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/*
* 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.handler.admin;
import java.io.DataInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.lang.management.ManagementFactory;
import java.lang.management.OperatingSystemMXBean;
import java.lang.management.RuntimeMXBean;
import java.lang.reflect.Method;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.nio.charset.Charset;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.util.Date;
import java.util.Locale;
import org.apache.commons.io.IOUtils;
import org.apache.lucene.LucenePackage;
import org.apache.solr.common.util.NamedList;
import org.apache.solr.common.util.SimpleOrderedMap;
import org.apache.solr.core.CoreContainer;
import org.apache.solr.core.SolrCore;
import org.apache.solr.handler.RequestHandlerBase;
import org.apache.solr.request.SolrQueryRequest;
import org.apache.solr.response.SolrQueryResponse;
import org.apache.solr.schema.IndexSchema;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* This handler returns system info
*
* @since solr 1.2
*/
public class SystemInfoHandler extends RequestHandlerBase
{
private static Logger log = LoggerFactory.getLogger(SystemInfoHandler.class);
// on some platforms, resolving canonical hostname can cause the thread
// to block for several seconds if nameservices aren't available
// so resolve this once per handler instance
//(ie: not static, so core reload will refresh)
private String hostname = null;
private CoreContainer cc;
public SystemInfoHandler() {
super();
init();
}
public SystemInfoHandler(CoreContainer cc) {
super();
this.cc = cc;
init();
}
private void init() {
try {
InetAddress addr = InetAddress.getLocalHost();
hostname = addr.getCanonicalHostName();
} catch (UnknownHostException e) {
//default to null
}
}
@Override
public void handleRequestBody(SolrQueryRequest req, SolrQueryResponse rsp) throws Exception
{
SolrCore core = req.getCore();
if (core != null) rsp.add( "core", getCoreInfo( core, req.getSchema() ) );
boolean solrCloudMode = getCoreContainer(req, core).isZooKeeperAware();
rsp.add( "mode", solrCloudMode ? "solrcloud" : "std");
rsp.add( "lucene", getLuceneInfo() );
rsp.add( "jvm", getJvmInfo() );
rsp.add( "system", getSystemInfo() );
rsp.setHttpCaching(false);
}
private CoreContainer getCoreContainer(SolrQueryRequest req, SolrCore core) {
CoreContainer coreContainer;
if (core != null) {
coreContainer = req.getCore().getCoreDescriptor().getCoreContainer();
} else {
coreContainer = cc;
}
return coreContainer;
}
/**
* Get system info
*/
private SimpleOrderedMap