annis.administration.MediaImportHelper.java Source code

Introduction

Here is the source code for annis.administration.MediaImportHelper.java

Source

/*
 * Copyright 2012 SFB 632.
 *
 * Licensed 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 annis.administration;

import java.io.File;
import java.io.IOException;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Map;
import java.util.UUID;
import javax.activation.MimetypesFileTypeMap;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;
import org.slf4j.LoggerFactory;
import org.springframework.dao.DataAccessException;
import org.springframework.jdbc.core.PreparedStatementCallback;

/**
 *
 * @author benjamin
 */
public class MediaImportHelper implements PreparedStatementCallback<Boolean> {

    private static final org.slf4j.Logger log = LoggerFactory.getLogger(MediaImportHelper.class);

    public static final String SQL = "INSERT INTO _media_files VALUES (?, ?, ?, ?)";

    private File fileSource;
    private File fileDestination;
    private String mimeType;
    private long corpusRef;

    public MediaImportHelper(String absolutePath, File dataDir, long corpusRef,
            Map<String, String> mimeTypeMapping) {

        this.fileSource = new File(absolutePath);

        // create a file-name in the form of "filename-UUID.ending", thus we
        // need to split the file name into its components
        String baseName = FilenameUtils.getBaseName(fileSource.getName());
        String extension = FilenameUtils.getExtension(fileSource.getName());
        UUID uuid = UUID.randomUUID();
        fileDestination = new File(dataDir,
                baseName + "_" + uuid.toString() + (extension.isEmpty() ? "" : "." + extension));

        String fileEnding = FilenameUtils.getExtension(absolutePath);
        if (mimeTypeMapping.containsKey(fileEnding)) {
            this.mimeType = mimeTypeMapping.get(fileEnding);
        } else {
            this.mimeType = new MimetypesFileTypeMap().getContentType(fileSource);
        }
        this.corpusRef = corpusRef;

    }

    @Override
    public Boolean doInPreparedStatement(PreparedStatement ps) throws SQLException, DataAccessException {
        ps.setString(1, fileDestination.getName());
        ps.setLong(2, this.corpusRef);
        ps.setString(3, this.mimeType);
        ps.setString(4, fileSource.getName());
        ps.executeUpdate();
        try {
            FileUtils.copyFile(fileSource, fileDestination);
        } catch (IOException ex) {
            log.error("Could not copy file " + fileSource.getPath(), ex);
            return false;
        }

        return true;
    }
}