Hi all,
I've coded up a new condition to take advantage of (one of) the new
features of the the java.io.File api
Currently this works and I have an antunit test and everything!
public class HasFreeSpace implements Condition {
private String partition;
private String needed;
public boolean eval() throws BuildException {
try {
if (JavaEnvUtils.isAtLeastJavaVersion("1.6")) {
long free = Java6FileUtils.freeSpace(partition);
return free >=
StringUtils.parseHumanSizes(needed);
} else {
throw new BuildException("HasFreeSpace
condition not supported on
Java5 or less.");
}
} catch (Exception e) {
throw new BuildException(e);
}
}
<<<<
<?xml version="1.0"?>
<project name="hasfreespace-test" default="all" basedir="."
xmlns:au="antlib:org.apache.ant.antunit">
<target name="test-not-enough-space-human">
<au:assertFalse>
<hasfreespace partition="c:" needed="1P"/>
</au:assertFalse>
</target>
<target name="test-enough-space-human">
<au:assertTrue>
<hasfreespace partition="c:" needed="1K"/>
</au:assertTrue>
</target>
<target name="test-not-enough-space">
<property name="long.max-value" value="9223372036854775807"/>
<au:assertFalse>
<hasfreespace partition="c:" needed="${long.max-value}"/>
</au:assertFalse>
</target>
<target name="test-enough-space">
<au:assertTrue>
<hasfreespace partition="c:" needed="1"/>
</au:assertTrue>
</target>
<target name="all">
<au:antunit>
<fileset file="${ant.file}"/>
<au:plainlistener/>
</au:antunit>
</target>
</project>
<<<<
Now the problem is that I currently use a Java6FileUtils to allow me
to keep the special Java6 methods out of the base FileUtils, but none
of this code will compile on <jdk6 (well ok the StringUtils code is
fine). I'd like to separate out the java6 specific stuff in a way
that allows me to bootstrap/build correctly on jdk5, but right now it
fails as the bootstrap script expects everything in the conditions
package to be bwc with jdk1.2.
I want to check in the StringUtils changes as they will build fine on
pre-jdk6, but they'd be unused unless I checked in my new condition.
So any helpful suggestions as to how to structure everything to work
in a bwc way and ignore my new condition when on jdk5 & lower?
(I've added a o.a.t.a.u.java6 package which my Java6FileUtils resides
in, so I can conditionally compile that, it's just that the
HasFreeSpace condition is in with the rest of the conditions and this
is failing on Java5)
Thanks,
Kev
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