Thu, 31 Aug 2017 15:18:52 +0800
merge
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. Oracle designates this |
aoqi@0 | 8 | * particular file as subject to the "Classpath" exception as provided |
aoqi@0 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
aoqi@0 | 10 | * |
aoqi@0 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 15 | * accompanied this code). |
aoqi@0 | 16 | * |
aoqi@0 | 17 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 20 | * |
aoqi@0 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 22 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 23 | * questions. |
aoqi@0 | 24 | */ |
aoqi@0 | 25 | |
aoqi@0 | 26 | package com.sun.xml.internal.org.jvnet.mimepull; |
aoqi@0 | 27 | |
aoqi@0 | 28 | import java.io.File; |
aoqi@0 | 29 | import java.util.logging.Level; |
aoqi@0 | 30 | import java.util.logging.Logger; |
aoqi@0 | 31 | |
aoqi@0 | 32 | /** |
aoqi@0 | 33 | * Configuration for MIME message parsing and storing. |
aoqi@0 | 34 | * |
aoqi@0 | 35 | * @author Jitendra Kotamraju |
aoqi@0 | 36 | */ |
aoqi@0 | 37 | public class MIMEConfig { |
aoqi@0 | 38 | |
aoqi@0 | 39 | private static final int DEFAULT_CHUNK_SIZE = 8192; |
aoqi@0 | 40 | private static final long DEFAULT_MEMORY_THRESHOLD = 1048576L; |
aoqi@0 | 41 | private static final String DEFAULT_FILE_PREFIX = "MIME"; |
aoqi@0 | 42 | |
aoqi@0 | 43 | private static final Logger LOGGER = Logger.getLogger(MIMEConfig.class.getName()); |
aoqi@0 | 44 | |
aoqi@0 | 45 | // Parses the entire message eagerly |
aoqi@0 | 46 | boolean parseEagerly; |
aoqi@0 | 47 | |
aoqi@0 | 48 | // Approximate Chunk size |
aoqi@0 | 49 | int chunkSize; |
aoqi@0 | 50 | |
aoqi@0 | 51 | // Maximum in-memory data per attachment |
aoqi@0 | 52 | long memoryThreshold; |
aoqi@0 | 53 | |
aoqi@0 | 54 | // temp Dir to store large files |
aoqi@0 | 55 | File tempDir; |
aoqi@0 | 56 | String prefix; |
aoqi@0 | 57 | String suffix; |
aoqi@0 | 58 | |
aoqi@0 | 59 | private MIMEConfig(boolean parseEagerly, int chunkSize, |
aoqi@0 | 60 | long inMemoryThreshold, String dir, String prefix, String suffix) { |
aoqi@0 | 61 | this.parseEagerly = parseEagerly; |
aoqi@0 | 62 | this.chunkSize = chunkSize; |
aoqi@0 | 63 | this.memoryThreshold = inMemoryThreshold; |
aoqi@0 | 64 | this.prefix = prefix; |
aoqi@0 | 65 | this.suffix = suffix; |
aoqi@0 | 66 | setDir(dir); |
aoqi@0 | 67 | } |
aoqi@0 | 68 | |
aoqi@0 | 69 | public MIMEConfig() { |
aoqi@0 | 70 | this(false, DEFAULT_CHUNK_SIZE, DEFAULT_MEMORY_THRESHOLD, null, |
aoqi@0 | 71 | DEFAULT_FILE_PREFIX, null); |
aoqi@0 | 72 | } |
aoqi@0 | 73 | |
aoqi@0 | 74 | boolean isParseEagerly() { |
aoqi@0 | 75 | return parseEagerly; |
aoqi@0 | 76 | } |
aoqi@0 | 77 | |
