/*
* 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.html.task;
import java.util.List;
import org.apache.isis.core.commons.debug.DebugBuilder;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.consent.Consent;
import org.apache.isis.core.metamodel.spec.feature.ObjectAction;
import org.apache.isis.core.metamodel.spec.feature.ObjectActionParameter;
import org.apache.isis.core.metamodel.spec.feature.ParseableEntryActionParameter;
import org.apache.isis.core.runtime.system.context.IsisContext;
import org.apache.isis.core.runtime.system.transaction.MessageBroker;
import org.apache.isis.viewer.html.component.Page;
import org.apache.isis.viewer.html.context.Context;
public final class MethodTask extends Task {
private final ObjectAction action;
protected MethodTask(final Context context, final ObjectAdapter target, final ObjectAction action) {
super(context, action.getName(), action.getDescription(), target, action.getParameterCount());
this.action = action;
final List<ObjectActionParameter> parameters = action.getParameters();
final int len = parameters.size();
for (int i = 0; i < len; i++) {
names[i] = parameters.get(i).getName();
descriptions[i] = parameters.get(i).getDescription();
fieldSpecifications[i] = parameters.get(i).getSpecification();
optional[i] = parameters.get(i).isOptional();
if (parameters.get(i).getSpecification().isParseable()) {
final ParseableEntryActionParameter valueParameter = (ParseableEntryActionParameter) parameters.get(i);
noLines[i] = valueParameter.getNoLines();
wraps[i] = valueParameter.canWrap();
maxLength[i] = valueParameter.getMaximumLength();
typicalLength[i] = valueParameter.getTypicalLineLength();
}
}
// String[] names = action.getParameterNames();
// String[] descriptions = action.getParameterDescriptions();
// ObjectSpecification[] types = action.getParameterTypes();
final ObjectAdapter[] defaultParameterValues = action.getDefaults(target);
// boolean[] optional = action.getOptionalParameters();
for (int i = 0; i < names.length; i++) {
// this.names[i] = names[i];
// this.descriptions[i] = descriptions[i];
// this.fieldSpecifications[i] = types[i];
// this.optional[i] = optional[i];
if (defaultParameterValues[i] == null) {
// TODO: review; this isn't sufficient, because could provide an invalid value for a reference type, I think?
if (action.isContributed() && parameters.get(i).isObject()) {
initialState[i] = target;
} else {
initialState[i] = null;
}
} else {
initialState[i] = defaultParameterValues[i];
}
/*
* noLines[i] = action.getParameterNoLines()[i]; wraps[i] =
* action.canParametersWrap()[i]; maxLength[i] =
* action.getParameterMaxLengths()[i]; typicalLength[i] =
* action.getParameterTypicalLengths()[i];
*/
}
}
@Override
public void checkForValidity(final Context context) {
final ObjectAdapter[] parameters = getEntries(context);
final ObjectAdapter target = getTarget(context);
final Consent consent = action.isProposedArgumentSetValid(target, parameters);
error = consent.getReason();
}
@Override
public ObjectAdapter completeTask(final Context context, final Page page) {
final ObjectAdapter[] parameters = getEntries(context);
final ObjectAdapter target = getTarget(context);
final ObjectAdapter result = action.execute(target, parameters);
final MessageBroker broker = IsisContext.getMessageBroker();
final List<String> messages = broker.getMessages();
final List<String> warnings = broker.getWarnings();
context.setMessagesAndWarnings(messages, warnings);
return result;
}
@Override
public void debug(final DebugBuilder debug) {
debug.appendln("action: " + action);
super.debug(debug);
}
@Override
protected ObjectAdapter[][] getOptions(final Context context, final int from, final int len) {
final ObjectAdapter[][] allOptions = action.getChoices(getTarget(context));
final ObjectAdapter[][] options = new ObjectAdapter[len][];
for (int i = from, j = 0; j < len; i++, j++) {
options[j] = allOptions[i];
}
return options;
}
public boolean collectParameters() {
// TODO use new promptForParameters method instead of all this
final int expectedNoParameters = action.isContributed() ? 1 : 0;
return action.getParameterCount() == expectedNoParameters;
}
}