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/*******************************************************************************
* Copyright (c) 2010-2012, Bergmann Gabor, Istvan Rath and Daniel Varro
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-v20.html.
*
* SPDX-License-Identifier: EPL-2.0
*******************************************************************************/
package tools.refinery.viatra.runtime.rete.network;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import java.util.TreeSet;
import tools.refinery.viatra.runtime.rete.traceability.PatternTraceInfo;
import tools.refinery.viatra.runtime.rete.traceability.TraceInfo;
/**
* Base implementation for a Rete node.
*
* @author Bergmann Gabor
*
*/
public abstract class BaseNode implements Node {
protected ReteContainer reteContainer;
protected long nodeId;
protected Object tag;
protected Set<TraceInfo> traceInfos;
/**
* @param reteContainer
* the container to create this node in
*/
public BaseNode(ReteContainer reteContainer) {
super();
this.reteContainer = reteContainer;
this.nodeId = reteContainer.registerNode(this);
this.traceInfos = new HashSet<TraceInfo>();
}
@Override
public String toString() {
if (tag != null)
return toStringCore() + "->" + getTraceInfoPatternsEnumerated() + "{" + tag.toString() + "}";
else
return toStringCore() + "->" + getTraceInfoPatternsEnumerated();
}
/**
* clients should override this to append before the tag / trace indicators
*/
protected String toStringCore() {
return "[" + nodeId + "]" + getClass().getSimpleName();
}
@Override
public ReteContainer getContainer() {
return reteContainer;
}
@Override
public long getNodeId() {
return nodeId;
}
@Override
public Object getTag() {
return tag;
}
@Override
public void setTag(Object tag) {
this.tag = tag;
}
@Override
public Set<TraceInfo> getTraceInfos() {
return Collections.unmodifiableSet(traceInfos);
}
@Override
public void assignTraceInfo(TraceInfo traceInfo) {
traceInfos.add(traceInfo);
traceInfo.assignNode(this);
}
@Override
public void acceptPropagatedTraceInfo(TraceInfo traceInfo) {
assignTraceInfo(traceInfo);
}
/**
* Descendants should use this in e.g. logging
*/
protected String getTraceInfoPatternsEnumerated() {
TreeSet<String> patternNames = new TreeSet<String>();
for (TraceInfo trInfo : traceInfos) {
if (trInfo instanceof PatternTraceInfo) {
final String pName = ((PatternTraceInfo) trInfo).getPatternName();
patternNames.add(pName);
}
}
return patternNames.toString();
}
}
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