8000 Maven generates an auto installable jar with C libraries embedded. by pabloa · Pull Request #78 · bcdev/jpy · GitHub
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@pabloa
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@pabloa pabloa commented Dec 23, 2016

Only tested on Linux.
When jpy is invoked from the JVM, C libraries are extracted to the
temporal directory and jpy library is initialized.
Therefore there is not need to install JPY by compiling jpy sources.
It is enough to use the generated jar file.

Only tested on Linux.
When jpy is invoked from the JVM, C libraries are extracted to the
temporal directory and jpy library is initialized.
Therefore there is not need to install JPY by compiling jpy sources.
It is enough to use the generated jar file.
@forman
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forman commented Mar 8, 2017

@pabloa nice work! Could you meanwhile test on other platforms? (We urgently need Travis/AppVeyor support.)

@pabloa
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8000 pabloa commented Mar 8, 2017

Hello,
Loading c libraries from jar file works on MacOS. I do not have a windows box to test though.If it fails (in any operating system), the old mechanism to load binary files is used. Therefore it should not be intrusive.

Regarding to the jar generation with the compiled C modules embebbed, it should work in the 3 OS because maven is instructed to include .so and .dll files. But again, no windows box to test it.
Pablo

OutputStream output = null;
byte[] buffer = new byte[8 * 1024];
try {
filename = new File(System.getProperty("java.io.tmpdir"), "jpy-" + randomInt);
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There is still a risk that this line overwrites an existing file. A safer alternative would be to delete randomInt and use File.createTempFile("jpy-", ".so") (or ."dll") instead.

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