TransformationSaveService.java

package edu.asu.spring.quadriga.service.transformation.impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Service;

import edu.asu.spring.quadriga.domain.workspace.ITransformationFile;
import edu.asu.spring.quadriga.exceptions.FileStorageException;
import edu.asu.spring.quadriga.service.transformation.ITransformationSaveService;
import edu.asu.spring.quadriga.utilities.IFileSaveUtility;

/**
 * This service contains method to save contents of transformation files to
 * local file storage
 * 
 * @author yoganandakishore
 *
 */

@Service
public class TransformationSaveService implements ITransformationSaveService {

    @Qualifier("transformfileSaveUtil")
    @Autowired
    private IFileSaveUtility transformationFileManager;

    @Override
    public boolean saveFileToLocal(ITransformationFile transformationFile) throws FileStorageException {

        String directoryName = transformationFile.getId();
        String metaDataContent = getMetaDataContent(transformationFile);

        boolean isMetaDataFileSaved = transformationFileManager.saveFiletoDir(directoryName, "metadata.properties",
                metaDataContent);
        boolean isPatternFileSaved = transformationFileManager.saveFiletoDir(directoryName,
                transformationFile.getPatternFileName(), transformationFile.getPatternFileContent());
        boolean isMappingFileSaved = transformationFileManager.saveFiletoDir(directoryName,
                transformationFile.getMappingFileName(), transformationFile.getMappingFileContent());

        return isMetaDataFileSaved && isPatternFileSaved && isMappingFileSaved;
    }

    /**
     * properties of transformationFile namely nameOfUser, title, description,
     * patternfilename, mappingfilename and their values each in a separate
     * line.
     * 
     * @param transformationFile
     * @return String which contains nameofUser, title, description,
     *         patternfilename, mappingfilename each in a separate line
     * 
     */
    private String getMetaDataContent(ITransformationFile transformationFile) {

        StringBuilder content = new StringBuilder();
        content.append("nameOfTheUser=");
        content.append(transformationFile.getUserName());
        content.append(System.lineSeparator());
        content.append("title=");
        content.append(transformationFile.getTitle());
        content.append(System.lineSeparator());
        content.append("description=");
        content.append(transformationFile.getDescription());
        content.append(System.lineSeparator());
        content.append("patternFileName=");
        content.append(transformationFile.getPatternFileName());
        content.append(System.lineSeparator());
        content.append("mappingFileName=");
        content.append(transformationFile.getMappingFileName());

        return content.toString();
    }

    /**
     * appends the location with dirName and fileName and returns the resultant
     * string as absoluteFilePath
     * 
     * @param location
     * @param dirName
     * @param fileName
     * @return
     */
    public String getAbsoluteFilePath(String location, String dirName, String fileName) {

        StringBuffer absoluteFilePath = new StringBuffer();

        absoluteFilePath.append(location);
        absoluteFilePath.append("/");
        absoluteFilePath.append(dirName);
        absoluteFilePath.append("/");
        absoluteFilePath.append(fileName);

        return absoluteFilePath.toString();
    }

    @Override
    public String getTransformFileLocation() {
        return transformationFileManager.getFileLocation();
    }
}