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.Collection; import javax.ws.rs.Consumes; import javax.ws.rs.GET; import javax.ws.rs.POST; 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.ApiRequestParameterHelper; import com.gst.infrastructure.core.data.CommandProcessingResult; import com.gst.infrastructure.core.exception.PlatformDataIntegrityException; 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.security.service.PlatformSecurityContext; import com.gst.portfolio.paymenttype.data.PaymentTypeData; import com.gst.portfolio.paymenttype.service.PaymentTypeReadPlatformService; import com.gst.portfolio.savings.DepositAccountType; import com.gst.portfolio.savings.SavingsApiConstants; import com.gst.portfolio.savings.data.SavingsAccountTransactionData; import com.gst.portfolio.savings.service.SavingsAccountReadPlatformService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Scope; import org.springframework.dao.CannotAcquireLockException; import org.springframework.orm.ObjectOptimisticLockingFailureException; import org.springframework.stereotype.Component; @Path("/savingsaccounts/{savingsId}/transactions") @Component @Scope("singleton") public class SavingsAccountTransactionsApiResource { private final PlatformSecurityContext context; private final DefaultToApiJsonSerializer<SavingsAccountTransactionData> toApiJsonSerializer; private final PortfolioCommandSourceWritePlatformService commandsSourceWritePlatformService; private final ApiRequestParameterHelper apiRequestParameterHelper; private final SavingsAccountReadPlatformService savingsAccountReadPlatformService; private final PaymentTypeReadPlatformService paymentTypeReadPlatformService; @Autowired public SavingsAccountTransactionsApiResource(final PlatformSecurityContext context, final DefaultToApiJsonSerializer<SavingsAccountTransactionData> toApiJsonSerializer, final PortfolioCommandSourceWritePlatformService commandsSourceWritePlatformService, final ApiRequestParameterHelper apiRequestParameterHelper, final SavingsAccountReadPlatformService savingsAccountReadPlatformService, PaymentTypeReadPlatformService paymentTypeReadPlatformService) { this.context = context; this.toApiJsonSerializer = toApiJsonSerializer; this.commandsSourceWritePlatformService = commandsSourceWritePlatformService; this.apiRequestParameterHelper = apiRequestParameterHelper; this.savingsAccountReadPlatformService = savingsAccountReadPlatformService; this.paymentTypeReadPlatformService = paymentTypeReadPlatformService; } private boolean is(final String commandParam, final String commandValue) { return StringUtils.isNotBlank(commandParam) && commandParam.trim().equalsIgnoreCase(commandValue); } @GET @Path("template") @Consumes({ MediaType.APPLICATION_JSON }) @Produces({ MediaType.APPLICATION_JSON }) public String retrieveTemplate(@PathParam("savingsId") final Long savingsId, // @QueryParam("command") final String commandParam, @Context final UriInfo uriInfo) { this.context.authenticatedUser() .validateHasReadPermission(SavingsApiConstants.SAVINGS_ACCOUNT_RESOURCE_NAME); // FIXME - KW - for now just send back generic default information for // both deposit/withdrawal templates SavingsAccountTransactionData savingsAccount = this.savingsAccountReadPlatformService .retrieveDepositTransactionTemplate(savingsId, DepositAccountType.SAVINGS_DEPOSIT); final Collection<PaymentTypeData> paymentTypeOptions = this.paymentTypeReadPlatformService .retrieveAllPaymentTypes(); savingsAccount = SavingsAccountTransactionData.templateOnTop(savingsAccount, paymentTypeOptions); final ApiRequestJsonSerializationSettings settings = this.apiRequestParameterHelper .process(uriInfo.getQueryParameters()); return this.toApiJsonSerializer.serialize(settings, savingsAccount, SavingsApiConstants.SAVINGS_TRANSACTION_RESPONSE_DATA_PARAMETERS); } @GET @Path("{transactionId}") @Consumes({ MediaType.APPLICATION_JSON }) @Produces({ MediaType.APPLICATION_JSON }) public String retrieveOne(@PathParam("savingsId") final Long savingsId, @PathParam("transactionId") final Long transactionId, @Context final UriInfo uriInfo) { this.context.authenticatedUser() .validateHasReadPermission(SavingsApiConstants.SAVINGS_ACCOUNT_RESOURCE_NAME); SavingsAccountTransactionData transactionData = this.savingsAccountReadPlatformService .retrieveSavingsTransaction(savingsId, transactionId, DepositAccountType.SAVINGS_DEPOSIT); final ApiRequestJsonSerializationSettings settings = this.apiRequestParameterHelper .process(uriInfo.getQueryParameters()); if (settings.isTemplate()) { final Collection<PaymentTypeData> paymentTypeOptions = this.paymentTypeReadPlatformService .retrieveAllPaymentTypes(); transactionData = SavingsAccountTransactionData.templateOnTop(transactionData, paymentTypeOptions); } return this.toApiJsonSerializer.serialize(settings, transactionData, SavingsApiConstants.SAVINGS_TRANSACTION_RESPONSE_DATA_PARAMETERS); } @POST @Consumes({ MediaType.APPLICATION_JSON }) @Produces({ MediaType.APPLICATION_JSON }) public String transaction(@PathParam("savingsId") final Long savingsId, @QueryParam("command") final String commandParam, final String apiRequestBodyAsJson) { try { final CommandWrapperBuilder builder = new CommandWrapperBuilder().withJson(apiRequestBodyAsJson); CommandProcessingResult result = null; if (is(commandParam, "deposit")) { final CommandWrapper commandRequest = builder.savingsAccountDeposit(savingsId).build(); result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest); } else if (is(commandParam, "withdrawal")) { final CommandWrapper commandRequest = builder.savingsAccountWithdrawal(savingsId).build(); result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest); } else if (is(commandParam, "postInterestAsOn")) { final CommandWrapper commandRequest = builder.savingsAccountInterestPosting(savingsId).build(); result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest); } if (result == null) { // throw new UnrecognizedQueryParamException("command", commandParam, new Object[] { "deposit", "withdrawal" }); } return this.toApiJsonSerializer.serialize(result); } catch (ObjectOptimisticLockingFailureException lockingFailureException) { throw new PlatformDataIntegrityException("error.msg.savings.concurrent.operations", "Concurrent Transactions being made on this savings account: " + lockingFailureException.getMessage()); } catch (CannotAcquireLockException cannotAcquireLockException) { throw new PlatformDataIntegrityException( "error.msg.savings.concurrent.operations.unable.to.acquire.lock", "Unable to acquir lock for this transaction: " + cannotAcquireLockException.getMessage()); } } @POST @Path("{transactionId}") @Consumes({ MediaType.APPLICATION_JSON }) @Produces({ MediaType.APPLICATION_JSON }) public String adjustTransaction(@PathParam("savingsId") final Long savingsId, @PathParam("transactionId") final Long transactionId, @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, SavingsApiConstants.COMMAND_UNDO_TRANSACTION)) { final CommandWrapper commandRequest = builder.undoSavingsAccountTransaction(savingsId, transactionId) .build(); result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest); } else if (is(commandParam, SavingsApiConstants.COMMAND_ADJUST_TRANSACTION)) { final CommandWrapper commandRequest = builder.adjustSavingsAccountTransaction(savingsId, transactionId) .build(); result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest); } if (result == null) { // throw new UnrecognizedQueryParamException("command", commandParam, new Object[] { "undo" }); } return this.toApiJsonSerializer.serialize(result); } }