connectivity/com.nokia.carbide.remoteConnections/src/com/nokia/carbide/remoteconnections/internal/registry/Registry.java
Avoid loading TRK/TCF related connected services outside Win32 since there are no native libraries to support these yet.
/*
* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of the License "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
*
*/
package com.nokia.carbide.remoteconnections.internal.registry;
import com.nokia.carbide.remoteconnections.Messages;
import com.nokia.carbide.remoteconnections.RemoteConnectionsActivator;
import com.nokia.carbide.remoteconnections.interfaces.*;
import com.nokia.carbide.remoteconnections.ui.ClientServiceSiteUI;
import com.nokia.cpp.internal.api.utils.core.Check;
import com.nokia.cpp.internal.api.utils.core.ListenerList;
import com.nokia.cpp.internal.api.utils.core.Logging;
import org.eclipse.core.runtime.*;
import org.eclipse.jface.viewers.IFilter;
import java.io.*;
import java.text.MessageFormat;
import java.util.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* A registry of connection type and service extensions
*/
public class Registry implements IConnectionTypeProvider, IConnectionsManager {
private static final String FILTER_EXTENSION = RemoteConnectionsActivator.PLUGIN_ID + ".extensionFilter"; //$NON-NLS-1$
private static final String CONNECTION_TYPE_EXTENSION = RemoteConnectionsActivator.PLUGIN_ID + ".connectionType"; //$NON-NLS-1$
private static final String SERVICE_EXTENSION = RemoteConnectionsActivator.PLUGIN_ID + ".service"; //$NON-NLS-1$
private static final String CONNECTED_SERVICE_FACTORY_EXTENSION = RemoteConnectionsActivator.PLUGIN_ID + ".connectedServiceFactory"; //$NON-NLS-1$
private static final String CONNECTION_DATA_XML = "connectionData.xml"; //$NON-NLS-1$
private static final String NAME_SUFFIX_PATTERN = "(.+) \\((\\d+)\\)"; //$NON-NLS-1$
private static final String NAME_FMT = "{0} ({1})"; //$NON-NLS-1$
private static Registry instance;
private List<IExtensionFilter> extensionFilters;
private Map<String, IConnectionType> connectionTypeIdMap;
private ArrayList<IService> services;
private Map<IConnectionType, Collection<IService>> connectionTypeToServices;
private Map<IConnection, List<IConnectedService>> connectionToConnectedServices;
private ListenerList<IConnectionsManagerListener> listeners;
private List<IConnectedServiceFactory> connectedServiceFactories;
public static Registry instance() {
if (instance == null) {
instance = new Registry();
}
return instance;
}
private Registry() {
// private because is singleton
connectionToConnectedServices = new HashMap<IConnection, List<IConnectedService>>();
}
public void loadExtensions() {
loadExtensionFilters();
loadConnectionTypeExtensions();
loadServiceExtensions();
loadConnectedServiceFactoryExtensions();
mapConnectionTypeToServices();
}
private void loadConnectedServiceFactoryExtensions() {
connectedServiceFactories = new ArrayList<IConnectedServiceFactory>();
String loadError = Messages.getString("Registry.ConnectedServiceFactoryExtensionLoadError"); //$NON-NLS-1$
loadExtensions(CONNECTED_SERVICE_FACTORY_EXTENSION, loadError, connectedServiceFactories, null);
}
private void loadExtensionFilters() {
extensionFilters = new ArrayList<IExtensionFilter>();
String loadError = Messages.getString("Registry.FilterExtensionLoadError"); //$NON-NLS-1$
loadExtensions(FILTER_EXTENSION, loadError, extensionFilters, null);
}
private void loadConnectionTypeExtensions() {
List<IConnectionType> connectionTypeExtensions = new ArrayList<IConnectionType>();
String loadError = Messages.getString("Registry.ConnectionTypeExtensionLoadError"); //$NON-NLS-1$
loadExtensions(CONNECTION_TYPE_EXTENSION, loadError, connectionTypeExtensions, new IFilter() {
public boolean select(Object toTest) {
return acceptConnectionType(((IConnectionType) toTest).getIdentifier());
}
});
