Java tutorial
// Copyright 2011 Google Inc. All Rights Reserved. package com.android.volley.utils; import com.android.volley.Cache; import java.util.Random; public class CacheTestUtils { /** * Makes a random cache entry. * @param data Data to use, or null to use random data * @param isExpired Whether the TTLs should be set such that this entry is expired * @param needsRefresh Whether the TTLs should be set such that this entry needs refresh */ public static Cache.Entry makeRandomCacheEntry(byte[] data, boolean isExpired, boolean needsRefresh) { Random random = new Random(); Cache.Entry entry = new Cache.Entry(); if (data != null) { entry.data = data; } else { entry.data = new byte[random.nextInt(1024)]; } entry.etag = String.valueOf(random.nextLong()); entry.lastModified = random.nextLong(); entry.ttl = isExpired ? 0 : Long.MAX_VALUE; entry.softTtl = needsRefresh ? 0 : Long.MAX_VALUE; return entry; } /** * Like {@link #makeRandomCacheEntry(byte[], boolean, boolean)} but * defaults to an unexpired entry. */ public static Cache.Entry makeRandomCacheEntry(byte[] data) { return makeRandomCacheEntry(data, false, false); } }