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/*-
* ============LICENSE_START=======================================================
* ONAP : CCSDK
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights
* reserved.
* ================================================================================
* Licensed 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.
* ============LICENSE_END=========================================================
*/
package org.onap.ccsdk.sli.core.sli.provider;
import java.io.File;
import java.io.FileInputStream;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.LinkedList;
import java.util.Map;
import java.util.Properties;
import org.onap.ccsdk.sli.core.sli.ConfigurationException;
import org.onap.ccsdk.sli.core.sli.SvcLogicAdaptor;
import org.onap.ccsdk.sli.core.sli.SvcLogicException;
import org.onap.ccsdk.sli.core.sli.SvcLogicStore;
import org.onap.ccsdk.sli.core.sli.SvcLogicStoreFactory;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.framework.ServiceRegistration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class SvcLogicActivator implements BundleActivator {
private static final String SVCLOGIC_PROP_VAR = "SDNC_SLI_PROPERTIES";
private static final String SDNC_CONFIG_DIR = "SDNC_CONFIG_DIR";
private static final Map<String, SvcLogicNodeExecutor> BUILTIN_NODES = new HashMap<String, SvcLogicNodeExecutor>() {
{
put("block", new BlockNodeExecutor());
put("call", new CallNodeExecutor());
put("configure", new ConfigureNodeExecutor());
put("delete", new DeleteNodeExecutor());
put("execute", new ExecuteNodeExecutor());
put("exists", new ExistsNodeExecutor());
put("for", new ForNodeExecutor());
put("get-resource", new GetResourceNodeExecutor());
put("is-available", new IsAvailableNodeExecutor());
put("notify", new NotifyNodeExecutor());
put("record", new RecordNodeExecutor());
put("release", new ReleaseNodeExecutor());
put("reserve", new ReserveNodeExecutor());
put("return", new ReturnNodeExecutor());
put("save", new SaveNodeExecutor());
put("set", new SetNodeExecutor());
put("switch", new SwitchNodeExecutor());
put("update", new UpdateNodeExecutor());
put("break", new BreakNodeExecutor());
}
};
private static final Logger LOG = LoggerFactory.getLogger(SvcLogicActivator.class);
private static LinkedList<ServiceRegistration> registrations = new LinkedList<>();
private static HashMap<String, SvcLogicAdaptor> adaptorMap;
private static Properties props;
private static BundleContext bundleCtx;
private static SvcLogicService svcLogicServiceImpl;
@Override
public void start(BundleContext ctx) throws Exception {
LOG.info("Activating SLI");
synchronized (SvcLogicActivator.class) {
bundleCtx = ctx;
props = new Properties();
}
// Read properties
String propPath = System.getenv(SVCLOGIC_PROP_VAR);
if (propPath == null) {
String propDir = System.getenv(SDNC_CONFIG_DIR);
if (propDir == null) {
propDir = "/opt/sdnc/data/properties";
}
propPath = propDir + "/svclogic.properties";
LOG.warn("Environment variable {} unset - defaulting to {}", SVCLOGIC_PROP_VAR, propPath);
}
File propFile = new File(propPath);
if (!propFile.exists()) {
throw new ConfigurationException("Missing configuration properties file : " + propFile);
}
try {
props.load(new FileInputStream(propFile));
} catch (Exception e) {
throw new ConfigurationException("Could not load properties file " + propPath, e);
}
synchronized (SvcLogicActivator.class) {
if (registrations == null) {
registrations = new LinkedList<>();
}
// Advertise SvcLogicService
svcLogicServiceImpl = new SvcLogicServiceImpl();
}
LOG.info("SLI: Registering service {} in bundle {}", SvcLogicService.NAME, ctx.getBundle().getSymbolicName());
ServiceRegistration reg = ctx.registerService(SvcLogicService.NAME, svcLogicServiceImpl, null);
registrations.add(reg);
// Initialize SvcLogicStore
try {
SvcLogicStore store = getStore();
registerNodeTypes(store);
} catch (ConfigurationException e) {
LOG.warn("Could not initialize SvcLogicScore", e);
}
LOG.info("SLI - done registering services");
}
@Override
public void stop(BundleContext ctx) throws Exception {
if (registrations != null) {
for (ServiceRegistration reg : registrations) {
ServiceReference regRef = reg.getReference();
/* Don't bother to remove node types from table
String nodeType = (String) regRef.getProperty("nodeType");
if (nodeType != null) {
LOG.info("SLI - unregistering node type " + nodeType);
store.unregisterNodeType(nodeType);
}
*/
reg.unregister();
}
synchronized (SvcLogicActivator.class) {
registrations = null;
}
}
}
public static SvcLogicStore getStore() throws SvcLogicException {
// Create and initialize SvcLogicStore object - used to access
// saved service logic.
SvcLogicStore store;
try {
store = SvcLogicStoreFactory.getSvcLogicStore(props);
} catch (Exception e) {
throw new ConfigurationException("Could not get service logic store", e);
}
try {
store.init(props);
} catch (Exception e) {
throw new ConfigurationException("Could not get service logic store", e);
}
return(store);
}
private static void registerNodeTypes(SvcLogicStore store) throws SvcLogicException {
if (store == null) {
return;
}
// Advertise built-in node executors
LOG.info("SLI : Registering built-in node executors");
Hashtable propTable = new Hashtable();
for (String nodeType : BUILTIN_NODES.keySet()) {
LOG.info("SLI - registering node type {}", nodeType);
propTable.clear();
propTable.put("nodeType", nodeType);
ServiceRegistration reg = bundleCtx.registerService(SvcLogicNodeExecutor.class.getName(),
BUILTIN_NODES.get(nodeType), propTable);
registrations.add(reg);
store.registerNodeType(nodeType);
LOG.info("SLI - registering node executor");
((SvcLogicServiceImpl)svcLogicServiceImpl).registerExecutor(nodeType, BUILTIN_NODES.get(nodeType));
}
}
}
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