Java HttpDate类代码示例

import okhttp3.internal.http.HttpDate; //导入依赖的package包/类
@Test public void maxAge() throws Exception {
  assertEquals(51000L,
      Cookie.parse(50000L, url, "a=b; Max-Age=1").expiresAt());
  assertEquals(HttpDate.MAX_DATE,
      Cookie.parse(50000L, url, "a=b; Max-Age=9223372036854724").expiresAt());
  assertEquals(HttpDate.MAX_DATE,
      Cookie.parse(50000L, url, "a=b; Max-Age=9223372036854725").expiresAt());
  assertEquals(HttpDate.MAX_DATE,
      Cookie.parse(50000L, url, "a=b; Max-Age=9223372036854726").expiresAt());
  assertEquals(HttpDate.MAX_DATE,
      Cookie.parse(9223372036854773807L, url, "a=b; Max-Age=1").expiresAt());
  assertEquals(HttpDate.MAX_DATE,
      Cookie.parse(9223372036854773807L, url, "a=b; Max-Age=2").expiresAt());
  assertEquals(HttpDate.MAX_DATE,
      Cookie.parse(9223372036854773807L, url, "a=b; Max-Age=3").expiresAt());
  assertEquals(HttpDate.MAX_DATE,
      Cookie.parse(50000L, url, "a=b; Max-Age=10000000000000000000").expiresAt());
}
 

import okhttp3.internal.http.HttpDate; //导入依赖的package包/类
@Test public void builder() throws Exception {
  Cookie cookie = new Cookie.Builder()
      .name("a")
      .value("b")
      .domain("example.com")
      .build();
  assertEquals("a", cookie.name());
  assertEquals("b", cookie.value());
  assertEquals(HttpDate.MAX_DATE, cookie.expiresAt());
  assertEquals("example.com", cookie.domain());
  assertEquals("/", cookie.path());
  assertFalse(cookie.secure());
  assertFalse(cookie.httpOnly());
  assertFalse(cookie.persistent());
  assertFalse(cookie.hostOnly());
}
 

import okhttp3.internal.http.HttpDate; //导入依赖的package包/类
static boolean isStale(Request request, Response response) {
  String timeoutStr = request.header(CACHE_EXPIRE_TIMEOUT_HEADER);
  String servedDateStr = response.header(CACHE_SERVED_DATE_HEADER);
  if (servedDateStr == null || timeoutStr == null) {
    return true;
  }

  long timeout = Long.parseLong(timeoutStr);
  if (timeout == 0) {
    return false;
  }

  Date servedDate = HttpDate.parse(servedDateStr);
  long now = System.currentTimeMillis();
  return servedDate == null || now - servedDate.getTime() > timeout;
}
 

import okhttp3.internal.http.HttpDate; //导入依赖的package包/类
static boolean isStale(@NonNull final Request request, @NonNull final Response response) {
  if (fetchStrategy(request) == HttpCachePolicy.FetchStrategy.CACHE_ONLY) {
    return false;
  }

  String timeoutStr = request.header(CACHE_EXPIRE_TIMEOUT_HEADER);
  String servedDateStr = response.header(CACHE_SERVED_DATE_HEADER);
  if (servedDateStr == null || timeoutStr == null) {
    return true;
  }

  long timeout = Long.parseLong(timeoutStr);
  Date servedDate = HttpDate.parse(servedDateStr);

  long now = System.currentTimeMillis();
  return servedDate == null || now - servedDate.getTime() > timeout;
}
 

import okhttp3.internal.http.HttpDate; //导入依赖的package包/类
/**
 * @param forObsoleteRfc2965 true to include a leading {@code .} on the domain pattern. This is
 *     necessary for {@code example.com} to match {@code www.example.com} under RFC 2965. This
 *     extra dot is ignored by more recent specifications.
 */
String toString(boolean forObsoleteRfc2965) {
  StringBuilder result = new StringBuilder();
  result.append(name);
  result.append('=');
  result.append(value);

  if (persistent) {
    if (expiresAt == Long.MIN_VALUE) {
      result.append("; max-age=0");
    } else {
      result.append("; expires=").append(HttpDate.format(new Date(expiresAt)));
    }
  }

  if (!hostOnly) {
    result.append("; domain=");
    if (forObsoleteRfc2965) {
      result.append(".");
    }
    result.append(domain);
  }

  result.append("; path=").append(path);

  if (secure) {
    result.append("; secure");
  }

  if (httpOnly) {
    result.append("; httponly");
  }

  return result.toString();
}
 

import okhttp3.internal.http.HttpDate; //导入依赖的package包/类
public Factory(long nowMillis, Request request, Response cacheResponse) {
  this.nowMillis = nowMillis;
  this.request = request;
  this.cacheResponse = cacheResponse;

  if (cacheResponse != null) {
    this.sentRequestMillis = cacheResponse.sentRequestAtMillis();
    this.receivedResponseMillis = cacheResponse.receivedResponseAtMillis();
    Headers headers = cacheResponse.headers();
    for (int i = 0, size = headers.size(); i < size; i++) {
      String fieldName = headers.name(i);
      String value = headers.value(i);
      if ("Date".equalsIgnoreCase(fieldName)) {
        servedDate = HttpDate.parse(value);
        servedDateString = value;
      } else if ("Expires".equalsIgnoreCase(fieldName)) {
        expires = HttpDate.parse(value);
      } else if ("Last-Modified".equalsIgnoreCase(fieldName)) {
        lastModified = HttpDate.parse(value);
        lastModifiedString = value;
      } else if ("ETag".equalsIgnoreCase(fieldName)) {
        etag = value;
      } else if ("Age".equalsIgnoreCase(fieldName)) {
        ageSeconds = HttpHeaders.parseSeconds(value, -1);
      }
    }
  }
}
 

