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comparison doc/src/site/markdown/java-settings.md @ 1416:3e2f71bafcfb

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add new codec options to doc.
author robcast
date Thu, 22 Oct 2015 16:42:30 +0200
parents 7a2de95a7b8e
children e6ad329cfac8
comparison
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1415:7247c046d9dc 1416:3e2f71bafcfb
35 availability of the TIFF image format under "Supported image types" on the 35 availability of the TIFF image format under "Supported image types" on the
36 [`/server/dlConfig.jsp`](http://localhost:8080/digilib/server/dlConfig.jsp) 36 [`/server/dlConfig.jsp`](http://localhost:8080/digilib/server/dlConfig.jsp)
37 status page. 37 status page.
38 38
39 Sometimes there are memory issues. Newer versions of Tomcat refuse to load 39 Sometimes there are memory issues. Newer versions of Tomcat refuse to load
40 the libraries and I found that in some cases digilib stopped reading TIFF files 40 the libraries (see JREMemoryLeakPreventionListener) and I found that in some
41 cases digilib stopped reading TIFF files
41 after a period of running. In these cases it helped to install the JAI files in 42 after a period of running. In these cases it helped to install the JAI files in
42 Tomcats `lib/` directory or globally in the local Java JDK 43 Tomcats `lib/` directory or globally in the local Java JDK
43 installation (i.e. in the Java's 'jre/lib/ext/' directory on linux). 44 installation (i.e. in the Java's 'jre/lib/ext/' directory on linux).
44 45
45 # Codec availability and Performance 46 # Codec availability and Performance
58 if these jar files are availabe on the classpath, the codecs may be used by digilib. To add them the jar files could e.g. be placed in the lib directory of tomcat or addded as a dependency to the digilib maven project. 59 if these jar files are availabe on the classpath, the codecs may be used by digilib. To add them the jar files could e.g. be placed in the lib directory of tomcat or addded as a dependency to the digilib maven project.
59 60
60 The actual codec implementation used is logged by digilib in debug mode, e.g. 61 The actual codec implementation used is logged by digilib in debug mode, e.g.
61 62
62 1564059 [http-apr-9092-exec-4] DEBUG digilib.image.DocuImage - ImageIO: this reader: class com.twelvemonkeys.imageio.plugins.jpeg.JPEGImageReader 63 1564059 [http-apr-9092-exec-4] DEBUG digilib.image.DocuImage - ImageIO: this reader: class com.twelvemonkeys.imageio.plugins.jpeg.JPEGImageReader
64
65 (Robert Casties, Oct 2015)
66
67 You can now use the TwelveMonkeys codecs instead of the default JAI-ImageIO by [building digilib](build-maven.html) with the Maven-Parameter `imageio=12m`:
68
69 mvn -Dimageio=12m package
63 70
64 # Codec performance 71 # Codec performance
65 72
66 (Ubbo Veentjer, Oct 2015) 73 (Ubbo Veentjer, Oct 2015)
67 74
85 * common-io-3.1.2.jar 92 * common-io-3.1.2.jar
86 * imageio-core-3.1.2.jar 93 * imageio-core-3.1.2.jar
87 * imageio-metadata-3.1.2.jar 94 * imageio-metadata-3.1.2.jar
88 95
89 96
90 # Codec availability 97 # Available image formats
91 98
92 (Ubbo Veentjer, Oct 2015) 99 (Ubbo Veentjer, Oct 2015)
93 100
94 Digilib logs on startup which image formats are supported, e.g: 101 Digilib logs on startup which image formats are supported, e.g:
95 102