/*
* 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.corepersistence.pipeline.read.collect;
import org.apache.usergrid.corepersistence.pipeline.read.AbstractFilter;
import org.apache.usergrid.corepersistence.pipeline.read.EdgePath;
import org.apache.usergrid.corepersistence.pipeline.read.FilterResult;
import org.apache.usergrid.persistence.ConnectionRef;
import org.apache.usergrid.persistence.cassandra.ConnectionRefImpl;
import org.apache.usergrid.persistence.model.entity.Id;
import com.google.common.base.Optional;
import com.google.inject.Inject;
import com.google.inject.assistedinject.Assisted;
import rx.Observable;
/**
* This class only exists for 1.0 compatibility, remove once services no longer need connection refs
*/
public class ConnectionRefFilter extends AbstractFilter<FilterResult<Id>, FilterResult<ConnectionRef>> {
private final Id sourceId;
private final String connectionType;
@Inject
public ConnectionRefFilter( @Assisted( "sourceId" ) final Id sourceId,
@Assisted( "connectionType" ) final String connectionType ) {
this.sourceId = sourceId;
this.connectionType = connectionType;
}
@Override
public Observable<FilterResult<ConnectionRef>> call( final Observable<FilterResult<Id>> filterResultObservable ) {
return filterResultObservable.map( targetResult -> {
final Id targetId = targetResult.getValue();
final ConnectionRef ref =
new ConnectionRefImpl( sourceId.getType(), sourceId.getUuid(), connectionType, targetId.getType(),
targetId.getUuid() );
return new FilterResult<>( ref, Optional.<EdgePath>absent() );
} );
}
}