BirtFileReaderServiceBean.java

package de.interseroh.report.services;

import java.io.File;
import java.io.FilenameFilter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import de.interseroh.report.exception.BirtSystemException;
import de.interseroh.report.model.ReportReference;

/**
 * this class give back all reports for current user with correspond role.
 * Created by hhopf on 06.07.15.
 */
@Service
public class BirtFileReaderServiceBean implements BirtFileReaderService {

	private static final String REPORT_FILESUFFIX = ".rptdesign";

	public static final int REPORT_FILESUFFIX_LENGTH = REPORT_FILESUFFIX
			.length();

	private static final Logger logger = LoggerFactory
			.getLogger(BirtFileReaderServiceBean.class);

	@Autowired
	private SecurityService securityControl;

	/**
	 * deliver all file names (report names) in specified directory.
	 *
	 * @return names of all files in this directory (only reports)
	 */
	@Override
	public List<ReportReference> getReportReferences() {

		final File directory = securityControl.getTmpDirectory();
		logger.debug("call to get role of current user in directory {}",
				directory);

		if (directory == null) {
			return Collections.emptyList();
		}

		List<ReportReference> reportReferences = new ArrayList<>();
		List<String> stripRoleNames = securityControl.getStripRoleNames();

		try {
			if (directory.exists() && directory.canRead() && directory
					.isDirectory()) {
				FilenameFilter filter = new FilenameFilter() {
					@Override
					public boolean accept(File dir, String name) {
						return name.endsWith(".rptdesign");
					}
				};
				File[] files = directory.listFiles(filter);
				if (files != null) {
					for (File file : files) {
						String fileName = file.getName().substring(0,
								file.getName().length()
										- REPORT_FILESUFFIX_LENGTH);
						for (String role : stripRoleNames) {
							if (role.equalsIgnoreCase(fileName)) {
								reportReferences
										.add(new ReportReference(fileName,
												"reports..."));
							}
						}
					}
				}
			}
		} catch (Exception e) {
			logger.debug(e.getMessage(), e);
			throw new BirtSystemException(String.format(
					"Error during to fill report list in directory: %s",
					directory), e.getCause());
		}

		return reportReferences;
	}

}