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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2011-2014 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* http://glassfish.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
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* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
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*
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* If applicable, add the following below the License Header, with the fields
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* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
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*/
package org.glassfish.jersey.client;
import java.net.URI;
import java.util.Map;
import java.util.concurrent.LinkedBlockingDeque;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ws.rs.core.Configuration;
import javax.ws.rs.core.Link;
import javax.ws.rs.core.UriBuilder;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLContext;
import org.glassfish.jersey.SslConfigurator;
import org.glassfish.jersey.client.internal.LocalizationMessages;
import org.glassfish.jersey.internal.util.collection.UnsafeValue;
import org.glassfish.jersey.internal.util.collection.Values;
import static jersey.repackaged.com.google.common.base.Preconditions.checkNotNull;
import static jersey.repackaged.com.google.common.base.Preconditions.checkState;
/**
* Jersey implementation of {@link javax.ws.rs.client.Client JAX-RS Client}
* contract.
*
* @author Marek Potociar (marek.potociar at oracle.com)
*/
public class JerseyClient implements javax.ws.rs.client.Client, Initializable {
private static final Logger LOG = Logger.getLogger(JerseyClient.class.getName());
private final AtomicBoolean closedFlag = new AtomicBoolean(false);
private final ClientConfig config;
private final HostnameVerifier hostnameVerifier;
private final UnsafeValue sslContext;
private final LinkedBlockingDeque shutdownHooks = new LinkedBlockingDeque();
/**
* Client instance shutdown hook.
*/
static interface ShutdownHook {
/**
* Invoked when the client instance is closed.
*/
public void onShutdown();
}
/**
* Create a new Jersey client instance using a default configuration.
*/
protected JerseyClient() {
this(null, (UnsafeValue) null, null);
}
/**
* Create a new Jersey client instance.
*
* @param config jersey client configuration.
* @param sslContext jersey client SSL context.
* @param verifier jersey client host name verifier.
*/
protected JerseyClient(final Configuration config,
final SSLContext sslContext,
final HostnameVerifier verifier) {
this(config, Values.unsafe(sslContext), verifier);
}
/**
* Create a new Jersey client instance.
*
* @param config jersey client configuration.
* @param sslContextProvider jersey client SSL context provider.
* @param verifier jersey client host name verifier.
*/
protected JerseyClient(final Configuration config,
final UnsafeValue sslContextProvider,
final HostnameVerifier verifier) {
this.config = config == null ? new ClientConfig(this) : new ClientConfig(this, config);
this.sslContext = Values.lazy(sslContextProvider != null ? sslContextProvider : createSslContextProvider());
this.hostnameVerifier = verifier;
}
private UnsafeValue createSslContextProvider() {
return new UnsafeValue() {
@Override
public SSLContext get() {
return SslConfigurator.getDefaultContext();
}
};
}
@Override
public void close() {
if (closedFlag.compareAndSet(false, true)) {
release();
}
}
private void release() {
ShutdownHook listener;
while ((listener = shutdownHooks.pollFirst()) != null) {
try {
listener.onShutdown();
} catch (Throwable t) {
LOG.log(Level.WARNING, LocalizationMessages.ERROR_SHUTDOWNHOOK_CLOSE(listener.getClass().getName()), t);
}
}
}
/**
* Register a new client shutdown hook.
*
* @param shutdownHook client shutdown hook.
*/
void registerShutdownHook(final ShutdownHook shutdownHook) {
checkNotClosed();
shutdownHooks.push(shutdownHook);
}
/**
* Check client state.
*
* @return {@code true} if current {@code JerseyClient} instance is closed, otherwise {@code false}.
*
* @see #close()
*/
public boolean isClosed() {
return closedFlag.get();
}
/**
* Check that the client instance has not been closed.
*
* @throws IllegalStateException in case the client instance has been closed already.
*/
void checkNotClosed() {
checkState(!closedFlag.get(), LocalizationMessages.CLIENT_INSTANCE_CLOSED());
}
@Override
public JerseyWebTarget target(final String uri) {
checkNotClosed();
checkNotNull(uri, LocalizationMessages.CLIENT_URI_TEMPLATE_NULL());
return new JerseyWebTarget(uri, this);
}
@Override
public JerseyWebTarget target(final URI uri) {
checkNotClosed();
checkNotNull(uri, LocalizationMessages.CLIENT_URI_NULL());
return new JerseyWebTarget(uri, this);
}
@Override
public JerseyWebTarget target(final UriBuilder uriBuilder) {
checkNotClosed();
checkNotNull(uriBuilder, LocalizationMessages.CLIENT_URI_BUILDER_NULL());
return new JerseyWebTarget(uriBuilder, this);
}
@Override
public JerseyWebTarget target(final Link link) {
checkNotClosed();
checkNotNull(link, LocalizationMessages.CLIENT_TARGET_LINK_NULL());
return new JerseyWebTarget(link, this);
}
@Override
public JerseyInvocation.Builder invocation(final Link link) {
checkNotClosed();
checkNotNull(link, LocalizationMessages.CLIENT_INVOCATION_LINK_NULL());
final JerseyWebTarget t = new JerseyWebTarget(link, this);
final String acceptType = link.getType();
return (acceptType != null) ? t.request(acceptType) : t.request();
}
@Override
public JerseyClient register(final Class providerClass) {
checkNotClosed();
config.register(providerClass);
return this;
}
@Override
public JerseyClient register(final Object provider) {
checkNotClosed();
config.register(provider);
return this;
}
@Override
public JerseyClient register(final Class providerClass, final int bindingPriority) {
checkNotClosed();
config.register(providerClass, bindingPriority);
return this;
}
@Override
public JerseyClient register(final Class providerClass, final Class... contracts) {
checkNotClosed();
config.register(providerClass, contracts);
return this;
}
@Override
public JerseyClient register(final Class providerClass, final Map, Integer> contracts) {
checkNotClosed();
config.register(providerClass, contracts);
return this;
}
@Override
public JerseyClient register(final Object provider, final int bindingPriority) {
checkNotClosed();
config.register(provider, bindingPriority);
return this;
}
@Override
public JerseyClient register(final Object provider, final Class... contracts) {
checkNotClosed();
config.register(provider, contracts);
return this;
}
@Override
public JerseyClient register(final Object provider, final Map, Integer> contracts) {
checkNotClosed();
config.register(provider, contracts);
return this;
}
@Override
public JerseyClient property(final String name, final Object value) {
checkNotClosed();
config.property(name, value);
return this;
}
@Override
public ClientConfig getConfiguration() {
checkNotClosed();
return config.getConfiguration();
}
@Override
public SSLContext getSslContext() {
return sslContext.get();
}
@Override
public HostnameVerifier getHostnameVerifier() {
return hostnameVerifier;
}
@Override
public JerseyClient preInitialize() {
config.preInitialize();
return this;
}
}
