Merge pull request #561 from geethkokila/release-2.0.x

Adding the fixes for device search

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/search/mgt/QueryBuilder.java

@@ -26,18 +26,18 @@ import java.util.Map;
 
 public interface QueryBuilder {
 
-    Map<String, List<String>> buildQueries(List<Condition> conditions) throws InvalidOperatorException;
+    Map<String, List<QueryHolder>> buildQueries(List<Condition> conditions) throws InvalidOperatorException;
 
-    String processAND(List<Condition> conditions) throws InvalidOperatorException;
+    String processAND(List<Condition> conditions, ValueType[] valueType, Integer intArr[]) throws InvalidOperatorException;
 
-    String processOR(List<Condition> conditions) throws InvalidOperatorException;
+    String processOR(List<Condition> conditions, ValueType[] valueType, Integer intArr[]) throws InvalidOperatorException;
 
-    List<String>  processLocation(Condition condition) throws InvalidOperatorException;
+    List<QueryHolder>  processLocation(Condition condition) throws InvalidOperatorException;
 
-    List<String> processANDProperties(List<Condition> conditions) throws InvalidOperatorException;
+    List<QueryHolder> processANDProperties(List<Condition> conditions) throws InvalidOperatorException;
 
-    List<String> processORProperties(List<Condition> conditions) throws InvalidOperatorException;
+    List<QueryHolder> processORProperties(List<Condition> conditions) throws InvalidOperatorException;
 
-    String processUpdatedDevices(long epochTime) throws InvalidOperatorException;
+    QueryHolder processUpdatedDevices(long epochTime) throws InvalidOperatorException;
 
 }

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/search/mgt/QueryHolder.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 Inc. licenses this file to you 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.
+ */
+
+
+package org.wso2.carbon.device.mgt.core.search.mgt;
+
+public class QueryHolder {
+
+    private String query;
+    private ValueType[] types;
+
+    public String getQuery() {
+        return query;
+    }
+
+    public void setQuery(String query) {
+        this.query = query;
+    }
+
+    public ValueType[] getTypes() {
+        return types;
+    }
+
+    public void setTypes(ValueType[] types) {
+        this.types = types;
+    }
+}
+

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/search/mgt/ValueType.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 Inc. licenses this file to you 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.
+ */
+
+
+package org.wso2.carbon.device.mgt.core.search.mgt;
+
+public class ValueType {
+
+    public enum columnType {
+        STRING,
+        INTEGER,
+        DOUBLE,
+        LONG
+    }
+
+    private String stringValue;
+    private int intValue;
+    private Double doubleValue;
+    private long longValue;
+
+    private columnType columnType;
+
+    public String getStringValue() {
+        return stringValue;
+    }
+
+    public void setStringValue(String stringValue) {
+        this.stringValue = stringValue;
+    }
+
+    public int getIntValue() {
+        return intValue;
+    }
+
+    public void setIntValue(int intValue) {
+        this.intValue = intValue;
+    }
+
+    public Double getDoubleValue() {
+        return doubleValue;
+    }
+
+    public void setDoubleValue(Double doubleValue) {
+        this.doubleValue = doubleValue;
+    }
+
+    public ValueType.columnType getColumnType() {
+        return columnType;
+    }
+
+    public void setColumnType(ValueType.columnType columnType) {
+        this.columnType = columnType;
+    }
+
+    public long getLongValue() {
+        return longValue;
+    }
+
+    public void setLongValue(long longValue) {
+        this.longValue = longValue;
+    }
+}
+

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/search/mgt/impl/ProcessorImpl.java

@@ -62,27 +62,32 @@ public class ProcessorImpl implements Processor {
     @Override
     public List<Device> execute(SearchContext searchContext) throws SearchMgtException {
 
