
javax.xml.stream;
version="1.0.1"<org.eclipse.osgi_3.8.1.v20120830-144521 [0]>
org.apache.axiom.om; version="1.2.11.wso2v4"<axiom_1.2.11.wso2v4 [14]>
org.apache.commons.logging;
version="1.1.1"<org.wso2.carbon.logging_4.2.0 [236]>
org.jaxen; version="1.1.1"<axiom_1.2.11.wso2v4 [14]>
org.apache.axiom.om.xpath; version="1.2.11.wso2v4"<axiom_1.2.11.wso2v4
[14]>
org.apache.synapse.core.axis2;
version="0.0.0"<synapse-core_2.1.2.wso2v2 [526]>
org.apache.axis2.context; version="1.6.1.wso2v10"<axis2_1.6.1.wso2v10
[15]>
org.apache.synapse.transport.passthru;
version="0.0.0"<synapse-nhttp-transport_2.1.2.wso2v2 [529]>
org.apache.commons.lang; version="2.6.0"<commons-lang_2.6.0.wso2v1 [31]>
com.google.common.base; version="12.0.0.wso2v1"<guava_12.0.0.wso2v1
[43]>
org.apache.synapse; version="0.0.0"<synapse-core_2.1.2.wso2v2 [526]>
org.apache.axiom.soap; version="1.2.11.wso2v4"<axiom_1.2.11.wso2v4 [14]>
org.apache.synapse.transport.passthru.util;
version="0.0.0"<synapse-nhttp-transport_2.1.2.wso2v2 [529]>
No fragment bundles
Named class space
esb.poc_1.0.0_SNAPSHOT; bundle-version="1.0.0"[provided]
No required bundles
On Tue, Sep 5, 2017 at 3:51 AM, Harsha Kumara <[email protected]> wrote:
> Hi Todd,
>
> Yes your observation is correct, Jars placed in lib converts to OSGi
> bundles and copied to the dropins folder. We might need to debug this
> further with OSGi console as I don't see any issue with the both versions.
> However, you can follow the resources in provided link to get rid of this.
> Let us know if you couldn't able to sort out this issue.
>
> Thanks,
> Harsha
>
> On Mon, Sep 4, 2017 at 11:08 PM, Todd Hill <[email protected]> wrote:
>
>> Thanks, Harsha, that might prove useful, but the bigger question to me is
>> why even bother with the bundle part ...
>>
>> When I worked on the 4.8.0 ESB version, I just had to put the .jar file
>> into <ESB-HOME>/repository/components/lib and the wso2 framework took
>> care of bundling it and moving it to the dropins directory (along with
>> whatever bundling needs are required).
>>
>> The APIM also seems to do the same thing (i.e., put it in the
>> <APIM_HOME>/repository/components/lib directory and, again, the
>> framework does the bundling and putting it in the dropins directory).
>>
>> There isn't much difference in the wso2-framework generated MANIFEST.MF
>> file between the two. And yet I get ClassNotFoundExceptions in the APIM
>> version.
>>
>> TO COMPARE:
>>
>> generated MANIFEST.MF - 4.8.0 version of ESB:
>> Manifest-Version: 1.0
>> Export-Package: edu.wisc.services.esbpoc
>> DynamicImport-Package: *
>> Bundle-ClassPath: .,esb.poc-1.0-SNAPSHOT.jar
>> Bundle-Version: 1.0.0
>> Bundle-Name: esb.poc_1.0_SNAPSHOT
>> Bundle-ManifestVersion: 2
>> Bundle-SymbolicName: esb.poc_1.0_SNAPSHOT
>>
>> generated MANIFEST.MF - 2.1.0 API Manager version:
>> Manifest-Version: 1.0
>> Bundle-SymbolicName: esb.poc_1.0.0_SNAPSHOT
>> Export-Package: edu.wisc.services.esbpoc
>> Bundle-Name: esb.poc_1.0.0_SNAPSHOT
>> Bundle-Version: 1.0.0
>> Bundle-ClassPath: .,esb.poc-1.0.0-SNAPSHOT.jar
>> Bundle-ManifestVersion: 2
>> DynamicImport-Package: *
>>
>> On Mon, Sep 4, 2017 at 12:12 PM Harsha Kumara <[email protected]> wrote:
>>
>>> Hi Todd,
>>>
>>> Resource in [1] may be a good reference for you.
