Java tutorial
/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF 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 com.gst.portfolio.savings.api; import java.util.Arrays; import java.util.Collection; import java.util.HashSet; import java.util.Set; import javax.ws.rs.Consumes; import javax.ws.rs.DELETE; import javax.ws.rs.DefaultValue; 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.Context; import javax.ws.rs.core.MediaType; import javax.ws.rs.core.UriInfo; import org.apache.commons.lang.StringUtils; import com.gst.commands.domain.CommandWrapper; import com.gst.commands.service.CommandWrapperBuilder; import com.gst.commands.service.PortfolioCommandSourceWritePlatformService; import com.gst.infrastructure.core.api.ApiParameterHelper; import com.gst.infrastructure.core.api.ApiRequestParameterHelper; import com.gst.infrastructure.core.data.CommandProcessingResult; import com.gst.infrastructure.core.exception.UnrecognizedQueryParamException; import com.gst.infrastructure.core.serialization.ApiRequestJsonSerializationSettings; import com.gst.infrastructure.core.serialization.DefaultToApiJsonSerializer; import com.gst.infrastructure.core.service.Page; import com.gst.infrastructure.core.service.SearchParameters; import com.gst.infrastructure.security.service.PlatformSecurityContext; import com.gst.portfolio.savings.DepositAccountType; import com.gst.portfolio.savings.SavingsApiConstants; import com.gst.portfolio.savings.data.SavingsAccountChargeData; import com.gst.portfolio.savings.data.SavingsAccountData; import com.gst.portfolio.savings.data.SavingsAccountTransactionData; import com.gst.portfolio.savings.service.SavingsAccountChargeReadPlatformService; import com.gst.portfolio.savings.service.SavingsAccountReadPlatformService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Scope; import org.springframework.stereotype.Component; import org.springframework.util.CollectionUtils; @Path("/savingsaccounts") @Component @Scope("singleton") public class SavingsAccountsApiResource { private final SavingsAccountReadPlatformService savingsAccountReadPlatformService; private final PlatformSecurityContext context; private final DefaultToApiJsonSerializer<SavingsAccountData> toApiJsonSerializer; private final PortfolioCommandSourceWritePlatformService commandsSourceWritePlatformService; private final ApiRequestParameterHelper apiRequestParameterHelper; private final SavingsAccountChargeReadPlatformService savingsAccountChargeReadPlatformService; @Autowired public SavingsAccountsApiResource(final SavingsAccountReadPlatformService savingsAccountReadPlatformService, final PlatformSecurityContext context, final DefaultToApiJsonSerializer<SavingsAccountData> toApiJsonSerializer, final PortfolioCommandSourceWritePlatformService commandsSourceWritePlatformService, final ApiRequestParameterHelper apiRequestParameterHelper, final SavingsAccountChargeReadPlatformService savingsAccountChargeReadPlatformService) { this.savingsAccountReadPlatformService = savingsAccountReadPlatformService; this.context = context; this.toApiJsonSerializer = toApiJsonSerializer; this.commandsSourceWritePlatformService = commandsSourceWritePlatformService; this.apiRequestParameterHelper = apiRequestParameterHelper; this.savingsAccountChargeReadPlatformService = savingsAccountChargeReadPlatformService; } @GET @Path("template") @Consumes({ MediaType.APPLICATION_JSON }) @Produces({ MediaType.APPLICATION_JSON }) public String template(@QueryParam("clientId") final Long clientId, @QueryParam("groupId") final Long groupId, @QueryParam("productId") final Long productId, @DefaultValue("false") @QueryParam("staffInSelectedOfficeOnly") final boolean staffInSelectedOfficeOnly, @Context final UriInfo uriInfo) { this.context.authenticatedUser() .validateHasReadPermission(SavingsApiConstants.SAVINGS_ACCOUNT_RESOURCE_NAME); final SavingsAccountData savingsAccount = this.savingsAccountReadPlatformService.retrieveTemplate(clientId, groupId, productId, staffInSelectedOfficeOnly); final ApiRequestJsonSerializationSettings settings = this.apiRequestParameterHelper .process(uriInfo.getQueryParameters()); return this.toApiJsonSerializer.serialize(settings, savingsAccount, SavingsApiConstants.SAVINGS_ACCOUNT_RESPONSE_DATA_PARAMETERS); } @GET @Consumes({ MediaType.APPLICATION_JSON }) @Produces({ MediaType.APPLICATION_JSON }) public String retrieveAll(@Context final UriInfo uriInfo, @QueryParam("sqlSearch") final String sqlSearch, @QueryParam("externalId") final String externalId, // @QueryParam("underHierarchy") final String hierarchy, @QueryParam("offset") final Integer offset, @QueryParam("limit") final Integer