+        if(!Utils.validateOperators(searchContext.getConditions())){
+            throw new SearchMgtException("Invalid validator is provided.");
+        }
+
         QueryBuilder queryBuilder = new QueryBuilderImpl();
         List<Device> generalDevices = new ArrayList<>();
         List<List<Device>> allANDDevices = new ArrayList<>();
         List<List<Device>> allORDevices = new ArrayList<>();
         List<Device> locationDevices = new ArrayList<>();
         try {
-            Map<String, List<String>> queries = queryBuilder.buildQueries(searchContext.getConditions());
             DeviceManagementDAOFactory.openConnection();
+            Map<String, List<QueryHolder>> queries = queryBuilder.buildQueries(searchContext.getConditions());
+
 
             if (queries.containsKey(Constants.GENERAL)) {
                 generalDevices = searchDeviceDetailsTable(queries.get(Constants.GENERAL).get(0));
             }
             if (queries.containsKey(Constants.PROP_AND)) {
-                for (String query : queries.get(Constants.PROP_AND)) {
-                    List<Device> andDevices = searchDeviceDetailsTable(query);
+                for (QueryHolder queryHolder : queries.get(Constants.PROP_AND)) {
+                    List<Device> andDevices = searchDeviceDetailsTable(queryHolder);
                     allANDDevices.add(andDevices);
                 }
             }
             if (queries.containsKey(Constants.PROP_OR)) {
-                for (String query : queries.get(Constants.PROP_OR)) {
-                    List<Device> orDevices = searchDeviceDetailsTable(query);
+                for (QueryHolder queryHolder : queries.get(Constants.PROP_OR)) {
+                    List<Device> orDevices = searchDeviceDetailsTable(queryHolder);
                     allORDevices.add(orDevices);
                 }
             }
@@ -146,7 +151,7 @@ public class ProcessorImpl implements Processor {
         }
         QueryBuilder queryBuilder = new QueryBuilderImpl();
         try {
-            String query =  queryBuilder.processUpdatedDevices(epochTime);
+            QueryHolder query = queryBuilder.processUpdatedDevices(epochTime);
             DeviceManagementDAOFactory.openConnection();
             return searchDeviceDetailsTable(query);
         } catch (InvalidOperatorException e) {
@@ -241,9 +246,9 @@ public class ProcessorImpl implements Processor {
         }
     }
 
-    private List<Device> searchDeviceDetailsTable(String query) throws SearchDAOException {
+    private List<Device> searchDeviceDetailsTable(QueryHolder queryHolder) throws SearchDAOException {
         if (log.isDebugEnabled()) {
-            log.debug("Query : " + query);
+            log.debug("Query : " + queryHolder.getQuery());
         }
         Connection conn;
         PreparedStatement stmt = null;
@@ -252,7 +257,26 @@ public class ProcessorImpl implements Processor {
         Map<Integer, Integer> devs = new HashMap<>();
         try {
             conn = this.getConnection();
-            stmt = conn.prepareStatement(query);
+            stmt = conn.prepareStatement(queryHolder.getQuery());
+
+            int x = 1;
+            ValueType[] types = queryHolder.getTypes();
+            for (ValueType type : types) {
+                if (type.getColumnType().equals(ValueType.columnType.STRING)) {
+                    stmt.setString(x, type.getStringValue());
+                    x++;
+                } else if (type.getColumnType().equals(ValueType.columnType.INTEGER)) {
+                    stmt.setInt(x, type.getIntValue());
+                    x++;
+                } else if (type.getColumnType().equals(ValueType.columnType.LONG)){
+                    stmt.setLong(x, type.getLongValue());
+                    x++;
+                } else  if(type.getColumnType().equals(ValueType.columnType.DOUBLE)){
+                    stmt.setDouble(x, type.getDoubleValue());
+                    x++;
+                }
+            }
+
             rs = stmt.executeQuery();
             while (rs.next()) {
                 if (!devs.containsKey(rs.getInt("ID"))) {

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/search/mgt/impl/QueryBuilderImpl.java

@@ -23,9 +23,7 @@ import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.wso2.carbon.context.PrivilegedCarbonContext;
 import org.wso2.carbon.device.mgt.common.search.Condition;
-import org.wso2.carbon.device.mgt.core.search.mgt.Constants;
-import org.wso2.carbon.device.mgt.core.search.mgt.InvalidOperatorException;
-import org.wso2.carbon.device.mgt.core.search.mgt.QueryBuilder;
+import org.wso2.carbon.device.mgt.core.search.mgt.*;
 
