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-rw-r--r--aai-traversal/src/main/java/org/onap/aai/rest/QueryConsumer.java91
-rw-r--r--aai-traversal/src/main/java/org/onap/aai/rest/search/CustomQueryConfig.java34
-rw-r--r--aai-traversal/src/main/java/org/onap/aai/rest/search/GenericQueryProcessor.java31
-rw-r--r--aai-traversal/src/main/java/org/onap/aai/rest/search/GetCustomQueryConfig.java159
-rw-r--r--aai-traversal/src/main/java/org/onap/aai/rest/search/GremlinServerSingleton.java67
-rw-r--r--aai-traversal/src/main/java/org/onap/aai/rest/util/ConvertQueryPropertiesToJson.java112
6 files changed, 455 insertions, 39 deletions
diff --git a/aai-traversal/src/main/java/org/onap/aai/rest/QueryConsumer.java b/aai-traversal/src/main/java/org/onap/aai/rest/QueryConsumer.java
index b5f2658..3218396 100644
--- a/aai-traversal/src/main/java/org/onap/aai/rest/QueryConsumer.java
+++ b/aai-traversal/src/main/java/org/onap/aai/rest/QueryConsumer.java
@@ -23,6 +23,7 @@ package org.onap.aai.rest;
import java.net.URI;
import java.util.ArrayList;
+import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
@@ -49,9 +50,12 @@ import org.onap.aai.dbmap.DBConnectionType;
import org.onap.aai.exceptions.AAIException;
import org.onap.aai.introspection.ModelType;
import org.onap.aai.introspection.Version;
+import org.onap.aai.logging.ErrorLogHelper;
import org.onap.aai.parsers.query.QueryParser;
import org.onap.aai.rest.db.HttpEntry;
+import org.onap.aai.rest.search.CustomQueryConfig;
import org.onap.aai.rest.search.GenericQueryProcessor;
+import org.onap.aai.rest.search.GremlinServerSingleton;
import org.onap.aai.rest.search.QueryProcessorType;
import org.onap.aai.restcore.HttpMethod;
import org.onap.aai.restcore.RESTAPI;
@@ -121,7 +125,6 @@ public class QueryConsumer extends RESTAPI {
startURIs.add(new URI(startElement.getAsString()));
}
}
-
if (queryElement != null) {
queryURI = queryElement.getAsString();
}
@@ -129,6 +132,18 @@ public class QueryConsumer extends RESTAPI {
gremlin = gremlinElement.getAsString();
}
URI queryURIObj = new URI(queryURI);
+
+ CustomQueryConfig customQueryConfig = getCustomQueryConfig(queryURIObj);
+ if ( customQueryConfig != null ) {
+ List<String> missingRequiredQueryParameters = checkForMissingQueryParameters( customQueryConfig.getQueryRequiredProperties(), URITools.getQueryMap(queryURIObj));
+ if ( !missingRequiredQueryParameters.isEmpty() ) {
+ return( createMessageMissingQueryRequiredParameters( missingRequiredQueryParameters, headers, info, req));
+ }
+ } else if ( queryElement != null ) {
+ return( createMessageInvalidQuerySection( queryURI, headers, info, req));
+ }
+
+
GenericQueryProcessor processor = null;
if (!startURIs.isEmpty()) {
@@ -193,5 +208,79 @@ public class QueryConsumer extends RESTAPI {
}
+
+ private List<String> checkForMissingQueryParameters( List<String> requiredParameters, MultivaluedMap<String, String> queryParams ) {
+ List<String> result = new ArrayList<>();
+ Iterator it = requiredParameters.iterator();
+ String param;
+ while(it.hasNext()) {
+ param = (String)it.next();
+ if ( !queryParams.containsKey(param)) {
+ result.add(param);
+ }
+ }
+ return result;
+ }
+
+ private CustomQueryConfig getCustomQueryConfig(URI uriObj ) {
+
+ GremlinServerSingleton gremlinServerSingleton;
+ CustomQueryConfig customQueryConfig;
+ String path = uriObj.getPath();
+
+ String[] parts = path.split("/");
+ boolean hasQuery = false;
