| /* |
| * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.xml.internal.org.jvnet.mimepull; |
| |
| import java.nio.ByteBuffer; |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| /** |
| * Keeps the Part's partial content data in memory. |
| * |
| * @author Kohsuke Kawaguchi |
| * @author Jitendra Kotamraju |
| */ |
| final class MemoryData implements Data { |
| private static final Logger LOGGER = Logger.getLogger(MemoryData.class.getName()); |
| |
| private final byte[] data; |
| private final int len; |
| private final MIMEConfig config; |
| |
| MemoryData(ByteBuffer buf, MIMEConfig config) { |
| data = buf.array(); |
| len = buf.limit(); |
| this.config = config; |
| } |
| |
| // size of the chunk given by the parser |
| @Override |
| public int size() { |
| return len; |
| } |
| |
| @Override |
| public byte[] read() { |
| return data; |
| } |
| |
| @Override |
| public long writeTo(DataFile file) { |
| return file.writeTo(data, 0, len); |
| } |
| |
| /** |
| * |
| * @param dataHead |
| * @param buf |
| * @return |
| */ |
| @Override |
| public Data createNext(DataHead dataHead, ByteBuffer buf) { |
| if (!config.isOnlyMemory() && dataHead.inMemory >= config.memoryThreshold) { |
| try { |
| String prefix = config.getTempFilePrefix(); |
| String suffix = config.getTempFileSuffix(); |
| File tempFile = TempFiles.createTempFile(prefix, suffix, config.getTempDir()); |
| // delete the temp file when VM exits as a last resort for file clean up |
| tempFile.deleteOnExit(); |
| if (LOGGER.isLoggable(Level.FINE)) { |
| LOGGER.log(Level.FINE, "Created temp file = {0}", tempFile); |
| } |
| // delete the temp file when VM exits as a last resort for file clean up |
| tempFile.deleteOnExit(); |
| if (LOGGER.isLoggable(Level.FINE)) {LOGGER.log(Level.FINE, "Created temp file = {0}", tempFile);} |
| dataHead.dataFile = new DataFile(tempFile); |
| } catch (IOException ioe) { |
| throw new MIMEParsingException(ioe); |
| } |
| |
| if (dataHead.head != null) { |
| for (Chunk c = dataHead.head; c != null; c = c.next) { |
| long pointer = c.data.writeTo(dataHead.dataFile); |
| c.data = new FileData(dataHead.dataFile, pointer, len); |
| } |
| } |
| return new FileData(dataHead.dataFile, buf); |
| } else { |
| return new MemoryData(buf, config); |
| } |
| } |
| |
| } |