sync restapi-call-node with ecomp

sync onap rest-api-call-node with ecomp

Issue-ID: CCSDK-1659
Signed-off-by: Agarwal, Ruchira (ra1926) <ra1926@att.com>
Change-Id: I08b0b8332b68a22710cd412997f3763de4b5b8d3

5 files changed, 121 insertions, 71 deletions

diff --git a/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/HttpResponse.java b/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/HttpResponse.java
index 66993aabc..574089528 100644
--- a/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/HttpResponse.java
+++ b/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/HttpResponse.java
@@ -8,9 +8,9 @@
  * 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.
@@ -21,6 +21,8 @@
 
 package org.onap.ccsdk.sli.plugins.restapicall;
 
+import java.util.List;
+import java.util.Map;
 import javax.ws.rs.core.MultivaluedMap;
 
 public class HttpResponse {
@@ -28,4 +30,5 @@ public class HttpResponse {
     public String message;
     public String body;
     public MultivaluedMap<String, String> headers;
+    public Map<String, List<String>> headers2;
 }
diff --git a/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/JsonParser.java b/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/JsonParser.java
index 189ddde31..910baf52b 100644
--- a/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/JsonParser.java
+++ b/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/JsonParser.java
@@ -8,7 +8,7 @@
  * 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
@@ -50,7 +50,15 @@ public final class JsonParser {
         checkNotNull(s, "Input should not be null.");
 
         try {
-            JSONObject json = new JSONObject(s);
+            JSONObject json = null;
+            //support top level list in json response
+            if (s.startsWith("[")) {
+                JSONArray jsonArr = new JSONArray(s);
+                json = jsonArr.getJSONObject(0);
+            } else {
+                json = new JSONObject(s);
+            }
+
             Map<String, Object> wm = new HashMap<>();
             Iterator<String> ii = json.keys();
             while (ii.hasNext()) {
diff --git a/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/RetryPolicy.java b/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/RetryPolicy.java
index 65684d937..8d5143be3 100644
--- a/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/RetryPolicy.java
+++ b/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/RetryPolicy.java
@@ -21,41 +21,44 @@
  */
 
 package org.onap.ccsdk.sli.plugins.restapicall;
+
 public class RetryPolicy {
     private String[] hostnames;
     private Integer maximumRetries;
-	
     private int position;
-	
     private int retryCount;
+
     public RetryPolicy(String[] hostnames, Integer maximumRetries) {
-	this.hostnames = hostnames;
-	this.maximumRetries = maximumRetries;
-	
-	this.position = 0;
-	
-	this.retryCount = 0;
+    this.hostnames = hostnames;
+    this.maximumRetries = maximumRetries;
+    this.position = 0;
+    this.retryCount = 0;
+
     }
+
     public Integer getMaximumRetries() {
-	return maximumRetries;
+    return maximumRetries;
     }
+
     public int getRetryCount() {
-	return retryCount;
+    return retryCount;
     }
+
     public Boolean shouldRetry() {
-	return retryCount < maximumRetries + 1;
+    return retryCount < maximumRetries + 1;
     }
+
     public String getRetryMessage() {
-	return retryCount + " retry attempts were made out of " + maximumRetries + " maximum retry attempts.";
+    return retryCount + " retry attempts were made out of " + maximumRetries + " maximum retry attempts.";
     }
     
     public String getNextHostName() throws RetryException {
-	retryCount++;
-	position++;
-	
-	if (position > hostnames.length - 1) {
-	    position = 0;
-	}
-	return hostnames[position];
+    retryCount++;
+    position++;
+    if (position > hostnames.length - 1) {
+        position = 0;
     }
-}
\ No newline at end of file
+    return hostnames[position];
+    }
+
+}
diff --git a/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/XmlJsonUtil.java b/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/XmlJsonUtil.java
index 4712b4298..bc6afd84c 100644
--- a/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/XmlJsonUtil.java
+++ b/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/XmlJsonUtil.java
@@ -8,9 +8,9 @@
  * 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.
@@ -25,7 +25,6 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -67,38 +66,45 @@ public final class XmlJsonUtil {
 
     private static Object createStructure(Map<String, String> flatmap, String var) {
         if (flatmap.containsKey(var)) {
-            if (var.endsWith("_length") || var.endsWith("].key"))
+            if (var.endsWith("_length") || var.endsWith("].key")) {
                 return null;
+            }
             return flatmap.get(var);
         }
 
