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thangpt2019thangpt2019
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cache response with okhttp
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‎Book-RESTful-Service/src/main/java/FcmTest.java‎

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‎okhttp-examples/src/main/java/com/howtoprogram/okhttp/cache/CacheOkHttp.java‎

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‎okhttp-examples/src/main/java/com/howtoprogram/okhttp/cache/CacheOkHttpExample.java‎

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package com.howtoprogram.okhttp.cache;
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import java.io.File;
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import java.io.IOException;
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import java.util.concurrent.TimeUnit;
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import okhttp3.Cache;
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import okhttp3.CacheControl;
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import okhttp3.OkHttpClient;
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import okhttp3.Request;
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import okhttp3.Response;
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public class CacheOkHttpExample {
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private final OkHttpClient client;
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public CacheOkHttpExample(File cacheDirectory) throws Exception {
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int cacheSize = 10 * 1024 * 1024; // 10 MiB
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Cache cache = new Cache(cacheDirectory, cacheSize);
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// Just to clear all previous caches on the given directory to make sure
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// all our tests run correctly
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cache.evictAll();
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client = new OkHttpClient.Builder().cache(cache).build();
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}
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public void getMasterData() throws Exception {
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// The below URL will produce the response with cache in 20 seconds
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Request request = new Request.Builder().url("http://httpbin.org/cache/20").build();
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Response response1 = client.newCall(request).execute();
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if (!response1.isSuccessful()) {
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throw new IOException("Unexpected code " + response1);
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}
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String response1Body = response1.body().string();
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System.out.println("Res1 response: " + response1);
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System.out.println("Res1 cache response: " + response1.cacheResponse());
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System.out.println("Res1 network response:" + response1.networkResponse());
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Response response2 = client.newCall(request).execute();
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if (!response2.isSuccessful()) {
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throw new IOException("Unexpected code " + response2);
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}
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String response2Body = response2.body().string();
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System.out.println("Res2 response: " + response2);
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System.out.println("Res2 cache response: " + response2.cacheResponse());
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System.out.println("Res2 network response: " + response2.networkResponse());
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System.out.println("Res2 equals Res1? " + response1Body.equals(response2Body));
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// To make sure the previous cached was stale
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Thread.sleep(21000);
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Response response3 = client.newCall(request).execute();
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if (!response3.isSuccessful()) {
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throw new IOException("Unexpected code " + response3);
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}
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String response3Body = response3.body().string();
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System.out.println("Res3 response: " + response3);
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System.out.println("Res3 cache response: " + response3.cacheResponse());
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System.out.println("Res3 network response:" + response3.networkResponse());
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}
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public void getLocationMaterData() throws Exception {
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// The below URL will produce the response with cache in 20 seconds
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Request request = new Request.Builder().url("http://httpbin.org/cache/20").build();
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Response response4 = client.newCall(request).execute();
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if (!response4.isSuccessful()) {
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throw new IOException("Unexpected code " + response4);
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}
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String response4Body = response4.body().string();
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System.out.println("Res4 response: " + response4);
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System.out.println("Res4 cache response: " + response4.cacheResponse());
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System.out.println("Res4 network response:" + response4.networkResponse());
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request = new Request.Builder().cacheControl(new CacheControl.Builder().noCache().build())
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.url("http://httpbin.org/cache/20").build();
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Response response5 = client.newCall(request).execute();
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if (!response5.isSuccessful()) {
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throw new IOException("Unexpected code " + response5);
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}
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String response5Body = response5.body().string();
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System.out.println("Res5 response: " + response5);
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System.out.println("Res5 cache response: " + response5.cacheResponse());
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System.out.println("Res5 network response: " + response5.networkResponse());
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}
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public void getOperatorMaterData() throws Exception {
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// The below URL will produce the response with cache in 5 seconds
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Request request = new Request.Builder().url("http://httpbin.org/cache/20").build();
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Response response6 = client.newCall(request).execute();
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if (!response6.isSuccessful()) {
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throw new IOException("Unexpected code " + response6);
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}
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String response6Body = response6.body().string();
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System.out.println("Res6 response: " + response6);
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System.out.println("Res6 cache response: " + response6.cacheResponse());
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System.out.println("Res6 network response:" + response6.networkResponse());
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// Only accept the response if it is in the cache. If the response isn't
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// cached, a 504 Unsatisfiable Request response will be returned.
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request = new Request.Builder()
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.cacheControl(new CacheControl.Builder().onlyIfCached().build())
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.url("http://httpbin.org/cache/20").build();
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Response response7 = client.newCall(request).execute();
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String response7Body = response7.body().string();
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System.out.println("Res7 response: " + response7);
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System.out.println("Res7 cache response: " + response7.cacheResponse());
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System.out.println("Res7 network response: " + response7.networkResponse());
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// Sleep 20 seconds to make sure the cache will be stale. Then the 504
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// error will be thrown.
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Thread.sleep(20000);
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Response response8 = client.newCall(request).execute();
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String response8Body = response8.body().string();
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System.out.println("Res8 response: " + response8);
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System.out.println("Res8 cache response: " + response8.cacheResponse());
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System.out.println("Res8 network response: " + response8.networkResponse());
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}
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public void getZoneMaterData() throws Exception {
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// The below URL will produce the response with cache in 20 seconds
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Request request = new Request.Builder().url("http://httpbin.org/cache/20").build();
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Response response9 = client.newCall(request).execute();
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if (!response9.isSuccessful()) {
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throw new IOException("Unexpected code " + response9);
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}
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String response9Body = response9.body().string();
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System.out.println("Res9 response: " + response9);
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System.out.println("Res9 cache response: " + response9.cacheResponse());
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System.out.println("Res9 network response:" + response9.networkResponse());
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// Sleep 22 seconds to make sure the cache will be stale.
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Thread.sleep(22000);
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request = new Request.Builder()
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.cacheControl(new CacheControl.Builder().onlyIfCached().build())
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.url("http://httpbin.org/cache/20").build();
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Response response10 = client.newCall(request).execute();
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String response10Body = response10.body().string();
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System.out.println("Res10 response: " + response10);
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request = new Request.Builder()
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.cacheControl(new CacheControl.Builder().maxStale(7, TimeUnit.DAYS).build())
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.url("http://httpbin.org/cache/20").build();
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Response response11 = client.newCall(request).execute();
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String response11Body = response11.body().string();
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System.out.println("Res11 response: " + response11);
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System.out.println("Res11 cache response: " + response11.cacheResponse());
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System.out.println("Res11 network response:" + response11.networkResponse());
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}
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public static void main(String args[]) throws Exception {
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File cacheLoc = new File("/var/tmp/okhttp");
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CacheOkHttpExample cacheOkHttp = new CacheOkHttpExample(cacheLoc);
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cacheOkHttp.getLocationMaterData();
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// cacheOkHttp.getOperatorMaterData();
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// cacheOkHttp.getZoneMaterData();
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}
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}

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