+ for ( String part:parts ) {
+ if ( hasQuery) {
+ gremlinServerSingleton = GremlinServerSingleton.getInstance();
+ return gremlinServerSingleton.getCustomQueryConfig(part);
+ }
+ if ( "query".equals(part)) {
+ hasQuery = true;
+ }
+ }
+
+ return null;
+
+ }
+
+ private Response createMessageMissingQueryRequiredParameters(List<String> missingRequiredQueryParams, HttpHeaders headers, UriInfo info, HttpServletRequest req) {
+ AAIException e = new AAIException("AAI_3013");
+
+ ArrayList<String> templateVars = new ArrayList<>();
+
+ if (templateVars.isEmpty()) {
+ templateVars.add(missingRequiredQueryParams.toString());
+ }
+ Status s = e.getErrorObject().getHTTPResponseCode();
+ String errorResponse = ErrorLogHelper.getRESTAPIErrorResponse(headers.getAcceptableMediaTypes(), e,
+ templateVars);
+ Response response = Response.status(s).entity(errorResponse).build();
+ /*
+ Response response = Response
+ .status(e.getErrorObject().getHTTPResponseCode())
+ .entity(ErrorLogHelper.getRESTAPIErrorResponse(headers.getAcceptableMediaTypes(), e,
+ templateVars)).build();
+ */
+ return response;
+ }
+
+ private Response createMessageInvalidQuerySection(String invalidQuery, HttpHeaders headers, UriInfo info, HttpServletRequest req) {
+ AAIException e = new AAIException("AAI_3014");
+
+ ArrayList<String> templateVars = new ArrayList<>();
+
+ if (templateVars.isEmpty()) {
+ templateVars.add(invalidQuery);
+ }
+
+ Response response = Response
+ .status(e.getErrorObject().getHTTPResponseCode())
+ .entity(ErrorLogHelper.getRESTAPIErrorResponse(headers.getAcceptableMediaTypes(), e,
+ templateVars)).build();
+
+ return response;
+ }
+
}
diff --git a/aai-traversal/src/main/java/org/onap/aai/rest/search/CustomQueryConfig.java b/aai-traversal/src/main/java/org/onap/aai/rest/search/CustomQueryConfig.java
new file mode 100644
index 0000000..ada67c7
--- /dev/null
+++ b/aai-traversal/src/main/java/org/onap/aai/rest/search/CustomQueryConfig.java
@@ -0,0 +1,34 @@
+package org.onap.aai.rest.search;
+
+import java.util.List;
+
+public class CustomQueryConfig {
+ public CustomQueryConfig() {
+ // used by GetCustomQueryConfig
+ }
+
+
+ private String query;
+ private List<String> queryOptionalProperties;
+ private List<String> queryRequiredProperties;
+
+ public void setQuery(String query) {
+ this.query = query;
+ }
+ public String getQuery() {
+ return this.query;
+ }
+
+ public void setQueryOptionalProperties( List<String> queryOptionalProperties) {
+ this.queryOptionalProperties = queryOptionalProperties;
+ }
+ public List<String> getQueryOptionalProperties( ) {
+ return queryOptionalProperties;
+ }
+ public void setQueryRequiredProperties( List<String> queryRequiredProperties) {
+ this.queryRequiredProperties = queryRequiredProperties;
+ }
+ public List<String> getQueryRequiredProperties( ) {
+ return queryRequiredProperties;
+ }
+}
diff --git a/aai-traversal/src/main/java/org/onap/aai/rest/search/GenericQueryProcessor.java b/aai-traversal/src/main/java/org/onap/aai/rest/search/GenericQueryProcessor.java
index 9f6f3aa..14e218f 100644
--- a/aai-traversal/src/main/java/org/onap/aai/rest/search/GenericQueryProcessor.java
+++ b/aai-traversal/src/main/java/org/onap/aai/rest/search/GenericQueryProcessor.java
@@ -2,7 +2,7 @@
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
- * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * 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.
