/*******************************************************************************
* Copyright (c) 2013 Sonatype, Inc.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Sonatype, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.aether.transport.http;
import java.io.Closeable;
import java.util.Arrays;
import java.util.Iterator;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import org.apache.http.HttpHost;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.PlainSocketFactory;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.impl.conn.PoolingClientConnectionManager;
import org.eclipse.aether.RepositoryCache;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.util.ConfigUtils;
/**
* Container for HTTP-related state that can be shared across incarnations of the transporter to optimize the
* communication with servers.
*/
final class GlobalState
implements Closeable
{
static class CompoundKey
{
private final Object[] keys;
public CompoundKey( Object... keys )
{
this.keys = keys;
}
@Override
public boolean equals( Object obj )
{
if ( this == obj )
{
return true;
}
if ( obj == null || !getClass().equals( obj.getClass() ) )
{
return false;
}
CompoundKey that = (CompoundKey) obj;
return Arrays.equals( keys, that.keys );
}
@Override
public int hashCode()
{
int hash = 17;
hash = hash * 31 + Arrays.hashCode( keys );
return hash;
}
@Override
public String toString()
{
return Arrays.toString( keys );
}
}
private static final String KEY = GlobalState.class.getName();
private static final String CONFIG_PROP_CACHE_STATE = "aether.connector.http.cacheState";
private final ConcurrentMap<SslConfig, ClientConnectionManager> connectionManagers;
private final ConcurrentMap<CompoundKey, Object> userTokens;
private final ConcurrentMap<HttpHost, AuthSchemePool> authSchemePools;
private final ConcurrentMap<CompoundKey, Boolean> expectContinues;
public static GlobalState get( RepositorySystemSession session )
{
GlobalState cache;
RepositoryCache repoCache = session.getCache();
if ( repoCache == null || !ConfigUtils.getBoolean( session, true, CONFIG_PROP_CACHE_STATE ) )
{
cache = null;
}
else
{
Object tmp = repoCache.get( session, KEY );
if ( tmp instanceof GlobalState )
{
cache = (GlobalState) tmp;
}
else
{
synchronized ( GlobalState.class )
{
tmp = repoCache.get( session, KEY );
if ( tmp instanceof GlobalState )
{
cache = (GlobalState) tmp;
}
else
{
cache = new GlobalState();
repoCache.put( session, KEY, cache );
}
}
}
}
return cache;
}
private GlobalState()
{
connectionManagers = new ConcurrentHashMap<SslConfig, ClientConnectionManager>();
userTokens = new ConcurrentHashMap<CompoundKey, Object>();
authSchemePools = new ConcurrentHashMap<HttpHost, AuthSchemePool>();
expectContinues = new ConcurrentHashMap<CompoundKey, Boolean>();
}
public void close()
{
for ( Iterator<Map.Entry<SslConfig, ClientConnectionManager>> it = connectionManagers.entrySet().iterator(); it.hasNext(); )
{
ClientConnectionManager connMgr = it.next().getValue();
it.remove();
connMgr.shutdown();
}
}
public ClientConnectionManager getConnectionManager( SslConfig config )
{
ClientConnectionManager manager = connectionManagers.get( config );
if ( manager == null )
{
ClientConnectionManager connMgr = newConnectionManager( config );
manager = connectionManagers.putIfAbsent( config, connMgr );
if ( manager != null )
{
connMgr.shutdown();
}
else
{
manager = connMgr;
}
}
return manager;
}
public static ClientConnectionManager newConnectionManager( SslConfig sslConfig )
{
SchemeRegistry schemeReg = new SchemeRegistry();
schemeReg.register( new Scheme( "http", 80, new PlainSocketFactory() ) );
schemeReg.register( new Scheme( "https", 443, new SslSocketFactory( sslConfig ) ) );
PoolingClientConnectionManager connMgr = new PoolingClientConnectionManager( schemeReg );
connMgr.setMaxTotal( 100 );
connMgr.setDefaultMaxPerRoute( 50 );
return connMgr;
}
public Object getUserToken( CompoundKey key )
{
return userTokens.get( key );
}
public void setUserToken( CompoundKey key, Object userToken )
{
if ( userToken != null )
{
userTokens.put( key, userToken );
}
else
{
userTokens.remove( key );
}
}
public ConcurrentMap<HttpHost, AuthSchemePool> getAuthSchemePools()
{
return authSchemePools;
}
public Boolean getExpectContinue( CompoundKey key )
{
return expectContinues.get( key );
}
public void setExpectContinue( CompoundKey key, boolean enabled )
{
expectContinues.put( key, enabled );
}
}