/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.usergrid.mongo.protocol;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.Map;
import org.bson.BSONObject;
import org.bson.BasicBSONObject;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBufferInputStream;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.MessageEvent;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.usergrid.management.ApplicationInfo;
import org.apache.usergrid.mongo.MongoChannelHandler;
import org.apache.usergrid.mongo.query.MongoQueryParser;
import org.apache.usergrid.mongo.utils.BSONUtils;
import org.apache.usergrid.persistence.Entity;
import org.apache.usergrid.persistence.EntityManager;
import org.apache.usergrid.persistence.index.query.Query;
import org.apache.usergrid.persistence.Results;
import org.apache.usergrid.persistence.index.query.Identifier;
import org.apache.usergrid.security.shiro.utils.SubjectUtils;
public class OpUpdate extends OpCrud {
private static final Logger logger = LoggerFactory.getLogger( OpUpdate.class );
private int flags;
private BSONObject selector;
private BSONObject update;
public OpUpdate() {
opCode = OP_UPDATE;
}
public int getFlags() {
return flags;
}
public void setFlags( int flags ) {
this.flags = flags;
}
public BSONObject getSelector() {
return selector;
}
public void setSelector( BSONObject selector ) {
this.selector = selector;
}
public void setSelector( Map<?, ?> map ) {
selector = new BasicBSONObject();
selector.putAll( map );
}
public BSONObject getUpdate() {
return update;
}
public void setUpdate( BSONObject update ) {
this.update = update;
}
public void setUpdate( Map<?, ?> map ) {
update = new BasicBSONObject();
update.putAll( map );
}
@Override
public void decode( ChannelBuffer buffer ) throws IOException {
super.decode( buffer );
buffer.readInt();
fullCollectionName = readCString( buffer );
flags = buffer.readInt();
selector = BSONUtils.decoder().readObject( new ChannelBufferInputStream( buffer ) );
update = BSONUtils.decoder().readObject( new ChannelBufferInputStream( buffer ) );
}
@Override
public ChannelBuffer encode( ChannelBuffer buffer ) {
int l = 24; // 6 ints * 4 bytes
ByteBuffer fullCollectionNameBytes = getCString( fullCollectionName );
l += fullCollectionNameBytes.capacity();
ByteBuffer selectorBytes = encodeDocument( selector );
l += selectorBytes.capacity();
ByteBuffer updateBytes = encodeDocument( update );
l += updateBytes.capacity();
messageLength = l;
buffer = super.encode( buffer );
buffer.writeInt( 0 );
buffer.writeBytes( fullCollectionNameBytes );
buffer.writeInt( flags );
buffer.writeBytes( selectorBytes );
buffer.writeBytes( updateBytes );
return buffer;
}
/*
* (non-Javadoc)
*
* @see org.apache.usergrid.mongo.protocol.OpCrud#doOp(org.apache.usergrid.mongo.
* MongoChannelHandler, org.jboss.netty.channel.ChannelHandlerContext,
* org.jboss.netty.channel.MessageEvent)
*/
@SuppressWarnings("unchecked")
@Override
public OpReply doOp( MongoChannelHandler handler, ChannelHandlerContext ctx, MessageEvent messageEvent ) {
ApplicationInfo application = SubjectUtils.getApplication( Identifier.from( getDatabaseName() ) );
if ( application == null ) {
ctx.setAttachment( new IllegalArgumentException(
String.format( "Could not find application with name '%s' ", getDatabaseName() ) ) );
return null;
}
EntityManager em = handler.getEmf().getEntityManager( application.getId() );
Results results = null;
Query q = MongoQueryParser.toNativeQuery( selector, 1000 );
if ( q == null ) {
ctx.setAttachment( new IllegalArgumentException( "Could not parse query" ) );
return null;
}
try {
do {
if ( results != null ) {
q.setCursor( results.getCursor() );
}
results = em.searchCollection( em.getApplicationRef(), getCollectionName(), q );
// apply the update
for ( Entity entity : results.getEntities() ) {
em.updateProperties( entity, update.toMap() );
}
}
while ( results != null && results.getCursor() != null );
}
catch ( Exception e ) {
logger.error( "Unable to perform update with query {} and update {}",
new Object[] { selector, update, e } );
ctx.setAttachment( e );
}
return null;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return "OpUpdate [flags=" + flags + ", selector=" + selector + ", update=" + update + ", fullCollectionName="
+ fullCollectionName + ", messageLength=" + messageLength + ", requestID=" + requestID + ", responseTo="
+ responseTo + ", opCode=" + opCode + "]";
}
}