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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 org.onap.ccsdk.sli.core.sli.MetricLogger;
import org.onap.ccsdk.sli.core.sli.SvcLogicAdaptor;
import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
import org.onap.ccsdk.sli.core.sli.SvcLogicException;
import org.onap.ccsdk.sli.core.sli.SvcLogicJavaPlugin;
import org.onap.ccsdk.sli.core.sli.SvcLogicNode;
import org.onap.ccsdk.sli.core.sli.SvcLogicRecorder;
import org.onap.ccsdk.sli.core.sli.SvcLogicResource;
import org.osgi.framework.BundleContext;
import org.osgi.framework.FrameworkUtil;
import org.osgi.framework.ServiceReference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public abstract class SvcLogicNodeExecutor {
public abstract SvcLogicNode execute(SvcLogicService svc, SvcLogicNode node, SvcLogicContext ctx) throws SvcLogicException;
private static final Logger LOG = LoggerFactory.getLogger(SvcLogicNodeExecutor.class);
protected String evaluateNodeTest(SvcLogicNode node, SvcLogicContext ctx)
throws SvcLogicException {
if (node == null) {
return null;
}
return (SvcLogicExpressionResolver.evaluate(node.getAttribute("test"),
node, ctx));
}
protected SvcLogicAdaptor getAdaptor(String adaptorName) {
return SvcLogicAdaptorFactory.getInstance(adaptorName);
}
protected SvcLogicResource getSvcLogicResource(String plugin) {
BundleContext bctx = FrameworkUtil.getBundle(this.getClass())
.getBundleContext();
ServiceReference sref = bctx.getServiceReference(plugin);
if (sref != null) {
SvcLogicResource resourcePlugin = (SvcLogicResource) bctx
.getService(sref);
return resourcePlugin;
}
else {
LOG.warn("Could not find service reference object for plugin " + plugin);
return null;
}
}
protected SvcLogicRecorder getSvcLogicRecorder(String plugin) {
BundleContext bctx = FrameworkUtil.getBundle(this.getClass())
.getBundleContext();
ServiceReference sref = bctx.getServiceReference(plugin);
if (sref != null) {
SvcLogicRecorder resourcePlugin = (SvcLogicRecorder) bctx
.getService(sref);
return resourcePlugin;
}
else {
return null;
}
}
protected SvcLogicJavaPlugin getSvcLogicJavaPlugin(String pluginName){
BundleContext bctx = FrameworkUtil.getBundle(this.getClass())
.getBundleContext();
ServiceReference sref = bctx.getServiceReference(pluginName);
if (sref == null) {
LOG.warn("Could not find service reference object for plugin " + pluginName);
return null;
} else {
SvcLogicJavaPlugin plugin = (SvcLogicJavaPlugin) bctx
.getService(sref);
return plugin;
}
}
protected SvcLogicNode getNextNode(SvcLogicNode node, String outValue) {
MetricLogger.resetContext();
SvcLogicNode nextNode = node.getOutcomeValue(outValue);
if (nextNode != null) {
if (LOG.isDebugEnabled()) {
LOG.debug("about to execute " + outValue + " branch");
}
return (nextNode);
}
nextNode = node.getOutcomeValue("Other");
if (nextNode != null) {
if (LOG.isDebugEnabled()) {
LOG.debug("about to execute Other branch");
}
} else {
if (LOG.isDebugEnabled()) {
LOG.debug("no " + outValue + " or Other branch found");
}
}
return (nextNode);
}
}
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