Java tutorial
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For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. * */ package org.apache.http.impl.conn; import java.util.concurrent.ExecutionException; import java.util.concurrent.Future; import java.util.concurrent.TimeUnit; import java.util.concurrent.TimeoutException; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.http.HttpHost; import org.apache.http.conn.ClientConnectionOperator; import org.apache.http.conn.ConnectionPoolTimeoutException; import org.apache.http.conn.params.ConnPerRoute; import org.apache.http.conn.params.ConnPerRouteBean; import org.apache.http.conn.routing.HttpRoute; import org.apache.http.impl.conn.tsccm.BasicPoolEntry; import org.apache.http.impl.conn.tsccm.ConnPoolByRoute; import org.apache.http.impl.conn.tsccm.PoolEntryRequest; @SuppressWarnings("deprecation") public class ConnPoolBench { private final static HttpRoute ROUTE = new HttpRoute(new HttpHost("localhost")); public static void main(String[] args) throws Exception { int c = 200; long reps = 100000; oldPool(c, reps); newPool(c, reps); } public static void newPool(int c, long reps) throws Exception { Log log = LogFactory.getLog(ConnPoolBench.class); DefaultClientConnectionOperator connOperator = new DefaultClientConnectionOperator( SchemeRegistryFactory.createDefault()); HttpConnPool pool = new HttpConnPool(log, connOperator, c, c * 10, -1, TimeUnit.MILLISECONDS); WorkerThread1[] workers = new WorkerThread1[c]; for (int i = 0; i < workers.length; i++) { workers[i] = new WorkerThread1(pool, reps); } long start = System.currentTimeMillis(); for (int i = 0; i < workers.length; i++) { workers[i].start(); } for (int i = 0; i < workers.length; i++) { workers[i].join(); } long finish = System.currentTimeMillis(); float totalTimeSec = (float) (finish - start) / 1000; System.out.print("Concurrency level:\t"); System.out.println(c); System.out.print("Total operations:\t"); System.out.println(c * reps); System.out.print("Time taken for tests:\t"); System.out.print(totalTimeSec); System.out.println(" seconds"); } static void oldPool(int c, long reps) throws Exception { ClientConnectionOperator operator = new DefaultClientConnectionOperator( SchemeRegistryFactory.createDefault()); ConnPerRoute connPerRoute = new ConnPerRouteBean(c); ConnPoolByRoute pool = new ConnPoolByRoute(operator, connPerRoute, c * 10); WorkerThread2[] workers = new WorkerThread2[c]; for (int i = 0; i < workers.length; i++) { workers[i] = new WorkerThread2(pool, reps); } long start = System.currentTimeMillis(); for (int i = 0; i < workers.length; i++) { workers[i].start(); } for (int i = 0; i < workers.length; i++) { workers[i].join(); } long finish = System.currentTimeMillis(); float totalTimeSec = (float) (finish - start) / 1000; System.out.print("Concurrency level:\t"); System.out.println(c); System.out.print("Total operations:\t"); System.out.println(c * reps); System.out.print("Time taken for tests:\t"); System.out.print(totalTimeSec); System.out.println(" seconds"); } static class WorkerThread1 extends Thread { private final HttpConnPool pool; private final long reps; WorkerThread1(final HttpConnPool pool, final long reps) { super(); this.pool = pool; this.reps = reps; } @Override public void run() { for (long c = 0; c < this.reps; c++) { Future<HttpPoolEntry> future = this.pool.lease(ROUTE, null); try { HttpPoolEntry entry = future.get(-1, TimeUnit.MILLISECONDS); this.pool.release(entry, true); } catch (InterruptedException e) { e.printStackTrace(); } catch (ExecutionException e) { e.printStackTrace(); } catch (TimeoutException e) { e.printStackTrace(); } } } } static class WorkerThread2 extends Thread { private final ConnPoolByRoute pool; private final long reps; WorkerThread2(final ConnPoolByRoute pool, final long reps) { super(); this.pool = pool; this.reps = reps; } @Override public void run() { for (long c = 0; c < this.reps; c++) { PoolEntryRequest request = this.pool.requestPoolEntry(ROUTE, null); BasicPoolEntry entry; try { entry = request.getPoolEntry(-1, TimeUnit.MILLISECONDS); this.pool.freeEntry(entry, true, -1, TimeUnit.MILLISECONDS); } catch (ConnectionPoolTimeoutException e) { e.printStackTrace(); } catch (InterruptedException e) { e.printStackTrace(); } } } } }