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+/*
+ * 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 catalog.amazon;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.tuscany.sca.databinding.impl.DOMHelper;
+import org.osoa.sca.annotations.Property;
+import org.osoa.sca.annotations.Reference;
+import org.osoa.sca.annotations.Service;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+
+import catalog.CatalogService;
+import catalog.util.XPathHelper;
+
+/**
+ * @version $Rev$ $Date$
+ */
+@Service(CatalogService.class)
+public class AmazonCatalogServiceImpl implements CatalogService {
+ private static final String AMAZON_TNS = "http://webservices.amazon.com/AWSECommerceService/2007-09-21";
+
+ @Reference(name = "amazonFindItems")
+ protected AmazonCatalogService itemSearch;
+
+ @Property(name="AWSAccessKeyId", required=true)
+ protected String accessKeyId;
+
+ private Node amazonItemSearch(String keywords) throws Exception {
+ Document doc = DOMHelper.newDocument();
+ Element wrapper = doc.createElementNS(AMAZON_TNS, "ItemSearch");
+ doc.appendChild(wrapper);
+ Element key = doc.createElementNS(AMAZON_TNS, "AWSAccessKeyId");
+ key.appendChild(doc.createTextNode(accessKeyId));
+ wrapper.appendChild(key);
+
+ Element request = doc.createElementNS(AMAZON_TNS, "Request");
+ wrapper.appendChild(request);
+
+ Element keywordsElement = doc.createElementNS(AMAZON_TNS, "Keywords");
+ keywordsElement.appendChild(doc.createTextNode(keywords));
+ request.appendChild(keywordsElement);
+
+ Element searchIndex = doc.createElementNS(AMAZON_TNS, "SearchIndex");
+ searchIndex.appendChild(doc.createTextNode("All"));
+ request.appendChild(searchIndex);
+
+ // System.out.println(new Node2String().transform(doc, null));
+ Node result = itemSearch.ItemSearch(doc);
+ return result;
+ }
+
+ public String[] get() {
+ try {
+ Node list = amazonItemSearch("Fruit");
+ Map<String, String> map = new HashMap<String, String>();
+ map.put("a", AMAZON_TNS);
+ NodeList nodes =
+ XPathHelper.selectNodes("//a:Item/a:ItemAttributes[a:ProductGroup='Grocery']/a:Title", list, map);
+ String titles[] = new String[nodes.getLength()];
+ System.out.println("Amazon catalog:");
+ for (int i = 0; i < nodes.getLength(); i++) {
+ titles[i] = nodes.item(i).getTextContent();
+ System.out.println("[" + i + "]" + titles[i]);
+ }
+
+ return titles;
+ } catch (Exception e) {
+ e.printStackTrace();
+ return null;
+ }
+ }
+}