limit, @QueryParam("orderBy") final String orderBy, @QueryParam("sortOrder") final String sortOrder) { this.context.authenticatedUser() .validateHasReadPermission(SavingsApiConstants.SAVINGS_ACCOUNT_RESOURCE_NAME); final SearchParameters searchParameters = SearchParameters.forSavings(sqlSearch, externalId, offset, limit, orderBy, sortOrder); final Page<SavingsAccountData> products = this.savingsAccountReadPlatformService .retrieveAll(searchParameters); final ApiRequestJsonSerializationSettings settings = this.apiRequestParameterHelper .process(uriInfo.getQueryParameters()); return this.toApiJsonSerializer.serialize(settings, products, SavingsApiConstants.SAVINGS_ACCOUNT_RESPONSE_DATA_PARAMETERS); } @POST @Consumes({ MediaType.APPLICATION_JSON }) @Produces({ MediaType.APPLICATION_JSON }) public String submitApplication(final String apiRequestBodyAsJson) { final CommandWrapper commandRequest = new CommandWrapperBuilder().createSavingsAccount() .withJson(apiRequestBodyAsJson).build(); final CommandProcessingResult result = this.commandsSourceWritePlatformService .logCommandSource(commandRequest); return this.toApiJsonSerializer.serialize(result); } @GET @Path("{accountId}") @Consumes({ MediaType.APPLICATION_JSON }) @Produces({ MediaType.APPLICATION_JSON }) public String retrieveOne(@PathParam("accountId") final Long accountId, @DefaultValue("false") @QueryParam("staffInSelectedOfficeOnly") final boolean staffInSelectedOfficeOnly, @DefaultValue("all") @QueryParam("chargeStatus") final String chargeStatus, @Context final UriInfo uriInfo) { this.context.authenticatedUser() .validateHasReadPermission(SavingsApiConstants.SAVINGS_ACCOUNT_RESOURCE_NAME); if (!(is(chargeStatus, "all") || is(chargeStatus, "active") || is(chargeStatus, "inactive"))) { throw new UnrecognizedQueryParamException("status", chargeStatus, new Object[] { "all", "active", "inactive" }); } final SavingsAccountData savingsAccount = this.savingsAccountReadPlatformService.retrieveOne(accountId); final Set<String> mandatoryResponseParameters = new HashSet<>(); final SavingsAccountData savingsAccountTemplate = populateTemplateAndAssociations(accountId, savingsAccount, staffInSelectedOfficeOnly, chargeStatus, uriInfo, mandatoryResponseParameters); final ApiRequestJsonSerializationSettings settings = this.apiRequestParameterHelper .process(uriInfo.getQueryParameters(), mandatoryResponseParameters); return this.toApiJsonSerializer.serialize(settings, savingsAccountTemplate, SavingsApiConstants.SAVINGS_ACCOUNT_RESPONSE_DATA_PARAMETERS); } private SavingsAccountData populateTemplateAndAssociations(final Long accountId, final SavingsAccountData savingsAccount, final boolean staffInSelectedOfficeOnly, final String chargeStatus, final UriInfo uriInfo, final Set<String> mandatoryResponseParameters) { Collection<SavingsAccountTransactionData> transactions = null; Collection<SavingsAccountChargeData> charges = null; final Set<String> associationParameters = ApiParameterHelper .extractAssociationsForResponseIfProvided(uriInfo.getQueryParameters()); if (!associationParameters.isEmpty()) { if (associationParameters.contains("all")) { associationParameters .addAll(Arrays.asList(SavingsApiConstants.transactions, SavingsApiConstants.charges)); } if (associationParameters.contains(SavingsApiConstants.transactions)) { mandatoryResponseParameters.add(SavingsApiConstants.transactions); final Collection<SavingsAccountTransactionData> currentTransactions = this.savingsAccountReadPlatformService .retrieveAllTransactions(accountId, DepositAccountType.SAVINGS_DEPOSIT); if (!CollectionUtils.isEmpty(currentTransactions)) { transactions = currentTransactions; } } if (associationParameters.contains(SavingsApiConstants.charges)) { mandatoryResponseParameters.add(SavingsApiConstants.charges); final Collection<SavingsAccountChargeData> currentCharges = this.savingsAccountChargeReadPlatformService .retrieveSavingsAccountCharges(accountId, chargeStatus); if (!CollectionUtils.isEmpty(currentCharges)) { charges = currentCharges; } } } SavingsAccountData templateData = null; final ApiRequestJsonSerializationSettings settings = this.apiRequestParameterHelper .process(uriInfo.getQueryParameters()); if (settings.isTemplate()) { templateData = this.savingsAccountReadPlatformService.retrieveTemplate(savingsAccount.clientId(), savingsAccount.groupId(), savingsAccount.productId(), staffInSelectedOfficeOnly); } return SavingsAccountData.withTemplateOptions(savingsAccount, templateData, transactions, charges); } @PUT @Path("{accountId}") @Consumes({ MediaType.APPLICATION_JSON }) @Produces({ MediaType.APPLICATION_JSON }) public String update(@PathParam("accountId") final