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Library for remote naming (JNDI) with JBoss AS
package org.jboss.naming.remote.client;
import java.io.Closeable;
import java.io.IOException;
import java.net.SocketAddress;
import java.net.URI;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.atomic.AtomicInteger;
import javax.net.ssl.SSLContext;
import javax.security.auth.callback.CallbackHandler;
import org.jboss.logging.Logger;
import org.jboss.remoting3.Attachments;
import org.jboss.remoting3.CloseHandler;
import org.jboss.remoting3.Connection;
import org.jboss.remoting3.DuplicateRegistrationException;
import org.jboss.remoting3.Endpoint;
import org.jboss.remoting3.OpenListener;
import org.jboss.remoting3.Registration;
import org.jboss.remoting3.Remoting;
import org.jboss.remoting3.ServiceRegistrationException;
import org.jboss.remoting3.UnknownURISchemeException;
import org.jboss.remoting3.remote.RemoteConnectionProviderFactory;
import org.jboss.remoting3.spi.ConnectionProviderFactory;
import org.xnio.IoFuture;
import org.xnio.OptionMap;
import org.xnio.XnioWorker;
import org.xnio.ssl.XnioSsl;
/**
* @author John Bailey
*/
public class EndpointCache {
private static final Logger logger = Logger.getLogger(EndpointCache.class);
private final ConcurrentMap cache = new ConcurrentHashMap();
public synchronized Endpoint get(final String endpointName, final OptionMap endPointCreationOptions, final OptionMap remoteConnectionProviderOptions) throws IOException {
final CacheKey endpointHash = new CacheKey(remoteConnectionProviderOptions, endPointCreationOptions, endpointName);
CacheEntry cacheEntry = cache.get(endpointHash);
if (cacheEntry == null) {
final Endpoint endpoint = Remoting.createEndpoint(endpointName, endPointCreationOptions);
endpoint.addConnectionProvider("remote", new RemoteConnectionProviderFactory(), remoteConnectionProviderOptions);
cacheEntry = new CacheEntry(endpoint, new EndpointWrapper(endpointHash, endpoint));
cache.putIfAbsent(endpointHash, cacheEntry);
}
cacheEntry.referenceCount.incrementAndGet();
return cacheEntry.endpointWrapper;
}
public void release(final CacheKey endpointHash, final boolean async) {
Endpoint toClose;
synchronized (this) {
final CacheEntry cacheEntry = cache.get(endpointHash);
if (cacheEntry.referenceCount.decrementAndGet() == 0) {
try {
toClose = cacheEntry.endpoint;
} finally {
cache.remove(endpointHash);
}
} else {
return;
}
}
if (async) {
toClose.closeAsync();
} else {
try {
toClose.close();
} catch (IOException e) {
throw new RuntimeException("Failed to close endpoint", e);
}
}
}
public void shutdown() {
final CacheEntry[] cacheEntries;
synchronized (this) {
cacheEntries = cache.values().toArray(new CacheEntry[cache.size()]);
}
for (CacheEntry entry : cacheEntries) {
safeClose(entry.endpoint);
}
}
private class EndpointWrapper implements Endpoint {
private final CacheKey endpointHash;
private final Endpoint endpoint;
private EndpointWrapper(final CacheKey endpointHash, final Endpoint endpoint) {
this.endpointHash = endpointHash;
this.endpoint = endpoint;
}
public String getName() {
return endpoint.getName();
}
public Registration registerService(String s, OpenListener openListener, OptionMap optionMap) throws ServiceRegistrationException {
return endpoint.registerService(s, openListener, optionMap);
}
public IoFuture connect(URI uri) throws IOException {
return endpoint.connect(uri);
}
public IoFuture connect(URI uri, OptionMap optionMap) throws IOException {
return endpoint.connect(uri, optionMap);
}
public IoFuture connect(URI uri, OptionMap optionMap, CallbackHandler callbackHandler) throws IOException {
return endpoint.connect(uri, optionMap, callbackHandler);
}
public IoFuture connect(URI uri, OptionMap optionMap, CallbackHandler callbackHandler, SSLContext sslContext) throws IOException {
return endpoint.connect(uri, optionMap, callbackHandler, sslContext);
}
public IoFuture connect(URI uri, OptionMap optionMap, CallbackHandler callbackHandler, XnioSsl xnioSsl) throws IOException {
return endpoint.connect(uri, optionMap, callbackHandler, xnioSsl);
}
public IoFuture connect(URI uri, OptionMap optionMap, String s, String s1, char[] chars) throws IOException {
return endpoint.connect(uri, optionMap, s, s1, chars);
}
public IoFuture connect(URI uri, OptionMap optionMap, String s, String s1, char[] chars, SSLContext sslContext) throws IOException {
return endpoint.connect(uri, optionMap, s, s1, chars, sslContext);
}
public IoFuture connect(URI uri, OptionMap optionMap, String s, String s1, char[] chars, XnioSsl xnioSsl) throws IOException {
return endpoint.connect(uri, optionMap, s, s1, chars, xnioSsl);
}
public IoFuture connect(String s, SocketAddress socketAddress, SocketAddress socketAddress1) throws IOException {
return endpoint.connect(s, socketAddress, socketAddress1);
}
