Java tutorial
/** * The software subject to this notice and license includes both human readable * source code form and machine readable, binary, object code form. The NCI OCR * Software was developed in conjunction with the National Cancer Institute * (NCI) by NCI employees and 5AM Solutions, Inc. (5AM). To the extent * government employees are authors, any rights in such works shall be subject * to Title 17 of the United States Code, section 105. * * This NCI OCR Software License (the License) is between NCI and You. You (or * Your) shall mean a person or an entity, and all other entities that control, * are controlled by, or are under common control with the entity. Control for * purposes of this definition means (i) the direct or indirect power to cause * the direction or management of such entity, whether by contract or otherwise, * or (ii) ownership of fifty percent (50%) or more of the outstanding shares, * or (iii) beneficial ownership of such entity. * * This License is granted provided that You agree to the conditions described * below. NCI grants You a non-exclusive, worldwide, perpetual, fully-paid-up, * no-charge, irrevocable, transferable and royalty-free right and license in * its rights in the NCI OCR Software to (i) use, install, access, operate, * execute, copy, modify, translate, market, publicly display, publicly perform, * and prepare derivative works of the NCI OCR Software; (ii) distribute and * have distributed to and by third parties the NCI OCR Software and any * modifications and derivative works thereof; and (iii) sublicense the * foregoing rights set out in (i) and (ii) to third parties, including the * right to license such rights to further third parties. For sake of clarity, * and not by way of limitation, NCI shall have no right of accounting or right * of payment from You or Your sub-licensees for the rights granted under this * License. This License is granted at no charge to You. * * Your redistributions of the source code for the Software must retain the * above copyright notice, this list of conditions and the disclaimer and * limitation of liability of Article 6, below. Your redistributions in object * code form must reproduce the above copyright notice, this list of conditions * and the disclaimer of Article 6 in the documentation and/or other materials * provided with the distribution, if any. * * Your end-user documentation included with the redistribution, if any, must * include the following acknowledgment: This product includes software * developed by 5AM and the National Cancer Institute. If You do not include * such end-user documentation, You shall include this acknowledgment in the * Software itself, wherever such third-party acknowledgments normally appear. * * You may not use the names "The National Cancer Institute", "NCI", or "5AM" * to endorse or promote products derived from this Software. This License does * not authorize You to use any trademarks, service marks, trade names, logos or * product names of either NCI or 5AM, except as required to comply with the * terms of this License. * * For sake of clarity, and not by way of limitation, You may incorporate this * Software into Your proprietary programs and into any third party proprietary * programs. However, if You incorporate the Software into third party * proprietary programs, You agree that You are solely responsible for obtaining * any permission from such third parties required to incorporate the Software * into such third party proprietary programs and for informing Your * sub-licensees, including without limitation Your end-users, of their * obligation to secure any required permissions from such third parties before * incorporating the Software into such third party proprietary software * programs. In the event that You fail to obtain such permissions, You agree * to indemnify NCI for any claims against NCI by such third parties, except to * the extent prohibited by law, resulting from Your failure to obtain such * permissions. * * For sake of clarity, and not by way of limitation, You may add Your own * copyright statement to Your modifications and to the derivative works, and * You may provide additional or different license terms and conditions in Your * sublicenses of modifications of the Software, or any derivative works of the * Software as a whole, provided Your use, reproduction, and distribution of the * Work otherwise complies with the conditions stated in this License. * * THIS SOFTWARE IS PROVIDED "AS IS," AND ANY EXPRESSED OR IMPLIED WARRANTIES, * (INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, * NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE) ARE DISCLAIMED. IN NO * EVENT SHALL THE NATIONAL CANCER INSTITUTE, 5AM SOLUTIONS, INC. OR THEIR * AFFILIATES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package gov.nih.nci.firebird.service.registration; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.util.Collection; import gov.nih.nci.firebird.service.file.FileService; import org.apache.commons.io.IOUtils; import org.apache.log4j.Logger; import gov.nih.nci.firebird.data.AbstractRegistration; import gov.nih.nci.firebird.data.AbstractRegistrationForm; import gov.nih.nci.firebird.data.FirebirdFile; import gov.nih.nci.firebird.data.InvestigatorProfile; import gov.nih.nci.firebird.data.Person; import gov.nih.nci.firebird.service.pdf.PdfService; /** * Base class for PDF generators. */ abstract class AbstractPdfGenerator { private final AbstractRegistration registration; private final PdfService pdfService; private final FileService fileService; AbstractPdfGenerator(AbstractRegistration registration, PdfService pdfService, FileService fileService) { this.pdfService = pdfService; this.registration = registration; this.fileService = fileService; } abstract void generatePdf(OutputStream outputStream, boolean includeDateSigned); byte[] generatePdfForSigning() { return generatePdf(true); } byte[] generatePdf() { return generatePdf(false); } private byte[] generatePdf(boolean includeDateSigned) { ByteArrayOutputStream pdfBytesOutputStream = new ByteArrayOutputStream(); generatePdf(pdfBytesOutputStream, includeDateSigned); return pdfBytesOutputStream.toByteArray(); } byte[] flattenPdf(byte[] inPdfBytes) { ByteArrayOutputStream pdfBytesOutputStream = new ByteArrayOutputStream(); flattenPdf(inPdfBytes, pdfBytesOutputStream); return pdfBytesOutputStream.toByteArray(); } void flattenPdf(byte[] inPdfBytes, OutputStream outputStream) { ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(inPdfBytes); try { pdfService.flattenPdf(byteArrayInputStream, outputStream); } catch (IOException e) { throw new IllegalStateException("Unexpected exception flattening PDF", e); } finally { IOUtils.closeQuietly(byteArrayInputStream); } } void attachFiles(byte[] pdfBytesBeforeAttachment, OutputStream outputStream) throws IOException { byte[] pdfBytes = pdfBytesBeforeAttachment; for (FirebirdFile firebirdFile : getAttachments()) { pdfBytes = attachSupportingFile(pdfBytes, firebirdFile); } IOUtils.write(pdfBytes, outputStream); } private byte[] attachSupportingFile(byte[] pdfBytesBeforeAttachment, FirebirdFile supportingFile) throws IOException { InputStream pdfInputStream = new ByteArrayInputStream(pdfBytesBeforeAttachment); ByteArrayOutputStream pdfBytesOutputStream = new ByteArrayOutputStream(); InputStream attachmentInputStream = null; try { attachmentInputStream = fileService.readFile(supportingFile); pdfService.attachFileToPdf(pdfInputStream, pdfBytesOutputStream, attachmentInputStream, supportingFile.getName()); return pdfBytesOutputStream.toByteArray(); } finally { IOUtils.closeQuietly(pdfInputStream); IOUtils.closeQuietly(pdfBytesOutputStream); IOUtils.closeQuietly(attachmentInputStream); } } PdfService getPdfService() { return pdfService; } FileService getFileService() { return fileService; } AbstractRegistration getRegistration() { return registration; } InvestigatorProfile getProfile() { return getRegistration().getProfile(); } Person getInvestigator() { return getProfile().getPerson(); } abstract Logger getLog(); abstract Collection<FirebirdFile> getAttachments(); abstract AbstractRegistrationForm getForm(); }