Refactoring

components/application-mgt/org.wso2.carbon.device.application.mgt.api/src/main/java/org/wso2/carbon/device/application/mgt/api/services/ApplicationManagementAPI.java

@@ -34,12 +34,23 @@ import org.wso2.carbon.device.application.mgt.api.beans.ErrorResponse;
 import org.wso2.carbon.device.application.mgt.common.Application;
 import org.wso2.carbon.device.application.mgt.common.ApplicationList;
 
+import java.util.List;
 import javax.validation.Valid;
-import javax.ws.rs.*;
+import javax.ws.rs.Consumes;
+import javax.ws.rs.DELETE;
+import javax.ws.rs.GET;
+import javax.ws.rs.POST;
+import javax.ws.rs.PUT;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.QueryParam;
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
-import java.util.List;
 
+/**
+ * APIs to handle application management related tasks.
+ */
 @SwaggerDefinition(
         info = @Info(
                 version = "1.0.0",
@@ -98,7 +109,7 @@ import java.util.List;
 @Consumes(MediaType.APPLICATION_JSON)
 public interface ApplicationManagementAPI {
 
-    public final static String SCOPE = "scope";
+    String SCOPE = "scope";
 
     @GET
     @Produces(MediaType.APPLICATION_JSON)
@@ -124,8 +135,8 @@ public interface ApplicationManagementAPI {
                             response = ApplicationList.class),
                     @ApiResponse(
                             code = 304,
-                            message = "Not Modified. \n " +
+                            message = "Not Modified. Empty body because the client already has the latest version "
-                                    "Empty body because the client already has the latest version of the requested resource."),
+                                    + "of the requested resource."),
                     @ApiResponse(
                             code = 500,
                             message = "Internal Server Error. \n Error occurred while getting the application list.",
@@ -134,21 +145,15 @@ public interface ApplicationManagementAPI {
     Response getApplications(
             @ApiParam(
                     name = "offset",
-                    value = "Provide from which position apps should return",
+                    value = "Provide from which position apps should return", defaultValue = "20")
-                    required = false,
-                    defaultValue = "20")
             @QueryParam("offset") int offset,
             @ApiParam(
                     name = "limit",
-                    value = "Provide how many apps it should return",
+                    value = "Provide how many apps it should return", defaultValue = "0")
-                    required = false,
-                    defaultValue = "0")
             @QueryParam("limit") int limit,
             @ApiParam(
                     name = "searchQuery",
-                    value = "Relevant search query to search on",
+                    value = "Relevant search query to search on", defaultValue = "*")
-                    required = false,
-                    defaultValue = "*")
             @QueryParam("searchQuery") String searchQuery
     );
 

components/application-mgt/org.wso2.carbon.device.application.mgt.api/src/main/java/org/wso2/carbon/device/application/mgt/api/services/impl/ApplicationManagementAPIImpl.java

@@ -25,7 +25,6 @@ import org.wso2.carbon.device.application.mgt.api.services.ApplicationManagement
 import org.wso2.carbon.device.application.mgt.common.Application;
 import org.wso2.carbon.device.application.mgt.common.ApplicationList;
 import org.wso2.carbon.device.application.mgt.common.Filter;
-import org.wso2.carbon.device.application.mgt.common.User;
 import org.wso2.carbon.device.application.mgt.common.exception.ApplicationManagementException;
 import org.wso2.carbon.device.application.mgt.common.services.ApplicationManager;
 import org.wso2.carbon.device.application.mgt.core.util.Constants;
@@ -43,7 +42,9 @@ import javax.ws.rs.Produces;
 import javax.ws.rs.QueryParam;
 import javax.ws.rs.core.Response;
 
-
+/**
+ * Implementation of Application Management related APIs.
+ */
 @Produces({"application/json"})
 @Consumes({"application/json"})
 @Path("/applications")

components/application-mgt/org.wso2.carbon.device.application.mgt.api/src/main/java/org/wso2/carbon/device/application/mgt/api/services/impl/LifecycleManagementAPIImpl.java

