CCSDK PropNode can read JSON and put to ctx

Issue-ID: CCSDK-304
Change-Id: I510fe73c3eedc49071e386689090104a761a03a6

CCSDK PropertyNode can now read a JSON file and put to ctx memory

Change-Id: I440ae043c020a08cd869df587916799dd7e3aeea

CCSDK PropertyNode can now read a JSON file and put to ctx memory

Issue-ID: CCSDK-304
Change-Id: Ic06a89c2327d07b31a1f45b9cc57783d8faf370a
Signed-off-by: Ganesh Chandrasekaran <ganesh.c@samsung.com>

3 files changed, 171 insertions, 14 deletions

diff --git a/properties-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/prop/JsonParser.java b/properties-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/prop/JsonParser.java
new file mode 100644
index 000000000..89243a055
--- /dev/null
+++ b/properties-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/prop/JsonParser.java
@@ -0,0 +1,94 @@
+/*-
+ * ============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.onap.ccsdk.sli.plugins.prop;
+
+import org.codehaus.jettison.json.JSONArray;
+import org.codehaus.jettison.json.JSONException;
+import org.codehaus.jettison.json.JSONObject;
+import org.onap.ccsdk.sli.core.sli.SvcLogicException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+public final class JsonParser {
+
+    private static final Logger log = LoggerFactory.getLogger(JsonParser.class);
+
+    private JsonParser() {
+        // Preventing instantiation of the same.
+    }
+
+    @SuppressWarnings("unchecked")
+    public static Map<String, String> convertToProperties(String s)
+        throws SvcLogicException {
+
+        checkNotNull(s, "Input should not be null.");
+
+        try {
+            JSONObject json = new JSONObject(s);
+            Map<String, Object> wm = new HashMap<>();
+            Iterator<String> ii = json.keys();
+            while (ii.hasNext()) {
+                String key1 = ii.next();
+                wm.put(key1, json.get(key1));
+            }
+
+            Map<String, String> mm = new HashMap<>();
+
+            while (!wm.isEmpty())
+                for (String key : new ArrayList<>(wm.keySet())) {
+                    Object o = wm.get(key);
+                    wm.remove(key);
+
+                    if (o instanceof Boolean || o instanceof Number || o instanceof String) {
+                        mm.put(key, o.toString());
+
+                        log.info("Added property: {} : {}", key, o.toString());
+                    } else if (o instanceof JSONObject) {
+                        JSONObject jo = (JSONObject) o;
+                        Iterator<String> i = jo.keys();
+                        while (i.hasNext()) {
+                            String key1 = i.next();
+                            wm.put(key + "." + key1, jo.get(key1));
+                        }
+                    } else if (o instanceof JSONArray) {
+                        JSONArray ja = (JSONArray) o;
+                        mm.put(key + "_length", String.valueOf(ja.length()));
+
+                        log.info("Added property: {}_length: {}", key, String.valueOf(ja.length()));
+
+                        for (int i = 0; i < ja.length(); i++)
+                            wm.put(key + '[' + i + ']', ja.get(i));
+                    }
+                }
+            return mm;
+        } catch (JSONException e) {
+            throw new SvcLogicException("Unable to convert JSON to properties " + e.getLocalizedMessage(), e);
+        }
+    }
+}
diff --git a/properties-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/prop/Parameters.java b/properties-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/prop/Parameters.java
new file mode 100644
index 000000000..e15f0822d
--- /dev/null
+++ b/properties-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/prop/Parameters.java
@@ -0,0 +1,27 @@
+/*-
+ * ============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.onap.ccsdk.sli.plugins.prop;
+
+public class Parameters {
+    public String fileName;
+    public String contextPrefix;
+}
diff --git a/properties-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/prop/PropertiesNode.java b/properties-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/prop/PropertiesNode.java
index b4886d552..63fdeded8 100644
--- a/properties-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/prop/PropertiesNode.java
+++ b/properties-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/prop/PropertiesNode.java
@@ -21,6 +21,7 @@
 
 package org.onap.ccsdk.sli.plugins.prop;
 
+import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
@@ -38,27 +39,62 @@ public class PropertiesNode implements SvcLogicJavaPlugin {
     private static final Logger log = LoggerFactory.getLogger(PropertiesNode.class);
 
     public void readProperties(Map<String, String> paramMap, SvcLogicContext ctx) throws SvcLogicException {
-        String fileName = parseParam(paramMap, "fileName", true, null);
-        String contextPrefix = parseParam(paramMap, "contextPrefix", false, null);
-
+        Parameters param = getParameters(paramMap);
+        Properties prop = new Properties();
         try {
-            Properties pp = new Properties();
-            InputStream in = new FileInputStream(fileName);
-            pp.load(in);
-            for (Object key : pp.keySet()) {
-                String pfx = contextPrefix != null ? contextPrefix + '.' : "";
-                String name = (String) key;
-                String value = pp.getProperty(name);
-                if (value != null && value.trim().length() > 0) {
-                    ctx.setAttribute(pfx + name, value.trim());
-                    log.info("+++ " + pfx + name + ": [" + value + "]");
+            File file = new File(param.fileName);
+            InputStream in = new FileInputStream(file);
+            Map<String, String> mm = null;
+            String pfx = param.contextPrefix != null ? param.contextPrefix + '.' : "";
+            if ("json".equalsIgnoreCase(getFileExtension(param.fileName))){
+                byte[] data = new byte[(int) file.length()];
+                in.read(data);
+                in.close();
+                String str = new String(data, "UTF-8");
+                mm = JsonParser.convertToProperties(str);
+            } else {
+                prop.load(in);
+                for (Object key : prop.keySet()) {
+                    String name = (String) key;
+                    String value = prop.getProperty(name);
+                    if (value != null && value.trim().length() > 0) {
+                        ctx.setAttribute(pfx + name, value.trim());
+                        log.info("+++ " + pfx + name + ": [" + value + "]");
+                    }
+                }
+            }
+            if (mm != null){
+                for (Map.Entry<String,String> entry : mm.entrySet()){
+                    ctx.setAttribute(pfx + entry.getKey(), entry.getValue());
+                    log.info("+++ " + pfx + entry.getKey() + ": [" + entry.getValue() + "]");
                 }
             }
+
         } catch (IOException e) {
-            throw new SvcLogicException("Cannot read property file: " + fileName + ": " + e.getMessage(), e);
+            throw new SvcLogicException("Cannot read property file: " + param.fileName + ": " + e.getMessage(), e);
         }
     }
 
+    /* Getting extension has to do the following
+    * ""                            -->   ""
+    * "name"                        -->   ""
+    * "name.txt"                    -->   "txt"
+    * ".htpasswd"                   -->   ""
+    * "name.with.many.dots.myext"   -->   "myext"
+    */
+    private static String getFileExtension(String fileName) {
+        if(fileName.lastIndexOf(".") != -1 && fileName.lastIndexOf(".") != 0)
+            return fileName.substring(fileName.lastIndexOf(".")+1);
+        else return "";
+    }
+
+    protected Parameters getParameters(Map<String, String> paramMap) throws SvcLogicException {
+        Parameters p = new Parameters();
+        p.fileName = parseParam(paramMap, "fileName", true, null);
+        p.contextPrefix = parseParam(paramMap, "contextPrefix", false, null);
+        return p;
+    }
+
     private String parseParam(Map<String, String> paramMap, String name, boolean required, String def)
             throws SvcLogicException {
         String s = paramMap.get(name);