Re-usability of Device Type Plugin DAO Manager See merge request entgra/carbon-device-mgt!196merge-requests/208/head
Dharmakeerthi Lasantha
5 years ago
commit
9f7addebef
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/*
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* Copyright (c) 2019, Entgra (Pvt) Ltd. (https://entgra.io) All Rights Reserved.
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*
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* Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
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* Version 2.0 (the "License"); you may not use this file except
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* in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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package org.wso2.carbon.device.mgt.extensions.device.type.template;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.wso2.carbon.context.PrivilegedCarbonContext;
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import org.wso2.carbon.device.mgt.extensions.device.type.template.dao.DeviceTypePluginDAOManager;
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import org.wso2.carbon.device.mgt.extensions.device.type.template.exception.DeviceTypePluginExtensionException;
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import org.wso2.carbon.device.mgt.extensions.spi.DeviceTypePluginExtensionService;
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import java.util.HashMap;
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import java.util.Map;
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public class DeviceTypePluginExtensionServiceImpl implements DeviceTypePluginExtensionService {
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private static final Log log = LogFactory.getLog(DeviceTypePluginExtensionServiceImpl.class);
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private static volatile Map<String, DeviceTypePluginDAOManager> pluginDAOManagers = new HashMap<>();
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@Override
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public void addPluginDAOManager(String deviceType, DeviceTypePluginDAOManager pluginDAOManager)
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throws DeviceTypePluginExtensionException {
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int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
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if (pluginDAOManager == null) {
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String msg = "Cannot save DeviceTypePluginDAOManager against tenant id " + tenantId
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+ " and device type: " + deviceType + " since DeviceTypePluginDAOManager is null";
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log.error(msg);
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throw new DeviceTypePluginExtensionException(msg);
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}
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if (!pluginDAOManagers.containsKey(tenantId + deviceType)) {
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if (log.isDebugEnabled()) {
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log.debug("Saving DeviceTypePluginDAOManager against tenant id " + tenantId +
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" and device type: " + deviceType);
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}
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pluginDAOManagers.put(tenantId + deviceType, pluginDAOManager);
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}
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}
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@Override
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public DeviceTypePluginDAOManager getPluginDAOManager(String deviceType) throws DeviceTypePluginExtensionException {
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int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
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if (pluginDAOManagers.containsKey(tenantId + deviceType)) {
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if (log.isDebugEnabled()) {
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log.debug("Retrieving DeviceTypePluginDAOManager against tenant id " + tenantId +
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" and device type: " + deviceType);
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}
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return pluginDAOManagers.get(tenantId + deviceType);
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} else {
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String msg = "DeviceTypePluginDAOManager could not be found against tenant id " + tenantId +
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" and device type: " + deviceType;
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log.error(msg);
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throw new DeviceTypePluginExtensionException(msg);
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}
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}
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}
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@ -0,0 +1,12 @@
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package org.wso2.carbon.device.mgt.extensions.device.type.template.exception;
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public class DeviceTypePluginExtensionException extends Exception {
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public DeviceTypePluginExtensionException(String msg) {
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super(msg);
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}
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public DeviceTypePluginExtensionException(String msg, Throwable cause) {
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super(msg, cause);
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}
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}
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@ -0,0 +1,45 @@
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/*
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* Copyright (c) 2019, Entgra (Pvt) Ltd. (https://entgra.io) All Rights Reserved.
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*
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* Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
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* Version 2.0 (the "License"); you may not use this file except
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* in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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package org.wso2.carbon.device.mgt.extensions.spi;
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import org.wso2.carbon.device.mgt.extensions.device.type.template.dao.DeviceTypePluginDAOManager;
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import org.wso2.carbon.device.mgt.extensions.device.type.template.exception.DeviceTypePluginExtensionException;
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/**
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* This represents the device type plugin extension service which can be used by any device type plugin implementation
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* intended to use the same plugin DAO instances to be used with its plugin level DAO components
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*/
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public interface DeviceTypePluginExtensionService {
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/**
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* Save device type specific DeviceTypePluginDAOManager in a HashMap againast tenant ID and device type
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* @param deviceType - Type of the device (i.e; android, ios, windows)
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* @param pluginDAOManager - Device type plugin DAO manager instance to be saved against device type
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* @throws DeviceTypePluginExtensionException when pluginDAOManager is null
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*/
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void addPluginDAOManager(String deviceType, DeviceTypePluginDAOManager pluginDAOManager)
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throws DeviceTypePluginExtensionException;
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/**
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* Retrieve the DeviceTypePluginDAOManager instance against tenant ID and given device type
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* @param deviceType - Type of the device (i.e; android, ios, windows)
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* @return an Instance of {@link DeviceTypePluginDAOManager}
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* @throws DeviceTypePluginExtensionException when pluginDAOManager cannot be found
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*/
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DeviceTypePluginDAOManager getPluginDAOManager(String deviceType) throws DeviceTypePluginExtensionException;
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}
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