@@ -22,16 +22,12 @@ import org.apache.commons.logging.LogFactory;
 import org.wso2.carbon.device.application.mgt.api.APIUtil;
 import org.wso2.carbon.device.application.mgt.api.services.LifecycleManagementAPI;
 import org.wso2.carbon.device.application.mgt.common.LifecycleState;
-import org.wso2.carbon.device.application.mgt.common.User;
-import org.wso2.carbon.device.application.mgt.common.exception.ApplicationManagementException;
 import org.wso2.carbon.device.application.mgt.common.exception.LifecycleManagementException;
-import org.wso2.carbon.device.application.mgt.common.services.ApplicationManager;
 import org.wso2.carbon.device.application.mgt.common.services.LifecycleStateManager;
 
 import javax.ws.rs.DELETE;
 import javax.ws.rs.GET;
 import javax.ws.rs.POST;
-import javax.ws.rs.PUT;
 import javax.ws.rs.Path;
 import javax.ws.rs.PathParam;
 import javax.ws.rs.core.Response;

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/config/Configuration.java

@@ -18,13 +18,14 @@
  */
 package org.wso2.carbon.device.application.mgt.core.config;
 
-import org.wso2.carbon.device.application.mgt.core.deployer.Platform;
+import java.util.List;
-
 import javax.xml.bind.annotation.XmlElement;
 import javax.xml.bind.annotation.XmlElementWrapper;
 import javax.xml.bind.annotation.XmlRootElement;
-import java.util.List;
 
+/**
+ * Represents the Application Management Configuration.
+ */
 @XmlRootElement(name = "ApplicationManagementConfiguration")
 public class Configuration {
 

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/config/ConfigurationManager.java

@@ -24,10 +24,13 @@ import org.wso2.carbon.device.application.mgt.common.exception.ApplicationManage
 import org.wso2.carbon.device.application.mgt.common.exception.InvalidConfigurationException;
 import org.wso2.carbon.device.application.mgt.core.util.Constants;
 
+import java.io.File;
 import javax.xml.bind.JAXBContext;
 import javax.xml.bind.Unmarshaller;
-import java.io.File;
 
+/**
+ * ConfigurationManager is responsible for the managing Application Management related configurations.
+ */
 public class ConfigurationManager {
 
     private static final Log log = LogFactory.getLog(ConfigurationManager.class);

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/config/Extension.java

@@ -18,9 +18,15 @@
  */
 package org.wso2.carbon.device.application.mgt.core.config;
 
-import javax.xml.bind.annotation.*;
 import java.util.List;
+import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlElementWrapper;
+import javax.xml.bind.annotation.XmlRootElement;
 
+/**
+ * Represents a extension in the application management configuration.
+ */
 @XmlRootElement(name = "Extension")
 public class Extension {
 
@@ -68,6 +74,9 @@ public class Extension {
         return false;
     }
 
+    /**
+     * ApplicationManagement Extensions.
+     */
     public enum Name {
         ApplicationManager,
         ApplicationReleaseManager,

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/config/Parameter.java

@@ -22,6 +22,9 @@ import javax.xml.bind.annotation.XmlAttribute;
 import javax.xml.bind.annotation.XmlRootElement;
 import javax.xml.bind.annotation.XmlValue;
 
+/**
+ * Parameter of the extensions.
+ */
 @XmlRootElement(name = "Parameter")
 public class Parameter {
 

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/dao/ApplicationReleaseDAO.java

@@ -18,6 +18,9 @@
  */
 package org.wso2.carbon.device.application.mgt.core.dao;
 
+/**
+ * This is responsible for Application Release related DAO operations.
+ */
 public interface ApplicationReleaseDAO {
 
 }

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/dao/CategoryDAO.java

@@ -18,5 +18,8 @@
  */
 package org.wso2.carbon.device.application.mgt.core.dao;
 
+/**
+ * This is responsible for Application Category related DAO operations.
+ */
 public interface CategoryDAO {
 }

