// ========================================================================
// Copyright (c) 2004-2009 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
package org.eclipse.jetty.server;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import org.eclipse.jetty.http.HttpContent;
import org.eclipse.jetty.http.MimeTypes;
import org.eclipse.jetty.util.resource.Resource;
import org.eclipse.jetty.util.resource.ResourceCollection;
import org.junit.Test;
public class ResourceCacheTest
{
@Test
public void testMutlipleSources1() throws Exception
{
ResourceCollection rc = new ResourceCollection(new String[]{
"../jetty-util/src/test/resources/org/eclipse/jetty/util/resource/one/",
"../jetty-util/src/test/resources/org/eclipse/jetty/util/resource/two/",
"../jetty-util/src/test/resources/org/eclipse/jetty/util/resource/three/"
});
Resource[] r = rc.getResources();
MimeTypes mime = new MimeTypes();
ResourceCache rc3 = new ResourceCache(null,r[2],mime,false);
ResourceCache rc2 = new ResourceCache(rc3,r[1],mime,false);
ResourceCache rc1 = new ResourceCache(rc2,r[0],mime,false);
assertEquals("1 - one", getContent(rc1, "1.txt"));
assertEquals("2 - two", getContent(rc1, "2.txt"));
assertEquals("3 - three", getContent(rc1, "3.txt"));
assertEquals("1 - two", getContent(rc2, "1.txt"));
assertEquals("2 - two", getContent(rc2, "2.txt"));
assertEquals("3 - three", getContent(rc2, "3.txt"));
assertEquals(null, getContent(rc3, "1.txt"));
assertEquals("2 - three", getContent(rc3, "2.txt"));
assertEquals("3 - three", getContent(rc3, "3.txt"));
}
@Test
public void testUncacheable() throws Exception
{
ResourceCollection rc = new ResourceCollection(new String[]{
"../jetty-util/src/test/resources/org/eclipse/jetty/util/resource/one/",
"../jetty-util/src/test/resources/org/eclipse/jetty/util/resource/two/",
"../jetty-util/src/test/resources/org/eclipse/jetty/util/resource/three/"
});
Resource[] r = rc.getResources();
MimeTypes mime = new MimeTypes();
ResourceCache rc3 = new ResourceCache(null,r[2],mime,false);
ResourceCache rc2 = new ResourceCache(rc3,r[1],mime,false)
{
@Override
public boolean isCacheable(Resource resource)
{
return super.isCacheable(resource) && resource.getName().indexOf("2.txt")<0;
}
};
ResourceCache rc1 = new ResourceCache(rc2,r[0],mime,false);
assertEquals("1 - one", getContent(rc1, "1.txt"));
assertEquals("2 - two", getContent(rc1, "2.txt"));
assertEquals("3 - three", getContent(rc1, "3.txt"));
assertEquals("1 - two", getContent(rc2, "1.txt"));
assertEquals("2 - two", getContent(rc2, "2.txt"));
assertEquals("3 - three", getContent(rc2, "3.txt"));
assertEquals(null, getContent(rc3, "1.txt"));
assertEquals("2 - three", getContent(rc3, "2.txt"));
assertEquals("3 - three", getContent(rc3, "3.txt"));
}
@Test
public void testResourceCache() throws Exception
{
final Resource directory;
File[] files=new File[10];
String[] names=new String[files.length];
ResourceCache cache;
for (int i=0;i<files.length;i++)
{
files[i]=File.createTempFile("R-"+i+"-",".txt");
files[i].deleteOnExit();
names[i]=files[i].getName();
FileOutputStream out = new FileOutputStream(files[i]);
for (int j=0;j<(i*10-1);j++)
out.write(' ');
out.write('\n');
out.close();
}
directory=Resource.newResource(files[0].getParentFile().getAbsolutePath());
cache=new ResourceCache(null,directory,new MimeTypes(),false);
cache.setMaxCacheSize(95);
cache.setMaxCachedFileSize(85);
cache.setMaxCachedFiles(4);
assertTrue(cache.lookup("does not exist")==null);
assertTrue(cache.lookup(names[9]) instanceof HttpContent.ResourceAsHttpContent);
HttpContent content;
content=cache.lookup(names[8]);
assertTrue(content!=null);
assertEquals(80,content.getContentLength());
assertEquals(80,cache.getCachedSize());
assertEquals(1,cache.getCachedFiles());
Thread.sleep(200);
content=cache.lookup(names[1]);
assertEquals(90,cache.getCachedSize());
assertEquals(2,cache.getCachedFiles());
Thread.sleep(200);
content=cache.lookup(names[2]);
assertEquals(30,cache.getCachedSize());
assertEquals(2,cache.getCachedFiles());
Thread.sleep(200);
content=cache.lookup(names[3]);
assertEquals(60,cache.getCachedSize());
assertEquals(3,cache.getCachedFiles());
Thread.sleep(200);
content=cache.lookup(names[4]);
assertEquals(90,cache.getCachedSize());
assertEquals(3,cache.getCachedFiles());
Thread.sleep(200);
content=cache.lookup(names[5]);
assertEquals(90,cache.getCachedSize());
assertEquals(2,cache.getCachedFiles());
Thread.sleep(200);
content=cache.lookup(names[6]);
assertEquals(60,cache.getCachedSize());
assertEquals(1,cache.getCachedFiles());
Thread.sleep(200);
FileOutputStream out = new FileOutputStream(files[6]);
out.write(' ');
out.close();
content=cache.lookup(names[7]);
assertEquals(70,cache.getCachedSize());
assertEquals(1,cache.getCachedFiles());
Thread.sleep(200);
content=cache.lookup(names[6]);
assertEquals(71,cache.getCachedSize());
assertEquals(2,cache.getCachedFiles());
Thread.sleep(200);
content=cache.lookup(names[0]);
assertEquals(72,cache.getCachedSize());
assertEquals(3,cache.getCachedFiles());
Thread.sleep(200);
content=cache.lookup(names[1]);
assertEquals(82,cache.getCachedSize());
assertEquals(4,cache.getCachedFiles());
Thread.sleep(200);
content=cache.lookup(names[2]);
assertEquals(32,cache.getCachedSize());
assertEquals(4,cache.getCachedFiles());
Thread.sleep(200);
content=cache.lookup(names[3]);
assertEquals(61,cache.getCachedSize());
assertEquals(4,cache.getCachedFiles());
Thread.sleep(200);
cache.flushCache();
assertEquals(0,cache.getCachedSize());
assertEquals(0,cache.getCachedFiles());
cache.flushCache();
}
static String getContent(Resource r, String path) throws Exception
{
StringBuilder buffer = new StringBuilder();
String line = null;
BufferedReader br = new BufferedReader(new InputStreamReader(r.addPath(path).getURL().openStream()));
while((line=br.readLine())!=null)
buffer.append(line);
br.close();
return buffer.toString();
}
static String getContent(ResourceCache rc, String path) throws Exception
{
HttpContent content = rc.lookup(path);
if (content==null)
return null;
return content.getIndirectBuffer().toString();
}
}