/*
* 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.isis.runtimes.dflt.remoting.protocol.internal;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.spec.ObjectSpecification;
import org.apache.isis.core.metamodel.spec.SpecificationLoader;
import org.apache.isis.runtimes.dflt.remoting.common.data.Data;
import org.apache.isis.runtimes.dflt.remoting.common.data.common.ObjectData;
import org.apache.isis.runtimes.dflt.remoting.common.data.query.PersistenceQueryData;
import org.apache.isis.runtimes.dflt.remoting.common.exchange.KnownObjectsRequest;
import org.apache.isis.runtimes.dflt.remoting.common.protocol.ObjectEncoderDecoder;
import org.apache.isis.runtimes.dflt.remoting.common.protocol.PersistenceQueryEncoder;
import org.apache.isis.runtimes.dflt.runtime.system.context.IsisContext;
import org.apache.isis.runtimes.dflt.runtime.system.persistence.PersistenceQuery;
public abstract class PersistenceQueryEncoderAbstract implements PersistenceQueryEncoder {
private ObjectEncoderDecoder objectEncoder;
@Override
public PersistenceQuery decode(final PersistenceQueryData persistenceQueryData) {
final String typeName = persistenceQueryData.getType();
return doDecode(loadSpecification(typeName), persistenceQueryData);
}
protected abstract PersistenceQuery doDecode(ObjectSpecification specification, PersistenceQueryData persistenceQueryData);
private ObjectSpecification loadSpecification(final String typeName) {
return getSpecificationLoader().loadSpecification(typeName);
}
/**
* Convenience method for any implementations that need to map over
* {@link ObjectAdapter}s.
*
* @see #decodeObject(ObjectData)
*/
protected ObjectData encodeObject(final ObjectAdapter adapter) {
// REVIEW: this implementation is a bit of a hack...
final Data[] datas = getObjectEncoder().encodeActionParameters(new ObjectSpecification[] { adapter.getSpecification() }, new ObjectAdapter[] { adapter }, new KnownObjectsRequest());
return (ObjectData) datas[0];
}
/**
* Convenience method for any implementations that need to map over
* {@link ObjectAdapter}s.
*
* @see #encodeObject(ObjectAdapter)
*/
protected ObjectAdapter decodeObject(final ObjectData objectData) {
return getObjectEncoder().decode(objectData);
}
// ///////////////////////////////////////////////////////////////////
// Dependencies (injected)
// ///////////////////////////////////////////////////////////////////
protected ObjectEncoderDecoder getObjectEncoder() {
return objectEncoder;
}
@Override
public void setObjectEncoder(final ObjectEncoderDecoder objectEncoder) {
this.objectEncoder = objectEncoder;
}
// ///////////////////////////////////////////////////////////////////
// Dependencies (from context)
// ///////////////////////////////////////////////////////////////////
private static SpecificationLoader getSpecificationLoader() {
return IsisContext.getSpecificationLoader();
}
}