/*
* 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.display;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import org.apache.isis.applib.annotation.Where;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.spec.feature.ObjectAssociation;
import org.apache.isis.core.runtime.system.context.IsisContext;
import org.apache.isis.viewer.scimpi.dispatcher.AbstractElementProcessor;
import org.apache.isis.viewer.scimpi.dispatcher.ForbiddenException;
import org.apache.isis.viewer.scimpi.dispatcher.context.RequestContext.Scope;
import org.apache.isis.viewer.scimpi.dispatcher.processor.Request;
/**
* Element to include another file that will display an object.
*/
public class IncludeObject extends AbstractElementProcessor {
// REVIEW: should provide this rendering context, rather than hardcoding.
// the net effect currently is that class members annotated with
// @Hidden(where=Where.ANYWHERE) or @Disabled(where=Where.ANYWHERE) will indeed
// be hidden/disabled, but will be visible/enabled (perhaps incorrectly)
// for any other value for Where
private final Where where = Where.ANYWHERE;
@Override
public void process(final Request request) {
final String path = request.getOptionalProperty("file");
String id = request.getOptionalProperty(OBJECT);
final String fieldName = request.getOptionalProperty(FIELD);
ObjectAdapter object = request.getContext().getMappedObjectOrResult(id);
if (fieldName != null) {
final ObjectAssociation field = object.getSpecification().getAssociation(fieldName);
if (field.isVisible(IsisContext.getAuthenticationSession(), object, where).isVetoed()) {
throw new ForbiddenException(field, ForbiddenException.VISIBLE);
}
object = field.get(object);
id = request.getContext().mapObject(object, Scope.REQUEST);
}
if (object != null) {
IsisContext.getPersistenceSession().resolveImmediately(object);
request.getContext().addVariable("_object", id, Scope.REQUEST);
importFile(request, path);
}
request.closeEmpty();
}
private static void importFile(final Request request, final String path) {
// TODO load in file via HtmlFileParser
final File file = new File(path);
BufferedReader reader = null;
try {
if (file.exists()) {
reader = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
String line;
while ((line = reader.readLine()) != null) {
request.appendHtml(line);
}
} else {
request.appendHtml("<P classs=\"error\">File " + path + " not found to import</P>");
}
} catch (final FileNotFoundException e) {
throw new RuntimeException(e);
} catch (final IOException e) {
throw new RuntimeException(e);
} finally {
if (reader != null) {
try {
reader.close();
} catch (final IOException e) {
throw new RuntimeException(e);
}
}
}
}
@Override
public String getName() {
return "include-object";
}
}