68 lines
2.0 KiB
Java
68 lines
2.0 KiB
Java
package eu.dnetlib.data.collective.transformation.rulelanguage.util;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Map;
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import java.util.StringTokenizer;
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/**
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* @author jochen
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*
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*/
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public class Converter {
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private static final String xpathExpr = "xpath:\"";
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//private static final String labelExpr = "label:";
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public static String getXpathFromLabelExpr(String aElement){
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// TODO validate the argument -> consisting of 3 tokens, delimited by dot
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StringTokenizer tokenizer = new StringTokenizer(aElement, ".");
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List<String> tokenList = new LinkedList<String>();
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while (tokenizer.hasMoreTokens()){
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tokenList.add(tokenizer.nextToken());
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}
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StringBuilder builder = new StringBuilder();
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builder.append("//"); // the xpath-expr
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builder.append(tokenList.get(0) + ":"); // the namespace
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builder.append(tokenList.get(2)); // the elementname
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return builder.toString();
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}
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/**
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* extracts a xpath-expression made in a production rule
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* @param aElement
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* @return xpath expression
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*/
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public static String getXpathFromXpathExpr(String aElement){
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String xpath = "";
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if (aElement.startsWith(xpathExpr)){
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xpath = aElement.substring(xpathExpr.length(), aElement.length() - 1);
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}
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return xpath;
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}
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public static boolean isXpathReturningString(String aXpathExpr){
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String[] functions = {"concat", "normalize-space", "translate", "substring"};
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for (String fct: functions)
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if (aXpathExpr.startsWith(fct)) return true;
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return false;
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}
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public static String getUnquotedString(String aValue){
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return aValue.substring(1, aValue.length() - 1);
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}
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/**
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* returns a list of name-space declarations used in xsl
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* @param nsPrefixMap - a map of name-space prefixes and their uris
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* @return list of name-space declarations
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*/
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public static List<String> getBoundPrefixes(Map<String, String> nsPrefixMap){
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List<String> nsList = new LinkedList<String>();
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for (String key: nsPrefixMap.keySet()){
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nsList.add("xmlns:" + key + "=" + "\"" + nsPrefixMap.get(key) + "\" ");
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}
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return nsList;
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}
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}
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