89 lines
2.4 KiB
Java
89 lines
2.4 KiB
Java
package de.rwu.easydrop.api.client;
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import java.net.MalformedURLException;
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import java.net.URL;
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import com.jayway.jsonpath.JsonPath;
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import com.jayway.jsonpath.PathNotFoundException;
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import com.jayway.jsonpath.ReadContext;
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import de.rwu.easydrop.api.dto.ProductDTO;
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/**
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* Interface to an eBay data source.
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*
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* @since 0.2.0
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*/
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public final class EbayItemDataSource extends AbstractDataSource {
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/**
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* Name of this data source.
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*/
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private static final String DATA_ORIGIN = "eBay";
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/**
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* Base URL to the eBay data source.
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*/
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private String baseUrl;
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/**
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* Credential key to authorize access.
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*/
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private String apiKey;
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/**
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* Sets up instance with Base URL and API Key.
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*
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* @param newBaseUrl
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* @param newApiKey
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*/
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public EbayItemDataSource(final String newBaseUrl, final String newApiKey) {
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this.baseUrl = newBaseUrl;
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this.apiKey = newApiKey;
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}
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/**
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* @param searchQuery Exact product name or other valid identifier.
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*/
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@Override
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public URL createApiUrl(final String searchQuery) throws MalformedURLException {
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return new URL(baseUrl
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+ "/buy/browse/v1/item_summary/search?q="
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+ searchQuery
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+ "&limit=1&offset=0");
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}
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/**
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* Enriches a ProductDTO with API-gathered data.
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*
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* @param product Unfinished ProductDTO
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* @param json Product data
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* @return Finished ProductDTO
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*/
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public ProductDTO buildProductDTO(final ProductDTO product, final String json) {
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String root = "$.itemSummaries[0].";
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ReadContext ctx = JsonPath.parse(json);
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try {
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product.setDataOrigin(DATA_ORIGIN);
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product.setAvailable(
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ctx.read(root + "shippingOptions[0].guaranteedDelivery", boolean.class));
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product.setCurrentPrice(ctx.read(root + "price.value", double.class));
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product.setDeliveryPrice(
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ctx.read(root + "shippingOptions[0].shippingCost.value", double.class));
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product.setMerchant(ctx.read(root + "seller.username", String.class));
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} catch (PathNotFoundException e) {
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// Pass, allow incomplete ProductDTO to pass for later validation
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}
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return product;
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}
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@Override
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protected String getDataOrigin() {
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return DATA_ORIGIN;
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}
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@Override
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protected String getApiKey() {
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return this.apiKey;
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}
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}
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