Long accountId, final String apiRequestBodyAsJson, @QueryParam("command") final String commandParam) { if (is(commandParam, "updateWithHoldTax")) { final CommandWrapper commandRequest = new CommandWrapperBuilder().withJson(apiRequestBodyAsJson) .updateWithHoldTax(accountId).build(); final CommandProcessingResult result = this.commandsSourceWritePlatformService .logCommandSource(commandRequest); return this.toApiJsonSerializer.serialize(result); } final CommandWrapper commandRequest = new CommandWrapperBuilder().updateSavingsAccount(accountId) .withJson(apiRequestBodyAsJson).build(); final CommandProcessingResult result = this.commandsSourceWritePlatformService .logCommandSource(commandRequest); return this.toApiJsonSerializer.serialize(result); } @POST @Path("{accountId}") @Consumes({ MediaType.APPLICATION_JSON }) @Produces({ MediaType.APPLICATION_JSON }) public String handleCommands(@PathParam("accountId") final Long accountId, @QueryParam("command") final String commandParam, final String apiRequestBodyAsJson) { String jsonApiRequest = apiRequestBodyAsJson; if (StringUtils.isBlank(jsonApiRequest)) { jsonApiRequest = "{}"; } final CommandWrapperBuilder builder = new CommandWrapperBuilder().withJson(jsonApiRequest); CommandProcessingResult result = null; if (is(commandParam, "reject")) { final CommandWrapper commandRequest = builder.rejectSavingsAccountApplication(accountId).build(); result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest); } else if (is(commandParam, "withdrawnByApplicant")) { final CommandWrapper commandRequest = builder.withdrawSavingsAccountApplication(accountId).build(); result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest); } else if (is(commandParam, "approve")) { final CommandWrapper commandRequest = builder.approveSavingsAccountApplication(accountId).build(); result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest); } else if (is(commandParam, "undoapproval")) { final CommandWrapper commandRequest = builder.undoSavingsAccountApplication(accountId).build(); result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest); } else if (is(commandParam, "activate")) { final CommandWrapper commandRequest = builder.savingsAccountActivation(accountId).build(); result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest); } else if (is(commandParam, "calculateInterest")) { final CommandWrapper commandRequest = builder.withNoJsonBody() .savingsAccountInterestCalculation(accountId).build(); result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest); } else if (is(commandParam, "postInterest")) { final CommandWrapper commandRequest = builder.savingsAccountInterestPosting(accountId).build(); result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest); } else if (is(commandParam, "applyAnnualFees")) { final CommandWrapper commandRequest = builder.savingsAccountApplyAnnualFees(accountId).build(); result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest); } else if (is(commandParam, "close")) { final CommandWrapper commandRequest = builder.closeSavingsAccountApplication(accountId).build(); result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest); } else if (is(commandParam, "assignSavingsOfficer")) { final CommandWrapper commandRequest = builder.assignSavingsOfficer(accountId).build(); result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest); return this.toApiJsonSerializer.serialize(result); } else if (is(commandParam, "unassignSavingsOfficer")) { final CommandWrapper commandRequest = builder.unassignSavingsOfficer(accountId).build(); result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest); return this.toApiJsonSerializer.serialize(result); } if (result == null) { // throw new UnrecognizedQueryParamException("command", commandParam, new Object[] { "reject", "withdrawnByApplicant", "approve", "undoapproval", "activate", "calculateInterest", "postInterest", "close", "assignSavingsOfficer", "unassignSavingsOfficer" }); } return this.toApiJsonSerializer.serialize(result); } private boolean is(final String commandParam, final String commandValue) { return StringUtils.isNotBlank(commandParam) && commandParam.trim().equalsIgnoreCase(commandValue); } @DELETE @Path("{accountId}") @Consumes({ MediaType.APPLICATION_JSON }) @Produces({ MediaType.APPLICATION_JSON }) public String delete(@PathParam("accountId") final Long accountId) { final CommandWrapper commandRequest = new CommandWrapperBuilder().deleteSavingsAccount(accountId).build(); final CommandProcessingResult result = this.commandsSourceWritePlatformService .logCommandSource(commandRequest); return this.toApiJsonSerializer.serialize(result); } }