/*
* The MIT License
*
* Copyright (c) 2010, InfraDNA, Inc.
* Copyright (c) 2011, Richard Mortimer
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package hudson.util.xstream;
import com.google.common.collect.ImmutableList;
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.converters.UnmarshallingContext;
import com.thoughtworks.xstream.converters.collections.CollectionConverter;
import com.thoughtworks.xstream.converters.reflection.ReflectionProvider;
import com.thoughtworks.xstream.converters.reflection.SerializableConverter;
import com.thoughtworks.xstream.io.HierarchicalStreamReader;
import com.thoughtworks.xstream.mapper.CannotResolveClassException;
import com.thoughtworks.xstream.mapper.Mapper;
import hudson.util.RobustReflectionConverter;
import java.util.ArrayList;
import java.util.List;
/**
* {@link ImmutableList} should convert like a list, instead of via serialization.
*
* @author Kohsuke Kawaguchi
* @author Richard Mortimer
*/
public class ImmutableListConverter extends CollectionConverter {
private final SerializableConverter sc;
public ImmutableListConverter(XStream xs) {
this(xs.getMapper(),xs.getReflectionProvider());
}
public ImmutableListConverter(Mapper mapper, ReflectionProvider reflectionProvider) {
super(mapper);
sc = new SerializableConverter(mapper,reflectionProvider);
}
@Override
public boolean canConvert(Class type) {
return ImmutableList.class.isAssignableFrom(type);
}
@Override
public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
String resolvesTo = reader.getAttribute("resolves-to");
if ("com.google.common.collect.ImmutableList$SerializedForm".equals(resolvesTo)) {
// Skip into the elements element. This has the real children.
List items = new ArrayList();
if (reader.hasMoreChildren()) {
reader.moveDown();
// read the individual items from xml into a list
while (reader.hasMoreChildren()) {
reader.moveDown();
try {
Object item = readItem(reader, context, items);
items.add(item);
} catch (CannotResolveClassException e) {
RobustReflectionConverter.addErrorInContext(context, e);
} catch (LinkageError e) {
RobustReflectionConverter.addErrorInContext(context, e);
}
reader.moveUp();
}
// move back up past the elements element.
reader.moveUp();
}
return ImmutableList.copyOf(items);
} else {
return ImmutableList.copyOf((List)super.unmarshal(reader, context));
}
}
@Override
protected Object createCollection(Class type) {
return new ArrayList();
}
}