/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.core;
import org.apache.solr.handler.RequestHandlerBase;
import org.apache.solr.request.SolrQueryRequest;
import org.apache.solr.request.SolrQueryResponse;
import org.apache.solr.request.SolrRequestHandler;
import org.apache.solr.util.AbstractSolrTestCase;
import org.apache.solr.util.plugin.SolrCoreAware;
import java.util.concurrent.*;
import java.util.*;
public class SolrCoreTest extends AbstractSolrTestCase {
public String getSchemaFile() { return "schema.xml"; }
public String getSolrConfigFile() { return "solrconfig.xml"; }
public void testRequestHandlerRegistry() {
SolrCore core = h.getCore();
EmptyRequestHandler handler1 = new EmptyRequestHandler();
EmptyRequestHandler handler2 = new EmptyRequestHandler();
String path = "/this/is A path /that won't be registered!";
SolrRequestHandler old = core.registerRequestHandler( path, handler1 );
assertNull( old ); // should not be anything...
assertEquals( core.getRequestHandlers().get( path ), handler1 );
old = core.registerRequestHandler( path, handler2 );
assertEquals( old, handler1 ); // should pop out the old one
assertEquals( core.getRequestHandlers().get( path ), handler2 );
}
public void testClose() throws Exception {
final CoreContainer cores = h.getCoreContainer();
SolrCore core = cores.getCore("");
ClosingRequestHandler handler1 = new ClosingRequestHandler();
handler1.inform( core );
String path = "/this/is A path /that won't be registered!";
SolrRequestHandler old = core.registerRequestHandler( path, handler1 );
assertNull( old ); // should not be anything...
assertEquals( core.getRequestHandlers().get( path ), handler1 );
core.close();
cores.shutdown();
assertTrue("Handler not closed", handler1.closed == true);
}
public void testRefCount() throws Exception {
SolrCore core = h.getCore();
assertTrue("Refcount != 1", core.getOpenCount() == 1);
final CoreContainer cores = h.getCoreContainer();
SolrCore c1 = cores.getCore("");
assertTrue("Refcount != 2", core.getOpenCount() == 2);
ClosingRequestHandler handler1 = new ClosingRequestHandler();
handler1.inform( core );
String path = "/this/is A path /that won't be registered!";
SolrRequestHandler old = core.registerRequestHandler( path, handler1 );
assertNull( old ); // should not be anything...
assertEquals( core.getRequestHandlers().get( path ), handler1 );
SolrCore c2 = cores.getCore("");
c1.close();
assertTrue("Refcount < 1", core.getOpenCount() >= 1);
assertTrue("Handler is closed", handler1.closed == false);
c1 = cores.getCore("");
assertTrue("Refcount < 2", core.getOpenCount() >= 2);
assertTrue("Handler is closed", handler1.closed == false);
c2.close();
assertTrue("Refcount < 1", core.getOpenCount() >= 1);
assertTrue("Handler is closed", handler1.closed == false);
c1.close();
cores.shutdown();
assertTrue("Refcount != 0", core.getOpenCount() == 0);
assertTrue("Handler not closed", core.isClosed() && handler1.closed == true);
}
public void testRefCountMT() throws Exception {
SolrCore core = h.getCore();
assertTrue("Refcount != 1", core.getOpenCount() == 1);
final ClosingRequestHandler handler1 = new ClosingRequestHandler();
handler1.inform(core);
String path = "/this/is A path /that won't be registered!";
SolrRequestHandler old = core.registerRequestHandler(path, handler1);
assertNull(old); // should not be anything...
assertEquals(core.getRequestHandlers().get(path), handler1);
final int LOOP = 100;
final int MT = 16;
ExecutorService service = Executors.newFixedThreadPool(MT);
List<Callable<Integer>> callees = new ArrayList<Callable<Integer>>(MT);
final CoreContainer cores = h.getCoreContainer();
for (int i = 0; i < MT; ++i) {
Callable<Integer> call = new Callable<Integer>() {
void yield(int n) {
try {
Thread.sleep(0, (n % 13 + 1) * 10);
} catch (InterruptedException xint) {
}
}
public Integer call() {
SolrCore core = null;
int r = 0;
try {
for (int l = 0; l < LOOP; ++l) {
r += 1;
core = cores.getCore("");
// sprinkle concurrency hinting...
yield(l);
assertTrue("Refcount < 1", core.getOpenCount() >= 1);
yield(l);
assertTrue("Refcount > 17", core.getOpenCount() <= 17);
yield(l);
assertTrue("Handler is closed", handler1.closed == false);
yield(l);
core.close();
core = null;
yield(l);
}
return r;
} finally {
if (core != null)
core.close();
}
}
};
callees.add(call);
}
List<Future<Integer>> results = service.invokeAll(callees);
for (Future<Integer> result : results) {
assertTrue("loop=" + result.get() +" < " + LOOP, result.get() >= LOOP);
}
cores.shutdown();
assertTrue("Refcount != 0", core.getOpenCount() == 0);
assertTrue("Handler not closed", core.isClosed() && handler1.closed == true);
service.shutdown();
assertTrue("Running for too long...", service.awaitTermination(60, TimeUnit.SECONDS));
}
}
class ClosingRequestHandler extends EmptyRequestHandler implements SolrCoreAware {
boolean closed = false;
public void inform(SolrCore core) {
core.addCloseHook( new CloseHook() {
public void close(SolrCore core) {
closed = true;
}
});
}
}
/**
* An empty handler for testing
*/
class EmptyRequestHandler extends RequestHandlerBase
{
@Override
public void handleRequestBody(SolrQueryRequest req, SolrQueryResponse rsp) throws Exception {
// nothing!
}
@Override public String getDescription() { return null; }
@Override public String getSource() { return null; }
@Override public String getSourceId() { return null; }
@Override public String getVersion() { return null; }
}