WSO2 ESB - writing files out of base64 - base64

I have a proxy which accepts XML files with Base64 encoded files in it. For example the XML looks like:
<message>
<content>Hello World</content>
<attachements>
<attachement>*Base64 code here*</attachement>
<attachement>*Base64 code here*</attachement>
<attachement>*Base64 code here*</attachement>
</attachements>
</message>
My Problem:
I like to save the decoded files from the message into a folder of the filesystem of the server running the ESB. But how can I do this? If I encode a simple text like "Hello World" with Base64 I can decode it with an Script Mediator and Javascript, but how can I write a file to the filesystem? Do I have to write my own Mediator or is there another solution I don't know?
Would be nice if you could help me :)
I'm using the WSO2 ESB for my bachelor thesis. So I'm not a professional yet :)
Thank you

You have several options,
If file sizes are small, iterate through <attachments> and for each attachment, decode using the script mediator and write to a file with syntax like,
<property name="transport.vfs.ReplyFileName"
expression="expression-to-compute-file-name"
scope="transport"/>
<property action="set" name="OUT_ONLY" value="true"/>
<send>
<endpoint>
<address uri="vfs:file:///home/user/test/out"/>
</endpoint>
</send>
If the files are large then it's more efficient to write your own class mediator

Send the files to an local filesystem . Use VFS proxy

Related

Spring Integration Zip - .gz files

I'm trying spring-integration-zip - useful stuff - and was wondering if it (somehow) can also uzip .gz files apart from zip ones?
Moreover, I wanted to change workDirectory ("java.io.tmpdir") for unzip transformer - is there a way to change UnZipTransformer class in xml config, I do not see such possibility or maybe I'm missing something (I know I can use Java Config) - as it is in case of int:splitter for example?
Hm. We don't expose work-directory into the XML configuration.
Please, raise a GH issue on the matter.
Meanwhile you can use:
<int:transformer>
<bean id="unZipTransformer" class="org.springframework.integration.zip.transformer.UnZipTransformer">
<property name="workDirectory" value="D:\tmp"/>
</bean>
</int:transformer>
And no we don't support GZIP format for (un)compression.
The project has been built on top of zt-zip library. So, this Spring Integration Zip extension really provides functionality only for ZIP archives.
Feel free to fill out an issue on the matter as well.

Why is makepri.exe creating more than one Resources.pri file?

I'm trying to create a Resources.pri file so that Windows 10 knows which images to use for my start tile on different resolutions. I'm following step 6 of MSDN's documentation linked below:
https://msdn.microsoft.com/en-us/library/windows/apps/dn393983.aspx#Specify_images_for_scaling__localization__and_high_contrast
I have all of my logo images labeled according to their scale. These are their names in my Assets folder:
70x70Logo.scale-80.png
70x70Logo.scale-100.png
70x70Logo.scale-140.png
70x70Logo.scale-180.png
150x150Logo.scale-80.png
150x150Logo.scale-100.png
150x150Logo.scale-140.png
150x150Logo.scale-180.png
When I use makepri.exe manually, it creates three Resources.pri files instead of just one with all of the scaling information I want in it. These are the files generated:
Resources.pri
Resources.scale-140.pri
Resources.scale-180.pri
Resources.pri has information for the 80% and 100% scales, but the other two files contain the information for the 140% and 180% scales. Any idea why the larger scales are being separated out into separate files? I've included below my TestAppConfig.xml file and the commands I'm using the generate the files.
TestAppConfig.xml
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<resources targetOsVersion="10.0.0" majorVersion="1">
<packaging>
<autoResourcePackage qualifier="Language"/>
<autoResourcePackage qualifier="Scale"/>
<autoResourcePackage qualifier="DXFeatureLevel"/>
</packaging>
<index root="\" startIndexAt="\">
<default>
<qualifier name="Language" value="en-US"/>
<qualifier name="scale" value="100"/>
</default>
<indexer-config type="folder" foldernameAsQualifier="true" filenameAsQualifier="true" qualifierDelimiter="."/>
<indexer-config type="resw" convertDotsToSlashes="true" initialPath=""/>
<indexer-config type="resjson" initialPath=""/>
<indexer-config type="PRI"/>
</index>
<!--<index startIndexAt="Start Index Here" root="Root Here">-->
<!-- <indexer-config type="resfiles" qualifierDelimiter="."/>-->
<!-- <indexer-config type="priinfo" emitStrings="true" emitPaths="true" emitEmbeddedData="true"/>-->
<!--</index>-->
</resources>
Command to create TestAppConfig.xml
"C:\Program Files (x86)\Windows Kits\10\bin\x86\makepri.exe" createconfig /cf %USERPROFILE%\Documents\TestAppConfig.xml /dq lang-en-US_scale-100_contrast-high /pv 10.0.0
Command to create Resources.pri
"C:\Program Files (x86)\Windows Kits\10\bin\x86\makepri.exe" new /pr %USERPROFILE%\Documents\CreateResources /cf %USERPROFILE%\Documents\TestAppConfig.xml /in TestApp /of %USERPROFILE%\Documents\CreateResources\Resources.pri
Any insight into this is greatly appreciated! Let me know if I can provide and further details.
I ended up finding a solution, though I'm exactly sure why it worked/was required to create just one Resources.pri file. I found that setting the default language of all of the images allowed makepri.exe to add all of the image scales as resouces candidates to one Resources.pri file. For example, I found this file structure worked:
\Assets
\en-US
70x70Logo.scale-80.png
70x70Logo.scale-100.png
70x70Logo.scale-140.png
70x70Logo.scale-180.png
150x150Logo.scale-80.png
150x150Logo.scale-100.png
150x150Logo.scale-140.png
150x150Logo.scale-180.png
I was clued in by this snippet of documentation:
Note We recommend that you mark the default language on string resource files (such as en-US\resources.resw) and the default scale on images (such as logo.scale-100.png), even if these files will not be localized nor multiple resolution images provided
https://msdn.microsoft.com/en-us/library/windows/apps/hh965372.aspx
Go figure.
I hope others find this helpful. If anyone has anymore insight on why makepri.exe works this way, I'd be curious to know more.
I've just encountered this with languages rather than images, but removing this block from the auto-generated makepri config fixed it for me:
<packaging>
<autoResourcePackage qualifier="Language"/>
<autoResourcePackage qualifier="Scale"/>
<autoResourcePackage qualifier="DXFeatureLevel"/>
</packaging>

