com.emc.atmos.api.jersey.JerseyUtil Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of atmos-client Show documentation
Show all versions of atmos-client Show documentation
EMC Atmos Client for Java - provides REST access to object data on EMC platforms using the Atmos API.
/*
* Copyright (c) 2013-2016, EMC Corporation.
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* + Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* + Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* + The name of EMC Corporation may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package com.emc.atmos.api.jersey;
import com.emc.atmos.AtmosException;
import com.emc.atmos.api.AtmosConfig;
import com.emc.atmos.api.jersey.provider.*;
import com.emc.util.SslUtil;
import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.config.ClientConfig;
import com.sun.jersey.api.client.config.DefaultClientConfig;
import com.sun.jersey.client.urlconnection.HTTPSProperties;
import com.sun.jersey.client.urlconnection.HttpURLConnectionFactory;
import com.sun.jersey.client.urlconnection.URLConnectionClientHandler;
import com.sun.jersey.core.impl.provider.entity.ByteArrayProvider;
import com.sun.jersey.core.impl.provider.entity.FileProvider;
import com.sun.jersey.core.impl.provider.entity.StringProvider;
import com.sun.jersey.core.impl.provider.entity.XMLRootElementProvider;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.MessageBodyWriter;
import java.util.List;
public class JerseyUtil {
public static Client createClient( AtmosConfig config,
List>> readers,
List>> writers ) {
try {
ClientConfig clientConfig = new DefaultClientConfig();
// register an open trust manager to allow SSL connections to servers with self-signed certificates
if ( config.isDisableSslValidation() ) {
clientConfig.getProperties().put( HTTPSProperties.PROPERTY_HTTPS_PROPERTIES,
new HTTPSProperties( SslUtil.gullibleVerifier,
SslUtil.createGullibleSslContext() ) );
}
addHandlers( clientConfig, readers, writers );
Client client;
if ( config.getProxyUri() != null ) {
// set proxy configuration
HttpURLConnectionFactory factory = new ProxyURLConnectionFactory( config.getProxyUri(),
config.getProxyUser(),
config.getProxyPassword() );
client = new Client( new URLConnectionClientHandler( factory ), clientConfig );
} else {
// this should pick up proxy config from system properties
client = Client.create( clientConfig );
}
// add preemptive proxy authorization (this will only work for unencrypted requests)
String proxyUser = config.getProxyUser(), proxyPassword = config.getProxyPassword();
if ( proxyUser == null ) {
proxyUser = System.getProperty( "http.proxyUser" );
proxyPassword = System.getProperty( "http.proxyPassword" );
}
client.addFilter( new ProxyAuthFilter( proxyUser, proxyPassword ) );
addFilters( client, config );
return client;
} catch ( Exception e ) {
throw new AtmosException( "Error configuring REST client", e );
}
}
static void addHandlers( ClientConfig clientConfig,
List>> readers,
List>> writers ) {
// add our message body handlers
clientConfig.getClasses().clear();
// custom types and buffered writers to ensure content-length is set
clientConfig.getClasses().add( MeasuredStringWriter.class );
clientConfig.getClasses().add( MeasuredJaxbWriter.App.class );
clientConfig.getClasses().add( MeasuredJaxbWriter.Text.class );
clientConfig.getClasses().add( MeasuredJaxbWriter.General.class );
clientConfig.getClasses().add( MeasuredInputStreamWriter.class );
clientConfig.getClasses().add( BufferSegmentWriter.class );
clientConfig.getClasses().add( MultipartReader.class );
// Jersey providers for types we support
clientConfig.getClasses().add( ByteArrayProvider.class );
clientConfig.getClasses().add( FileProvider.class );
clientConfig.getClasses().add( StringProvider.class );
clientConfig.getClasses().add( XMLRootElementProvider.App.class );
clientConfig.getClasses().add( XMLRootElementProvider.Text.class );
clientConfig.getClasses().add( XMLRootElementProvider.General.class );
// user-defined types
if ( readers != null ) {
for ( Class> reader : readers ) {
clientConfig.getClasses().add( reader );
}
}
if ( writers != null ) {
for ( Class> writer : writers ) {
clientConfig.getClasses().add( writer );
}
}
}
static void addFilters( Client client, AtmosConfig config ) {
// add filters
client.addFilter( new ChecksumFilter() );
client.addFilter( new ErrorFilter() );
if ( config.isEnableRetry() ) client.addFilter( new RetryFilter( config ) );
client.addFilter( new AuthFilter( config ) );
}
private JerseyUtil() {
}
}