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -41,7 +39,7 @@ public class QueryBuilderImpl implements QueryBuilder {
     private boolean isDeviceAdminUser;
 
     @Override
-    public Map<String, List<String>> buildQueries(List<Condition> conditions) throws InvalidOperatorException {
+    public Map<String, List<QueryHolder>> buildQueries(List<Condition> conditions) throws InvalidOperatorException {
         List<Condition> andColumns = new ArrayList<>();
         List<Condition> orColumns = new ArrayList<>();
         List<Condition> otherANDColumns = new ArrayList<>();
@@ -82,10 +80,27 @@ public class QueryBuilderImpl implements QueryBuilder {
             }
         }
 
-        Map<String, List<String>> queries = new HashMap<>();
+        Map<String, List<QueryHolder>> queries = new HashMap<>();
         if ((!andColumns.isEmpty()) || (!orColumns.isEmpty())) {
-            queries.put(Constants.GENERAL, Utils.convertStringToList(this.getGenericQueryPart() + this.processAND(andColumns) +
-                    this.processOR(orColumns)));
+            // Size is taken as the sum of both columns and for tenant id.
+            ValueType valueTypeArray[] = new ValueType[andColumns.size() + orColumns.size() + 1];
+
+//            String query =Utils.convertStringToList(
+
+            // passing the integer value to the x so that array is correctly passed.
+            Integer intArr[] = new Integer[1];
+            intArr[0] = 1;
+            //int x = 1;
+            String query = this.getGenericQueryPart(valueTypeArray) +
+                    this.processAND(andColumns, valueTypeArray,  intArr) +
+                    this.processOR(orColumns, valueTypeArray,  intArr);
+            List<QueryHolder> queryHolders = new ArrayList<>();
+            QueryHolder queryHolder = new QueryHolder();
+            queryHolder.setQuery(query);
+            queryHolder.setTypes(valueTypeArray);
+            queryHolders.add(queryHolder);
+
+            queries.put(Constants.GENERAL, queryHolders);
         }
         if (!otherANDColumns.isEmpty()) {
             queries.put(Constants.PROP_AND, this.processANDProperties(otherANDColumns));
@@ -108,94 +123,212 @@ public class QueryBuilderImpl implements QueryBuilder {
     }
 
     @Override
-    public String processAND(List<Condition> conditions) throws InvalidOperatorException {
+    public String processAND(List<Condition> conditions, ValueType[] valueType, Integer intArr[]) throws InvalidOperatorException {
         String querySuffix = "";
+        try {
+            // TODO: find upto what address location of the array has filled.
+            int x = intArr[0];
             for (Condition con : conditions) {
                 if (Utils.checkDeviceDetailsColumns(con.getKey())) {
                     if (con.operator.equals(WILDCARD_OPERATOR)) {
                         querySuffix = querySuffix + " OR DD." + Utils.getDeviceDetailsColumnNames().get(con.getKey())
-                            + " LIKE \'%" + con.getValue() + "%\'";
+                                + " LIKE  ? ";
+                        ValueType type = new ValueType();
+                        type.setColumnType(ValueType.columnType.STRING);
+                        type.setStringValue("%"+con.getValue()+"%");
+                        valueType[x] = type;
+                        x++;
                     } else {
                         querySuffix = querySuffix + " AND DD." + Utils.getDeviceDetailsColumnNames().get(con.getKey()) + con
-                            .getOperator() + Utils.getConvertedValue(con.getKey(), con.getValue());
+                                .getOperator() + " ? ";
+                        ValueType type = new ValueType();
+                        if (Utils.checkColumnType(con.getKey())) {
+                            type.setColumnType(ValueType.columnType.STRING);
+                            type.setStringValue(Utils.getConvertedValue(con.getKey(), con.getValue()));
+                        } else {
+                            type.setColumnType(ValueType.columnType.INTEGER);
+                            type.setIntValue(Integer.parseInt(Utils.getConvertedValue(con.getKey(), con.getValue())));
+                        }
+                        valueType[x] = type;
+                        x++;
                     }
                 } else if (Utils.checkDeviceLocationColumns(con.getKey().toLowerCase())) {
                     querySuffix = querySuffix + " AND DL." + Utils.getDeviceLocationColumnNames().get(con.getKey().toLowerCase()) +
-                        con.getOperator() + con.getValue();
+                            con.getOperator() + " ? ";
+                    ValueType type = new ValueType();
+                    type.setColumnType(ValueType.columnType.STRING);
+                    type.setStringValue(con.getValue());
+                    valueType[x] = type;
+                    x++;
                 }
             }
+            intArr[0] = x;
+        } catch (Exception e) {
+            throw new InvalidOperatorException("Error occurred while building the sql", e);
+        }
         return querySuffix;
     }
 
