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package chapter_12;
import java.util.HashMap;
import java.util.Map;
/**
* 大一点的例子
*
* @author biezhi
* @date 2018/8/25
*/
public class Example3 {
private Map<String, Map<String, Integer>> counts = new HashMap<>();
class EventLog {
String exitState;
boolean hasExitState() {
return exitState != null;
}
}
class HttpHeaders {
int code;
String contentType;
boolean hasResponseCode() {
return true;
}
boolean hasContentType() {
return true;
}
}
class HttpDownload {
EventLog eventLog;
HttpHeaders httpHeaders;
boolean hasEventLog() {
return eventLog != null;
}
boolean hasHttpHeaders() {
return httpHeaders != null;
}
}
void updateCounts1(HttpDownload hd) {
// counts["exitState"][hd.exitState()]++; "SUCCESS" | "FAILURE"
// counts["httpStatus"][hd.statusCode()]++; "404" | "200"
// counts["contentType"][hd.contentType()]++; "text/html" | "application/json"
}
// void updateCounts2(HttpDownload hd) {
// if (!hd.hasEventLog() || !hd.eventLog.hasExitState()) {
// int plus = 0; // 计算当前值+1
// counts.get("exitState").putIfAbsent("unknown", plus);
// } else {
// int plus = 0;
// String state = hd.eventLog.exitState;
// counts.get("exitState").putIfAbsent(state, plus);
// }
//
// if (!hd.hasHttpHeaders()) {
// int plus = 0;
// counts.get("httpStatus").putIfAbsent("unknown", plus);
// counts.get("contentType").putIfAbsent("unknown", plus);
// return;
// }
//
// HttpHeaders httpHeaders = hd.httpHeaders;
//
// // 记录 httpStatus 的计数，不存在则记录为 unknown
// if (!httpHeaders.hasResponseCode()) {
// int plus = 0; // 计算当前值+1
// counts.get("httpStatus").putIfAbsent("unknown", plus);
// } else {
// int plus = 0;
// String code = String.valueOf(httpHeaders.code);
// counts.get("httpStatus").putIfAbsent(code, plus);
// }
//
// // 记录 contentType 的计数，不存在则记录为 unknown
// if (!httpHeaders.hasContentType()) {
// int plus = 0;
// counts.get("contentType").putIfAbsent("unknown", plus);
// } else {
// int plus = 0;
// String contentType = httpHeaders.contentType;
// counts.get("contentType").putIfAbsent(contentType, plus);
// }
// }
void updateCounts3(HttpDownload hd) {
String exitState = "unknown";
String httpStatus = "unknown";
String contentType = "unknown";
if (hd.hasEventLog() && hd.eventLog.hasExitState()) {
exitState = hd.eventLog.exitState;
}
if(hd.hasHttpHeaders() && hd.httpHeaders.hasResponseCode()){
httpStatus = String.valueOf(hd.httpHeaders.code);
}
if(hd.hasHttpHeaders() && hd.httpHeaders.hasContentType()){
contentType = hd.httpHeaders.contentType;
}
int plus = 0; // 计算当前值+1
counts.get("exitState").putIfAbsent(exitState, plus);
counts.get("httpStatus").putIfAbsent(httpStatus, plus);
counts.get("contentType").putIfAbsent(contentType, plus);
}
}