Reusing stopwords and other files in Solr multicore

I have a multicore setup for solr, the directory structure of which goes like
-multicore
|-core0
|--conf
|---schema.xml
|---solrconfig.xml
|---stopwords
|---synonyms
|-core1
|--conf
|---schema.xml
|---solrconfig.xml
|---stopwords
|---synonyms
Both of these cores essentially use the same stop words and synonyms file. Is there a way, both these files could be located at a common place and both the cores read it from there?
According to the CoreAdmin documentation, you can
specify properties in solr.xml which can be used in the solrconfig.xml and schema.xml files.
So as an example you could create something similar to the following:
<solr persistent="true" sharedLib="lib">
<property name="synonymns" value="<your path here>/synonyms.txt" />
<property name="stopwords" value="<your path here>/stopwords.txt" />
<cores adminPath="/admin/cores">
<core name="core0" instanceDir="core0"/>
<core name="core1" instanceDir="core1" />
</cores>
</solr>
Hopefully this should get you started, you will obviously want/need to modify the solr.xml settings to meet your specific needs. Also there are a few other options for how the properties can be defined and the use of defaults. Please refer to the documentation for more details.
Not sure if there is any elegant way with the latest releases.
You can check using the absolute path of the stopwords file.
We have just created a symbolic link to a common shared files which are updated avoiding duplicates.

How to register a "Linux" file association with autotools

I'm writing an application that uses its own file type. I'd like to integrate the file association with the desktop environment. I know that this can be done with a command, but how should it be integrated with autotools?
Currently, my app can be installed without root to ~/.local for example. It would be nice to keep this feature.
Add a myapp.xml to your project that contains the desired MIME data. It'll look something like:
<?xml version="1.0" encoding="UTF-8"?>
<mime-info xmlns="http://www.freedesktop.org/standards/shared-mime-info">
<mime-type type="image/png">
<comment xml:lang="en">PNG image</comment>
<comment xml:lang="af">png beeld</comment>
...
<magic priority="50">
<match type="string" value="\x89PNG" offset="0"/>
</magic>
<glob pattern="*.png"/>
</mime-type>
</mime-info>
See the tutorial for more details on the format of the XML files.
Now you need to figure out where to install your XML file to. In my projects, I provide a --with-xdgdatadir option to configure, which is left as an exercise to the reader. By default, XDGDATADIR should be ${prefix}/share (i.e. ${datarootdir}). Add the following to your Makefile.am:
xdgdatadir=#XDGDATADIR#
mimedir=$(xdgdatadir)/mime
xmldir=$(mimedir)/packages
xml_DATA = myapp.xml
This will ensure that the MIME data is installed correctly.
Finally, it's necessary to ensure that the MIME database is updated on make install and make uninstall. Add a check for the update-mime-database tool to your configure.ac. Then add the following to your Makefile.am:
install-data-hook:
$(UPDATE_MIME_DATABASE) "$(DESTDIR)$(mimedir)"
uninstall-hook:
$(UPDATE_MIME_DATABASE) "$(DESTDIR)$(mimedir)"
I hope that answers your question.

CruiseControl.NET and Clearcase configuration

I'm having problems simply configuring the server for CruiseControl.NET. I am using the source block that is given by ThoughtWorks to set it up, but I cannot seem to get it to be error-free. I am pretty new to all this and some sort of direction would be fantastic.
Does anyone use this combination?
Do you have a ccnet.config file I can look at?
This is what does not work for me:
<cruisecontrol>
<project name="test">
<sourcecontrol type="clearCase">
<exec>batch file</exec>
<viewPath>path_name</viewPath>
<branch>main</branch>
<autoGetSource>false</autoGetSource>
<useLabel>true</useLabel>
<useBaseline>false</useBaseline>
<projectVobName>vob_name</projectVobName>
<viewName>projecy_name</viewName>
<executable>cleartool.exe</executable>
<timeout>50000</timeout>
</sourcecontrol>
</project>
</cruisecontrol>
Thank you.
I have no direct experience with this kind of setup, but if you are using the <projectVobName> tag, that means:
you are declaring a pvob (project vob used only in UCM to store project, stream, activities and components, all UCM data)
your view (with the root directory referenced in <viewPath>) must be an UCM view.
All the other path elements (like 'executable') should reference an absolute path (and not just "cleartool.exe")

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