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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.base;
import org.onap.ccsdk.sli.core.sli.BreakNodeException;
import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
import org.onap.ccsdk.sli.core.sli.SvcLogicException;
import org.onap.ccsdk.sli.core.sli.SvcLogicExpression;
import org.onap.ccsdk.sli.core.sli.SvcLogicNode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class ForNodeExecutor extends AbstractSvcLogicNodeExecutor {
private static final Logger LOG = LoggerFactory
.getLogger(ForNodeExecutor.class);
@Override
public SvcLogicNode execute(SvcLogicServiceBase svc, SvcLogicNode node,
SvcLogicContext ctx) throws SvcLogicException {
SvcLogicExpression atomicExpr = node.getAttribute("atomic");
String atomicStr = SvcLogicExpressionResolver.evaluate(atomicExpr, node, ctx);
boolean isAtomic = !("false".equalsIgnoreCase(atomicStr));
int numOutcomes = node.getNumOutcomes();
String idxVar = SvcLogicExpressionResolver.evaluate(
node.getAttribute("index"), node, ctx);
String startVal = SvcLogicExpressionResolver.evaluate(
node.getAttribute("start"), node, ctx);
String endVal = SvcLogicExpressionResolver.evaluate(
node.getAttribute("end"), node, ctx);
LOG.debug("Executing "+ (isAtomic ? "atomic" : "non-atomic") + " for loop - for (int " + idxVar + " = " + startVal
+ "; " + idxVar + " < " + endVal + "; " + idxVar + "++)");
int startIdx = 0;
int endIdx = 0;
try {
startIdx = Integer.parseInt(startVal);
endIdx = Integer.parseInt(endVal);
} catch (NumberFormatException e) {
SvcLogicExpression silentFailureExpr = node.getAttribute("silentFailure");
String silentFailure = SvcLogicExpressionResolver.evaluate(silentFailureExpr, node, ctx);
boolean isSilentFailure = Boolean.parseBoolean(silentFailure);
String message = "Invalid index values [" + startVal + "," + endVal + "]";
if(!isSilentFailure){
throw new SvcLogicException(message);
}else{
LOG.debug(message + ". Not exiting because silentFailure was set to true.");
return(null);
}
}
try {
for (int ctr = startIdx; ctr < endIdx; ctr++) {
ctx.setAttribute(idxVar, "" + ctr);
for (int i = 0; i < numOutcomes; i++) {
if ("failure".equals(ctx.getStatus()) && isAtomic) {
LOG.info("For - stopped executing nodes due to failure status");
return(null);
}
SvcLogicNode nextNode = node.getOutcomeValue("" + (i + 1));
if (nextNode != null) {
if (LOG.isDebugEnabled()) {
LOG.debug("For - executing outcome " + (i + 1));
}
SvcLogicNode innerNextNode = nextNode;
while (innerNextNode != null) {
innerNextNode = svc.executeNode(innerNextNode, ctx);
}
} else {
if (LOG.isDebugEnabled()) {
LOG.debug("For - done: no outcome " + (i + 1));
}
}
}
}
} catch (BreakNodeException br) {
LOG.error("ForNodeExecutor caught break",br);
}
return (null);
}
}
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