SolrUtils.java

/*
 * 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.nutch.indexer.solr;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.auth.AuthScope;
import org.apache.commons.httpclient.UsernamePasswordCredentials;
import org.apache.commons.httpclient.params.HttpClientParams;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.mapred.JobConf;
import org.apache.solr.client.solrj.impl.CommonsHttpSolrServer;

import java.net.MalformedURLException;

public class SolrUtils {

  public static Logger LOG = LoggerFactory.getLogger(SolrIndexer.class);

  public static CommonsHttpSolrServer getCommonsHttpSolrServer(JobConf job) throws MalformedURLException {
    HttpClient client=new HttpClient();

    // Check for username/password
    if (job.getBoolean(SolrConstants.USE_AUTH, false)) {
      String username = job.get(SolrConstants.USERNAME);

      LOG.info("Authenticating as: " + username);

      AuthScope scope = new AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT, AuthScope.ANY_REALM, AuthScope.ANY_SCHEME);

      client.getState().setCredentials(scope, new UsernamePasswordCredentials(username, job.get(SolrConstants.PASSWORD)));

      HttpClientParams params = client.getParams();
      params.setAuthenticationPreemptive(true);

      client.setParams(params);
    }

    return new CommonsHttpSolrServer(job.get(SolrConstants.SERVER_URL), client);
  }

  public static String stripNonCharCodepoints(String input) {
    StringBuilder retval = new StringBuilder();
    char ch;

    for (int i = 0; i < input.length(); i++) {
      ch = input.charAt(i);

      // Strip all non-characters http://unicode.org/cldr/utility/list-unicodeset.jsp?a=[:Noncharacter_Code_Point=True:]
      // and non-printable control characters except tabulator, new line and carriage return
      if (ch % 0x10000 != 0xffff && // 0xffff - 0x10ffff range step 0x10000
          ch % 0x10000 != 0xfffe && // 0xfffe - 0x10fffe range
          (ch <= 0xfdd0 || ch >= 0xfdef) && // 0xfdd0 - 0xfdef
          (ch > 0x1F || ch == 0x9 || ch == 0xa || ch == 0xd)) {

        retval.append(ch);
      }
    }

    return retval.toString();
  }
}