private static void parseTitle(Topic.Builder topicBuilder, Element ele) {
ele = ele.select(".item_title > a").get(0);
Preconditions.checkState(ele.tagName().equals("a"));
String url = ele.attr("href");
topicBuilder.setId(Topic.getIdFromUrl(url));
topicBuilder.setTitle(ele.html());
}
private static Topic parseItemForNode(Element item, Node node) {
final Elements list = item.children();
final Topic.Builder topicBuilder = new Topic.Builder();
parseMember(topicBuilder, list.get(0));
final Element ele = list.get(2);
parseTitle(topicBuilder, ele);
parseInfo(topicBuilder, ele, node);
parseReplyCount(topicBuilder, list.get(3));
return topicBuilder.createTopic();
}
private static void parseReplyTime(Topic.Builder topicBuilder, TextNode textNode) {
final String text = textNode.text();
final Matcher matcher = PATTERN_REPLY_TIME.matcher(text);
if (!matcher.find()) {
throw new FatalException("match reply time for topic failed: " + text);
}
final String time = matcher.group(1);
topicBuilder.setReplyTime(time);
}
private static void parseReplyCount(Topic.Builder topicBuilder, Element ele) {
final Elements children = ele.children();
final int count;
if (children.size() > 0) {
final String numStr = ele.child(0).text();
count = Integer.parseInt(numStr);
} else {
// do not have reply yet
count = 0;
}
topicBuilder.setReplyCount(count);
}
static void parseMember(Topic.Builder builder, Element ele) {
final Member.Builder memberBuilder = new Member.Builder();
// get member url
ele = ele.child(0);
Preconditions.checkState(ele.tagName().equals("a"));
final String url = ele.attr("href");
memberBuilder.setUsername(Member.getNameFromUrl(url));
// get member avatar
final Avatar.Builder avatarBuilder = new Avatar.Builder();
ele = ele.child(0);
Preconditions.checkState(ele.tagName().equals("img"));
avatarBuilder.setUrl(ele.attr("src"));
memberBuilder.setAvatar(avatarBuilder.createAvatar());
builder.setMember(memberBuilder.createMember());
}
private static void parseInfo(Topic.Builder topicBuilder, Element ele, Node node) {
ele = ele.select(".small").get(0);
boolean hasNode;
if (node == null) {
hasNode = false;
final Elements nodeEle = ele.select("> a");
node = parseNode(nodeEle.get(0));
} else {
hasNode = true;
}
topicBuilder.setNode(node);
final int index = hasNode ? 0 : 1;
Preconditions.checkState(
ele.textNodes().size() > index,
"text nodes size should greater than %s to get reply time",
index);
parseReplyTime(topicBuilder, ele.textNodes().get(index));
}