| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.odftoolkit.odfdom.pkg; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.File; |
| import java.io.FilterInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import java.util.logging.Logger; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipOutputStream; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| import org.odftoolkit.odfdom.doc.OdfDocument; |
| import org.odftoolkit.odfdom.utils.ResourceUtilities; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| import org.xml.sax.ErrorHandler; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.SAXParseException; |
| |
| /** |
| * Tests the error behaviour while loading or saving a document. |
| */ |
| public class LoadSaveErrorTest { |
| |
| private static final String SOURCE = "OdfTextDocument.odt"; |
| |
| /** |
| * The ZIP in this test claims to be an ODT file but then backs this with nothing. |
| * We should be able to cancel the whole operation through a custom ErrorHandler, |
| * throwing exception not only for fatal errors. |
| * |
| * @throws SAXException if an XML-related error occurs |
| * @throws IOException if an I/O error occurs |
| */ |
| @Test |
| public void testInvalidZipAsODF() throws Exception { |
| ByteArrayOutputStream baout = new ByteArrayOutputStream(); |
| ZipOutputStream zout = new ZipOutputStream(baout); |
| ZipEntry entry = new ZipEntry("mimetype"); |
| zout.putNextEntry(entry); |
| zout.write(OdfDocument.OdfMediaType.TEXT.getMediaTypeString().getBytes("US-ASCII")); |
| zout.closeEntry(); |
| zout.close(); |
| |
| byte[] zip = baout.toByteArray(); |
| |
| final AtomicInteger warnings = new AtomicInteger(0); |
| final AtomicInteger errors = new AtomicInteger(0); |
| final AtomicInteger fatals = new AtomicInteger(0); |
| |
| ErrorHandler errorHandler = new ErrorHandler() { |
| |
| public void warning(SAXParseException exception) throws SAXException { |
| warnings.incrementAndGet(); |
| Logger.getLogger(getClass().getName()).warning(exception.getLocalizedMessage()); |
| } |
| |
| public void error(SAXParseException exception) throws SAXException { |
| errors.incrementAndGet(); |
| Logger.getLogger(getClass().getName()).severe(exception.getLocalizedMessage()); |
| //Here's the difference to DefaultErrorHandler: |
| //we also throw normal errors, not just fatal errors. |
| throw exception; |
| } |
| |
| public void fatalError(SAXParseException exception) |
| throws SAXException { |
| fatals.incrementAndGet(); |
| Logger.getLogger(getClass().getName()).severe(exception.getLocalizedMessage()); |
| throw exception; |
| } |
| |
| }; |
| |
| try { |
| OdfPackage odfPackage = OdfPackage.loadPackage( |
| new ByteArrayInputStream(zip), null, errorHandler); |
| odfPackage.close(); |
| Assert.fail("Expected an exception for the incomplete ODF file!"); |
| } catch (SAXException se) { |
| //expected |
| } |
| Assert.assertEquals(0, warnings.get()); |
| Assert.assertEquals(0, fatals.get()); |
| Assert.assertEquals("Expected abortion after the first exception to come through the ErrorHandler", |
| 1, errors.get()); |
| } |
| |
| @Test |
| public void testLoadWithFailingNetwortConnection() throws Exception { |
| String doc = ResourceUtilities.getAbsolutePath(SOURCE); |
| File file = new File(doc); |
| InputStream in = new java.io.FileInputStream(file); |
| try { |
| in = new FailingInputStream(in, 8000); |
| try { |
| OdfPackage.loadPackage(in); |
| Assert.fail("Expected IOException for failing stream!"); |
| } catch (IOException ioe) { |
| Assert.assertTrue(ioe.getMessage().contains("Stream failed!")); |
| } |
| } finally { |
| in.close(); |
| } |
| } |
| |
| /** |
| * Tests what happens if there is an I/O error while saving an ODF file. |
| * @throws Exception if an error occurs |
| */ |
| @Test |
| public void testDiskFullOnSave() throws Exception { |
| OdfPackageDocument odfDocument = OdfPackageDocument |
| .loadDocument(ResourceUtilities.getAbsolutePath(SOURCE)); |
| Assert.assertTrue(odfDocument.getPackage().contains("content.xml")); |
| String baseURI = odfDocument.getPackage().getBaseURI(); |
| // Assert.assertTrue(ResourceUtilities.getURI(SOURCE).toString() |
| // .compareToIgnoreCase(baseURI) == 0); |
| System.out.println("SOURCE URI1:"+ResourceUtilities.getURI(SOURCE).toString()); |
| System.out.println("SOURCE URI2:"+baseURI); |
| |
| Document odfContent = odfDocument.getFileDom("content.xml"); |
| NodeList lst = odfContent.getElementsByTagNameNS( |
| "urn:oasis:names:tc:opendocument:xmlns:text:1.0", "p"); |
| Node node = lst.item(0); |
| String oldText = "Changed!!!"; |
| node.setTextContent(oldText); |
| |
| try { |
| odfDocument.getPackage().save( |
| new DiskFullSimulationOutputStream(400)); |
| Assert.fail("Expected an IOException when disk is full!"); |
| } catch (IOException ioe) { |
| Assert.assertEquals("Disk full!", ioe.getMessage()); |
| } |
| } |
| |
| private static class DiskFullSimulationOutputStream extends OutputStream { |
| |
| private long remainingBytes; |
| |
| public DiskFullSimulationOutputStream(long byteCountUntilDiskFull) { |
| this.remainingBytes = byteCountUntilDiskFull; |
| } |
| |
| @Override |
| public void write(int b) throws IOException { |
| remainingBytes--; |
| if (remainingBytes <= 0) { |
| throw new IOException("Disk full!"); |
| } |
| } |
| |
| } |
| |
| /** InputStream that will stop reading after the amount to failure has reached. |
| By doing so this InputStream emulates a network failure or disc error. */ |
| private static class FailingInputStream extends FilterInputStream { |
| |
| private long remainingBytes; |
| |
| protected FailingInputStream(InputStream in, long bytesUntilFailure) { |
| super(in); |
| this.remainingBytes = bytesUntilFailure; |
| } |
| |
| private void processBytes(int count) throws IOException { |
| remainingBytes -= count; |
| if (remainingBytes <= 0) { |
| throw new IOException("Stream failed!"); |
| } |
| } |
| |
| @Override |
| public int read() throws IOException { |
| processBytes(1); |
| return super.read(); |
| } |
| |
| @Override |
| public int read(byte[] b, int off, int len) throws IOException { |
| int bytesRead = super.read(b, off, len); |
| if (bytesRead > 0) { |
| processBytes(bytesRead); |
| } |
| return bytesRead; |
| } |
| |
| @Override |
| public int read(byte[] b) throws IOException { |
| return read(b, 0, b.length); |
| } |
| |
| |
| |
| } |
| |
| } |