aoqi@0 | 78 | public void setParseEagerly(boolean parseEagerly) { |
aoqi@0 | 79 | this.parseEagerly = parseEagerly; |
aoqi@0 | 80 | } |
aoqi@0 | 81 | |
aoqi@0 | 82 | int getChunkSize() { |
aoqi@0 | 83 | return chunkSize; |
aoqi@0 | 84 | } |
aoqi@0 | 85 | |
aoqi@0 | 86 | void setChunkSize(int chunkSize) { |
aoqi@0 | 87 | this.chunkSize = chunkSize; |
aoqi@0 | 88 | } |
aoqi@0 | 89 | |
aoqi@0 | 90 | long getMemoryThreshold() { |
aoqi@0 | 91 | return memoryThreshold; |
aoqi@0 | 92 | } |
aoqi@0 | 93 | |
aoqi@0 | 94 | /** |
aoqi@0 | 95 | * If the attachment is greater than the threshold, it is |
aoqi@0 | 96 | * written to the disk. |
aoqi@0 | 97 | * |
aoqi@0 | 98 | * @param memoryThreshold no of bytes per attachment |
aoqi@0 | 99 | * if -1, then the whole attachment is kept in memory |
aoqi@0 | 100 | */ |
aoqi@0 | 101 | public void setMemoryThreshold(long memoryThreshold) { |
aoqi@0 | 102 | this.memoryThreshold = memoryThreshold; |
aoqi@0 | 103 | } |
aoqi@0 | 104 | |
aoqi@0 | 105 | boolean isOnlyMemory() { |
aoqi@0 | 106 | return memoryThreshold == -1L; |
aoqi@0 | 107 | } |
aoqi@0 | 108 | |
aoqi@0 | 109 | File getTempDir() { |
aoqi@0 | 110 | return tempDir; |
aoqi@0 | 111 | } |
aoqi@0 | 112 | |
aoqi@0 | 113 | String getTempFilePrefix() { |
aoqi@0 | 114 | return prefix; |
aoqi@0 | 115 | } |
aoqi@0 | 116 | |
aoqi@0 | 117 | String getTempFileSuffix() { |
aoqi@0 | 118 | return suffix; |
aoqi@0 | 119 | } |
aoqi@0 | 120 | |
aoqi@0 | 121 | /** |
aoqi@0 | 122 | * @param dir |
aoqi@0 | 123 | */ |
aoqi@0 | 124 | public final void setDir(String dir) { |
aoqi@0 | 125 | if (tempDir == null && dir != null && !dir.equals("")) { |
aoqi@0 | 126 | tempDir = new File(dir); |
aoqi@0 | 127 | } |
aoqi@0 | 128 | } |
aoqi@0 | 129 | |
aoqi@0 | 130 | /** |
aoqi@0 | 131 | * Validates if it can create temporary files. Otherwise, it stores |
aoqi@0 | 132 | * attachment contents in memory. |
aoqi@0 | 133 | */ |
aoqi@0 | 134 | public void validate() { |
aoqi@0 | 135 | if (!isOnlyMemory()) { |
aoqi@0 | 136 | try { |
aoqi@0 | 137 | File tempFile = (tempDir == null) |
aoqi@0 | 138 | ? File.createTempFile(prefix, suffix) |
aoqi@0 | 139 | : File.createTempFile(prefix, suffix, tempDir); |
aoqi@0 | 140 | boolean deleted = tempFile.delete(); |
aoqi@0 | 141 | if (!deleted) { |
aoqi@0 | 142 | if (LOGGER.isLoggable(Level.INFO)) { |
aoqi@0 | 143 | LOGGER.log(Level.INFO, "File {0} was not deleted", tempFile.getAbsolutePath()); |
aoqi@0 | 144 | } |
aoqi@0 | 145 | } |
aoqi@0 | 146 | } catch(Exception ioe) { |
aoqi@0 | 147 | memoryThreshold = -1L; // whole attachment will be in-memory |
aoqi@0 | 148 | } |
aoqi@0 | 149 | } |
aoqi@0 | 150 | } |
aoqi@0 | 151 | |
aoqi@0 | 152 | } |