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package com.sun.star.comp.bridgefactory;
import java.math.BigInteger;
import java.util.Vector;
import com.sun.star.bridge.BridgeExistsException;
import com.sun.star.bridge.XBridge;
import com.sun.star.bridge.XBridgeFactory;
import com.sun.star.bridge.XInstanceProvider;
import com.sun.star.comp.loader.FactoryHelper;
import com.sun.star.connection.XConnection;
import com.sun.star.lang.XMultiServiceFactory;
import com.sun.star.lang.XSingleServiceFactory;
import com.sun.star.registry.XRegistryKey;
import com.sun.star.uno.IBridge;
import com.sun.star.uno.UnoRuntime;
/**
* The BridgeFactory class implements the XBridgeFactory
Interface.
* It wrapps the UnoRuntime#getBridgeByName
method and delivers a
* XBridge component.
*
* This component is only usable for remote bridges. *
* @version $Revision: 1.11 $ $ $Date: 2008-04-11 11:07:51 $
* @author Kay Ramme
* @see com.sun.star.uno.UnoRuntime
* @since UDK1.0
*/
public class BridgeFactory implements XBridgeFactory/*, XEventListener*/ {
static private final boolean DEBUG = false;
/**
* The name of the service, the JavaLoader
acceses this through reflection.
*/
public final static String __serviceName = "com.sun.star.bridge.BridgeFactory";
/**
* Gives a factory for creating the service.
* This method is called by the JavaLoader
*
* @return returns a XSingleServiceFactory
for creating the component
* @param implName the name of the implementation for which a service is desired
* @param multiFactory the service manager to be uses if needed
* @param regKey the registryKey
* @see com.sun.star.comp.loader.JavaLoader
*/
public static XSingleServiceFactory __getServiceFactory(String implName,
XMultiServiceFactory multiFactory,
XRegistryKey regKey)
{
XSingleServiceFactory xSingleServiceFactory = null;
if (implName.equals(BridgeFactory.class.getName()) )
xSingleServiceFactory = FactoryHelper.getServiceFactory(BridgeFactory.class,
multiFactory,
regKey);
return xSingleServiceFactory;
}
/**
* Creates a remote bridge and memorizes it under sName
.
*
* @return the bridge * @param sName the name to memorize the bridge * @param sProtocol the protocol the bridge should use * @param anInstanceProvider the instance provider * @see com.sun.star.bridge.XBridgeFactory */ public XBridge createBridge(String sName, String sProtocol, XConnection aConnection, XInstanceProvider anInstanceProvider) throws BridgeExistsException, com.sun.star.lang.IllegalArgumentException, com.sun.star.uno.RuntimeException { boolean hasName = sName.length() != 0; Object context = hasName ? sName : new UniqueToken(); // UnoRuntime.getBridgeByName internally uses context.toString() to // distinguish bridges, so the result of // new UniqueToken().toString() might clash with an explicit // sName.toString(), but the UnoRuntime bridge management is // obsolete anyway and should be removed // do not create a new bridge, if one already exists if (hasName) { IBridge iBridges[] = UnoRuntime.getBridges(); for(int i = 0; i < iBridges.length; ++ i) { XBridge xBridge = UnoRuntime.queryInterface(XBridge.class, iBridges[i]); if(xBridge != null) { if(xBridge.getName().equals(sName)) throw new BridgeExistsException(sName + " already exists"); } } } XBridge xBridge; try { IBridge iBridge = UnoRuntime.getBridgeByName("java", context, "remote", context, hasName ? new Object[]{sProtocol, aConnection, anInstanceProvider, sName} : new Object[]{sProtocol, aConnection, anInstanceProvider}); xBridge = UnoRuntime.queryInterface(XBridge.class, iBridge); } catch(Exception exception) { throw new com.sun.star.lang.IllegalArgumentException(exception.getMessage()); } if(DEBUG) System.err.println("##### " + getClass().getName() + ".createBridge:" + sName + " " + sProtocol + " " + aConnection + " " + anInstanceProvider + " " + xBridge); return xBridge; } /** * Gets a remote bridge which must already exist. *
* @return the bridge * @param sName the name of the bridge * @see com.sun.star.bridge.XBridgeFactory */ public XBridge getBridge(String sName) throws com.sun.star.uno.RuntimeException { XBridge xBridge = null; IBridge iBridges[] = UnoRuntime.getBridges(); for(int i = 0; i < iBridges.length; ++ i) { xBridge = UnoRuntime.queryInterface(XBridge.class, iBridges[i]); if(xBridge != null) { if(xBridge.getName().equals(sName)) break; else xBridge = null; } } if(DEBUG) System.err.println("##### " + getClass().getName() + ".getBridge:" + sName + " " + xBridge); return xBridge; } /** * Gives all created bridges *
* @return the bridges * @see com.sun.star.bridge.XBridgeFactory */ public synchronized XBridge[] getExistingBridges() throws com.sun.star.uno.RuntimeException { Vector vector = new Vector(); IBridge iBridges[] = UnoRuntime.getBridges(); for(int i = 0; i < iBridges.length; ++ i) { XBridge xBridge = UnoRuntime.queryInterface(XBridge.class, iBridges[i]); if(xBridge != null) vector.addElement(xBridge); } XBridge xBridges[]= new XBridge[vector.size()]; for(int i = 0; i < vector.size(); ++ i) xBridges[i] = (XBridge)vector.elementAt(i); return xBridges; } private static final class UniqueToken { public UniqueToken() { synchronized (UniqueToken.class) { token = counter.toString(); counter = counter.add(BigInteger.ONE); } } public String toString() { return token; } private final String token; private static BigInteger counter = BigInteger.ZERO; } }