* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights
* reserved.
+ * Modifications Copyright © 2018 IBM
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
package org.onap.ccsdk.sli.plugins.restapicall;
+import static com.google.common.base.Preconditions.checkNotNull;
+
import java.io.ByteArrayInputStream;
+import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
+import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
+import org.onap.ccsdk.sli.core.sli.SvcLogicException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
-public class XmlParser {
-
- private static final Logger log = LoggerFactory.getLogger(XmlParser.class);
-
- public static Map<String, String> convertToProperties(String s, Set<String> listNameList) {
- Handler handler = new Handler(listNameList);
- try {
- SAXParserFactory factory = SAXParserFactory.newInstance();
- SAXParser saxParser = factory.newSAXParser();
- InputStream in = new ByteArrayInputStream(s.getBytes());
- saxParser.parse(in, handler);
- } catch (Exception e) {
- e.printStackTrace();
- }
-
- return handler.getProperties();
- }
-
- private static class Handler extends DefaultHandler {
-
- private Set<String> listNameList;
-
- private Map<String, String> properties = new HashMap<>();
-
- public Map<String, String> getProperties() {
- return properties;
- }
-
- public Handler(Set<String> listNameList) {
- super();
- this.listNameList = listNameList;
- if (this.listNameList == null)
- this.listNameList = new HashSet<String>();
- }
-
- String currentName = "";
- String currentValue = "";
-
- @Override
- public void startElement(String uri, String localName, String qName, Attributes attributes)
- throws SAXException {
- super.startElement(uri, localName, qName, attributes);
-
- String name = localName;
- if (name == null || name.trim().length() == 0)
- name = qName;
- int i2 = name.indexOf(':');
- if (i2 >= 0)
- name = name.substring(i2 + 1);
-
- if (currentName.length() > 0)
- currentName += '.';
- currentName += name;
-
- String listName = removeIndexes(currentName);
-
- if (listNameList.contains(listName)) {
- int len = getInt(properties, currentName + "_length");
- properties.put(currentName + "_length", String.valueOf(len + 1));
- currentName += "[" + len + "]";
- }
- }
-
- @Override
- public void endElement(String uri, String localName, String qName) throws SAXException {
- super.endElement(uri, localName, qName);
-
- String name = localName;
- if (name == null || name.trim().length() == 0)
- name = qName;
- int i2 = name.indexOf(':');
- if (i2 >= 0)
- name = name.substring(i2 + 1);
-
- if (currentValue.trim().length() > 0) {
- currentValue = currentValue.trim();
- properties.put(currentName, currentValue);
-
- log.info("Added property: " + currentName + ": " + currentValue);
-
- currentValue = "";
- }
-
- int i1 = currentName.lastIndexOf("." + name);
- if (i1 <= 0)
- currentName = "";
- else
- currentName = currentName.substring(0, i1);
- }
-
- @Override
- public void characters(char[] ch, int start, int length) throws SAXException {
- super.characters(ch, start, length);
-
- String value = new String(ch, start, length);
- currentValue += value;
- }
-
- private static int getInt(Map<String, String> mm, String name) {
- String s = mm.get(name);
- if (s == null)
- return 0;
- return Integer.parseInt(s);
- }
-
- private String removeIndexes(String currentName) {
- String s = "";
- boolean add = true;
- for (int i = 0; i < currentName.length(); i++) {
- char c = currentName.charAt(i);
- if (c == '[')
- add = false;
- else if (c == ']')
- add = true;
- else if (add)
- s += c;
- }
- return s;
- }
- }
+public final class XmlParser {
+
+ private static final Logger log = LoggerFactory.getLogger(XmlParser.class);
+
+ private XmlParser() {
+ // Preventing instantiation of the same.
+ }
+
+ public static Map<String, String> convertToProperties(String s, Set<String> listNameList)
+ throws SvcLogicException {
+
+ checkNotNull(s, "Input should not be null.");
+
+ Handler handler = new Handler(listNameList);
+ try {
+ SAXParserFactory factory = SAXParserFactory.newInstance();
+ SAXParser saxParser = factory.newSAXParser();
+ InputStream in = new ByteArrayInputStream(s.getBytes());
+ saxParser.parse(in, handler);
+ } catch (ParserConfigurationException | IOException | SAXException | NumberFormatException e) {
+ throw new SvcLogicException("Unable to convert XML to properties" + e.getLocalizedMessage(), e);
+ }
+ return handler.getProperties();
+ }
+
+ private static class Handler extends DefaultHandler {
+
+ private Set<String> listNameList;
+
+ private Map<String, String> properties = new HashMap<>();
+
+ StringBuilder currentName = new StringBuilder();
+ StringBuilder currentValue = new StringBuilder();
+
+ public Handler(Set<String> listNameList) {
+ super();
+ this.listNameList = listNameList;
+ if (this.listNameList == null)
+ this.listNameList = new HashSet<>();
+ }
+
+ public Map<String, String> getProperties() {
+ return properties;
+ }
+
+ @Override
+ public void startElement(String uri, String localName, String qName, Attributes attributes)
+ throws SAXException {
+ super.startElement(uri, localName, qName, attributes);
+
+ String name = localName;
+ if (name == null || name.trim().length() == 0)
+ name = qName;
+ int i2 = name.indexOf(':');
+ if (i2 >= 0)
+ name = name.substring(i2 + 1);
+
+ if (currentName.length() > 0)
+ currentName.append(Character.toString('.'));
+ currentName.append(name);
+
+ String listName = removeIndexes(currentName.toString());
+
+ if (listNameList.contains(listName)) {
+ String n = currentName.toString() + "_length";
+ int len = getInt(properties, n);
+ properties.put(n, String.valueOf(len + 1));
+ currentName.append("[").append(len).append("]");
+ }
+ }
+
+ @Override
+ public void endElement(String uri, String localName, String qName) throws SAXException {
+ super.endElement(uri, localName, qName);
+
+ String name = localName;
+ if (name == null || name.trim().length() == 0)
+ name = qName;
+ int i2 = name.indexOf(':');
+ if (i2 >= 0)
+ name = name.substring(i2 + 1);
+
+ String s = currentValue.toString().trim();
+ if (s.length() > 0) {
+ properties.put(currentName.toString(), s);
+
+ log.info("Added property: {} : {}", currentName, s);
+ currentValue = new StringBuilder();
+ }
+
+ int i1 = currentName.lastIndexOf("." + name);
+ if (i1 <= 0)
+ currentName = new StringBuilder();
+ else
+ currentName = new StringBuilder(currentName.substring(0, i1));
+ }
+
+ @Override
+ public void characters(char[] ch, int start, int length) throws SAXException {
+ super.characters(ch, start, length);
+
+ String value = new String(ch, start, length);
+ currentValue.append(value);
+ }
+
+ private static int getInt(Map<String, String> mm, String name) {
+ String s = mm.get(name);
+ if (s == null)
+ return 0;
+ return Integer.parseInt(s);
+ }
+
+ private String removeIndexes(String currentName) {
+ StringBuilder b = new StringBuilder();
+ boolean add = true;
+ for (int i = 0; i < currentName.length(); i++) {
+ char c = currentName.charAt(i);
+ if (c == '[')
+ add = false;
+ else if (c == ']')
+ add = true;
+ else if (add)
+ b.append(Character.toString(c));
+ }
+ return b.toString();
+ }
+ }
}