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/dao/common/Util.java

@@ -21,7 +21,12 @@ package org.wso2.carbon.device.application.mgt.core.dao.common;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.json.JSONException;
-import org.wso2.carbon.device.application.mgt.common.*;
+import org.wso2.carbon.device.application.mgt.common.Application;
+import org.wso2.carbon.device.application.mgt.common.Category;
+import org.wso2.carbon.device.application.mgt.common.Lifecycle;
+import org.wso2.carbon.device.application.mgt.common.LifecycleState;
+import org.wso2.carbon.device.application.mgt.common.Platform;
+import org.wso2.carbon.device.application.mgt.common.User;
 import org.wso2.carbon.device.application.mgt.core.util.JSONUtil;
 
 import java.sql.PreparedStatement;

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/dao/impl/application/GenericApplicationDAOImpl.java

@@ -21,21 +21,34 @@ package org.wso2.carbon.device.application.mgt.core.dao.impl.application;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.json.JSONException;
-import org.wso2.carbon.device.application.mgt.common.*;
+import org.wso2.carbon.device.application.mgt.common.Application;
+import org.wso2.carbon.device.application.mgt.common.ApplicationList;
+import org.wso2.carbon.device.application.mgt.common.ApplicationRelease;
+import org.wso2.carbon.device.application.mgt.common.Filter;
+import org.wso2.carbon.device.application.mgt.common.LifecycleStateTransition;
+import org.wso2.carbon.device.application.mgt.common.Pagination;
 import org.wso2.carbon.device.application.mgt.common.exception.DBConnectionException;
 import org.wso2.carbon.device.application.mgt.core.dao.ApplicationDAO;
+import org.wso2.carbon.device.application.mgt.core.dao.common.Util;
 import org.wso2.carbon.device.application.mgt.core.dao.impl.AbstractDAOImpl;
 import org.wso2.carbon.device.application.mgt.core.exception.ApplicationManagementDAOException;
-import org.wso2.carbon.device.application.mgt.core.dao.common.Util;
 import org.wso2.carbon.device.application.mgt.core.util.ConnectionManagerUtil;
 import org.wso2.carbon.device.application.mgt.core.util.JSONUtil;
 
-import java.sql.*;
+import java.sql.Connection;
+import java.sql.Date;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 
+/**
+ * This handles ApplicationDAO related operations.
+ */
 public class GenericApplicationDAOImpl extends AbstractDAOImpl implements ApplicationDAO {
 
     private static final Log log = LogFactory.getLog(GenericApplicationDAOImpl.class);
@@ -78,8 +91,7 @@ public class GenericApplicationDAOImpl extends AbstractDAOImpl implements Applic
             stmt.setInt(14, application.getPlatform().getId());
             stmt.setInt(15, application.getUser().getTenantId());
             stmt.setInt(16, application.getCurrentLifecycle().getLifecycleState().getId());
-            stmt.setDate(17, new Date(
+            stmt.setDate(17, new Date(application.getCurrentLifecycle().getLifecycleStateModifiedAt().getTime()));
-                    application.getCurrentLifecycle().getLifecycleStateModifiedAt().getTime()));
             stmt.setString(18, application.getCurrentLifecycle().getGetLifecycleStateModifiedBy());
             stmt.executeUpdate();
 
@@ -88,6 +100,7 @@ public class GenericApplicationDAOImpl extends AbstractDAOImpl implements Applic
                 application.setId(rs.getInt(1));
             }
             insertApplicationTagsAndProperties(application, stmt, conn, isBatchExecutionSupported);
+            return application;
         } catch (DBConnectionException e) {
             throw new ApplicationManagementDAOException("Error occurred while obtaining the DB connection.", e);
         } catch (SQLException e) {
@@ -95,8 +108,6 @@ public class GenericApplicationDAOImpl extends AbstractDAOImpl implements Applic
         } finally {
             Util.cleanupResources(stmt, rs);
         }
-
-        return application;
     }
 
