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* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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/*
* @ test
* @ summary Test a pool containing external files .
* @ author Andrei Eremeev
* @ modules jdk . jlink / jdk . tools . jlink . internal
* jdk . jlink / jdk . tools . jlink . plugin
* @ run build ImageFilePoolTest
* @ run main ImageFilePoolTest
*/
import java.io.ByteArrayInputStream;
import java.util.Optional;
import java.util.function .Function ;
import jdk.tools.jlink.internal.ResourcePoolEntryFactory;
import jdk.tools.jlink.internal.ResourcePoolManager;
import jdk.tools.jlink.plugin.ResourcePoolEntry;
import jdk.tools.jlink.plugin.ResourcePool;
public class ImageFilePoolTest {
public static void main(String[] args) throws Exception {
new ImageFilePoolTest().test();
}
public void test() throws Exception {
checkNegative();
checkVisitor();
}
private static final String SUFFIX = "END" ;
private void checkVisitor() throws Exception {
ResourcePoolManager input = new ResourcePoolManager();
for (int i = 0 ; i < 1000 ; ++i) {
String module = "module" + (i / 100 );
input.add(newInMemoryImageFile("/" + module + "/java/class" + i,
ResourcePoolEntry.Type.CONFIG, "class" + i));
}
if (input.entryCount() != 1000 ) {
throw new AssertionError();
}
ResourcePoolManager output = new ResourcePoolManager();
ResourceVisitor visitor = new ResourceVisitor();
input.resourcePool().transformAndCopy(visitor, output.resourcePoolBuilder());
if (visitor.getAmountBefore() == 0 ) {
throw new AssertionError("Resources not found" );
}
if (visitor.getAmountBefore() != input.entryCount()) {
throw new AssertionError("Number of visited resources. Expected: " +
visitor.getAmountBefore() + ", got: " + input.entryCount());
}
if (visitor.getAmountAfter() != output.entryCount()) {
throw new AssertionError("Number of added resources. Expected: " +
visitor.getAmountAfter() + ", got: " + output.entryCount());
}
output.entries().forEach(outFile -> {
String path = outFile.path().replaceAll(SUFFIX + "$" , "" );
Optional<ResourcePoolEntry> inFile = input.findEntry(path);
if (!inFile.isPresent()) {
throw new AssertionError("Unknown resource: " + path);
}
});
}
private static class ResourceVisitor implements Function <ResourcePoolEntry, ResourcePoolEntry> {
private int amountBefore;
private int amountAfter;
@Override
public ResourcePoolEntry apply(ResourcePoolEntry file) {
int index = ++amountBefore % 3 ;
switch (index) {
case 0 :
++amountAfter;
return newInMemoryImageFile(file.path() + SUFFIX,
file.type(), file.path());
case 1 :
++amountAfter;
return newInMemoryImageFile(file.path(),
file.type(), file.path());
}
return null ;
}
public int getAmountAfter() {
return amountAfter;
}
public int getAmountBefore() {
return amountBefore;
}
}
private void checkNegative() throws Exception {
ResourcePoolManager input = new ResourcePoolManager();
try {
input.add(null );
throw new AssertionError("NullPointerException is not thrown" );
} catch (NullPointerException e) {
// expected
}
try {
input.contains(null );
throw new AssertionError("NullPointerException is not thrown" );
} catch (NullPointerException e) {
// expected
}
if (input.findEntry("unknown" ).isPresent()) {
throw new AssertionError("ImageFileResourcePool does not return null for unknown file" );
}
if (input.contains(newInMemoryImageFile("/unknown/foo" , ResourcePoolEntry.Type.CONFIG, "unknown" ))) {
throw new AssertionError("'contain' returns true for /unknown/foo file" );
}
input.add(newInMemoryImageFile("/aaa/bbb" , ResourcePoolEntry.Type.CONFIG, "" ));
try {
input.add(newInMemoryImageFile("/aaa/bbb" , ResourcePoolEntry.Type.CONFIG, "" ));
throw new AssertionError("Exception expected" );
} catch (Exception e) {
// expected
}
}
private static ResourcePoolEntry newInMemoryImageFile(String path,
ResourcePoolEntry.Type type, String content) {
return ResourcePoolEntryFactory.create(path, type, content.getBytes());
}
}
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