>>>
>>> [1] https://github.com/R-Rajkumar/samples/blob/master/messag
>>> e-builder-handler/pom.xml
>>>
>>> Thanks,
>>> Harsha
>>>
>>> On Mon, Sep 4, 2017 at 10:16 PM, Todd Hill <[email protected]> wrote:
>>>
>>>> meant to send it to the DEV list too.
>>>>
>>>>
>>>> ---------- Forwarded message ---------
>>>> From: Todd Hill <[email protected]>
>>>> Date: Mon, Sep 4, 2017 at 11:38 AM
>>>> Subject: Re: [Dev] Custom API handler gets ClassNotFoundException
>>>> To: Harsha Kumara <[email protected]>
>>>>
>>>>
>>>> The profile I'm using is 'apim' (as opposed to the 'esb' profile). The
>>>> <packaging>bundle</packing> is comment out because I wasn't able to get
>>>> that working either.
>>>>
>>>>
>>>> On Mon, Sep 4, 2017 at 11:35 AM Harsha Kumara <[email protected]> wrote:
>>>>
>>>>> Hi Todd,
>>>>>
>>>>> Can you attach the pom.xml of your custom handler?
>>>>>
>>>>> Thanks,
>>>>> Harsha
>>>>>
>>>>> On Mon, Sep 4, 2017 at 9:58 PM, Todd Hill <[email protected]> wrote:
>>>>>
>>>>>> Sorry if this is not the right place to send questions about writing
>>>>>> a custom Handler for WSO2 API Manager 2.1.0, but I don't see any other
>>>>>> places listed.
>>>>>>
>>>>>> I have written a custom handler that worked well with WSO2 ESB 4.8.0.
>>>>>> We are migrating to using the API Manager v2.1.0, so I updated the maven
>>>>>> dependencies, but now after I put the jar into
>>>>>> <APIM_HOME>/repository/components/lib and restart the API Manager, I
>>>>>> get this when my Handler class is invoked:
>>>>>>
>>>>>> Caused by: java.lang.ClassNotFoundException:
>>>>>> org.apache.synapse.core.axis2.Axis2MessageContext cannot be found by
>>>>>> esb.poc_1.0_SNAPSHOT_1.0.0
>>>>>> at org.eclipse.osgi.internal.loader.BundleLoader.findClassInter
>>>>>> nal(BundleLoader.java:501)
>>>>>> at org.eclipse.osgi.internal.loader.BundleLoader.findClass(Bund
>>>>>> leLoader.java:421)
>>>>>> at org.eclipse.osgi.internal.loader.BundleLoader.findClass(Bund
>>>>>> leLoader.java:412)
>>>>>> at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.
>>>>>> loadClass(DefaultClassLoader.java:107)
>>>>>> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
>>>>>>
>>>>>>
>>>>>> Here is the method in the handler:
>>>>>>
>>>>>> private void processPayload(CaosDecisionMakingData
>>>>>> decisionMakingData, MessageContext mc){
>>>>>> try {
>>>>>> RelayUtils.buildMessage(((Axis2MessageContext)
>>>>>> mc).getAxis2MessageContext());
>>>>>> } catch (IOException e) {
>>>>>> throw new RuntimeException(e);
>>>>>> } catch (XMLStreamException e) {
>>>>>> throw new RuntimeException(e);
>>>>>> }
>>>>>> OMElement restPayload = mc.getEnvelope().getBody().getFirstElement();
>>>>>> if (restPayload != null) {
>>>>>> decisionMakingData.setPostBodyElement(restPayload);
>>>>>> }
>>>>>> }
>>>>>>
>>>>>> The line with RelayUtils containing the cast is where the problem is.
>>>>>>
>>>>>>
>>>>>> Thanks for any help or direction you can give.
>>>>>>
>>>>>> _______________________________________________
>>>>>> Dev mailing list
>>>>>> [email protected]
>>>>>> http://wso2.org/cgi-bin/mailman/listinfo/dev
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Harsha Kumara
>>>>> Software Engineer, WSO2 Inc.
>>>>> Mobile: +94775505618 <+94%2077%20550%205618>
>>>>> Blog:harshcreationz.blogspot.com
>>>>>
>>>>
>>>
>>>
>>> --
>>> Harsha Kumara
>>> Software Engineer, WSO2 Inc.
>>> Mobile: +94775505618 <+94%2077%20550%205618>
>>> Blog:harshcreationz.blogspot.com
>>>
>>
>
>
> --
> Harsha Kumara
> Software Engineer, WSO2 Inc.
> Mobile: +94775505618 <+94%2077%20550%205618>
> Blog:harshcreationz.blogspot.com
>
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