 
@@ -276,9 +287,10 @@ public class GenericApplicationDAOImpl extends AbstractDAOImpl implements Applic
                 Util.cleanupResources(null, rsProperties);
                 Util.cleanupResources(null, rsTags);
             }
+            return application;
         } catch (SQLException e) {
-            throw new ApplicationManagementDAOException("Error occurred while getting application details with UUID "
+            throw new ApplicationManagementDAOException(
-                    + uuid, e);
+                    "Error occurred while getting application details with UUID " + uuid, e);
         } catch (JSONException e) {
             throw new ApplicationManagementDAOException("Error occurred while parsing JSON", e);
         } catch (DBConnectionException e) {
@@ -286,7 +298,6 @@ public class GenericApplicationDAOImpl extends AbstractDAOImpl implements Applic
         } finally {
             Util.cleanupResources(stmt, rs);
         }
-        return application;
     }
 
     @Override
@@ -361,9 +372,8 @@ public class GenericApplicationDAOImpl extends AbstractDAOImpl implements Applic
 
     @Override
     public Application editApplication(Application application, int tenantId) throws ApplicationManagementDAOException {
-        Connection conn = null;
+        Connection conn;
         PreparedStatement stmt = null;
-        ResultSet rs = null;
         String sql = "";
         boolean isBatchExecutionSupported = ConnectionManagerUtil.isBatchQuerySupported();
         try {
@@ -431,13 +441,14 @@ public class GenericApplicationDAOImpl extends AbstractDAOImpl implements Applic
             stmt.executeUpdate();
 
             insertApplicationTagsAndProperties(application, stmt, conn, isBatchExecutionSupported);
+            return application;
         } catch (DBConnectionException e) {
             throw new ApplicationManagementDAOException("Error occurred while obtaining the DB connection.", e);
         } catch (SQLException e) {
             throw new ApplicationManagementDAOException("Error occurred while adding the application", e);
+        } finally {
+            Util.cleanupResources(stmt, null);
         }
-
-        return application;
     }
 
     /**
@@ -509,7 +520,7 @@ public class GenericApplicationDAOImpl extends AbstractDAOImpl implements Applic
 
     @Override
     public void deleteProperties(int applicationId) throws ApplicationManagementDAOException {
-        Connection conn = null;
+        Connection conn;
         PreparedStatement stmt = null;
         try {
             conn = this.getDBConnection();
@@ -530,10 +541,8 @@ public class GenericApplicationDAOImpl extends AbstractDAOImpl implements Applic
 
     @Override
     public void deleteTags(int applicationId) throws ApplicationManagementDAOException {
-
+        Connection conn;
-        Connection conn = null;
         PreparedStatement stmt = null;
-        ResultSet rs = null;
         try {
             conn = this.getDBConnection();
             String sql = "DELETE FROM APPM_APPLICATION_TAG WHERE APPLICATION_ID = ?";
@@ -547,7 +556,7 @@ public class GenericApplicationDAOImpl extends AbstractDAOImpl implements Applic
             throw new ApplicationManagementDAOException(
                     "Error occurred while deleting tags of application: " + applicationId, e);
         } finally {
-            Util.cleanupResources(stmt, rs);
+            Util.cleanupResources(stmt, null);
         }
     }
 
@@ -556,13 +565,11 @@ public class GenericApplicationDAOImpl extends AbstractDAOImpl implements Applic
         Connection conn = null;
         PreparedStatement stmt = null;
         ResultSet rs = null;
-        String sql = "";
+        String sql;
-
         int id = 0;
-
         try {
             conn = this.getDBConnection();
-            sql += "SELECT ID FROM APPM_APPLICATION WHERE UUID = ?";
+            sql = "SELECT ID FROM APPM_APPLICATION WHERE UUID = ?";
             stmt = conn.prepareStatement(sql);
             stmt.setString(1, uuid);
             rs = stmt.executeQuery();
@@ -576,7 +583,6 @@ public class GenericApplicationDAOImpl extends AbstractDAOImpl implements Applic
         } finally {
             Util.cleanupResources(stmt, rs);
         }
-
         return id;
     }
 

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/util/ApplicationManagementUtil.java

