org.apache.solr.update.StreamingSolrServers.java Source code

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Here is the source code for org.apache.solr.update.StreamingSolrServers.java

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package org.apache.solr.update;

/*
 * 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.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ExecutorService;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.solr.client.solrj.SolrServer;
import org.apache.solr.client.solrj.impl.BinaryRequestWriter;
import org.apache.solr.client.solrj.impl.BinaryResponseParser;
import org.apache.solr.client.solrj.impl.ConcurrentUpdateSolrServer;
import org.apache.solr.common.SolrException;
import org.apache.solr.update.SolrCmdDistributor.Error;
import org.apache.solr.update.processor.DistributedUpdateProcessor;
import org.apache.solr.update.processor.DistributingUpdateProcessorFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class StreamingSolrServers {
    public static Logger log = LoggerFactory.getLogger(StreamingSolrServers.class);

    private HttpClient httpClient;

    private Map<String, ConcurrentUpdateSolrServer> solrServers = new HashMap<>();
    private List<Error> errors = Collections.synchronizedList(new ArrayList<Error>());

    private ExecutorService updateExecutor;

    public StreamingSolrServers(UpdateShardHandler updateShardHandler) {
        this.updateExecutor = updateShardHandler.getUpdateExecutor();

        httpClient = updateShardHandler.getHttpClient();
    }

    public List<Error> getErrors() {
        return errors;
    }

    public void clearErrors() {
        errors.clear();
    }

    public synchronized SolrServer getSolrServer(final SolrCmdDistributor.Req req) {
        String url = getFullUrl(req.node.getUrl());
        ConcurrentUpdateSolrServer server = solrServers.get(url);
        if (server == null) {
            server = new ConcurrentUpdateSolrServer(url, httpClient, 100, 1, updateExecutor, true) {
                @Override
                public void handleError(Throwable ex) {
                    req.trackRequestResult(null, false);
                    log.error("error", ex);
                    Error error = new Error();
                    error.e = (Exception) ex;
                    if (ex instanceof SolrException) {
                        error.statusCode = ((SolrException) ex).code();
                    }
                    error.req = req;
                    errors.add(error);
                }

                @Override
                public void onSuccess(HttpResponse resp) {
                    req.trackRequestResult(resp, true);
                }
            };
            server.setParser(new BinaryResponseParser());
            server.setRequestWriter(new BinaryRequestWriter());
            server.setPollQueueTime(0);
            Set<String> queryParams = new HashSet<>(2);
            queryParams.add(DistributedUpdateProcessor.DISTRIB_FROM);
            queryParams.add(DistributingUpdateProcessorFactory.DISTRIB_UPDATE_PARAM);
            server.setQueryParams(queryParams);
            solrServers.put(url, server);
        }

        return server;
    }

    public synchronized void blockUntilFinished() {
        for (ConcurrentUpdateSolrServer server : solrServers.values()) {
            server.blockUntilFinished();
        }
    }

    public synchronized void shutdown() {
        for (ConcurrentUpdateSolrServer server : solrServers.values()) {
            server.shutdown();
        }
    }

    private String getFullUrl(String url) {
        String fullUrl;
        if (!url.startsWith("http://") && !url.startsWith("https://")) {
            fullUrl = "http://" + url;
        } else {
            fullUrl = url;
        }
        return fullUrl;
    }

    public HttpClient getHttpClient() {
        return httpClient;
    }

    public ExecutorService getUpdateExecutor() {
        return updateExecutor;
    }
}