@@ -25,6 +25,7 @@ import java.io.FileNotFoundException;
import java.net.URI;
import java.util.ArrayList;
import java.util.Collection;
+import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@@ -42,6 +43,7 @@ import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.__;
import org.apache.tinkerpop.gremlin.structure.Graph;
import org.apache.tinkerpop.gremlin.structure.Vertex;
import org.javatuples.Pair;
+import org.onap.aai.query.builder.MissingOptionalParameter;
import org.onap.aai.restcore.util.URITools;
import org.onap.aai.serialization.engines.TransactionalGraphEngine;
import org.onap.aai.serialization.queryformats.SubGraphStyle;
@@ -117,28 +119,41 @@ public abstract class GenericQueryProcessor {
if (!this.isGremlin) {
Matcher m = p.matcher(uri.get().getPath());
String queryName = "";
+ List<String> optionalParameters = Collections.emptyList();
if (m.find()) {
queryName = m.group(1);
+ CustomQueryConfig queryConfig = gremlinServerSingleton.getCustomQueryConfig(queryName);
+ if ( queryConfig != null ) {
+ query = queryConfig.getQuery();
+ optionalParameters = queryConfig.getQueryOptionalProperties();
+ }
}
-
+
for (String key : queryParams.keySet()) {
params.put(key, queryParams.getFirst(key));
+ if ( optionalParameters.contains(key) ){
+ optionalParameters.remove(key);
+ }
}
- query = gremlinServerSingleton.getStoredQuery(queryName);
- if (query == null) {
- query = "";
- } else {
- query = queryBuilderSingleton.executeTraversal(dbEngine, query, params);
+ if (!optionalParameters.isEmpty()){
+ MissingOptionalParameter missingParameter = MissingOptionalParameter.getInstance();
+ for ( String key : optionalParameters ) {
+ params.put(key, missingParameter);
+ }
}
-
List<Object> ids = new ArrayList<>();
if (vertices.isPresent() && !vertices.get().isEmpty()) {
for (Vertex v : vertices.get()) {
ids.add(v.id());
}
+ if (query == null) {
+ query = "";
+ } else {
+ query = queryBuilderSingleton.executeTraversal(dbEngine, query, params);
+ }
StringBuilder sb = new StringBuilder();
sb.append("[");
sb.append(Joiner.on(",").join(ids));
diff --git a/aai-traversal/src/main/java/org/onap/aai/rest/search/GetCustomQueryConfig.java b/aai-traversal/src/main/java/org/onap/aai/rest/search/GetCustomQueryConfig.java
new file mode 100644
index 0000000..9ea0b1d
--- /dev/null
+++ b/aai-traversal/src/main/java/org/onap/aai/rest/search/GetCustomQueryConfig.java
@@ -0,0 +1,159 @@
+package org.onap.aai.rest.search;
+
+/*-
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * 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=========================================================
+ */
+
+import java.io.IOException;
+import java.lang.reflect.Type;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.List;
+
+import org.onap.aai.util.AAIConstants;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import com.google.gson.reflect.TypeToken;
+
+public class GetCustomQueryConfig {
+
+ private JsonArray storedQueries = null;
+ private CustomQueryConfig customQueryConfig;
+
+
+ private final static String QUERY_CONFIG = "query";
+ private final static String REQUIRED_CONFIG = "required-properties";
+ private final static String OPTIONAL_CONFIG = "optional-properties";
+ private final static String STORED_QUERIES_CONFIG = "stored-queries";
+ private final static String STORED_QUERY_CONFIG = "stored-query";
+
+ public static final String AAI_HOME_ETC_QUERY_JSON = AAIConstants.AAI_HOME_ETC + "query" + AAIConstants.AAI_FILESEP + "stored-queries.json";
