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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
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 <code>XBridgeFactory</code> Interface.
* It wrapps the <code>UnoRuntime#getBridgeByName</code>method and delivers a
* XBridge component.
* <p>
* This component is only usable for remote bridges.
* <p>
* @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 <code>JavaLoader</code> 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 <code>JavaLoader</code>
* <p>
* @return returns a <code>XSingleServiceFactory</code> 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 <code>sName</code>.
* <p>
* @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 e) {
com.sun.star.lang.IllegalArgumentException e2 =
new com.sun.star.lang.IllegalArgumentException(e.getMessage());
e2.initCause(e);
throw e2;
}
if(DEBUG) System.err.println("##### " + getClass().getName() + ".createBridge:" + sName + " " + sProtocol + " " + aConnection + " " + anInstanceProvider + " " + xBridge);
return xBridge;
}
/**
* Gets a remote bridge which must already exist.
* <p>
* @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
* <p>
* @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;
}
}
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