/** 得到下一个商品节点 */
@Override
public Node next() {
if (hasNext()) {
if (point == productList.size() - 1) {
pageIndex++;
map.put("pg", String.valueOf(pageIndex));
map.put("ps", String.valueOf(pageSize));
String url = URLBuilder.buildURL(map);
String xml = SearchRequester.get(url);
try {
productList = XMLParser.getProductNodes(XMLParser.read(xml));
} catch (MalformedURLException | DocumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// productList = URLBuilder.getXML(verifyPoint, keyWord, media);
point = 0;
return productList.get(point);
} else {
point++;
return productList.get(point);
}
} else {
return null;
}
}
/*
* 通过Map参数拼URL获取XML数据，再获取productList
*/
public ProdIterator(Map<String, String> map, int maxIndex) {
this.map = map;
this.maxIndex = maxIndex;
this.map.put("pg", String.valueOf(pageIndex));
this.map.put("ps", String.valueOf(pageSize));
String url = URLBuilder.buildURL(this.map);
String xml = SearchRequester.get(url);
logger.debug(url);
try {
Document doc = XMLParser.read(xml);
productList = XMLParser.getProductNodes(doc);
pageCount = Integer.valueOf(XMLParser.PageCount(doc));
totalCount = Integer.valueOf(XMLParser.totalCount(doc));
setTerm(XMLParser.term(doc));
if (totalCount < maxIndex) {
this.maxIndex = totalCount;
}
// logger.debug(" - [Iterator] - init the product List!");
} catch (MalformedURLException | DocumentException e) {
ByteArrayOutputStream buf = new ByteArrayOutputStream();
e.printStackTrace(new PrintWriter(buf, true));
String expMessage = buf.toString();
logger.error(" - [LOG_EXCEPTION] - " + expMessage);
// logger.error(expMessage);
// e.printStackTrace();
}
}
public boolean reSet() {
this.pageIndex = 1;
this.point = -1;
this.map.put("pg", String.valueOf(pageIndex));
this.map.put("ps", String.valueOf(pageSize));
String url = URLBuilder.buildURL(this.map);
String xml = SearchRequester.get(url);
try {
Document doc = XMLParser.read(xml);
productList = XMLParser.getProductNodes(doc);
pageCount = Integer.valueOf(XMLParser.PageCount(doc));
totalCount = Integer.valueOf(XMLParser.totalCount(doc));
// logger.debug(" - [Iterator] - reSet the product List!");
return true;
} catch (MalformedURLException | DocumentException e) {
// TODO Auto-generated catch block
ByteArrayOutputStream baos = new ByteArrayOutputStream();
e.printStackTrace(new PrintStream(baos));
String exception = baos.toString();
logger.error(" - [LOG_EXCEPTION] - " + exception);
e.printStackTrace();
return false;
}
}