/*******************************************************************************
* Copyright (c) 2010-2011 Composent, Inc. and others. All rights reserved. This
* program and the accompanying materials are made available under the terms of
* the Eclipse Public License v1.0 which accompanies this distribution, and is
* available at http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Composent, Inc. - initial API and implementation
******************************************************************************/
package org.eclipse.ecf.osgi.services.remoteserviceadmin;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.Map;
import org.eclipse.ecf.core.IContainer;
import org.eclipse.ecf.remoteservice.IRemoteServiceContainer;
import org.osgi.framework.ServiceReference;
/**
* Default implementation of {@link IHostContainerSelector} service.
*
*/
public class HostContainerSelector extends AbstractHostContainerSelector
implements IHostContainerSelector {
private static final boolean reuseExistingContainers = new Boolean(
System.getProperty(
"org.eclipse.ecf.osgi.services.remoteserviceadmin.HostContainerSelector.reuseExistingContainers", //$NON-NLS-1$
"true")).booleanValue(); //$NON-NLS-1$
private boolean autoCreateContainer = false;
public HostContainerSelector(String[] defaultConfigTypes,
boolean autoCreateContainer) {
super(defaultConfigTypes);
this.autoCreateContainer = autoCreateContainer;
}
// Adding synchronized to make the host container finding
// thread safe to deal with bug
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=331836
/**
* @see org.eclipse.ecf.osgi.services.remoteserviceadmin.IHostContainerSelector#selectHostContainers(org.osgi.framework.ServiceReference,
* java.util.Map, java.lang.String[], java.lang.String[],
* java.lang.String[])
* @since 2.0
*/
public synchronized IRemoteServiceContainer[] selectHostContainers(
ServiceReference serviceReference,
Map<String, Object> overridingProperties,
String[] serviceExportedInterfaces,
String[] serviceExportedConfigs, String[] serviceIntents)
throws SelectContainerException {
// Find previously created containers that match the given
// serviceExportedConfigs and serviceIntents
Collection rsContainers = (reuseExistingContainers) ? selectExistingHostContainers(
serviceReference, overridingProperties,
serviceExportedInterfaces, serviceExportedConfigs,
serviceIntents) : Collections.EMPTY_LIST;
if (rsContainers.size() == 0 && autoCreateContainer) {
// If no existing containers are found we'll go through
// finding/creating/configuring/connecting
rsContainers = createAndConfigureHostContainers(serviceReference,
overridingProperties, serviceExportedInterfaces,
serviceExportedConfigs, serviceIntents);
// if SERVICE_EXPORTED_CONTAINER_CONNECT_TARGET service property is
// specified, then
// connect the host container(s)
Object target = overridingProperties
.get(RemoteConstants.ENDPOINT_CONNECTTARGET_ID);
if (target != null) {
for (Iterator i = rsContainers.iterator(); i.hasNext();) {
IContainer container = ((IRemoteServiceContainer) i.next())
.getContainer();
try {
connectHostContainer(serviceReference,
overridingProperties, container, target);
} catch (Exception e) {
logException("doConnectContainer failure containerID=" //$NON-NLS-1$
+ container.getID() + " target=" + target, e); //$NON-NLS-1$
}
}
}
}
// return result
return (IRemoteServiceContainer[]) rsContainers
.toArray(new IRemoteServiceContainer[] {});
}
public void close() {
}
}