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| Keywords in Java. |
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| Cogito-Ergo-Sum |
 Posted: Tue Nov 22, 2011 11:04 am Post subject: Keywords in Java. |
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Master
Joined: 07 Feb 2006
Posts: 293
Location: Bengaluru, India
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The keywords for Java need to be stored in a separate file named META-INF/keywords.txt. While building the BAR file (from GUI or command line) we just select the Java project and the generated BAR has the JAR embedded in in it. So, how do I insert the META-INF/keywords.txt file ?
So far, the only way that I could think is to manually extract the JAR from BAR, unzip the JAR, add the META-INF/keywords.txt file, JAR it again then add back to BAR. All this can be command using a few commands. But, is this actually the recommended way ?
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Debugging tip:When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth.
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| lancelotlinc |
| Posted: Tue Nov 22, 2011 11:39 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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IMHO, deploying third-party or custom jars to an EG is redundant if you reuse the jar in multiple msg flow projects. Therefore, I put my third-party and custom jars in $MQSI_WORKPATH/shared-classes. Alternately, you can define a location for the EG anywhere on your file system use mqsichangeproperties.
From there, you build your jar just like any other jar. If its easier for you, use the Java perspective of Eclipse rather than the WMB perspective.
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| mqjeff |
| Posted: Tue Nov 22, 2011 11:45 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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putting jar files willy-nilly into SHARED-CLASSES is not always the right choice.
It's always a better choice than adding them to CLASSPATH, however.
There should nominally be a reasonable way to create a keywords.txt file in the Java project and have it added to the JAR file at build time. I just tried manually creating a META-INF folder and adding a keywords.txt file to that, but it didn't end up appearing to work.
However, I may have done quite a number of little things wrong. I would suggest you try creating a keywords.txt file at the root of the JCN project. And then try creating a META-INF folder at the root of the JCN project, and try that. And then do a few more experiments. |
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| Cogito-Ergo-Sum |
| Posted: Tue Nov 22, 2011 5:23 pm Post subject: |
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Master
Joined: 07 Feb 2006
Posts: 293
Location: Bengaluru, India
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| lancelotlinc wrote: |
IMHO, deploying third-party or custom jars to an EG is redundant if you reuse the jar in multiple msg flow projects. Therefore, I put my third-party and custom jars in $MQSI_WORKPATH/shared-classes. Alternately, you can define a location for the EG anywhere on your file system use mqsichangeproperties.
From there, you build your jar just like any other jar. If its easier for you, use the Java perspective of Eclipse rather than the WMB perspective. |
This does not answer how one can easily add the META-INF/keywords.txt file.
| mqjeff wrote: |
There should nominally be a reasonable way to create a keywords.txt file in the Java project and have it added to the JAR file at build time. I just tried manually creating a META-INF folder and adding a keywords.txt file to that, but it didn't end up appearing to work.
However, I may have done quite a number of little things wrong. I would suggest you try creating a keywords.txt file at the root of the JCN project. And then try creating a META-INF folder at the root of the JCN project, and try that. And then do a few more experiments. |
I have done my experiments from a different 'end'. That is, once the JAR was created, unzip it, manually add the file and then, zip (jar) it back. This did seem to work.
Actually, from the specification for META-INF, adding the keywords' file sounds non-standard. Then again, if I recall correctly, the JAR built from Java project in WMB does not carry the default manifest either. Instead, setting package version could have been a better choice.
_________________
ALL opinions are welcome.
-----------------------------
Debugging tip:When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth.
---Sherlock Holmes |
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| mqjeff |
| Posted: Wed Nov 23, 2011 3:40 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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| Cogito-Ergo-Sum wrote: |
| mqjeff wrote: |
There should nominally be a reasonable way to create a keywords.txt file in the Java project and have it added to the JAR file at build time. I just tried manually creating a META-INF folder and adding a keywords.txt file to that, but it didn't end up appearing to work.
However, I may have done quite a number of little things wrong. I would suggest you try creating a keywords.txt file at the root of the JCN project. And then try creating a META-INF folder at the root of the JCN project, and try that. And then do a few more experiments. |
I have done my experiments from a different 'end'. That is, once the JAR was created, unzip it, manually add the file and then, zip (jar) it back. This did seem to work. |
Yes, that will of course work, but it's not probably the right way. The right way is to figure out how to get the Toolkit to build it automatically as part of compiling the jar. |
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| lancelotlinc |
| Posted: Wed Nov 23, 2011 5:36 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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| Cogito-Ergo-Sum wrote: |
| lancelotlinc wrote: |
IMHO, deploying third-party or custom jars to an EG is redundant if you reuse the jar in multiple msg flow projects. Therefore, I put my third-party and custom jars in $MQSI_WORKPATH/shared-classes. Alternately, you can define a location for the EG anywhere on your file system use mqsichangeproperties.
From there, you build your jar just like any other jar. If its easier for you, use the Java perspective of Eclipse rather than the WMB perspective. |
This does not answer how one can easily add the META-INF/keywords.txt file. |
It did answer, in that you would develop your jar like any other jar. If you were not using WMB, how would you do it?
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