     @Override
-    public String processOR(List<Condition> conditions) throws InvalidOperatorException {
+    public String processOR(List<Condition> conditions, ValueType[] valueType, Integer intArr[]) throws InvalidOperatorException {
         String querySuffix = "";
+        // TODO: find upto what address location of the array has filled.
+        try {
+            int x = intArr[0];
             for (Condition con : conditions) {
                 if (Utils.checkDeviceDetailsColumns(con.getKey())) {
                     if (con.operator.equals(WILDCARD_OPERATOR)) {
                         querySuffix = querySuffix + " OR DD." + Utils.getDeviceDetailsColumnNames().get(con.getKey())
-                            + " LIKE \'%" + con.getValue() + "%\'";
+                                + " LIKE  ? ";
+                        ValueType type = new ValueType();
+                        type.setColumnType(ValueType.columnType.STRING);
+                        type.setStringValue("%"+con.getValue()+"%");
+                        valueType[x] = type;
+                        x++;
                     } else {
                         querySuffix = querySuffix + " OR DD." + Utils.getDeviceDetailsColumnNames().get(con.getKey()) + con
-                            .getOperator() + Utils.getConvertedValue(con.getKey(), con.getValue());
+                                .getOperator() + " ? ";
+
+                        ValueType type = new ValueType();
+                        if (Utils.checkColumnType(con.getKey())) {
+                            type.setColumnType(ValueType.columnType.STRING);
+                            type.setStringValue(Utils.getConvertedValue(con.getKey(), con.getValue()));
+                        } else {
+                            type.setColumnType(ValueType.columnType.INTEGER);
+                            type.setIntValue(Integer.parseInt(Utils.getConvertedValue(con.getKey(), con.getValue())));
+                        }
+                        valueType[x] = type;
+                        x++;
                     }
                 } else if (Utils.checkDeviceLocationColumns(con.getKey().toLowerCase())) {
                     querySuffix =
                             querySuffix + " OR DL." + Utils.getDeviceLocationColumnNames().get(con.getKey().toLowerCase())
-                                + con.getOperator() + con.getValue();
+                                    + con.getOperator() + " ? ";
+                    ValueType type = new ValueType();
+                    type.setColumnType(ValueType.columnType.STRING);
+                    type.setStringValue(con.getValue());
+                    valueType[x] = type;
+                    x++;
                 }
             }
+            intArr[0] = x;
+        } catch (Exception e) {
+            throw new InvalidOperatorException("Error occurred while building the sql", e);
+        }
         return querySuffix;
     }
 
     @Override
-    public List<String> processLocation(Condition condition) throws InvalidOperatorException {
-        List<String> queryList = new ArrayList<>();
-        queryList.add(this.buildLocationQuery(condition.getValue()));
-        return queryList;
+    public List<QueryHolder> processLocation(Condition condition) throws InvalidOperatorException {
+        List<QueryHolder> queryHolders = new ArrayList<>();
+        queryHolders.add(this.buildLocationQuery(condition.getValue()));
+        return queryHolders;
     }
 
     @Override
-    public List<String> processANDProperties(List<Condition> conditions) throws InvalidOperatorException {
+    public List<QueryHolder> processANDProperties(List<Condition> conditions) throws InvalidOperatorException {
         return this.getQueryList(conditions);
     }
 