connectionTypeIdMap = new HashMap<String, IConnectionType>();
for (IConnectionType connectionType : connectionTypeExtensions) {
connectionTypeIdMap.put(connectionType.getIdentifier(), connectionType);
}
}
private boolean acceptConnectionType(String connectionTypeId) {
for (IExtensionFilter extensionFilter : extensionFilters) {
if (!extensionFilter.acceptConnectionType(connectionTypeId))
return false;
}
return true;
}
private void loadServiceExtensions() {
services = new ArrayList<IService>();
String loadError = Messages.getString("Registry.ServiceExtensionLoadError"); //$NON-NLS-1$
loadExtensions(SERVICE_EXTENSION, loadError, services, new IFilter() {
public boolean select(Object toTest) {
return acceptService(((IService) toTest).getIdentifier());
}
});
}
private boolean acceptService(String serviceId) {
for (IExtensionFilter extensionFilter : extensionFilters) {
if (!extensionFilter.acceptService(serviceId))
return false;
}
return true;
}
@SuppressWarnings("unchecked")
private <T> void loadExtensions(String extensionId, String loadError, Collection<T> extensionObjects, IFilter filter) {
IExtensionRegistry extensionRegistry = Platform.getExtensionRegistry();
IExtensionPoint extensionPoint = extensionRegistry.getExtensionPoint(extensionId);
IExtension[] extensions = extensionPoint.getExtensions();
for (int i = 0; i < extensions.length; i++) {
IExtension extension = extensions[i];
IConfigurationElement[] elements = extension.getConfigurationElements();
Check.checkContract(elements.length == 1);
IConfigurationElement element = elements[0];
try {
T extObject = (T) element.createExecutableExtension("class"); //$NON-NLS-1$
if (filter == null || filter.select(extObject))
extensionObjects.add(extObject);
}
catch (CoreException e) {
if (loadError != null)
log(loadError, e);
}
}
}
private void mapConnectionTypeToServices() {
connectionTypeToServices = new HashMap<IConnectionType, Collection<IService>>();
Set<String> connectionTypeIds = connectionTypeIdMap.keySet();
for (IService service : services) {
Collection<String> compatibleConnectionTypeIds = getCompatibleConnectionTypeIds(service);
String serviceId = service.getIdentifier();
for (String connectionTypeId : compatibleConnectionTypeIds) {
if (connectionTypeIds.contains(connectionTypeId)) {
IConnectionType connectionType = connectionTypeIdMap.get(connectionTypeId);
if (!connectionTypeToServices.containsKey(connectionType)) {
connectionTypeToServices.put(connectionType,
new TreeSet<IService>(new Comparator<IService>() {
public int compare(IService o1, IService o2) {
return o1.getDisplayName().compareToIgnoreCase(o2.getDisplayName());
}
}));
}
Set<IService> servicesForConnectionType =
(Set<IService>) connectionTypeToServices.get(connectionType);
if (acceptConnectedService(serviceId, connectionTypeId))
servicesForConnectionType.add(service);
}
}
}
}
public Collection<String> getCompatibleConnectionTypeIds(IService service) {
Collection<String> compatibleConnectionTypeIds = new HashSet<String>();
for (IConnectedServiceFactory factory : connectedServiceFactories) {
compatibleConnectionTypeIds.addAll(factory.getCompatibleConnectionTypeIds(service));
}
return compatibleConnectionTypeIds;
}
private boolean acceptConnectedService(String serviceId, String connectionTypeId) {
boolean accept = true;
for (IExtensionFilter extensionFilter : extensionFilters) {
if (!extensionFilter.acceptConnectedService(connectionTypeId, serviceId)) {
accept = false;
break;
}
}
return accept;
}
private void log(String errorStr, Throwable t) {
RemoteConnectionsActivator p = RemoteConnectionsActivator.getDefault();
String error = errorStr;
if (t != null) {
error += " : " + t.getLocalizedMessage(); //$NON-NLS-1$
}
Logging.log(p, Logging.newStatus(p, IStatus.ERROR, error));
if (t instanceof CoreException)
Logging.log(p, ((CoreException) t).getStatus());
}
/* (non-Javadoc)
