com.facebook.presto.jdbc.internal.apache.http.auth.AuthSchemeRegistry Maven / Gradle / Ivy
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*
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package com.facebook.presto.jdbc.internal.apache.http.auth;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import com.facebook.presto.jdbc.internal.apache.http.HttpRequest;
import com.facebook.presto.jdbc.internal.apache.http.annotation.Contract;
import com.facebook.presto.jdbc.internal.apache.http.annotation.ThreadingBehavior;
import com.facebook.presto.jdbc.internal.apache.http.config.Lookup;
import com.facebook.presto.jdbc.internal.apache.http.params.HttpParams;
import com.facebook.presto.jdbc.internal.apache.http.protocol.ExecutionContext;
import com.facebook.presto.jdbc.internal.apache.http.protocol.HttpContext;
import com.facebook.presto.jdbc.internal.apache.http.util.Args;
/**
* Authentication scheme registry that can be used to obtain the corresponding
* authentication scheme implementation for a given type of authorization challenge.
*
* @since 4.0
*
* @deprecated (4.3) use {@link com.facebook.presto.jdbc.internal.apache.http.config.Registry}
*/
@Contract(threading = ThreadingBehavior.SAFE)
@Deprecated
public final class AuthSchemeRegistry implements Lookup {
private final ConcurrentHashMap registeredSchemes;
public AuthSchemeRegistry() {
super();
this.registeredSchemes = new ConcurrentHashMap();
}
/**
* Registers a {@link AuthSchemeFactory} with the given identifier. If a factory with the
* given name already exists it will be overridden. This name is the same one used to
* retrieve the {@link AuthScheme authentication scheme} from {@link #getAuthScheme}.
*
*
* Please note that custom authentication preferences, if used, need to be updated accordingly
* for the new {@link AuthScheme authentication scheme} to take effect.
*
*
* @param name the identifier for this scheme
* @param factory the {@link AuthSchemeFactory} class to register
*
* @see #getAuthScheme
*/
public void register(
final String name,
final AuthSchemeFactory factory) {
Args.notNull(name, "Name");
Args.notNull(factory, "Authentication scheme factory");
registeredSchemes.put(name.toLowerCase(Locale.ENGLISH), factory);
}
/**
* Unregisters the class implementing an {@link AuthScheme authentication scheme} with
* the given name.
*
* @param name the identifier of the class to unregister
*/
public void unregister(final String name) {
Args.notNull(name, "Name");
registeredSchemes.remove(name.toLowerCase(Locale.ENGLISH));
}
/**
* Gets the {@link AuthScheme authentication scheme} with the given name.
*
* @param name the {@link AuthScheme authentication scheme} identifier
* @param params the {@link HttpParams HTTP parameters} for the authentication
* scheme.
*
* @return {@link AuthScheme authentication scheme}
*
* @throws IllegalStateException if a scheme with the given name cannot be found
*/
public AuthScheme getAuthScheme(final String name, final HttpParams params)
throws IllegalStateException {
Args.notNull(name, "Name");
final AuthSchemeFactory factory = registeredSchemes.get(name.toLowerCase(Locale.ENGLISH));
if (factory != null) {
return factory.newInstance(params);
} else {
throw new IllegalStateException("Unsupported authentication scheme: " + name);
}
}
/**
* Obtains a list containing the names of all registered {@link AuthScheme authentication
* schemes}
*
* @return list of registered scheme names
*/
public List getSchemeNames() {
return new ArrayList(registeredSchemes.keySet());
}
/**
* Populates the internal collection of registered {@link AuthScheme authentication schemes}
* with the content of the map passed as a parameter.
*
* @param map authentication schemes
*/
public void setItems(final Map map) {
if (map == null) {
return;
}
registeredSchemes.clear();
registeredSchemes.putAll(map);
}
@Override
public AuthSchemeProvider lookup(final String name) {
return new AuthSchemeProvider() {
@Override
public AuthScheme create(final HttpContext context) {
final HttpRequest request = (HttpRequest) context.getAttribute(
ExecutionContext.HTTP_REQUEST);
return getAuthScheme(name, request.getParams());
}
};
}
}
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