| Info | ||
|---|---|---|
| ||
Web Service is one of many well-defined extension points supported by the WSO2 Governance Registry. Read more on Supported Extension Points for a complete list of extension points supported by WSO2 Governance Registry. |
...
| Code Block | ||
|---|---|---|
| ||
<dependency>
<groupId>org.wso2.carbon</groupId>
<artifactId>org.wso2.carbon.governance.api</artifactId>
<version>4.02.1<0</version>
</dependency> |
3. Add the following plugin to your POM file:
...
| Info |
|---|
The Fragment-Host Bundle Manifest Header declares this sample bundle to be a Fragment of the Registry Kernel. This would mean that the sample handler bundle will become an extension to the Registry Kernel. However, bundles containing Since the Fragment now also being an extension to the Registry Kernel, the combination of this bundle and the Registry Kernel (plus any other fragments) should start up before the Apache Axis2 runtime. But, due to the bundle not getting deployed until the Apache Axis2 runtime has been initialized, it will create a deadlock situation. Due to this reason, we have to get rid of the Fragment-Host header. |
5. Add the following content to Create a file named services.xml in GREG_HOME/samples/handler/src/resources/META-INFINF and add the following content:
| Code Block | ||
|---|---|---|
| ||
<serviceGroup>
<service name="EndpointLookupService" scope="transportsession">
<transports>
<transport>http</transport>
</transports>
<parameter name="ServiceClass" locked="false">
org.wso2.carbon.registry.samples.services.EndpointLookupService
</parameter>
</service>
</serviceGroup> |
...
| Code Block | ||
|---|---|---|
| ||
package org.wso2.carbon.registry.samples.services;
import org.wso2.carbon.governance.api.exception.GovernanceException;
import org.wso2.carbon.governance.api.services.ServiceFilter;
import org.wso2.carbon.governance.api.services.ServiceManager;
import org.wso2.carbon.governance.api.services.dataobjects.Service;
import org.wso2.carbon.registry.core.Registry;
import org.wso2.carbon.registry.core.exceptions.RegistryException;
import java.util.LinkedList;
import java.util.List;
public class EndpointLookupService {
private Registry governanceRegistry;
public EndpointLookupService() {
try {
governanceRegistry = EndpointLookupServiceComponent.getRegistryService()
.getGovernanceSystemRegistry();
} catch (RegistryException e) {
e.printStackTrace();
}
}
public String[] getEndpoints(final String serviceName, final String serviceNamespace,
final String version, final String environment)
throws GovernanceException, RegistryException {
ServiceManager manager = new ServiceManager(governanceRegistry);
Service[] services = manager.findServices(new ServiceFilter() {
public boolean matches(Service service) throws GovernanceException {
return serviceName.equals(service.getQName().getLocalPart()) &&
(serviceNamespace == null || serviceNamespace.length() == 0 ||
serviceNamespace.equals(service.getQName().getNamespaceURI())) &&
(version == null || version.length() == 0 ||
version.equals(service.getAttribute("overview_version")));
}
});
if (services != null && services.length > 0) {
List<String> endpoints = new LinkedList<String>();
for (Service service : services) {
String[] entries = service.getAttributes("endpoints_entry");
if (entries != null && entries.length > 0) {
for (String entry : entries) {
int idx = entry.indexOf(":");
if (entry.substring(0, idx).equals(environment)) {
endpoints.add(entry.substring(idx + 1));
}
}
}
}
return endpoints.toArray(new String[endpoints.size()]);
}
return new String[0];
}
} |
...
9. Copy the GREG_HOME/ samples/handler/src/target/org.wso2.carbon.registry.samples.handler-4.6.0.jar into GREG_HOME/repository/components/dropins.
...
4. Fill in the following payload as the request:. At least one endpoint must exist for the Dev environment in order to receive a response.
| Code Block | ||
|---|---|---|
| ||
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:ser="http://services.samples.registry.carbon.wso2.org">
<soap:Header/>
<soap:Body>
<ser:getEndpoints>
<ser:serviceName>SimpleStockQuoteService</ser:serviceName>
<ser:environment>Dev</ser:environment>
</ser:getEndpoints>
</soap:Body>
</soap:Envelope> |
...