| /******************************************************************************* |
| * Copyright (c) 2004, 2013 Tasktop Technologies and others. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * https://www.eclipse.org/legal/epl-2.0 |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Tasktop Technologies - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.internal.bugzilla.core; |
| |
| import java.io.BufferedInputStream; |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.Reader; |
| import java.io.StringReader; |
| import java.security.GeneralSecurityException; |
| |
| import org.eclipse.mylyn.commons.core.CoreUtil; |
| import org.xml.sax.EntityResolver; |
| import org.xml.sax.ErrorHandler; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.SAXParseException; |
| import org.xml.sax.XMLReader; |
| import org.xml.sax.helpers.DefaultHandler; |
| |
| /** |
| * @author Rob Elves |
| */ |
| public class AbstractReportFactory { |
| |
| public static final int RETURN_ALL_HITS = -1; |
| |
| private final InputStream inStream; |
| |
| private final String characterEncoding; |
| |
| public AbstractReportFactory(InputStream inStream, String encoding) { |
| this.inStream = inStream; |
| this.characterEncoding = encoding; |
| } |
| |
| /** |
| * expects rdf returned from repository (ctype=rdf in url) |
| * |
| * @throws GeneralSecurityException |
| */ |
| protected void collectResults(DefaultHandler contentHandler, boolean clean) throws IOException { |
| File tempFile = null; |
| |
| if (inStream == null) { |
| return; |
| } |
| |
| final BufferedInputStream is = new BufferedInputStream(inStream, 1024); |
| |
| InputStream iis = new InputStream() { |
| @SuppressWarnings({ "restriction" }) |
| @Override |
| public int read() throws IOException { |
| int c; |
| while ((c = is.read()) != -1) { |
| if (org.eclipse.mylyn.internal.commons.core.XmlStringConverter.isValid((char) c)) { |
| return c; |
| } |
| } |
| return -1; |
| } |
| }; |
| |
| Reader in; |
| if (characterEncoding != null) { |
| in = new InputStreamReader(iis, characterEncoding); |
| } else { |
| in = new InputStreamReader(iis); |
| } |
| |
| if (clean) { |
| tempFile = File.createTempFile("XmlCleaner-", "tmp"); //$NON-NLS-1$//$NON-NLS-2$ |
| tempFile.deleteOnExit(); |
| in = XmlCleaner.clean(in, tempFile); |
| } |
| |
| try { |
| final XMLReader reader = CoreUtil.newXmlReader(); |
| reader.setFeature("http://xml.org/sax/features/validation", false); //$NON-NLS-1$ |
| reader.setContentHandler(contentHandler); |
| |
| EntityResolver resolver = new EntityResolver() { |
| |
| public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException { |
| // The default resolver will try to resolve the dtd via |
| // URLConnection. Since we |
| // don't have need of entity resolving |
| // currently, we just supply a dummy (empty) resource for |
| // each request... |
| InputSource source = new InputSource(); |
| source.setCharacterStream(new StringReader("")); //$NON-NLS-1$ |
| return source; |
| } |
| }; |
| |
| reader.setEntityResolver(resolver); |
| reader.setErrorHandler(new ErrorHandler() { |
| |
| public void error(SAXParseException exception) throws SAXException { |
| throw exception; |
| } |
| |
| public void fatalError(SAXParseException exception) throws SAXException { |
| throw exception; |
| } |
| |
| public void warning(SAXParseException exception) throws SAXException { |
| throw exception; |
| } |
| }); |
| reader.parse(new InputSource(in)); |
| } catch (SAXException e) { |
| throw new IOException(e.getMessage()); |
| } |
| |
| finally { |
| if (tempFile != null) { |
| tempFile.delete(); |
| } |
| } |
| } |
| } |