         Map<String, Object> mm = new HashMap<>();
-        for (String k : flatmap.keySet())
+        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)
+                if (i1 > 0 && i1 < i3) {
                     i3 = i1;
-                if (i2 > 0 && i2 < i3)
+                }
+                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))
+                    if (str != null && (!(str instanceof String) || ((String) str).trim().length() > 0)) {
                         mm.put(k1, str);
+                    }
                 }
             }
-        if (!mm.isEmpty())
+        }
+        if (!mm.isEmpty()) {
             return mm;
+        }
 
         boolean arrayFound = false;
-        for (String k : flatmap.keySet())
+        for (String k : flatmap.keySet()) {
             if (k.startsWith(var + "[")) {
                 arrayFound = true;
                 break;
             }
+        }
 
         if (arrayFound) {
             List<Object> ll = new ArrayList<>();
@@ -115,13 +121,15 @@ public final class XmlJsonUtil {
 
             for (int i = 0; i < length; i++) {
                 Object v = createStructure(flatmap, var + '[' + i + ']');
-                if (v == null)
+                if (v == null) {
                     break;
+                }
                 ll.add(v);
             }
 
-            if (!ll.isEmpty())
+            if (!ll.isEmpty()) {
                 return ll;
+            }
         }
 
         return null;
@@ -129,16 +137,18 @@ public final class XmlJsonUtil {
 
     @SuppressWarnings("unchecked")
     private static String generateXml(Object o, int indent, boolean escape) {
-        if (o == null)
+        if (o == null) {
             return null;
+        }
 
-        if (o instanceof String)
-            return escape ? escapeXml((String) o) : (String) o;;
+        if (o instanceof String) {
+            return escape ? escapeXml((String) o) : (String) o;
+        };
 
         if (o instanceof Map) {
             StringBuilder ss = new StringBuilder();
             Map<String, Object> mm = (Map<String, Object>) o;
-            for (Map.Entry<String, Object> entry: mm.entrySet()) {
+            for (Map.Entry<String, Object> entry : mm.entrySet()) {
                 Object v = entry.getValue();
                 String key = entry.getKey();
                 if (v instanceof String) {
@@ -164,10 +174,13 @@ public final class XmlJsonUtil {
 
         return null;
     }
-
     private static String generateJson(Object o, boolean escape, boolean quotes) {
-        if (o == null)
+        if (o == null) {
             return null;
+        }
+        if (o instanceof String && ((String) o).length() == 0) {
+            return null;
+        }
 
         StringBuilder ss = new StringBuilder();
         generateJson(ss, o, 0, false, escape, quotes);
@@ -178,8 +191,9 @@ public final class XmlJsonUtil {
     private static void generateJson(StringBuilder ss, Object o, int indent, boolean padFirst, boolean escape, boolean quotes) {
         if (o instanceof String) {
             String s = escape ? escapeJson((String) o) : (String) o;
-            if (padFirst)
+            if (padFirst) {
                 ss.append(pad(indent));
+            }
             if (quotes) {
                 ss.append('"').append(s).append('"');
             } else {
@@ -191,14 +205,16 @@ public final class XmlJsonUtil {
         if (o instanceof Map) {
             Map<String, Object> mm = (Map<String, Object>) o;
 
-            if (padFirst)
+            if (padFirst) {
                 ss.append(pad(indent));
+            }
             ss.append("{\n");
 
             boolean first = true;
             for (Map.Entry<String, Object> entry : mm.entrySet()) {
-                if (!first)
+                if (!first) {
                     ss.append(",\n");
+                }
                 first = false;
                 Object v = entry.getValue();
                 String key = entry.getKey();
@@ -215,14 +231,16 @@ public final class XmlJsonUtil {
         if (o instanceof List) {
             List<Object> ll = (List<Object>) o;
 
-            if (padFirst)
+            if (padFirst) {
                 ss.append(pad(indent));
+            }
             ss.append("[\n");
 
             boolean first = true;
             for (Object o1 : ll) {
-                if (!first)
+                if (!first) {
                     ss.append(",\n");
+                }
                 first = false;
 
                 generateJson(ss, o1, indent + 1, true, escape, quotes);
@@ -241,14 +259,16 @@ public final class XmlJsonUtil {
             int i11 = s.indexOf('}', k);
             int i12 = s.indexOf(']', k);
             int i1 = -1;
-            if (i11 < 0)
+            if (i11 < 0) {
                 i1 = i12;
-            else if (i12 < 0)
+            } else if (i12 < 0) {
                 i1 = i11;
-            else
+            } else {
                 i1 = i11 < i12 ? i11 : i12;
-            if (i1 < 0)
+            }
+            if (i1 < 0) {
                 break;
+            }
 