+
+ public GetCustomQueryConfig(String customQueryJson ) {
+ init(customQueryJson);
+ }
+
+ private void init( String customQueryJson) {
+ JsonParser parser = new JsonParser();
+ JsonObject queriesObject = parser.parse(customQueryJson).getAsJsonObject();
+ if (queriesObject.has(STORED_QUERIES_CONFIG)) {
+
+ storedQueries = queriesObject.getAsJsonArray(STORED_QUERIES_CONFIG);
+ }
+ }
+
+ private List<String> toStringList(JsonArray array) {
+ Gson converter = new Gson();
+ Type listType = new TypeToken<List<String>>() {}.getType();
+ return converter.fromJson(array, listType);
+ }
+
+ private List<String> getPropertyList(JsonObject configObject, String config ) {
+ JsonElement subqueryConfig;
+ JsonArray props;
+
+ if ( configObject.has(config)) {
+ subqueryConfig = configObject.get(config);
+ if ( subqueryConfig != null && !subqueryConfig.isJsonNull() ) {
+ props = subqueryConfig.getAsJsonArray();
+ if ( props != null ) {
+ return toStringList(props);
+ }
+ }
+ }
+ return toStringList(null);
+ }
+
+ private String getPropertyString(JsonObject configObject, String config) {
+ JsonElement subqueryConfig;
+
+ if ( configObject.has(config)) {
+ subqueryConfig = configObject.get(config);
+ if ( subqueryConfig != null && !subqueryConfig.isJsonNull() ) {
+ return subqueryConfig.getAsString();
+ }
+ }
+ return null;
+ }
+
+ private void getStoredQueryBlock( JsonObject configObject, String config ) {
+ if ( !configObject.has(config)) {
+ return;
+ }
+
+ JsonElement queryConfig;
+ JsonObject subObject;
+ String multipleStartNodes;
+ List<String> propertyList;
+
+ queryConfig = configObject.get(config);
+ subObject = queryConfig.getAsJsonObject();
+ propertyList = getPropertyList(subObject, REQUIRED_CONFIG);
+ if ( QUERY_CONFIG.equals(config)) {
+ customQueryConfig.setQueryRequiredProperties( propertyList );
+ } else {
+ customQueryConfig.setQueryRequiredProperties( null );
+ }
+
+ propertyList = getPropertyList(subObject, OPTIONAL_CONFIG);
+ if ( QUERY_CONFIG.equals(config)) {
+ customQueryConfig.setQueryOptionalProperties( propertyList );
+ } else {
+ customQueryConfig.setQueryOptionalProperties( null );
+ }
+
+ }
+
+
+ public CustomQueryConfig getStoredQuery(String queryName ) {
+
+ customQueryConfig = null;
+ JsonObject configObject;
+ JsonElement query;
+ JsonElement queryConfig;
+ String queryString;
+
+ for (JsonElement storedQuery : storedQueries) {
+ if (storedQuery.isJsonObject()) {
+ JsonObject queryObject = storedQuery.getAsJsonObject();
+ query = queryObject.get(queryName);
+ if ( query != null ) {
+ customQueryConfig = new CustomQueryConfig();
+ configObject = query.getAsJsonObject();
+ getStoredQueryBlock(configObject, QUERY_CONFIG);
+ if ( configObject.has(STORED_QUERY_CONFIG)) {
+ queryConfig = configObject.get(STORED_QUERY_CONFIG);
+ customQueryConfig.setQuery(queryConfig.getAsString());
+ }
+ break;
+ }
+ }
+ }
+
+ return customQueryConfig;
+
+ }
+
+
+
+}
diff --git a/aai-traversal/src/main/java/org/onap/aai/rest/search/GremlinServerSingleton.java b/aai-traversal/src/main/java/org/onap/aai/rest/search/GremlinServerSingleton.java
index e4ac815..2265680 100644
--- a/aai-traversal/src/main/java/org/onap/aai/rest/search/GremlinServerSingleton.java
+++ b/aai-traversal/src/main/java/org/onap/aai/rest/search/GremlinServerSingleton.java
@@ -31,6 +31,9 @@ import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
