René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Signed reference expiration time is measured in seconds since epoch","articleBody":"Java measures time in milliseconds from the epoch not seconds and using this as a base would be simpler. The example:\n\n``` java\n      Calendar cal = Calendar.getInstance();\n      cal.add(Calendar.DATE, 1);\n      long expiration = cal.getTimeInMillis() / 1000;\n      storage.signUrl(blobInfo, expiration));\n```\n\nwould become:\n\n``` java\n      Calendar cal = Calendar.getInstance();\n      cal.add(Calendar.DATE, 1);\n      storage.signUrl(blobInfo, cal.getTime()));\n```\n\nHowever, given this is actually just performing an interval calculation we could also support:\n\n``` java\n    storage.signUrl(blobInfo, 1, TimeUnit.DAYS);\n```\n\nIdeally we would also support the time classes added in Java 8:\n\n``` java\n    storage.signUrl(blobInfo, Instant.now().plus(24, ChronoUnit.HOURS));\n    storage.signUrl(blobInfo, Duration.ofDays(1));\n```\n","author":{"url":"https://github.com/jboynes","@type":"Person","name":"jboynes"},"datePublished":"2015-06-10T01:45:55.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":6},"url":"https://github.com/107/google-cloud-java/issues/107"}