* @see com.nokia.carbide.remoteconnections.registry.IConnectionStore#loadConnections()
*/
public void loadConnections() {
File connectionStorageFile = getConnectionStorageFile();
if (!connectionStorageFile.exists())
return;
connectionToConnectedServices = new HashMap<IConnection, List<IConnectedService>>();
try {
List<IConnection> connections = Reader.readFromXML(this, new FileInputStream(connectionStorageFile));
for (IConnection connection : connections) {
List<IConnectedService> connectedServices = createConnectedServicesForConnection(connection);
connectionToConnectedServices.put(connection, connectedServices);
}
fireConnectionStoreChanged();
}
catch (Exception e) {
log(Messages.getString("Registry.ConnectionLoadError"), e); //$NON-NLS-1$
}
}
private List<IConnectedService> createConnectedServicesForConnection(IConnection connection) {
List<IConnectedService> connectedServices = new ArrayList<IConnectedService>();
for (IService service : getCompatibleServices(connection.getConnectionType())) {
IConnectedService connectedService = createConnectedService(service, connection);
if (connectedService != null)
connectedServices.add(connectedService);
}
return connectedServices;
}
public IConnectedService createConnectedService(IService service, IConnection connection) {
// use first created connected service returned from a factory
for (IConnectedServiceFactory factory : connectedServiceFactories) {
IConnectedService connectedService = factory.createConnectedService(service, connection);
if (connectedService != null)
return connectedService;
}
log(MessageFormat.format(
Messages.getString("Registry.ConnectedServiceFactoryError"), //$NON-NLS-1$
service.getDisplayName(), connection.getConnectionType().getDisplayName()), null);
return null;
}
/* (non-Javadoc)
* @see com.nokia.carbide.remoteconnections.registry.IConnectionStore#storeConnections()
*/
public void storeConnections() {
try {
OutputStream os = new FileOutputStream(getConnectionStorageFile());
Writer.writeToXML(os, connectionToConnectedServices.keySet());
}
catch (Exception e) {
log(Messages.getString("Registry.ConnectionStoreError"), e); //$NON-NLS-1$
}
}
/* (non-Javadoc)
* @see com.nokia.carbide.remoteconnections.registry.IConnectionStore#addConnectionStoreChangedListener(com.nokia.carbide.remoteconnections.registry.Registry.IConnectionStoreChangedListener)
*/
public void addConnectionStoreChangedListener(IConnectionsManagerListener listener) {
if (listeners == null)
listeners = new ListenerList<IConnectionsManagerListener>();
listeners.add(listener);
}
public void removeConnectionStoreChangedListener(IConnectionsManagerListener listener) {
if (listeners != null)
listeners.remove(listener);
}
private void fireConnectionStoreChanged() {
if (listeners == null)
return;
for (IConnectionsManagerListener listener : listeners) {
listener.connectionStoreChanged();
}
}
/* (non-Javadoc)
* @see com.nokia.carbide.remoteconnections.registry.IConnectionTypeProvider#getConnectionType(java.lang.String)
*/
public IConnectionType getConnectionType(String identifier) {
Check.checkContract(connectionTypeIdMap != null);
return connectionTypeIdMap.get(identifier);
}
public Collection<IConnectionType> getConnectionTypes() {
return new ArrayList<IConnectionType>(connectionTypeIdMap.values());
}
public Collection<IService> getCompatibleServices(IConnectionType connectionType) {
Check.checkContract(connectionTypeToServices != null);
Collection<IService> services = connectionTypeToServices.get(connectionType);
if (services != null)
return new ArrayList<IService>(services);
return Collections.emptyList();
}
/* (non-Javadoc)
* @see com.nokia.carbide.remoteconnections.registry.IConnectionStore#addConnection(com.nokia.carbide.remoteconnections.extensions.IConnection)
*/
public void addConnection(IConnection connection) {
ensureUniqueId(connection);
ensureUniqueName(connection);
