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*
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package org.glassfish.admin.rest.adapter;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.ServiceConfigurationError;
import org.glassfish.jersey.internal.ServiceFinder;
import org.glassfish.jersey.internal.ServiceFinder.ServiceIteratorProvider;
import org.glassfish.jersey.internal.spi.AutoDiscoverable;
import org.glassfish.jersey.server.spi.ComponentProvider;
/** Goal of this finder is to be fast and efficient.
* It is hardcoded implementation.
*
* @author martinmares
*/
public class AdminJerseyServiceIteratorProvider extends ServiceIteratorProvider {
private static final Map<String, String[]> services = new HashMap<String, String[]>();
static {
// services.put(ContainerProvider.class.getName(), new String[] {
// "org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpContainerProvider"
// });
services.put(AutoDiscoverable.class.getName(), new String[] {
// "org.glassfish.jersey.server.validation.internal.ValidationAutoDiscoverable",
// "org.glassfish.jersey.jsonp.internal.JsonProcessingAutoDiscoverable",
"org.glassfish.jersey.server.filter.internal.ServerFiltersAutoDiscoverable",
// "org.glassfish.jersey.server.wadl.internal.WadlAutoDiscoverable"
});
services.put(ComponentProvider.class.getName(), new String[] {
// "org.glassfish.jersey.gf.cdi.CdiComponentProvider",
// "org.glassfish.jersey.gf.ejb.EjbComponentProvider"
});
}
private static final ThreadLocal<Boolean> applyDefinedValues = new ThreadLocal<Boolean>() {
@Override
protected Boolean initialValue() {
return Boolean.FALSE;
}
};
private static final ServiceIteratorProvider defaultProvider = new ServiceFinder.DefaultServiceIteratorProvider();
public AdminJerseyServiceIteratorProvider() {
applyDefinedValues.set(Boolean.TRUE);
}
public void disable() {
applyDefinedValues.remove();
}
private String[] getServiceNames(Class service, String serviceName) {
if (serviceName == null) {
return services.get(service.getName());
} else {
return services.get(serviceName);
}
}
@Override
public <T> Iterator<Class<T>> createClassIterator(Class<T> service, String serviceName, ClassLoader loader, boolean ignoreOnClassNotFound) {
final String[] values = getServiceNames(service, serviceName);
if (!applyDefinedValues.get() || values == null) {
return defaultProvider.createClassIterator(service, serviceName, loader, ignoreOnClassNotFound);
} else {
return new ClassIterator<Class<T>>(services.get(serviceName), loader, ignoreOnClassNotFound);
}
}
@Override
public <T> Iterator<T> createIterator(final Class<T> service, final String serviceName, final ClassLoader loader, final boolean ignoreOnClassNotFound) {
final String[] values = getServiceNames(service, serviceName);
if (!applyDefinedValues.get() || values == null) {
return defaultProvider.createIterator(service, serviceName, loader, ignoreOnClassNotFound);
} else {
return new Iterator<T>() {
Iterator<Class<T>> delegate = createClassIterator(service, serviceName, loader, ignoreOnClassNotFound);
@Override
public boolean hasNext() {
return delegate.hasNext();
}
@Override
public T next() {
try {
return delegate.next().newInstance();
} catch (Exception ex) {
throw new ServiceConfigurationError(ex.getLocalizedMessage(), ex);
}
}
@Override
public void remove() {
delegate.remove();
}
};
}
}
public static class ClassIterator<T extends Class> implements Iterator<T> {
private final String[] names;
private final ClassLoader classLoader;
private final boolean ignoreOnClassNotFound;
private int index = -1;
private String clazzName;
private T clazz;
private ClassIterator(String[] names, ClassLoader classLoader, boolean ignoreOnClassNotFound) {
this.names = names;
this.classLoader = classLoader;
this.ignoreOnClassNotFound = ignoreOnClassNotFound;
}
@Override
public boolean hasNext() {
if (clazzName != null) {
return true;
}
if (names == null) {
return false;
}
//Find next index
while (clazzName == null) {
if ((++index) >= names.length) {
return false;
}
clazzName = names[index];
if (ignoreOnClassNotFound) {
try {
clazz = (T) Class.forName(clazzName, true, classLoader);
} catch (ClassNotFoundException ex) {
//Search for next one
clazzName = null;
}
}
}
return true;
}
@Override
public T next() {
if (hasNext()) {
try {
if (clazz != null) {
return clazz;
} else {
return (T) Class.forName(clazzName, true, classLoader);
}
} catch (Exception ex) {
throw new ServiceConfigurationError(ex.getLocalizedMessage(), ex);
} finally {
clazz = null;
clazzName = null;
}
} else {
throw new NoSuchElementException();
}
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
}
}