             int i2 = s.lastIndexOf(',', i1);
             if (i2 < 0) {
@@ -282,15 +302,14 @@ public final class XmlJsonUtil {
             if (i11 < 0) {
                 i1 = i12;
                 curly = false;
-            } else if (i12 < 0)
+            } else if (i12 < 0) {
                 i1 = i11;
-            else
-                if (i11 < i12)
-                    i1 = i11;
-                else {
-                    i1 = i12;
-                    curly = false;
-                }
+            } else if (i11 < i12) {
+                i1 = i11;
+            } else {
+                i1 = i12;
+                curly = false;
+            }
 
             if (i1 >= 0) {
                 int i2 = curly ? s.indexOf('}', i1) : s.indexOf(']', i1);
@@ -298,25 +317,31 @@ public final class XmlJsonUtil {
                     String value = s.substring(i1 + 1, i2);
                     if (value.trim().length() == 0) {
                         int i4 = s.lastIndexOf('\n', i1);
-                        if (i4 < 0)
+                        if (i4 < 0) {
                             i4 = 0;
+                        }
                         int i5 = s.indexOf('\n', i2);
-                        if (i5 < 0)
+                        if (i5 < 0) {
                             i5 = s.length();
+                        }
+
 
                         /*If template mandates empty construct to be present, those should not be removed.*/
-                        if ((template != null) && template.contains(s.substring(i4))) {
+                        if (template != null && template.contains(s.substring(i4))) {
                             k = i1 + 1;
                         } else {
                             s = s.substring(0, i4) + s.substring(i5);
                             k = 0;
                         }
-                    } else
+                    } else {
                         k = i1 + 1;
-                } else
+                    }
+                } else {
                     break;
-            } else
+                }
+            } else {
                 break;
+            }
         }
 
         return s;
@@ -326,8 +351,9 @@ public final class XmlJsonUtil {
         int k = 0;
         while (k < s.length()) {
             int i1 = s.indexOf('<', k);
-            if (i1 < 0 || i1 == s.length() - 1)
+            if (i1 < 0 || i1 == s.length() - 1) {
                 break;
+            }
 
             char c1 = s.charAt(i1 + 1);
             if (c1 == '?' || c1 == '!') {
@@ -355,11 +381,13 @@ public final class XmlJsonUtil {
             }
 
             int i4 = s.lastIndexOf('\n', i1);
-            if (i4 < 0)
+            if (i4 < 0) {
                 i4 = 0;
+            }
             int i5 = s.indexOf('\n', i3);
-            if (i5 < 0)
+            if (i5 < 0) {
                 i5 = s.length();
+            }
 
             s = s.substring(0, i4) + s.substring(i5);
             k = 0;
@@ -385,8 +413,9 @@ public final class XmlJsonUtil {
 
     private static String pad(int n) {
         StringBuilder s = new StringBuilder();
-        for (int i = 0; i < n; i++)
+        for (int i = 0; i < n; i++) {
             s.append(Character.toString('\t'));
+        }
         return s.toString();
     }
 }
diff --git a/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/XmlParser.java b/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/XmlParser.java
index cf6af66f2..42e9e57ad 100644
--- a/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/XmlParser.java
+++ b/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/XmlParser.java
@@ -35,6 +35,7 @@ import java.util.Set;
 import javax.xml.parsers.ParserConfigurationException;
 import javax.xml.parsers.SAXParser;
 import javax.xml.parsers.SAXParserFactory;
+import javax.xml.XMLConstants;
 
 import org.onap.ccsdk.sli.core.sli.SvcLogicException;
 import org.slf4j.Logger;
@@ -42,6 +43,7 @@ import org.slf4j.LoggerFactory;
 import org.xml.sax.Attributes;
 import org.xml.sax.SAXException;
 import org.xml.sax.helpers.DefaultHandler;
+import org.xml.sax.XMLReader;
 
 public final class XmlParser {
 
@@ -58,10 +60,15 @@ public final class XmlParser {
 
         Handler handler = new Handler(listNameList);
         try {
-            SAXParserFactory factory = SAXParserFactory.newInstance();
-            SAXParser saxParser = factory.newSAXParser();
+            SAXParserFactory spf = SAXParserFactory.newInstance();
+            spf.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
+            spf.setFeature("http://xml.org/sax/features/external-general-entities", false);
+            spf.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
+            spf.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);  
             InputStream in = new ByteArrayInputStream(s.getBytes());
+            SAXParser saxParser = spf.newSAXParser();
             saxParser.parse(in, handler);
+            
         } catch (ParserConfigurationException | IOException | SAXException | NumberFormatException e) {
             throw new SvcLogicException("Unable to convert XML to properties" + e.getLocalizedMessage(), e);
         }