Magnolia Module Cache 5.5.9
File AbstractThresholdingCacheOutputStream.java
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Classes
| Class | Line # | Actions | |||||
|---|---|---|---|---|---|---|---|
| AbstractThresholdingCacheOutputStream | 49 | 25 | 12.8% | 13 | 3 |
Contributing tests
This file is covered by 14 tests.
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| 1 | /** | |
| 2 | * This file Copyright (c) 2013-2018 Magnolia International | |
| 3 | * Ltd. (http://www.magnolia-cms.com). All rights reserved. | |
| 4 | * | |
| 5 | * | |
| 6 | * This file is dual-licensed under both the Magnolia | |
| 7 | * Network Agreement and the GNU General Public License. | |
| 8 | * You may elect to use one or the other of these licenses. | |
| 9 | * | |
| 10 | * This file is distributed in the hope that it will be | |
| 11 | * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the | |
| 12 | * implied warranty of MERCHANTABILITY or FITNESS FOR A | |
| 13 | * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT. | |
| 14 | * Redistribution, except as permitted by whichever of the GPL | |
| 15 | * or MNA you select, is prohibited. | |
| 16 | * | |
| 17 | * 1. For the GPL license (GPL), you can redistribute and/or | |
| 18 | * modify this file under the terms of the GNU General | |
| 19 | * Public License, Version 3, as published by the Free Software | |
| 20 | * Foundation. You should have received a copy of the GNU | |
| 21 | * General Public License, Version 3 along with this program; | |
| 22 | * if not, write to the Free Software Foundation, Inc., 51 | |
| 23 | * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 24 | * | |
| 25 | * 2. For the Magnolia Network Agreement (MNA), this file | |
| 26 | * and the accompanying materials are made available under the | |
| 27 | * terms of the MNA which accompanies this distribution, and | |
| 28 | * is available at http://www.magnolia-cms.com/mna.html | |
| 29 | * | |
| 30 | * Any modifications to this file must keep this entire header | |
| 31 | * intact. | |
| 32 | * | |
| 33 | */ | |
| 34 | package info.magnolia.module.cache.filter; | |
| 35 | ||
| 36 | import info.magnolia.context.MgnlContext; | |
| 37 | ||
| 38 | import java.io.ByteArrayOutputStream; | |
| 39 | import java.io.IOException; | |
| 40 | import java.io.OutputStream; | |
| 41 | ||
| 42 | import javax.servlet.http.HttpServletRequest; | |
| 43 | ||
| 44 | import org.apache.commons.io.output.ThresholdingOutputStream; | |
| 45 | ||
| 46 | /** | |
| 47 | * Output stream that will trigger an event when threshold reached. | |
| 48 | */ | |
| 49 | abstract class AbstractThresholdingCacheOutputStream extends ThresholdingOutputStream { | |
| 50 | ||
| 51 | private final HttpServletRequest request; | |
| 52 | protected OutputStream out; | |
| 53 | ||
| 54 | private boolean thresholdExceeded; | |
| 55 | private int written; | |
| 56 | ||
| 57 | 21 |  public AbstractThresholdingCacheOutputStream(int threshold) { |
| 58 | 21 | super(threshold); |
| 59 | 21 | this.out = new ByteArrayOutputStream(); |
| 60 | 21 | if (MgnlContext.isWebContext()) { |
| 61 | 13 | request = MgnlContext.getWebContext().getRequest(); |
| 62 | } else { | |
| 63 | 8 | request = null; |
| 64 | } | |
| 65 | } | |
| 66 | ||
| 67 | 1016225 | @Override |
| 68 | protected OutputStream getStream() throws IOException { | |
| 69 | 1016225 | return getInMemoryBuffer(); |
| 70 | } | |
| 71 | ||
| 72 | @Override | |
| 73 | protected abstract void thresholdReached() throws IOException; | |
| 74 | ||
| 75 | public OutputStream getInMemoryBuffer() { |
|
| 76 | return out; | |
| 77 | } | |
| 78 | ||
| 79 | 1016231 | @Override |
| 80 | public void write(int b) throws IOException { | |
| 81 | 1016231 | checkThreshold(1); |
| 82 | 1016231 | getStream().write(b); |
| 83 | 1016231 | written++; |
| 84 | } | |
| 85 | ||
| 86 | 4 | @Override |
| 87 | public void write(byte b[]) throws IOException { | |
| 88 | 4 | checkThreshold(b.length); |
| 89 | 4 | getStream().write(b); |
| 90 | 4 | written += b.length; |
| 91 | } | |
| 92 | ||
| 93 | 257 | @Override |
| 94 | public void write(byte b[], int off, int len) throws IOException { | |
| 95 | 257 | checkThreshold(len); |
| 96 | 257 | getStream().write(b, off, len); |
| 97 | 257 | written += len; |
| 98 | } | |
| 99 | ||
| 100 | @Override |
|
| 101 | public long getByteCount() { | |
| 102 | return written; | |
| 103 | } | |
| 104 | ||
| 105 | @Override |
|
| 106 | public boolean isThresholdExceeded() { | |
| 107 | return written > this.getThreshold(); | |
| 108 | } | |
| 109 | ||
| 110 | 1016492 | @Override |
| 111 | protected void checkThreshold(int count) throws IOException { | |
| 112 | 1016492 | if (!thresholdExceeded && written + count > this.getThreshold()) { |
| 113 | 5 | thresholdExceeded = true; |
| 114 | 5 | thresholdReached(); |
| 115 | } | |
| 116 | } | |
| 117 | ||
| 118 | 512166 | @Override |
| 119 | public int getThreshold() { | |
| 120 | 512166 | if (request != null) { |
| 121 | 12 | Integer threshold = (Integer) request.getAttribute(CacheResponseWrapper.ATTRIBUTE_IN_MEMORY_THRESHOLD); |
| 122 | 12 | if (threshold != null) { |
| 123 | 8 | return threshold; |
| 124 | } | |
| 125 | } | |
| 126 | 512158 | return super.getThreshold(); |
| 127 | } | |
| 128 | ||
| 129 | 0 | @Override |
| 130 | protected void resetByteCount() { | |
| 131 | 0 | this.thresholdExceeded = false; |
| 132 | 0 | this.written = 0; |
| 133 | } | |
| 134 | ||
| 135 | } |