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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.felix.dm.runtime;
import java.util.Dictionary;
import java.util.List;
import org.apache.felix.dm.Component;
import org.apache.felix.dm.DependencyManager;
import org.osgi.framework.Bundle;
/**
* Builded called when the JSON parser find an adapter service descriptor.
*
* @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a>
*/
public class AdapterServiceBuilder extends AbstractBuilder
{
/** The type attribute specified in the JSON descriptor */
private final static String TYPE = "AdapterService";
@Override
public String getType()
{
return TYPE;
}
@Override
public void build(MetaData srvMeta, List<MetaData> depsMeta, Bundle b, DependencyManager dm)
throws Exception
{
Class<?> adapterImplClass = b.loadClass(srvMeta.getString(Params.impl));
String[] provides = srvMeta.getStrings(Params.provides, null);
Dictionary<String, Object> adapterProperties = srvMeta.getDictionary(Params.properties, null);
Class<?> adapteeService = b.loadClass(srvMeta.getString(Params.adapteeService));
String adapteeFilter = srvMeta.getString(Params.adapteeFilter, null);
String field = srvMeta.getString(Params.field, null);
String added = srvMeta.getString(Params.added, null);
String changed = srvMeta.getString(Params.changed, null);
String removed = srvMeta.getString(Params.removed, null);
String swap = srvMeta.getString(Params.swap, null);
boolean propagate = "true".equals(srvMeta.getString(Params.propagate, "true"));
if (field != null && (added != null || changed != null || removed != null || swap != null))
{
throw new IllegalArgumentException("autoconfig field " + field + " can't be defined with both added/changed/removed/swap calllbacks");
}
Component c;
if (field != null)
{
c = dm.createAdapterService(adapteeService, adapteeFilter, field, null, null, null, null, null, propagate);
}
else
{
if (added != null || changed != null || removed != null || swap != null)
{
c = dm.createAdapterService(adapteeService, adapteeFilter, null, null, added, changed, removed, swap, propagate);
}
else
{
c = dm.createAdapterService(adapteeService, adapteeFilter, null, null, null, null, null, null, propagate);
}
}
setCommonServiceParams(c, srvMeta);
c.setInterface(provides, adapterProperties);
String factoryMethod = srvMeta.getString(Params.factoryMethod, null);
if (factoryMethod == null)
{
c.setImplementation(adapterImplClass);
}
else
{
c.setFactory(adapterImplClass, factoryMethod);
}
c.setComposition(srvMeta.getString(Params.composition, null));
ServiceLifecycleHandler lfcleHandler = new ServiceLifecycleHandler(c, b, dm, srvMeta, depsMeta);
// The dependencies will be plugged by our lifecycle handler.
c.setCallbacks(lfcleHandler, "init", "start", "stop", "destroy");
// Adds dependencies (except named dependencies, which are managed by the lifecycle handler).
addUnamedDependencies(b, dm, c, srvMeta, depsMeta);
dm.add(c);
}
}