com.logsniffer.web.controller.report.ElasticEventsController.java Source code

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Here is the source code for com.logsniffer.web.controller.report.ElasticEventsController.java

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/*******************************************************************************
 * logsniffer, open source tool for viewing, monitoring and analysing log data.
 * Copyright (c) 2015 Scaleborn UG, www.scaleborn.com
 *
 * logsniffer is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * logsniffer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *******************************************************************************/
package com.logsniffer.web.controller.report;

import java.io.IOException;
import java.io.OutputStream;

import javax.servlet.http.HttpServletResponse;

import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpEntity;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import com.logsniffer.app.ElasticSearchAppConfig.ClientCallback;
import com.logsniffer.app.ElasticSearchAppConfig.ElasticClientTemplate;

/**
 * Provides searching for events persisted in the Elasticsearch index.
 * 
 * @author mbok
 * 
 */
@RestController
public class ElasticEventsController {
    private final Logger logger = LoggerFactory.getLogger(getClass());

    @Value(value = "${logsniffer.es.indexName}")
    private String indexName;

    @Autowired
    private ElasticClientTemplate clientTpl;

    @RequestMapping(value = "/reports/eventSearch", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_VALUE)
    public void eventSearch(final HttpEntity<String> httpEntity, final HttpServletResponse response)
            throws IOException {
        long start = System.currentTimeMillis();
        String jsonRequest = httpEntity.getBody();
        final SearchRequest searchRequest = new SearchRequest(indexName);
        try {
            searchRequest.source(jsonRequest);
            searchRequest.types("event");
            SearchResponse r = clientTpl.executeWithClient(new ClientCallback<SearchResponse>() {
                @Override
                public SearchResponse execute(final Client client) {
                    return client.search(searchRequest).actionGet();
                }
            });
            response.setContentType(MediaType.APPLICATION_JSON_VALUE);
            OutputStream responseStream = response.getOutputStream();
            XContentBuilder builder = XContentFactory.jsonBuilder(responseStream);
            builder.startObject();
            r.toXContent(builder, ToXContent.EMPTY_PARAMS);
            builder.endObject();
            builder.close();
            responseStream.close();
        } finally {
            logger.debug("Executed search in {}ms: {}", System.currentTimeMillis() - start, jsonRequest);
        }
    }
}