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/*-
* ============LICENSE_START=======================================================
* openECOMP : SDN-C
* ================================================================================
* 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.openecomp.sdnc.sli;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
public class SvcLogicContext {
private static final Logger LOG = LoggerFactory
.getLogger(SvcLogicContext.class);
private HashMap<String, String> attributes;
private DOMDataBroker domDataBroker;
private String status = "success";
public SvcLogicContext()
{
this.attributes = new HashMap<String,String> ();
}
public SvcLogicContext(Properties props)
{
this.attributes = new HashMap<String, String> ();
if (props.containsKey("SvcLogic.status"))
{
this.status = props.getProperty("SvcLogic.status");
}
for (Object nameObj : props.keySet())
{
String propName = (String) nameObj;
attributes.put(propName, props.getProperty(propName));
}
}
public DOMDataBroker getDomDataBroker() {
return domDataBroker;
}
public void setDomDataBroker(DOMDataBroker domDataBroker) {
this.domDataBroker = domDataBroker;
}
public String getAttribute(String name)
{
if (attributes.containsKey(name))
{
return(attributes.get(name));
}
else
{
return(null);
}
}
public void setAttribute(String name, String value)
{
if (value == null) {
if (attributes.containsKey(name)) {
attributes.remove(name);
}
} else {
attributes.put(name, value);
}
}
public Set<String> getAttributeKeySet()
{
return(attributes.keySet());
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
public Properties toProperties()
{
Properties props = new Properties();
if (status != null)
{
props.setProperty("SvcLogic.status", status);
}
for (String attrName : attributes.keySet())
{
String attrVal = attributes.get(attrName);
if (attrVal == null) {
LOG.warn("attribute " + attrName
+ "null - setting to empty string");
props.setProperty(attrName, "");
} else {
props.setProperty(attrName, attributes.get(attrName));
}
}
return(props);
}
public void mergeDocument(String pfx, Document doc) {
String prefix = "";
if (pfx != null) {
prefix = pfx;
}
Element root = doc.getDocumentElement();
mergeElement(prefix, root, null);
}
public void mergeElement(String pfx, Element element, Map<String, Integer> nodeMap) {
// In XML, cannot tell the difference between containers and lists.
// So, have to treat each element as both (ugly but necessary).
// We do this by passing a nodeMap to be used to count instance of each tag,
// which will be used to set _length and to set index
LOG.trace("mergeElement("+pfx+","+element.getTagName()+","+nodeMap+")");
String curTagName = element.getTagName();
String prefix = curTagName;
if (pfx != null) {
prefix = pfx + "." + prefix;
}
int myIdx = 0;
if (nodeMap != null) {
if (nodeMap.containsKey(curTagName)) {
myIdx = nodeMap.get(curTagName).intValue();
}
nodeMap.put(curTagName, new Integer(myIdx+1));
this.setAttribute(prefix+"_length", ""+(myIdx+1));
}
NodeList children = element.getChildNodes();
int numChildren = children.getLength();
Map<String, Integer> childMap = new HashMap<String, Integer>();
Map<String, Integer> idxChildMap = new HashMap<String, Integer>();
for (int i = 0 ; i < numChildren ; i++) {
Node curNode = children.item(i);
if (curNode instanceof Text) {
Text curText = (Text) curNode;
String curTextValue = curText.getTextContent();
LOG.trace("Setting ctx variable "+prefix+" = "+curTextValue);
this.setAttribute(prefix, curText.getTextContent());
} else if (curNode instanceof Element) {
mergeElement(prefix, (Element) curNode, childMap);
if (nodeMap != null) {
mergeElement(prefix+"["+myIdx+"]", (Element)curNode, idxChildMap);
}
}
}
}
public String resolve(String ctxVarName) {
if (ctxVarName.indexOf('[') == -1) {
// Ctx variable contains no arrays
return (this.getAttribute(ctxVarName));
}
// Resolve any array references
StringBuffer sbuff = new StringBuffer();
String[] ctxVarParts = ctxVarName.split("\\[");
sbuff.append(ctxVarParts[0]);
for (int i = 1; i < ctxVarParts.length; i++) {
if (ctxVarParts[i].startsWith("$")) {
int endBracketLoc = ctxVarParts[i].indexOf("]");
if (endBracketLoc == -1) {
// Missing end bracket ... give up parsing
LOG.warn("Variable reference " + ctxVarName
+ " seems to be missing a ']'");
return (this.getAttribute(ctxVarName));
}
String idxVarName = ctxVarParts[i].substring(1, endBracketLoc);
String remainder = ctxVarParts[i].substring(endBracketLoc);
sbuff.append("[");
sbuff.append(this.getAttribute(idxVarName));
sbuff.append(remainder);
} else {
// Index is not a variable reference
sbuff.append("[");
sbuff.append(ctxVarParts[i]);
}
}
return (this.getAttribute(sbuff.toString()));
}
}
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