@@ -21,12 +21,25 @@ package org.wso2.carbon.device.application.mgt.core.util;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.wso2.carbon.device.application.mgt.common.exception.InvalidConfigurationException;
-import org.wso2.carbon.device.application.mgt.common.services.*;
+import org.wso2.carbon.device.application.mgt.common.services.ApplicationManager;
+import org.wso2.carbon.device.application.mgt.common.services.ApplicationReleaseManager;
+import org.wso2.carbon.device.application.mgt.common.services.ApplicationUploadManager;
+import org.wso2.carbon.device.application.mgt.common.services.CategoryManager;
+import org.wso2.carbon.device.application.mgt.common.services.CommentsManager;
+import org.wso2.carbon.device.application.mgt.common.services.LifecycleStateManager;
+import org.wso2.carbon.device.application.mgt.common.services.PlatformManager;
+import org.wso2.carbon.device.application.mgt.common.services.SubscriptionManager;
+import org.wso2.carbon.device.application.mgt.common.services.VisibilityManager;
+import org.wso2.carbon.device.application.mgt.common.services.VisibilityTypeManager;
 import org.wso2.carbon.device.application.mgt.core.config.ConfigurationManager;
 import org.wso2.carbon.device.application.mgt.core.config.Extension;
 
 import java.lang.reflect.Constructor;
 
+/**
+ * This Util class is responsible for making sure single instance of each Extension Manager is used throughout for
+ * all the tasks.
+ */
 public class ApplicationManagementUtil {
 
     private static Log log = LogFactory.getLog(ApplicationManagementUtil.class);
@@ -37,7 +50,8 @@ public class ApplicationManagementUtil {
         return getInstance(extension, ApplicationManager.class);
     }
 
-    public static ApplicationReleaseManager getApplicationReleaseManagerInstance() throws InvalidConfigurationException {
+    public static ApplicationReleaseManager getApplicationReleaseManagerInstance()
+            throws InvalidConfigurationException {
         ConfigurationManager configurationManager = ConfigurationManager.getInstance();
         Extension extension = configurationManager.getExtension(Extension.Name.ApplicationReleaseManager);
         return getInstance(extension, ApplicationReleaseManager.class);
@@ -108,8 +122,9 @@ public class ApplicationManagementUtil {
                 return constructor.newInstance();
             }
         } catch (Exception e) {
-            throw new InvalidConfigurationException("Unable to get instance of extension - " + extension.getName()
+            throw new InvalidConfigurationException(
-                    + " , for class - " + extension.getClassName(), e);
+                    "Unable to get instance of extension - " + extension.getName() + " , for class - " + extension
+                            .getClassName(), e);
         }
     }
 }

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/util/ApplicationMgtDatabaseCreator.java

@@ -18,11 +18,11 @@
 
 package org.wso2.carbon.device.application.mgt.core.util;
 
-import java.io.File;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.wso2.carbon.utils.CarbonUtils;
 import org.wso2.carbon.utils.dbcreator.DatabaseCreator;
+import java.io.File;
 
 /**
  * ApplicationMgtDatabaseCreator is responsible for creating the Application Management related tables.

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/util/Constants.java

@@ -22,6 +22,9 @@ import org.wso2.carbon.utils.CarbonUtils;
 
 import java.io.File;
 
+/**
+ * Application Management related constants.
+ */
 public class Constants {
 
     public static final String APPLICATION_CONFIG_XML_FILE = "application-mgt.xml";

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/util/HelperUtil.java

@@ -20,6 +20,9 @@ package org.wso2.carbon.device.application.mgt.core.util;
 
 import java.util.UUID;
 
+/**
+ * Utility methods used in the Application Management.
+ */
 public class HelperUtil {
 
     public static String generateApplicationUuid() {

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/util/JSONUtil.java

@@ -24,17 +24,18 @@ import org.json.JSONException;
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * This utility class handles the JSON manipulation related tasks.
+ */
 public class JSONUtil {
 
     public static List<String> jsonArrayStringToList(String value) throws JSONException {
         JSONArray jsonArray = new JSONArray(value);
         List<String> list = new ArrayList<>();
-        if (jsonArray != null) {
         int len = jsonArray.length();
         for (int i = 0; i < len; i++) {
             list.add(jsonArray.get(i).toString());
         }
-        }
         return list;
     }