ProductsApiResource.java

/**
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/.
 */
package org.mifosplatform.portfolio.products.api;

import java.util.Collection;
import java.util.HashSet;

import javax.ws.rs.Consumes;
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 org.mifosplatform.commands.domain.CommandWrapper;
import org.mifosplatform.commands.service.CommandWrapperBuilder;
import org.mifosplatform.commands.service.PortfolioCommandSourceWritePlatformService;
import org.mifosplatform.infrastructure.core.api.ApiRequestParameterHelper;
import org.mifosplatform.infrastructure.core.data.CommandProcessingResult;
import org.mifosplatform.infrastructure.core.serialization.ApiRequestJsonSerializationSettings;
import org.mifosplatform.infrastructure.core.serialization.DefaultToApiJsonSerializer;
import org.mifosplatform.infrastructure.security.service.PlatformSecurityContext;
import org.mifosplatform.portfolio.products.constants.ProductsApiConstants;
import org.mifosplatform.portfolio.products.data.ProductData;
import org.mifosplatform.portfolio.products.service.ProductCommandsService;
import org.mifosplatform.portfolio.products.service.ProductReadPlatformService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;


@Path("/products/{type}")
@Component
@Scope("singleton")
public class ProductsApiResource {

    private final ApplicationContext applicationContext ;
    private final ApiRequestParameterHelper apiRequestParameterHelper;
    private final DefaultToApiJsonSerializer<ProductData> toApiJsonSerializer;
    private final DefaultToApiJsonSerializer<Object> toApiObjectJsonSerializer ;
    private final PlatformSecurityContext platformSecurityContext;
    private final PortfolioCommandSourceWritePlatformService commandsSourceWritePlatformService;
    
    @Autowired
    public ProductsApiResource(final ApplicationContext applicationContext,
            final ApiRequestParameterHelper apiRequestParameterHelper,
            final DefaultToApiJsonSerializer<ProductData> toApiJsonSerializer,
            final PlatformSecurityContext platformSecurityContext,
            final PortfolioCommandSourceWritePlatformService commandsSourceWritePlatformService,
            final DefaultToApiJsonSerializer<Object> toApiDividendsJsonSerializer) {
        this.applicationContext = applicationContext ;
        this.apiRequestParameterHelper = apiRequestParameterHelper ;
        this.toApiJsonSerializer = toApiJsonSerializer ;
        this.platformSecurityContext = platformSecurityContext ; 
        this.commandsSourceWritePlatformService = commandsSourceWritePlatformService ;
        this.toApiObjectJsonSerializer = toApiDividendsJsonSerializer ;
    }
    
    @GET
    @Path("template")
    @Consumes({ MediaType.APPLICATION_JSON })
    @Produces({ MediaType.APPLICATION_JSON })
    public String retrieveTemplate(@PathParam("type") final String productType, @Context final UriInfo uriInfo) {
        String serviceName = productType+ProductsApiConstants.READPLATFORM_NAME ;
        ProductReadPlatformService service = (ProductReadPlatformService) this.applicationContext.getBean(serviceName) ;
        ProductData data = service.retrieveTemplate() ;
        final ApiRequestJsonSerializationSettings settings = this.apiRequestParameterHelper.process(uriInfo.getQueryParameters());
        return this.toApiJsonSerializer.serialize(settings, data, service.getResponseDataParams());
    }
    
    @GET
    @Path("{productId}")
    @Consumes({ MediaType.APPLICATION_JSON })
    @Produces({ MediaType.APPLICATION_JSON })
    public String retrieveProduct(@PathParam("productId") final Long productId, @PathParam("type") final String productType,
            @Context final UriInfo uriInfo) {
        String serviceName = productType+ProductsApiConstants.READPLATFORM_NAME ;
        ProductReadPlatformService service = (ProductReadPlatformService) this.applicationContext.getBean(serviceName) ;
        ProductData data = service.retrieveOne(productId) ;
        final ApiRequestJsonSerializationSettings settings = this.apiRequestParameterHelper.process(uriInfo.getQueryParameters());
        return this.toApiJsonSerializer.serialize(settings, data, service.getResponseDataParams());
    }
    
    @GET
    @Consumes({ MediaType.APPLICATION_JSON })
    @Produces({ MediaType.APPLICATION_JSON })
    public String retrieveAllProducts(@PathParam("type") final String productType, @Context final UriInfo uriInfo) {
        String serviceName = productType+ProductsApiConstants.READPLATFORM_NAME ;
        ProductReadPlatformService service = (ProductReadPlatformService) this.applicationContext.getBean(serviceName) ;
        Collection<ProductData> data = service.retrieveAllProducts() ;
        final ApiRequestJsonSerializationSettings settings = this.apiRequestParameterHelper.process(uriInfo.getQueryParameters());
        return this.toApiJsonSerializer.serialize(settings, data, service.getResponseDataParams()); 
    }
    
    @POST
    @Consumes({ MediaType.APPLICATION_JSON })
    @Produces({ MediaType.APPLICATION_JSON })
    public String createProduct(@PathParam("type") final String productType, final String apiRequestBodyAsJson) {
        CommandWrapper commandWrapper = null;
        this.platformSecurityContext.authenticatedUser();
        commandWrapper = new CommandWrapperBuilder().createProduct(productType).withJson(apiRequestBodyAsJson).build();
        final CommandProcessingResult commandProcessingResult = this.commandsSourceWritePlatformService.logCommandSource(commandWrapper);
        return this.toApiJsonSerializer.serialize(commandProcessingResult);
    }
    
    @POST
    @Path("{productId}")
    @Consumes({ MediaType.APPLICATION_JSON })
    @Produces({ MediaType.APPLICATION_JSON })
    public String handleCommands(@PathParam("type") final String productType, @PathParam("productId") final Long productId, @QueryParam("command") final String commandParam,
            @Context final UriInfo uriInfo, final String apiRequestBodyAsJson) {
        String serviceName = productType.toUpperCase()+ProductsApiConstants.PRODUCT_COMMANDSERVICE ;
        ProductCommandsService service = (ProductCommandsService) this.applicationContext.getBean(serviceName) ;
        final Object obj = service.handleCommand(productId, commandParam, apiRequestBodyAsJson) ;
        final ApiRequestJsonSerializationSettings settings = this.apiRequestParameterHelper.process(uriInfo.getQueryParameters());
        return this.toApiObjectJsonSerializer.serialize(settings, obj, new HashSet<String>());
    }
    
    @PUT
    @Path("{productId}")
    @Consumes({ MediaType.APPLICATION_JSON })
    @Produces({ MediaType.APPLICATION_JSON })
    public String updateProduct(@PathParam("type") final String productType, @PathParam("productId") final Long productId, final String apiRequestBodyAsJson) {
        this.platformSecurityContext.authenticatedUser();
        final CommandWrapper commandRequest = new CommandWrapperBuilder().updateProduct(productType, productId)
                .withJson(apiRequestBodyAsJson).build();
        final CommandProcessingResult result = this.commandsSourceWritePlatformService.logCommandSource(commandRequest);
        return this.toApiJsonSerializer.serialize(result);
    }
    
    private boolean is(final String commandParam, final String commandValue) {
        return StringUtils.isNotBlank(commandParam) && commandParam.trim().equalsIgnoreCase(commandValue);
    }
}