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/*-
* ============LICENSE_START=======================================================
* ONAP : APP-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.onap.appc.ccadaptor;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class XmlUtil {
private static final Logger log = LoggerFactory.getLogger(XmlUtil.class);
public static String getXml(Map<String, String> varmap, String var) {
Object o = createStructure(varmap, var);
return generateXml(o, 0);
}
private static Object createStructure(Map<String, String> flatmap, String var) {
if (flatmap.containsKey(var)) {
return flatmap.get(var);
}
Map<String, Object> mm = new HashMap<>();
for (String k : flatmap.keySet()) {
if (k.startsWith(var + ".")) {
int i1 = k.indexOf('.', var.length() + 1);
int i2 = k.indexOf('[', var.length() + 1);
int i3 = k.length();
if (i1 > 0 && i1 < i3) {
i3 = i1;
}
if (i2 > 0 && i2 < i3) {
i3 = i2;
}
String k1 = k.substring(var.length() + 1, i3);
String var1 = k.substring(0, i3);
if (!mm.containsKey(k1)) {
Object str = createStructure(flatmap, var1);
if (str != null && (!(str instanceof String) || ((String) str).trim().length() > 0)) {
mm.put(k1, str);
}
}
}
}
if (!mm.isEmpty()) {
return mm;
}
boolean arrayFound = false;
for (String k : flatmap.keySet()) {
if (k.startsWith(var + "[")) {
arrayFound = true;
break;
}
}
if (arrayFound) {
List<Object> ll = new ArrayList<>();
int length = Integer.MAX_VALUE;
String lengthStr = flatmap.get(var + "_length");
if (lengthStr != null) {
try {
length = Integer.parseInt(lengthStr);
} catch (Exception e) {
log.warn("Invalid number for " + var + "_length:" + lengthStr);
}
}
for (int i = 0; i < length; i++) {
Object v = createStructure(flatmap, var + '[' + i + ']');
if (v == null) {
break;
}
ll.add(v);
}
if (!ll.isEmpty()) {
return ll;
}
}
return null;
}
@SuppressWarnings("unchecked")
private static String generateXml(Object o, int indent) {
if (o == null) {
return null;
}
if (o instanceof String) {
return (String) o;
}
if (o instanceof Map) {
StringBuilder ss = new StringBuilder();
Map<String, Object> mm = (Map<String, Object>) o;
for (String k : mm.keySet()) {
Object v = mm.get(k);
if (v instanceof String) {
ss.append(pad(indent)).append('<').append(k).append('>');
ss.append(v);
ss.append("</").append(k).append('>').append('\n');
} else if (v instanceof Map) {
ss.append(pad(indent)).append('<').append(k).append('>').append('\n');
ss.append(generateXml(v, indent + 1));
ss.append(pad(indent)).append("</").append(k).append('>').append('\n');
} else if (v instanceof List) {
List<Object> ll = (List<Object>) v;
for (Object o1 : ll) {
ss.append(pad(indent)).append('<').append(k).append('>').append('\n');
ss.append(generateXml(o1, indent + 1));
ss.append(pad(indent)).append("</").append(k).append('>').append('\n');
}
}
}
return ss.toString();
}
return null;
}
private static String pad(int n) {
String s = "";
for (int i = 0; i < n; i++) {
s += '\t';
}
return s;
}
}
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