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package org.glassfish.jersey.server.internal.scanning;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URL;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import javax.ws.rs.core.UriBuilder;
import org.glassfish.jersey.server.ResourceFinder;
/**
* A JBoss-based "vfsfile", "vfs" and "vfszip" scheme URI scanner.
*
* @author Paul Sandoz
*/
class VfsSchemeResourceFinderFactory implements UriSchemeResourceFinderFactory {
public Set<String> getSchemes() {
return new HashSet<String>(Arrays.asList("vfsfile", "vfszip", "vfs"));
}
VfsSchemeResourceFinderFactory() {
}
@Override
public VfsSchemeScanner create(final URI uri, boolean recursive) {
ResourceFinderStack resourceFinderStack = new ResourceFinderStack();
if (!uri.getScheme().equalsIgnoreCase("vfszip")) {
resourceFinderStack.push(
new FileSchemeResourceFinderFactory().create(UriBuilder.fromUri(uri).scheme("file").build(), true));
} else {
final String su = uri.toString();
final int webInfIndex = su.indexOf("/WEB-INF/classes");
if (webInfIndex != -1) {
final String war = su.substring(0, webInfIndex);
final String path = su.substring(webInfIndex + 1);
final int warParentIndex = war.lastIndexOf('/');
final String warParent = su.substring(0, warParentIndex);
// Check is there is a war within an ear
// If so we need to load the ear then obtain the InputStream
// of the entry to the war
if (warParent.endsWith(".ear")) {
final String warName = su.substring(warParentIndex + 1, war.length());
try {
final JarFileScanner jarFileScanner =
new JarFileScanner(new URL(warParent.replace("vfszip", "file")).openStream(), "", true);
while (jarFileScanner.hasNext()) {
if (jarFileScanner.next().equals(warName)) {
resourceFinderStack.push(new JarFileScanner(new FilterInputStream(jarFileScanner.open()) {
// This is required so that the underlying ear
// is not closed
@Override
public void close() throws IOException {
}
}, "", true));
}
}
} catch (IOException e) {
throw new ResourceFinderException("IO error when scanning war " + uri, e);
}
} else {
try {
resourceFinderStack.push(
new JarFileScanner(new URL(war.replace("vfszip", "file")).openStream(), path, recursive));
} catch (IOException e) {
throw new ResourceFinderException("IO error when scanning war " + uri, e);
}
}
} else {
try {
resourceFinderStack.push(new JarFileScanner(new URL(su).openStream(), "", true));
} catch (IOException e) {
throw new ResourceFinderException("IO error when scanning jar " + uri, e);
}
}
}
return new VfsSchemeScanner(resourceFinderStack);
}
private class VfsSchemeScanner implements ResourceFinder {
private final ResourceFinderStack resourceFinderStack;
private VfsSchemeScanner(final ResourceFinderStack resourceFinderStack) {
this.resourceFinderStack = resourceFinderStack;
}
@Override
public boolean hasNext() {
return resourceFinderStack.hasNext();
}
@Override
public String next() {
return resourceFinderStack.next();
}
@Override
public void remove() {
resourceFinderStack.next();
}
@Override
public InputStream open() {
return resourceFinderStack.open();
}
@Override
public void reset() {
resourceFinderStack.reset();
}
}
}