*/
    @Deprecated
    void setLog(Log log);

    /**
     * Furnish access to the standard Maven logging mechanism which is managed in this base class.
     *
     * @return a log4j-like logger object which allows plugins to create messages at levels of <code>"debug"</code>,
     * <code>"info"</code>, <code>"warn"</code>, and <code>"error"</code>.
     * @deprecated Use SLF4J directly
     */
    @Deprecated

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.admin.pathmap;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.Constants;
import org.codelibs.fess.annotation.Secured;
import org.codelibs.fess.app.pager.PathMapPager;
import org.codelibs.fess.app.service.PathMappingService;

import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.pdfbox.Loader;
import org.apache.pdfbox.cos.COSInputStream;
import org.apache.pdfbox.io.RandomAccessReadBuffer;
import org.apache.pdfbox.pdmodel.PDDocument;

import java.nio.file.attribute.UserPrincipal;
import java.util.Date;
import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.io.CloseableUtil;
import org.codelibs.core.io.InputStreamUtil;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.timer.TimeoutManager;

import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.message.BasicNameValuePair;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.core.io.InputStreamUtil;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.misc.Pair;

 */
package org.codelibs.fess.app.web.admin.keymatch;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.Constants;
import org.codelibs.fess.annotation.Secured;
import org.codelibs.fess.app.pager.KeyMatchPager;
import org.codelibs.fess.app.service.KeyMatchService;

 */
package org.codelibs.fess.crawler.util;

import java.io.IOException;
import java.io.Reader;
import java.util.HashSet;
import java.util.Set;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;

/**
 * Utility class for text normalization and processing.
 *

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.app.pager.StemmerOverridePager;
import org.codelibs.fess.app.service.StemmerOverrideService;
import org.codelibs.fess.app.web.CrudMode;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.misc.Tuple3;
import org.codelibs.fess.Constants;
import org.codelibs.fess.entity.SearchRequestParams.SearchRequestType;

```
cd /usr/hdp/current/spark2-client
su spark
```

The following example uses _log4j.properties_ as the input file:

#### **4.2.1 Upload the input file to HDFS:**

```
hadoop fs -copyFromLocal /etc/hadoop/conf/log4j.properties
          s3a://testbucket/testdata
```

#### **4.2.2  Run the Spark shell:**

```