public IoFuture connect(String s, SocketAddress socketAddress, SocketAddress socketAddress1, OptionMap optionMap) throws IOException {
return endpoint.connect(s, socketAddress, socketAddress1, optionMap);
}
public IoFuture connect(String s, SocketAddress socketAddress, SocketAddress socketAddress1, OptionMap optionMap, CallbackHandler callbackHandler) throws IOException {
return endpoint.connect(s, socketAddress, socketAddress1, optionMap, callbackHandler);
}
public IoFuture connect(String s, SocketAddress socketAddress, SocketAddress socketAddress1, OptionMap optionMap, CallbackHandler callbackHandler, SSLContext sslContext) throws IOException {
return endpoint.connect(s, socketAddress, socketAddress1, optionMap, callbackHandler, sslContext);
}
public IoFuture connect(String s, SocketAddress socketAddress, SocketAddress socketAddress1, OptionMap optionMap, CallbackHandler callbackHandler, XnioSsl xnioSsl) throws IOException {
return endpoint.connect(s, socketAddress, socketAddress1, optionMap, callbackHandler, xnioSsl);
}
public IoFuture connect(String s, SocketAddress socketAddress, SocketAddress socketAddress1, OptionMap optionMap, String s1, String s2, char[] chars) throws IOException {
return endpoint.connect(s, socketAddress, socketAddress1, optionMap, s1, s2, chars);
}
public IoFuture connect(String s, SocketAddress socketAddress, SocketAddress socketAddress1, OptionMap optionMap, String s1, String s2, char[] chars, SSLContext sslContext) throws IOException {
return endpoint.connect(s, socketAddress, socketAddress1, optionMap, s1, s2, chars, sslContext);
}
public IoFuture connect(String s, SocketAddress socketAddress, SocketAddress socketAddress1, OptionMap optionMap, String s1, String s2, char[] chars, XnioSsl xnioSsl) throws IOException {
return endpoint.connect(s, socketAddress, socketAddress1, optionMap, s1, s2, chars, xnioSsl);
}
public Registration addConnectionProvider(String s, ConnectionProviderFactory connectionProviderFactory, OptionMap optionMap) throws DuplicateRegistrationException, IOException {
return endpoint.addConnectionProvider(s, connectionProviderFactory, optionMap);
}
public T getConnectionProviderInterface(String s, Class tClass) throws UnknownURISchemeException, ClassCastException {
return endpoint.getConnectionProviderInterface(s, tClass);
}
public boolean isValidUriScheme(String s) {
return endpoint.isValidUriScheme(s);
}
public XnioWorker getXnioWorker() {
return endpoint.getXnioWorker();
}
public void close() throws IOException {
EndpointCache.this.release(endpointHash, false);
}
public void awaitClosed() throws InterruptedException {
endpoint.awaitClosed();
}
public void awaitClosedUninterruptibly() {
endpoint.awaitClosedUninterruptibly();
}
public void closeAsync() {
EndpointCache.this.release(endpointHash, true);
}
public Key addCloseHandler(CloseHandler closeHandler) {
return endpoint.addCloseHandler(closeHandler);
}
public Attachments getAttachments() {
return endpoint.getAttachments();
}
}
private static class CacheEntry {
private final AtomicInteger referenceCount = new AtomicInteger(0);
private final Endpoint endpoint;
private final EndpointWrapper endpointWrapper;
private CacheEntry(final Endpoint endpoint, final EndpointWrapper endpointWrapper) {
this.endpoint = endpoint;
this.endpointWrapper = endpointWrapper;
}
}
private static class CacheKey {
final String endpointName;
final OptionMap connectOptions;
final OptionMap remoteConnectionProviderOptions;
private CacheKey(final OptionMap remoteConnectionProviderOptions, final OptionMap connectOptions, final String endpointName) {
this.remoteConnectionProviderOptions = remoteConnectionProviderOptions;
this.connectOptions = connectOptions;
this.endpointName = endpointName;
}
@Override
public boolean equals(final Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
final CacheKey cacheKey = (CacheKey) o;
if (connectOptions != null ? !connectOptions.equals(cacheKey.connectOptions) : cacheKey.connectOptions != null)
return false;
if (endpointName != null ? !endpointName.equals(cacheKey.endpointName) : cacheKey.endpointName != null)
return false;
if (remoteConnectionProviderOptions != null ? !remoteConnectionProviderOptions.equals(cacheKey.remoteConnectionProviderOptions) : cacheKey.remoteConnectionProviderOptions != null)
return false;
return true;
}
@Override
public int hashCode() {
int result = endpointName != null ? endpointName.hashCode() : 0;
result = 31 * result + (connectOptions != null ? connectOptions.hashCode() : 0);
result = 31 * result + (remoteConnectionProviderOptions != null ? remoteConnectionProviderOptions.hashCode() : 0);
return result;
}
}
private static void safeClose(Closeable closable) {
try {
closable.close();
} catch (Throwable t) {
logger.debug("Failed to close endpoint ", t);
}
}
}
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