     @Override
-    public List<String> processORProperties(List<Condition> conditions) throws InvalidOperatorException {
+    public List<QueryHolder> processORProperties(List<Condition> conditions) throws InvalidOperatorException {
         return this.getQueryList(conditions);
     }
 
     @Override
-    public String processUpdatedDevices(long epochTime) throws InvalidOperatorException {
-        return this.getGenericQueryPart() + " AND ( DD.UPDATE_TIMESTAMP > " + epochTime +
-                " OR DL.UPDATE_TIMESTAMP > " + epochTime + " )";
+    public QueryHolder processUpdatedDevices(long epochTime) throws InvalidOperatorException {
+        try {
+            ValueType valueTypeArray[] = new ValueType[3];
+            String query = this.getGenericQueryPart(valueTypeArray) + " AND ( DD.UPDATE_TIMESTAMP > ?  " +
+                    "OR DL.UPDATE_TIMESTAMP >  ? )";
+
+            ValueType val1 = new ValueType();
+            val1.setColumnType(ValueType.columnType.LONG);
+            val1.setLongValue(epochTime);
+            valueTypeArray[1] = val1;
+
+            ValueType val2 = new ValueType();
+            val2.setColumnType(ValueType.columnType.LONG);
+            val2.setLongValue(epochTime);
+            valueTypeArray[2] = val2;
+
+            QueryHolder queryHolder = new QueryHolder();
+            queryHolder.setQuery(query);
+            queryHolder.setTypes(valueTypeArray);
+
+            return queryHolder;
+        } catch (Exception e) {
+            throw new InvalidOperatorException("Error occurred while building the for the updated devices.", e);
+        }
     }
 
-    private List<String> getQueryList(List<Condition> conditions) {
-        List<String> queryList = new ArrayList<>();
+    private List<QueryHolder> getQueryList(List<Condition> conditions) throws InvalidOperatorException {
+        try {
+            List<QueryHolder> queryHolders = new ArrayList<>();
             for (Condition con : conditions) {
 
-            String querySuffix = this.getPropertyQueryPart() + " AND DI.KEY_FIELD = " + "\'" + con.getKey() + "\'" +
-                    " AND DI.VALUE_FIELD " + con.getOperator() + "\'" + con.getValue() + "\'";
-            queryList.add(querySuffix);
+                QueryHolder query = new QueryHolder();
+                ValueType valueTypeArray[] = new ValueType[3];
+
+                String querySuffix = this.getPropertyQueryPart(valueTypeArray) + " AND DI.KEY_FIELD = " + " ? " +
+                        " AND DI.VALUE_FIELD " + con.getOperator() + " ? ";
+                ValueType key = new ValueType();
+                key.setColumnType(ValueType.columnType.STRING);
+                key.setStringValue(con.getKey());
+                valueTypeArray[1] = key;
+
+                ValueType value = new ValueType();
+                value.setColumnType(ValueType.columnType.STRING);
+                value.setStringValue(con.getValue());
+                valueTypeArray[2] = value;
+
+                query.setQuery(querySuffix);
+                query.setTypes(valueTypeArray);
+
+                queryHolders.add(query);
+            }
+            return queryHolders;
+        } catch (Exception e) {
+            throw new InvalidOperatorException("Error occurred while building the sql", e);
         }
-        return queryList;
     }
 
-    private String buildLocationQuery(String location) {
+    private QueryHolder buildLocationQuery(String location) throws InvalidOperatorException {
+        try {
+            ValueType valueTypeArray[] = new ValueType[7];
+            String query = this.getGenericQueryPart(valueTypeArray);
+            query = query + " AND (DL.STREET1 LIKE ? ";
+            query = query + " OR DL.STREET2 LIKE ? ";
+            query = query + " OR DL.CITY LIKE ? ";
+            query = query + " OR DL.STATE LIKE ? ";
+            query = query + " OR DL.COUNTRY LIKE ? ";
+            query = query + " OR DL.ZIP LIKE ? )";
 
