Java tutorial
/* * The Kuali Financial System, a comprehensive financial management system for higher education. * * Copyright 2005-2014 The Kuali Foundation * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.kuali.kfs.sys.businessobject.lookup; import java.io.File; import java.io.IOException; import java.text.ParseException; import java.util.ArrayList; import java.util.Collection; import java.util.Date; import java.util.List; import java.util.Map; import java.util.Properties; import org.apache.commons.io.DirectoryWalker; import org.apache.commons.io.IOCase; import org.apache.commons.io.filefilter.AbstractFileFilter; import org.apache.commons.io.filefilter.FileFilterUtils; import org.apache.commons.io.filefilter.IOFileFilter; import org.apache.commons.io.filefilter.WildcardFileFilter; import org.apache.commons.lang.StringUtils; import org.kuali.kfs.sys.batch.BatchFile; import org.kuali.kfs.sys.batch.BatchFileUtils; import org.kuali.kfs.sys.batch.service.BatchFileAdminAuthorizationService; import org.kuali.kfs.sys.util.KfsDateUtils; import org.kuali.rice.core.api.datetime.DateTimeService; import org.kuali.rice.kns.lookup.AbstractLookupableHelperServiceImpl; import org.kuali.rice.kns.lookup.HtmlData; import org.kuali.rice.kns.lookup.HtmlData.AnchorHtmlData; import org.kuali.rice.kns.web.ui.Field; import org.kuali.rice.kns.web.ui.Row; import org.kuali.rice.krad.bo.BusinessObject; import org.kuali.rice.krad.util.GlobalVariables; import org.kuali.rice.krad.util.KRADConstants; import org.kuali.rice.krad.util.UrlFactory; public class BatchFileLookupableHelperServiceImpl extends AbstractLookupableHelperServiceImpl { protected DateTimeService dateTimeService; protected BatchFileAdminAuthorizationService batchFileAdminAuthorizationService; @Override public List<? extends BusinessObject> getSearchResults(Map<String, String> fieldValues) { List<BatchFile> results = new ArrayList<BatchFile>(); IOFileFilter filter = FileFilterUtils.fileFileFilter(); IOFileFilter pathBasedFilter = getPathBasedFileFilter(); if (pathBasedFilter != null) { filter = FileFilterUtils.andFileFilter(filter, pathBasedFilter); } String fileNamePattern = fieldValues.get("fileName"); IOFileFilter fileNameBasedFilter = getFileNameBasedFilter(fileNamePattern); if (fileNameBasedFilter != null) { filter = FileFilterUtils.andFileFilter(filter, fileNameBasedFilter); } String lastModifiedDate = fieldValues.get("lastModifiedDate"); IOFileFilter lastModifiedDateBasedFilter = getLastModifiedDateBasedFilter(lastModifiedDate); if (lastModifiedDateBasedFilter != null) { filter = FileFilterUtils.andFileFilter(filter, lastModifiedDateBasedFilter); } BatchFileFinder finder = new BatchFileFinder(results, filter); List<File> rootDirectories = BatchFileUtils.retrieveBatchFileLookupRootDirectories(); finder.find(rootDirectories); return results; } protected IOFileFilter getPathBasedFileFilter() { List<File> selectedFiles = getSelectedDirectories(getSelectedPaths()); if (selectedFiles.isEmpty()) { return null; } IOFileFilter fileFilter = null; for (File selectedFile : selectedFiles) { IOFileFilter subFilter = new SubDirectoryFileFilter(selectedFile); if (fileFilter == null) { fileFilter = subFilter; } else { fileFilter = FileFilterUtils.orFileFilter(fileFilter, subFilter); } } return fileFilter; } protected IOFileFilter getFileNameBasedFilter(String fileNamePattern) { if (StringUtils.isNotBlank(fileNamePattern)) { return new WildcardFileFilter(fileNamePattern, IOCase.INSENSITIVE); } return null; } protected IOFileFilter getLastModifiedDateBasedFilter(String lastModifiedDatePattern) { if (StringUtils.isBlank(lastModifiedDatePattern)) { return null; } try { if (lastModifiedDatePattern.startsWith("<=")) { String dateString = StringUtils.removeStart(lastModifiedDatePattern, "<="); Date toDate = dateTimeService.convertToDate(dateString); return new LastModifiedDateFileFilter(null, toDate); } if (lastModifiedDatePattern.startsWith(">=")) { String dateString = StringUtils.removeStart(lastModifiedDatePattern, ">="); Date fromDate = dateTimeService.convertToDate(dateString); return new LastModifiedDateFileFilter(fromDate, null); } if (lastModifiedDatePattern.contains("..")) { String[] dates = StringUtils.splitByWholeSeparator(lastModifiedDatePattern, "..", 2); Date fromDate = dateTimeService.convertToDate(dates[0]); Date toDate = dateTimeService.convertToDate(dates[1]); return new LastModifiedDateFileFilter(fromDate, toDate); } } catch (ParseException e) { throw new RuntimeException("Can't parse date", e); } throw new RuntimeException("Unable to perform search using last modified date " + lastModifiedDatePattern); } protected List<File> getSelectedDirectories(String[] selectedPaths) { List<File> directories = new ArrayList<File>(); if (selectedPaths != null) { for (String selectedPath : selectedPaths) { File directory = new File(BatchFileUtils.resolvePathToAbsolutePath(selectedPath)); if (!directory.exists()) { throw new RuntimeException( "Non existent directory " + BatchFileUtils.resolvePathToAbsolutePath(selectedPath)); } directories.add(directory); } } return directories; } /** * KRAD Conversion: gets rows after customizing the field values * * No use of data dictionary */ protected String[] getSelectedPaths() { List<Row> rows = getRows(); if (rows == null) { return null; } for (Row row : rows) { for (Field field : row.getFields()) { if ("path".equals(field.getPropertyName()) && Field.MULTISELECT.equals(field.getFieldType())) { String[] values = field.getPropertyValues(); return values; } } } return null; } protected class SubDirectoryFileFilter extends AbstractFileFilter { private File superDirectory; public SubDirectoryFileFilter(File superDirectory) { this.superDirectory = superDirectory.getAbsoluteFile(); } @Override public boolean accept(File file) { file = file.getAbsoluteFile(); file = file.getParentFile(); while (file != null) { if (file.equals(superDirectory)) { return true; } file = file.getParentFile(); } return false; } } protected class LastModifiedDateFileFilter extends AbstractFileFilter { private Date fromDate; private Date toDate; public LastModifiedDateFileFilter(Date fromDate, Date toDate) { this.fromDate = fromDate; this.toDate = toDate; } @Override public boolean accept(File file) { Date lastModifiedDate = KfsDateUtils.clearTimeFields(new Date(file.lastModified())); if (fromDate != null && fromDate.after(lastModifiedDate)) { return false; } if (toDate != null && toDate.before(lastModifiedDate)) { return false; } return true; } } protected class BatchFileFinder extends DirectoryWalker { private List<BatchFile> results; public BatchFileFinder(List<BatchFile> results, IOFileFilter fileFilter) { super(null, fileFilter, -1); this.results = results; } public void find(Collection<File> rootDirectories) { try { for (File rootDirectory : rootDirectories) { walk(rootDirectory, null); } } catch (IOException e) { throw new RuntimeException("Error performing lookup", e); } } /** * @see org.apache.commons.io.DirectoryWalker#handleFile(java.io.File, int, java.util.Collection) */ @Override protected void handleFile(File file, int depth, Collection results) throws IOException { super.handleFile(file, depth, results); BatchFile batchFile = new BatchFile(); batchFile.setFile(file); this.results.add(batchFile); } } public void setDateTimeService(DateTimeService dateTimeService) { this.dateTimeService = dateTimeService; } @Override public List<HtmlData> getCustomActionUrls(BusinessObject businessObject, List pkNames) { List<HtmlData> links = new ArrayList<HtmlData>(); BatchFile batchFile = (BatchFile) businessObject; if (canDownloadFile(batchFile)) { links.add(getDownloadUrl(batchFile)); } if (canDeleteFile(batchFile)) { links.add(getDeleteUrl(batchFile)); } return links; } protected boolean canDownloadFile(BatchFile batchFile) { return batchFileAdminAuthorizationService.canDownload(batchFile, GlobalVariables.getUserSession().getPerson()); } protected boolean canDeleteFile(BatchFile batchFile) { return batchFileAdminAuthorizationService.canDelete(batchFile, GlobalVariables.getUserSession().getPerson()); } protected HtmlData getDownloadUrl(BatchFile batchFile) { Properties parameters = new Properties(); parameters.put("filePath", BatchFileUtils.pathRelativeToRootDirectory(batchFile.retrieveFile().getAbsolutePath())); parameters.put(KRADConstants.DISPATCH_REQUEST_PARAMETER, "download"); String href = UrlFactory.parameterizeUrl("../batchFileAdmin.do", parameters); return new AnchorHtmlData(href, "download", "Download"); } protected HtmlData getDeleteUrl(BatchFile batchFile) { Properties parameters = new Properties(); parameters.put("filePath", BatchFileUtils.pathRelativeToRootDirectory(batchFile.retrieveFile().getAbsolutePath())); parameters.put(KRADConstants.DISPATCH_REQUEST_PARAMETER, "delete"); String href = UrlFactory.parameterizeUrl("../batchFileAdmin.do", parameters); return new AnchorHtmlData(href, "delete", "Delete"); } /** * @see org.kuali.rice.kns.lookup.AbstractLookupableHelperServiceImpl#validateSearchParameters(java.util.Map) */ @Override public void validateSearchParameters(Map fieldValues) { super.validateSearchParameters(fieldValues); String[] selectedPaths = getSelectedPaths(); if (selectedPaths != null) { for (String selectedPath : selectedPaths) { String resolvedPath = BatchFileUtils.resolvePathToAbsolutePath(selectedPath); if (!BatchFileUtils.isDirectoryAccessible(resolvedPath)) { throw new RuntimeException("Can't access path " + selectedPath); } } } } /** * Sets the batchFileAdminAuthorizationService attribute value. * @param batchFileAdminAuthorizationService The batchFileAdminAuthorizationService to set. */ public void setBatchFileAdminAuthorizationService( BatchFileAdminAuthorizationService batchFileAdminAuthorizationService) { this.batchFileAdminAuthorizationService = batchFileAdminAuthorizationService; } }