package org.apache.gaelucene.dashboard;
/**
* 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.
*/
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import org.apache.gaelucene.auth.GAELuceneAuthException;
import org.apache.gaelucene.auth.GAELuceneOnlineUser;
import org.apache.gaelucene.auth.GAELuceneOnlineUserManager;
import org.apache.gaelucene.auth.GAELucenePermission;
import org.apache.lucene.index.GAEIndexReaderPool;
public class IndexReaderPoolWebHandler {
// index readers pool
private static GAEIndexReaderPool readerPool = GAEIndexReaderPool.getInstance();
private GAELuceneOnlineUserManager userManager = GAELuceneOnlineUserManager.getInstance();
public void processShowPoolStats(HttpServletRequest request) throws GAELuceneAuthException, IOException {
GAELuceneOnlineUser onlineUser = userManager.getOnlineUser(request);
GAELucenePermission permission = onlineUser.getPermission();
if (!permission.isAuthenticated()) {
throw new GAELuceneAuthException(0);
}
long freeMemory = Runtime.getRuntime().freeMemory();
long totalMemory = Runtime.getRuntime().totalMemory();
long maxMemory = Runtime.getRuntime().maxMemory();
request.setAttribute("Runtime.totalMemory", totalMemory);
request.setAttribute("Runtime.maxMemory", maxMemory);
request.setAttribute("Runtime.freeMemory", freeMemory);
if (readerPool == null) {
request.setAttribute("Pool.stat",
"The pool HAS NOT BEEN initialized! Please check your log for detail!");
} else {
ByteArrayOutputStream out = new ByteArrayOutputStream();
readerPool.showPoolStats(out);
request.setAttribute("Pool.stat", new String(out.toByteArray(), "UTF-8"));
}
}
}