/*
* 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.viewer.scimpi.dispatcher.view.simple;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.viewer.scimpi.dispatcher.AbstractElementProcessor;
import org.apache.isis.viewer.scimpi.dispatcher.ScimpiException;
import org.apache.isis.viewer.scimpi.dispatcher.context.RequestContext;
import org.apache.isis.viewer.scimpi.dispatcher.context.RequestContext.Scope;
import org.apache.isis.viewer.scimpi.dispatcher.processor.Request;
public class InitializeFromResult extends AbstractElementProcessor {
@Override
public void process(final Request request) {
disallowSourceAndDefault(request);
final String sourceObjectId = objectOrResult(request);
final Class<?> cls = forClass(request);
final String variableName = request.getRequiredProperty(NAME);
final String defaultObjectId = request.getOptionalProperty(DEFAULT);
final String scopeName = request.getOptionalProperty(SCOPE);
final Scope scope = RequestContext.scope(scopeName, Scope.REQUEST);
final RequestContext context = request.getContext();
final ObjectAdapter sourceObject = context.getMappedObject(sourceObjectId);
final boolean isSourceSet = sourceObject != null;
final boolean isSourceAssignable = isSourceSet && (cls == null || cls.isAssignableFrom(sourceObject.getObject().getClass()));
if (isSourceAssignable) {
request.appendDebug(" " + variableName + " set to " + sourceObjectId + " (" + scope + ")");
context.addVariable(variableName, sourceObjectId, scope);
} else {
request.appendDebug(" " + variableName + " set to " + sourceObjectId + " (" + scope + ")");
if (defaultObjectId != null) {
context.addVariable(variableName, defaultObjectId, scope);
}
context.changeScope(variableName, scope);
}
}
private String objectOrResult(final Request request) {
final String sourceObjectId = request.getOptionalProperty(OBJECT);
if (sourceObjectId == null) {
return (String) request.getContext().getVariable(RequestContext.RESULT);
} else {
return sourceObjectId;
}
}
private void disallowSourceAndDefault(final Request request) {
if (request.getOptionalProperty(DEFAULT) != null && request.getOptionalProperty(OBJECT) != null) {
throw new ScimpiException("Cannot specify both " + OBJECT + " and " + DEFAULT + " for the " + getName() + " element");
}
}
@Override
public String getName() {
return "initialize";
}
}