# DeviceTypeConfigurationServiceImpl.java

    /*
     *   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.mdm.services.android.services.impl;

    import org.apache.commons.logging.Log;
    import org.apache.commons.logging.LogFactory;
    import org.wso2.carbon.device.mgt.common.DeviceManagementConstants;
    import org.wso2.carbon.device.mgt.common.DeviceManagementException;
    import org.wso2.carbon.device.mgt.common.configuration.mgt.ConfigurationEntry;
    import org.wso2.carbon.device.mgt.common.configuration.mgt.PlatformConfiguration;
    import org.wso2.carbon.device.mgt.common.license.mgt.License;
    import org.wso2.carbon.mdm.services.android.bean.AndroidPlatformConfiguration;
    import org.wso2.carbon.mdm.services.android.bean.ErrorResponse;
    import org.wso2.carbon.mdm.services.android.exception.UnexpectedServerErrorException;
    import org.wso2.carbon.mdm.services.android.services.DeviceTypeConfigurationService;
    import org.wso2.carbon.mdm.services.android.util.AndroidAPIUtils;
    import org.wso2.carbon.mdm.services.android.util.AndroidConstants;

    import javax.validation.Valid;
    import javax.ws.rs.Consumes;
    import javax.ws.rs.GET;
    import javax.ws.rs.HeaderParam;
    import javax.ws.rs.PUT;
    import javax.ws.rs.Path;
    import javax.ws.rs.Produces;
    import javax.ws.rs.core.MediaType;
    import javax.ws.rs.core.Response;
    import java.util.ArrayList;
    import java.util.List;

    @Path("/configuration")
    @Produces(MediaType.APPLICATION_JSON)
    @Consumes(MediaType.APPLICATION_JSON)
    public class DeviceTypeConfigurationServiceImpl implements DeviceTypeConfigurationService {

        private static final Log log = LogFactory.getLog(DeviceTypeConfigurationServiceImpl.class);

        @GET
        @Override
        public Response getConfiguration(
                @HeaderParam("If-Modified-Since") String ifModifiedSince) {
            String msg;
            PlatformConfiguration platformConfiguration;
            List<ConfigurationEntry> configs;
            try {
                platformConfiguration = AndroidAPIUtils.getDeviceManagementService().
                        getConfiguration(DeviceManagementConstants.MobileDeviceTypes.MOBILE_DEVICE_TYPE_ANDROID);
                if (platformConfiguration != null) {
                    configs = platformConfiguration.getConfiguration();
                } else {
                    platformConfiguration = new PlatformConfiguration();
                    configs = new ArrayList<>();
                }
                ConfigurationEntry entry = new ConfigurationEntry();
                License license = AndroidAPIUtils.getDeviceManagementService().getLicense(
                        DeviceManagementConstants.MobileDeviceTypes.MOBILE_DEVICE_TYPE_ANDROID, AndroidConstants.
                        TenantConfigProperties.LANGUAGE_US);

                if (license != null && configs != null) {
                    entry.setContentType(AndroidConstants.TenantConfigProperties.CONTENT_TYPE_TEXT);
                    entry.setName(AndroidConstants.TenantConfigProperties.LICENSE_KEY);
                    entry.setValue(license.getText());
                    configs.add(entry);
                    platformConfiguration.setConfiguration(configs);
                }
            } catch (DeviceManagementException e) {
                msg = "Error occurred while retrieving the Android tenant configuration";
                log.error(msg, e);
                throw new UnexpectedServerErrorException(
                        new ErrorResponse.ErrorResponseBuilder().setCode(500l).setMessage(msg).build());
            }
            return Response.status(Response.Status.OK).entity(platformConfiguration).build();
        }

        @PUT
        @Override
        public Response updateConfiguration(@Valid AndroidPlatformConfiguration androidPlatformConfiguration) {
            String msg;
            ConfigurationEntry licenseEntry = null;
            PlatformConfiguration configuration = new PlatformConfiguration();
            if (androidPlatformConfiguration == null) {
                String errorMessage = "The payload of the android platform configuration is incorrect.";
                log.error(errorMessage);
                throw new org.wso2.carbon.mdm.services.android.exception.BadRequestException(
                        new ErrorResponse.ErrorResponseBuilder().setCode(400l).setMessage(errorMessage).build());
            }
            configuration.setConfiguration(androidPlatformConfiguration.getConfiguration());
            try {
                configuration.setType(DeviceManagementConstants.MobileDeviceTypes.MOBILE_DEVICE_TYPE_ANDROID);
                List<ConfigurationEntry> configs = configuration.getConfiguration();
                for (ConfigurationEntry entry : configs) {
                    if (AndroidConstants.TenantConfigProperties.LICENSE_KEY.equals(entry.getName())) {
                        License license = new License();
                        license.setName(DeviceManagementConstants.MobileDeviceTypes.MOBILE_DEVICE_TYPE_ANDROID);
                        license.setLanguage(AndroidConstants.TenantConfigProperties.LANGUAGE_US);
                        license.setVersion("1.0.0");
                        license.setText(entry.getValue().toString());
                        AndroidAPIUtils.getDeviceManagementService().addLicense(DeviceManagementConstants.
                                MobileDeviceTypes.MOBILE_DEVICE_TYPE_ANDROID, license);
                        licenseEntry = entry;
                    }
                }

                if (licenseEntry != null) {
                    configs.remove(licenseEntry);
                }
                configuration.setConfiguration(configs);
                AndroidAPIUtils.getDeviceManagementService().saveConfiguration(configuration);
                //AndroidAPIUtils.getGCMService().resetTenantConfigCache();
            } catch (DeviceManagementException e) {
                msg = "Error occurred while modifying configuration settings of Android platform";
                log.error(msg, e);
                throw new UnexpectedServerErrorException(
                        new ErrorResponse.ErrorResponseBuilder().setCode(500l).setMessage(msg).build());
            }
            return Response.status(Response.Status.OK).entity("Android platform configuration has been updated successfully.").build();
        }

        @GET
        @Path("/license")
        @Produces(MediaType.TEXT_PLAIN)
        public Response getLicense(
                @HeaderParam("If-Modified-Since") String ifModifiedSince) {
            License license;
            try {
                license =
                        AndroidAPIUtils.getDeviceManagementService().getLicense(
                                DeviceManagementConstants.MobileDeviceTypes.MOBILE_DEVICE_TYPE_ANDROID,
                                DeviceManagementConstants.LanguageCodes.LANGUAGE_CODE_ENGLISH_US);
            } catch (DeviceManagementException e) {
                String msg = "Error occurred while retrieving the license configured for Android device enrolment";
                log.error(msg, e);
                throw new UnexpectedServerErrorException(
                        new ErrorResponse.ErrorResponseBuilder().setCode(500l).setMessage(msg).build());
            }
            return Response.status(Response.Status.OK).entity((license == null) ? null : license.getText()).build();
        }

    }