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/*******************************************************************************
* Copyright (c) 2014, 2019 Raymond Augé and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Raymond Augé <raymond.auge@liferay.com> - Bug 436698
******************************************************************************/
package org.eclipse.equinox.http.servlet.internal.customizer;
import java.util.concurrent.atomic.AtomicReference;
import javax.servlet.Servlet;
import org.eclipse.equinox.http.servlet.internal.HttpServiceRuntimeImpl;
import org.eclipse.equinox.http.servlet.internal.context.ContextController;
import org.eclipse.equinox.http.servlet.internal.error.HttpWhiteboardFailureException;
import org.eclipse.equinox.http.servlet.internal.registration.ServletRegistration;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.service.http.runtime.dto.DTOConstants;
/**
* @author Raymond Augé
*/
public class ContextServletTrackerCustomizer
extends RegistrationServiceTrackerCustomizer<Servlet, AtomicReference<ServletRegistration>> {
public ContextServletTrackerCustomizer(
BundleContext bundleContext, HttpServiceRuntimeImpl httpServiceRuntime,
ContextController contextController) {
super(bundleContext, httpServiceRuntime);
this.contextController = contextController;
}
@Override
public AtomicReference<ServletRegistration> addingService(
ServiceReference<Servlet> serviceReference) {
AtomicReference<ServletRegistration> result = new AtomicReference<ServletRegistration>();
if (!httpServiceRuntime.matches(serviceReference)) {
return result;
}
try {
if (!contextController.matches(serviceReference)) {
// Only the default context will perform the "does anyone match" checks.
if (httpServiceRuntime.isDefaultContext(contextController) &&
!httpServiceRuntime.matchesAnyContext(serviceReference)) {
throw new HttpWhiteboardFailureException(
"Doesn't match any contexts. " + serviceReference, DTOConstants.FAILURE_REASON_NO_SERVLET_CONTEXT_MATCHING); //$NON-NLS-1$
}
return result;
}
httpServiceRuntime.removeFailedServletDTO(serviceReference);
result.set(contextController.addServletRegistration(serviceReference));
}
catch (HttpWhiteboardFailureException hwfe) {
httpServiceRuntime.log(hwfe.getMessage(), hwfe);
contextController.recordFailedServletDTO(serviceReference, null, hwfe.getFailureReason());
}
catch (Throwable t) {
httpServiceRuntime.log(t.getMessage(), t);
contextController.recordFailedServletDTO(serviceReference, null, DTOConstants.FAILURE_REASON_EXCEPTION_ON_INIT);
}
return result;
}
@Override
public void modifiedService(
ServiceReference<Servlet> serviceReference,
AtomicReference<ServletRegistration> servletReference) {
removedService(serviceReference, servletReference);
AtomicReference<ServletRegistration> added = addingService(serviceReference);
servletReference.set(added.get());
}
@Override
public void removedService(
ServiceReference<Servlet> serviceReference,
AtomicReference<ServletRegistration> servletReference) {
ServletRegistration registration = servletReference.get();
if (registration != null) {
// destroy will unget the service object we were using
registration.destroy();
}
contextController.getHttpServiceRuntime().removeFailedServletDTO(serviceReference);
contextController.getHttpServiceRuntime().removeFailedErrorPageDTO(serviceReference);
}
private ContextController contextController;
}
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