List<IConnectedService> connectedServices = createConnectedServicesForConnection(connection);
connectionToConnectedServices.put(connection, connectedServices);
fireConnectionStoreChanged();
}
private void ensureUniqueId(IConnection connection) {
String id = connection.getIdentifier();
if (id == null || id.length() == 0 || connectionIdInUse(id))
connection.setIdentifier(getUniqueConnectionId());
}
public String getUniqueConnectionId() {
return UUID.randomUUID().toString();
}
private boolean connectionIdInUse(String id) {
boolean used = false;
for (IConnection c : connectionToConnectedServices.keySet()) {
if (c.getIdentifier().equals(id)) {
used = true;
break;
}
}
return used;
}
private void ensureUniqueName(IConnection connection) {
String name = connection.getDisplayName();
if (name == null)
connection.setDisplayName(connection.getIdentifier());
if (connectionNameInUse(name)) {
// check if already has the suffix " (num)"
Pattern pattern = Pattern.compile(NAME_SUFFIX_PATTERN);
Matcher matcher = pattern.matcher(name);
boolean hasSuffix = matcher.matches();
String namePart;
int number;
if (hasSuffix) { // extract the name part and the number to increment
namePart = matcher.group(1);
String numberPart = matcher.group(2);
number = Integer.parseInt(numberPart); // all digits, so should not throw
number = (number <= 1) ? 2 : number++;
}
else { // just use the name and add the number starting with 2
namePart = name;
number = 2;
}
while (true) {
String newName = MessageFormat.format(NAME_FMT, new Object[] { namePart, number++ });
if (!connectionNameInUse(newName)) {
connection.setDisplayName(newName);
break;
}
}
}
}
public boolean connectionNameInUse(String name) {
boolean used = false;
for (IConnection c : connectionToConnectedServices.keySet()) {
if (c.getDisplayName().equals(name)) {
used = true;
break;
}
}
return used;
}
/* (non-Javadoc)
* @see com.nokia.carbide.remoteconnections.registry.IConnectionStore#removeConnection(com.nokia.carbide.remoteconnections.extensions.IConnection)
*/
public void removeConnection(IConnection connection) {
disposeConnection(connection);
connectionToConnectedServices.remove(connection);
fireConnectionStoreChanged();
}
private void disposeConnection(IConnection connection) {
List<IConnectedService> connectedServices = connectionToConnectedServices.get(connection);
for (IConnectedService connectedService : connectedServices) {
connectedService.dispose();
}
connection.dispose();
}
/* (non-Javadoc)
* @see com.nokia.carbide.remoteconnections.registry.IConnectionStore#getConnections()
*/
public Collection<IConnection> getConnections() {
return new ArrayList<IConnection>(connectionToConnectedServices.keySet());
}
public Collection<IConnectedService> getConnectedServices(IConnection connection) {
List<IConnectedService> connectedServices = connectionToConnectedServices.get(connection);
if (connectedServices != null)
return new ArrayList<IConnectedService>(connectedServices);
return null;
}
private File getConnectionStorageFile() {
IPath path = RemoteConnectionsActivator.getDefault().getStateLocation().append(CONNECTION_DATA_XML);
return path.toFile();
}
public void disposeConnections() {
for (IConnection connection : connectionToConnectedServices.keySet()) {
disposeConnection(connection);
}
connectionToConnectedServices.clear();
}
private void fireDisplayChanged() {
if (listeners == null)
return;
for (IConnectionsManagerListener listener : listeners) {
listener.displayChanged();
}
}
public void updateDisplays() {
fireDisplayChanged();
}
public IClientServiceSiteUI getClientSiteUI(IService service) {
return new ClientServiceSiteUI(service);
}
public Collection<IService> getServices() {
return new ArrayList<IService>(services);
}
public IService findServiceByID(String id) {
for (IService service : services) {
if (service.getIdentifier().equals(id))
return service;
}
return null;
}
}