private void checkSize(ConfigWeb config, Resource dir, long maxSize, ResourceFilter filter) {
if (!dir.exists()) return;
Resource res = null;
int count = ArrayUtil.size(filter == null ? dir.list() : dir.list(filter));
long size = ResourceUtil.getRealSize(dir, filter);
PrintWriter out = config.getOutWriter();
SystemOut.printDate(out, "check size of directory [" + dir + "]");
SystemOut.printDate(out, "- current size [" + size + "]");
SystemOut.printDate(out, "- max size [" + maxSize + "]");
int len = -1;
while (count > 100000 || size > maxSize) {
Resource[] files = filter == null ? dir.listResources() : dir.listResources(filter);
if (len == files.length) break; // protect from inifinti loop
len = files.length;
for (int i = 0; i < files.length; i++) {
if (res == null || res.lastModified() > files[i].lastModified()) {
res = files[i];
}
}
if (res != null) {
size -= res.length();
try {
res.remove(true);
count--;
} catch (IOException e) {
SystemOut.printDate(out, "cannot remove resource " + res.getAbsolutePath());
break;
}
}
res = null;
}
}
/**
* This private worker method attempts to find [java_home]/lib/tools.jar. Note: The tools.jar is a
* part of the SDK, it is not present in the JRE.
*
* @return If tools.jar can be found, a File representing tools.jar. <br>
* If tools.jar cannot be found, null.
*/
private static Resource findToolsJar(Config config, Log log, RefBoolean useOurOwn) {
log.info("Instrumentation", "looking for tools.jar");
String javaHome = System.getProperty("java.home");
Resource javaHomeFile = ResourcesImpl.getFileResourceProvider().getResource(javaHome);
Resource toolsJarFile = javaHomeFile.getRealResource("lib" + File.separator + "tools.jar");
if (toolsJarFile.exists()) {
useOurOwn.setValue(false);
return toolsJarFile;
}
log.info("Instrumentation", "couldn't find tools.jar at: " + toolsJarFile.getAbsolutePath());
// If we're on an IBM SDK, then remove /jre off of java.home and try again.
if (javaHomeFile.getAbsolutePath().endsWith(SEP + "jre")) {
javaHomeFile = javaHomeFile.getParentResource();
toolsJarFile = javaHomeFile.getRealResource("lib" + SEP + "tools.jar");
if (!toolsJarFile.exists()) {
log.info("Instrumentation", "for IBM SDK couldn't find " + toolsJarFile.getAbsolutePath());
} else {
useOurOwn.setValue(false);
return toolsJarFile;
}
} else if (System.getProperty("os.name").toLowerCase().indexOf("mac") >= 0) {
// If we're on a Mac, then change the search path to use ../Classes/classes.jar.
if (javaHomeFile.getAbsolutePath().endsWith(SEP + "Home")) {
javaHomeFile = javaHomeFile.getParentResource();
toolsJarFile = javaHomeFile.getRealResource("Classes" + SEP + "classes.jar");
if (!toolsJarFile.exists()) {
log.info("Instrumentation", "for Mac OS couldn't find " + toolsJarFile.getAbsolutePath());
} else {
useOurOwn.setValue(false);
return toolsJarFile;
}
}
}
// if the engine could not find the tools.jar it is using it's own version
try {
toolsJarFile = createToolsJar(config);
} catch (IOException e) {
log.error("Instrumentation", e);
}
if (!toolsJarFile.exists()) {
log.info("Instrumentation", "could not be created " + toolsJarFile.getAbsolutePath());
return null;
}
log.info("Instrumentation", "found " + toolsJarFile.getAbsolutePath());
return toolsJarFile;
}
