package act.data;
/*-
* #%L
* ACT Framework
* %%
* Copyright (C) 2014 - 2017 ActFramework
* %%
* Licensed 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.
* #L%
*/
import org.osgl.mvc.util.Binder;
import org.osgl.mvc.util.ParamValueProvider;
import org.osgl.storage.ISObject;
import org.osgl.util.IO;
import static act.data.annotation.ReadContent.ATTR_MERCY;
/**
* Read content as string from resource URL
*/
public class ContentStringBinder extends Binder<String> {
public static final ContentStringBinder INSTANCE = new ContentStringBinder();
@Override
public String resolve(String bean, String model, ParamValueProvider params) {
try {
ISObject sobj = SObjectBinder.INSTANCE.resolve(null, model, params);
return null == sobj ? fallBack(model, params) : IO.readContentAsString(sobj.asInputStream());
} catch (Exception e) {
return fallBack(model, params);
}
}
private String fallBack(String model, ParamValueProvider params) {
Boolean mercy = attribute(ATTR_MERCY);
if (null == mercy) {
mercy = false;
}
return mercy ? params.paramVal(model) : null;
}
}