import okhttp3.internal.http.HttpDate; //导入依赖的package包/类
@Test public void invalidYear() throws Exception {
  assertEquals(HttpDate.MAX_DATE,
      Cookie.parse(url, "a=b; Expires=Thu, 01 Jan 1600 00:00:00 GMT").expiresAt());
  assertEquals(HttpDate.MAX_DATE,
      Cookie.parse(url, "a=b; Expires=Thu, 01 Jan 19999 00:00:00 GMT").expiresAt());
  assertEquals(HttpDate.MAX_DATE,
      Cookie.parse(url, "a=b; Expires=Thu, 01 Jan 00:00:00 GMT").expiresAt());
}
 

import okhttp3.internal.http.HttpDate; //导入依赖的package包/类
@Test public void invalidMonth() throws Exception {
  assertEquals(HttpDate.MAX_DATE,
      Cookie.parse(url, "a=b; Expires=Thu, 01 Foo 1970 00:00:00 GMT").expiresAt());
  assertEquals(HttpDate.MAX_DATE,
      Cookie.parse(url, "a=b; Expires=Thu, 01 Foocember 1970 00:00:00 GMT").expiresAt());
  assertEquals(HttpDate.MAX_DATE,
      Cookie.parse(url, "a=b; Expires=Thu, 01 1970 00:00:00 GMT").expiresAt());
}
 

import okhttp3.internal.http.HttpDate; //导入依赖的package包/类
@Override public void setIfModifiedSince(long newValue) {
  super.setIfModifiedSince(newValue);
  if (ifModifiedSince != 0) {
    requestHeaders.set("If-Modified-Since", HttpDate.format(new Date(ifModifiedSince)));
  } else {
    requestHeaders.removeAll("If-Modified-Since");
  }
}
 

import okhttp3.internal.http.HttpDate; //导入依赖的package包/类
@Override public String toString() {
  StringBuilder result = new StringBuilder();
  result.append(name);
  result.append('=');
  result.append(value);

  if (persistent) {
    if (expiresAt == Long.MIN_VALUE) {
      result.append("; max-age=0");
    } else {
      result.append("; expires=").append(HttpDate.format(new Date(expiresAt)));
    }
  }

  if (!hostOnly) {
    result.append("; domain=").append(domain);
  }

  result.append("; path=").append(path);

  if (secure) {
    result.append("; secure");
  }

  if (httpOnly) {
    result.append("; httponly");
  }

  return result.toString();
}
 

import okhttp3.internal.http.HttpDate; //导入依赖的package包/类
public Factory(long nowMillis, Request request, Response cacheResponse) {
    this.nowMillis = nowMillis;
    this.request = request;
    this.cacheResponse = cacheResponse;

    if (cacheResponse != null) {
        //发送请求的时间
        this.sentRequestMillis = cacheResponse.sentRequestAtMillis();
        //获得响应的时间
        this.receivedResponseMillis = cacheResponse.receivedResponseAtMillis();
        //缓存中得请求头
        Headers headers = cacheResponse.headers();
        for (int i = 0, size = headers.size(); i < size; i++) {
            String fieldName = headers.name(i);
            String value = headers.value(i);
            //data,expires,Last-Modified,Age
            if ("Date".equalsIgnoreCase(fieldName)) {
                servedDate = HttpDate.parse(value);
                servedDateString = value;
            } else if ("Expires".equalsIgnoreCase(fieldName)) {
                expires = HttpDate.parse(value);
            } else if ("Last-Modified".equalsIgnoreCase(fieldName)) {
                lastModified = HttpDate.parse(value);
                lastModifiedString = value;
            } else if ("ETag".equalsIgnoreCase(fieldName)) {
                etag = value;
            } else if ("Age".equalsIgnoreCase(fieldName)) {
                ageSeconds = HttpHeaders.parseSeconds(value, -1);
            }
        }
    }
}
 

import okhttp3.internal.http.HttpDate; //导入依赖的package包/类
/**
 * Parse date in RFC1123 format, and return its value as epoch
 */
public static long parseDateAsEpoch(String dateStr) {
    try {
        // Parse date in RFC1123 format if this header contains one
        return HttpDate.parse(dateStr).getTime();
    } catch (Exception e) {
        // Date in invalid format, fallback to 0
        return 0;
    }
}
 

import okhttp3.internal.http.HttpDate; //导入依赖的package包/类
private void addCacheHeaders(Map<String, String> headers, Cache.Entry entry) {
    // If there's no cache entry, we're done.
    if (entry == null) {
        return;
    }

    if (entry.etag != null) {
        headers.put("If-None-Match", entry.etag);
    }

    if (entry.serverDate > 0) {
        Date refTime = new Date(entry.serverDate);
        headers.put("If-Modified-Since", HttpDate.format(refTime));
    }
}
 

import okhttp3.internal.http.HttpDate; //导入依赖的package包/类
/**
 * Returns the last value corresponding to the specified field parsed as an HTTP date, or null if
 * either the field is absent or cannot be parsed as a date.
 */
public Date getDate(String name) {
  String value = get(name);
  return value != null ? HttpDate.parse(value) : null;
}
 

import okhttp3.internal.http.HttpDate; //导入依赖的package包/类
@Test public void invalidDayOfMonth() throws Exception {
  assertEquals(HttpDate.MAX_DATE,
      Cookie.parse(url, "a=b; Expires=Thu, 32 Jan 1970 00:00:00 GMT").expiresAt());
  assertEquals(HttpDate.MAX_DATE,
      Cookie.parse(url, "a=b; Expires=Thu, Jan 1970 00:00:00 GMT").expiresAt());
}