org.apache.solr.handler.admin.LoggingHandler Maven / Gradle / Ivy
/*
* 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.lang.invoke.MethodHandles;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.solr.common.SolrDocumentList;
import org.apache.solr.common.SolrException;
import org.apache.solr.common.SolrException.ErrorCode;
import org.apache.solr.common.params.SolrParams;
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.logging.LogWatcher;
import org.apache.solr.logging.LoggerInfo;
import org.apache.solr.request.SolrQueryRequest;
import org.apache.solr.response.SolrQueryResponse;
import org.apache.solr.util.plugin.SolrCoreAware;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A request handler to show which loggers are registered and allows you to set them
*
* @since 4.0
*/
public class LoggingHandler extends RequestHandlerBase implements SolrCoreAware {
private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
private LogWatcher watcher;
public LoggingHandler(CoreContainer cc) {
this.watcher = cc.getLogging();
}
public LoggingHandler() {
}
@Override
public void inform(SolrCore core) {
if (watcher == null) {
watcher = core.getCoreContainer().getLogging();
}
}
@Override
public void handleRequestBody(SolrQueryRequest req, SolrQueryResponse rsp) throws Exception {
// Don't do anything if the framework is unknown
if (watcher==null) {
rsp.add("error", "Logging Not Initialized");
return;
}
rsp.add("watcher", watcher.getName());
SolrParams params = req.getParams();
if(params.get("threshold")!=null) {
watcher.setThreshold(params.get("threshold"));
}
// Write something at each level
if(params.get("test")!=null) {
log.trace("trace message");
log.debug( "debug message");
log.info("info (with exception)", new RuntimeException("test") );
log.warn("warn (with exception)", new RuntimeException("test") );
log.error("error (with exception)", new RuntimeException("test") );
}
String[] set = params.getParams("set");
if (set != null) {
for (String pair : set) {
String[] split = pair.split(":");
if (split.length != 2) {
throw new SolrException(
SolrException.ErrorCode.SERVER_ERROR,
"Invalid format, expected level:value, got " + pair);
}
String category = split[0];
String level = split[1];
watcher.setLogLevel(category, level);
}
}
String since = req.getParams().get("since");
if(since != null) {
long time = -1;
try {
time = Long.parseLong(since);
}
catch(Exception ex) {
throw new SolrException(ErrorCode.BAD_REQUEST, "invalid timestamp: "+since);
}
AtomicBoolean found = new AtomicBoolean(false);
SolrDocumentList docs = watcher.getHistory(time, found);
if(docs==null) {
rsp.add("error", "History not enabled");
return;
}
else {
SimpleOrderedMap