import java.util.Date;
import java.util.Properties;
import java.util.Timer;
@@ -43,7 +46,10 @@ public class GremlinServerSingleton {
private Cluster cluster;
private boolean timerSet;
private Timer timer;
- private Properties properties;
+
+
+ private GetCustomQueryConfig queryConfig;
+
private static class Helper {
private static final GremlinServerSingleton INSTANCE = new GremlinServerSingleton();
@@ -68,8 +74,6 @@ public class GremlinServerSingleton {
*/
private void init() {
- properties = new Properties();
-
try {
cluster = Cluster.build(new File(AAIConstants.AAI_HOME_ETC_APP_PROPERTIES + "gremlin-server-config.yaml"))
.maxContentLength(6537920)
@@ -78,27 +82,29 @@ public class GremlinServerSingleton {
logger.error("Unable to find the file: " + e);
}
- File queryFile = new File(AAIConstants.AAI_HOME_ETC_QUERY);
+ try {
+ String filepath = GetCustomQueryConfig.AAI_HOME_ETC_QUERY_JSON;
+ Path path = Paths.get(filepath);
+ String customQueryConfigJson = new String(Files.readAllBytes(path));
+
- try (FileInputStream fis = new FileInputStream(queryFile)){
- properties.load(fis);
- } catch (IOException e) {
- logger.error("Error occurred during the processing of query file: " + e);
- }
+ queryConfig = new GetCustomQueryConfig(customQueryConfigJson);
+ } catch (IOException e) {
+ logger.error("Error occurred during the processing of query json file: " + e);
+ }
- TimerTask task = new FileWatcher(new File(AAIConstants.AAI_HOME_ETC_QUERY)) {
+ TimerTask task = new FileWatcher(new File(GetCustomQueryConfig.AAI_HOME_ETC_QUERY_JSON)) {
@Override
protected void onChange(File file) {
- File queryFile = new File(AAIConstants.AAI_HOME_ETC_QUERY);
- try (FileInputStream fis = new FileInputStream(queryFile)){
- properties.load(fis);
- logger.debug("File: " + file + " was changed so the cluster is rebuild for gremlin server");
- } catch (FileNotFoundException e) {
- logger.error("Unable to find the file: " + e);
- } catch (IOException e) {
- logger.error("Error occurred during the processing of query file: " + e);
- }
+ try {
+ String filepath = GetCustomQueryConfig.AAI_HOME_ETC_QUERY_JSON;
+ Path path = Paths.get(filepath);
+ String customQueryConfigJson = new String(Files.readAllBytes(path));
+ queryConfig = new GetCustomQueryConfig(customQueryConfigJson);
+ } catch (IOException e) {
+ logger.error("Error occurred during the processing of query json file: " + e);
+ }
}
};
@@ -113,19 +119,20 @@ public class GremlinServerSingleton {
public Cluster getCluster(){
return cluster;
}
-
+
/**
- * Gets the key if the properties contains that key
- *
- * Purposely not checking if the property exists due
- * to if you check for the property and then get the property
- * Then you are going to have to synchronize the method
- *
- * @param key the query to check if it exists in the file
- * @return string if the key exists or null if it doesn't
+ * Gets the query using CustomQueryConfig
+ * @param key
+ * @return
*/
- public String getStoredQuery(String key){
- return (String) properties.get(key);
+ public String getStoredQueryFromConfig(String key){
+ CustomQueryConfig customQueryConfig = queryConfig.getStoredQuery(key);
+ return customQueryConfig.getQuery();
}
+
+ public CustomQueryConfig getCustomQueryConfig(String key) {
+ return queryConfig.getStoredQuery(key);
+ }
+
}
diff --git a/aai-traversal/src/main/java/org/onap/aai/rest/util/ConvertQueryPropertiesToJson.java b/aai-traversal/src/main/java/org/onap/aai/rest/util/ConvertQueryPropertiesToJson.java