-        String query = this.getGenericQueryPart();
-        query = query + " AND (DL.STREET1 LIKE \'%" + location + "%\'";
-        query = query + " OR DL.STREET2 LIKE \'%" + location + "%\'";
-        query = query + " OR DL.CITY LIKE \'%" + location + "%\'";
-        query = query + " OR DL.STATE LIKE \'%" + location + "%\'";
-        query = query + " OR DL.COUNTRY LIKE \'%" + location + "%\'";
-        query = query + " OR DL.ZIP LIKE \'%" + location + "%\')";
-        return query;
+            ValueType value = new ValueType();
+            value.setColumnType(ValueType.columnType.STRING);
+            value.setStringValue("%" + location + "%");
+
+            // Same location is passed to each place
+            valueTypeArray[1] = value;
+            valueTypeArray[2] = value;
+            valueTypeArray[3] = value;
+            valueTypeArray[4] = value;
+            valueTypeArray[5] = value;
+            valueTypeArray[6] = value;
+
+            QueryHolder queryHolder = new QueryHolder();
+            queryHolder.setQuery(query);
+            queryHolder.setTypes(valueTypeArray);
+
+            return queryHolder;
+        } catch (Exception e) {
+            throw new InvalidOperatorException("Error occurred while building the sql for location.", e);
+        }
     }
 
-    private String getGenericQueryPart() {
-        return "SELECT D.ID, D.DESCRIPTION, D.NAME,  \n" +
+    private String getGenericQueryPart(ValueType[] valueTypeArray) throws InvalidOperatorException {
+        try {
+            String query = "SELECT D.ID, D.DESCRIPTION, D.NAME,  \n" +
                     "D.DEVICE_TYPE_ID, D.DEVICE_IDENTIFICATION,  DT.ID AS DEVICE_TYPE_ID, \n" +
                     "DT.NAME AS DEVICE_TYPE_NAME, DD.DEVICE_ID, DD.DEVICE_MODEL, DD.VENDOR, \n" +
                     "DD.OS_VERSION, DD.OS_BUILD_DATE, DD.BATTERY_LEVEL, DD.INTERNAL_TOTAL_MEMORY, DD.INTERNAL_AVAILABLE_MEMORY,\n" +
@@ -207,11 +340,22 @@ public class QueryBuilderImpl implements QueryBuilder {
                     "LEFT JOIN DM_DEVICE_LOCATION AS DL ON DL.DEVICE_ID=D.ID \n" +
                     "INNER JOIN DM_DEVICE_TYPE AS DT ON DT.ID=D.DEVICE_TYPE_ID\n" +
                     "INNER JOIN DM_ENROLMENT AS DE ON D.ID=DE.DEVICE_ID\n" +
-                "WHERE D.TENANT_ID = " + PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+                    "WHERE D.TENANT_ID = ? ";
+
+            ValueType type = new ValueType();
+            type.setIntValue(PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId());
+            type.setColumnType(ValueType.columnType.INTEGER);
+            valueTypeArray[0] = type;
+            return query;
+
+        } catch (Exception e) {
+            throw new InvalidOperatorException("Error occurred while building the sql", e);
+        }
     }
 
-    private String getPropertyQueryPart() {
-        return "SELECT D.ID, D.DESCRIPTION, D.NAME,  \n" +
+    private String getPropertyQueryPart(ValueType[] valueTypeArray) throws InvalidOperatorException {
+        try {
+            String query = "SELECT D.ID, D.DESCRIPTION, D.NAME,  \n" +
                     "D.DEVICE_TYPE_ID, D.DEVICE_IDENTIFICATION,  DT.ID AS DEVICE_TYPE_ID, \n" +
                     "DT.NAME AS DEVICE_TYPE_NAME, DD.DEVICE_ID, DD.DEVICE_MODEL, DD.VENDOR, \n" +
                     "DD.OS_VERSION, DD.OS_BUILD_DATE, DD.BATTERY_LEVEL, DD.INTERNAL_TOTAL_MEMORY, DD.INTERNAL_AVAILABLE_MEMORY,\n" +
@@ -225,7 +369,16 @@ public class QueryBuilderImpl implements QueryBuilder {
                     "INNER JOIN DM_DEVICE_TYPE AS DT ON DT.ID=D.DEVICE_TYPE_ID\n" +
                     "INNER JOIN DM_ENROLMENT AS DE ON D.ID=DE.DEVICE_ID\n" +
                     "LEFT JOIN DM_DEVICE_INFO AS DI ON DI.DEVICE_ID=D.ID\n" +
-                "WHERE D.TENANT_ID = " +
-                PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+                    "WHERE D.TENANT_ID = ? ";
+
+            ValueType type = new ValueType();
+            type.setIntValue(PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId());
+            type.setColumnType(ValueType.columnType.INTEGER);
+            valueTypeArray[0] = type;
+            return query;
+
+        } catch (Exception e) {
+            throw new InvalidOperatorException("Error occurred while building the sql", e);
+        }
     }
 }