new file mode 100644
index 0000000..780a5de
--- /dev/null
+++ b/aai-traversal/src/main/java/org/onap/aai/rest/util/ConvertQueryPropertiesToJson.java
@@ -0,0 +1,112 @@
+package org.onap.aai.rest.util;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Properties;
+
+
+import org.onap.aai.util.AAIConstants;
+
+public class ConvertQueryPropertiesToJson {
+
+ private final static int maxfilesize = 256000;
+
+ private void addStart( StringBuilder sb ) {
+ sb.append("{\n \"stored-queries\":[{\n");
+ }
+
+ private void addRequiredQueryProperties( StringBuilder sb, List<String> rqd ) {
+ Iterator it = rqd.iterator();
+ sb.append(" \"query\":{\n \"required-properties\":[");
+ while( it.hasNext()) {
+ sb.append("\"" + it.next() + "\"");
+ if ( it.hasNext()) {
+ sb.append(",");
+ }
+ }
+ sb.append("]\n },\n");
+ }
+
+ private void addAnotherQuery( StringBuilder sb, String queryName, String query, List<String> rqd ) {
+ sb.append(" \"" + queryName + "\":{\n");
+ if ( !rqd.isEmpty()) {
+ addRequiredQueryProperties( sb, rqd);
+ }
+ sb.append(" \"stored-query\":\"" + query + "\"\n }\n },{\n");
+ }
+
+ private void addLastQuery( StringBuilder sb, String queryName, String query, List<String> rqd ) {
+ sb.append(" \"" + queryName + "\":{\n");
+ if ( !rqd.isEmpty() ) {
+ addRequiredQueryProperties( sb, rqd);
+ }
+ sb.append(" \"stored-query\":\"" + query + "\"\n }\n }]\n}\n");
+ }
+
+ private String get2ndParameter( String paramString) {
+ String endParams = paramString.substring(0, paramString.indexOf(')'));
+ String result = endParams.substring(endParams.indexOf(',') + 1 );
+ String lastParam = result.trim();
+ if ( lastParam.startsWith("\\") || lastParam.startsWith("'") || lastParam.startsWith("new ") ){
+ return null;
+ }
+
+ return lastParam;
+ }
+
+ private List<String> findRqdProperties( String query) {
+ String[] parts = query.split("getVerticesByProperty");
+ List<String> result = new ArrayList<String>();
+ if ( parts.length == 1 )
+ return result;
+ int count = 0;
+ String foundRqdProperty;
+ while ( count++ < parts.length - 1 ) {
+ foundRqdProperty = get2ndParameter(parts[count]);
+ if ( foundRqdProperty != null && !result.contains(foundRqdProperty)) {
+ result.add(foundRqdProperty);
+ }
+ }
+ return result;
+ }
+
+ public String convertProperties( Properties props ) {
+ Enumeration<?> e = props.propertyNames();
+ StringBuilder sb = new StringBuilder(maxfilesize);
+ String queryName;
+ String query;
+ addStart( sb );
+ List<String> rqd;
+ while ( e.hasMoreElements()) {
+ queryName = (String)e.nextElement();
+ query = props.getProperty(queryName).trim().replace("\"", "\\\"");
+ rqd = findRqdProperties( query);
+ if ( e.hasMoreElements()) {
+ addAnotherQuery( sb, queryName, query, rqd);
+ } else {
+ addLastQuery( sb, queryName, query, rqd);
+ }
+ }
+
+ return sb.toString();
+ }
+ public static void main(String[] args) {
+ File queryFile = new File(AAIConstants.AAI_HOME_ETC_QUERY);
+ Properties properties = new Properties();
+ try (FileInputStream fis = new FileInputStream(queryFile)){
+ properties.load(fis);
+ } catch (IOException e) {
+ e.printStackTrace();
+ System.out.println("Error occurred during the processing of query file: " + e);
+ }
+ ConvertQueryPropertiesToJson c = new ConvertQueryPropertiesToJson();
+ String json = c.convertProperties(properties);
+ System.out.println("returned json:\n" + json);
+ }
+
+}