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/search/mgt/impl/Utils.java

@@ -20,6 +20,7 @@
 package org.wso2.carbon.device.mgt.core.search.mgt.impl;
 
 import org.wso2.carbon.device.mgt.common.Device;
+import org.wso2.carbon.device.mgt.common.search.Condition;
 
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -31,6 +32,8 @@ public class Utils {
     private static Map<String, String> genericColumnsMap = new HashMap<>();
     private static Map<String, String> locationColumnsMap = new HashMap<>();
 
+    private static Map<String, String> operators = new HashMap<>();
+
     static {
         genericColumnsMap.put("deviceModel", "DEVICE_MODEL");
         genericColumnsMap.put("vendor", "VENDOR");
@@ -58,6 +61,18 @@ public class Utils {
         locationColumnsMap.put("zip", "STATE");
         locationColumnsMap.put("country", "COUNTRY");
 
+        //=, >, <, >=, <=, <>, !=, !>, !<
+        operators.put("=", "=");
+        operators.put(">", ">");
+        operators.put("<", "<");
+        operators.put(">=", ">=");
+        operators.put("<=", "<=");
+        operators.put("<>", "<>");
+        operators.put("!=", "!=");
+        operators.put("!>", "!>");
+        operators.put("!<", "!<");
+        operators.put("%", "%");
+
     }
 
     public static boolean checkColumnType(String column) {
@@ -142,5 +157,15 @@ public class Utils {
         return str.substring(0, str.length() - 1);
     }
 
+
+    public static boolean validateOperators(List<Condition> conditions) {
+        for (Condition con : conditions) {
+            if (!operators.containsKey(con.getOperator())) {
+                return false;
+            }
+        }
+        return true;
+    }
+
 }
 

components/device-mgt/org.wso2.carbon.device.mgt.ui/src/main/resources/jaggeryapps/devicemgt/app/pages/cdmf.page.device.search/public/js/bottomJs.js

@@ -47,7 +47,7 @@ var dynamicForm = '<div class="dynamic-search-param row"><div class="row"><a cla
                   '</option><option value = "vendor">Vendor</option><option value = "osVersion">OS Version' +
                   '</option><option value = "batteryLevel">Battery Level</option><option value =' +
                   ' "internalTotalMemory">Internal Total Memory</option> <option value ="internalAvailableMemory">' +
-                  'Internal Available Memory</option> <option value = "externalTotalMemory">externalTotalMemory</option>' +
+                  'Internal Available Memory</option> <option value = "externalTotalMemory">External Total Memory</option>' +
                   ' <option value = "externalAvailableMemory">External Available Memory' +
                   '</option> <option value = "connectionType">Connection Type</option> <option value =' +
                   ' "ssid">SSID</option><option value = "cpuUsage">CPU Usage</option><option value = "totalRAMMemory">' +
@@ -83,7 +83,7 @@ $(document).ready(function () {
      */
     function getOperators(keyValue) {
         if (nonNumericKeyValuePair.indexOf(keyValue) < 0) {
-            return '<option> =</option><option> !=</option><option> <</option><option> =<</option><option>' +
+            return '<option> =</option><option> !=</option><option> <</option><option> <=</option><option>' +
                 ' ></option><option> >=</option>';
         } else {
             return '<option> =</option><option> !=</option><option><option> %</option>';