/**
* Copyright 2010 CosmoCode GmbH
*
* 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.
*/
package de.cosmocode.palava.ipc.xml.rpc.adapters;
import java.io.Serializable;
import javax.xml.bind.JAXBElement;
import com.google.common.base.Preconditions;
import com.google.inject.Inject;
import com.google.inject.TypeLiteral;
import de.cosmocode.palava.ipc.xml.rpc.XmlRpc;
import de.cosmocode.palava.ipc.xml.rpc.generated.ObjectFactory;
import de.cosmocode.palava.ipc.xml.rpc.generated.Value;
/**
* A {@link Value} to {@link String} adapter.
*
* @since 1.0
* @author Willi Schoenborn
*/
final class StringAdapter implements Adapter<Value, String> {
static final TypeLiteral<Adapter<Value, String>> LITERAL =
new TypeLiteral<Adapter<Value, String>>() { };
private final ObjectFactory factory;
@Inject
public StringAdapter(@XmlRpc ObjectFactory factory) {
this.factory = Preconditions.checkNotNull(factory, "Factory");
}
@Override
public String decode(Value input) {
Preconditions.checkNotNull(input, "Input");
final Serializable first = input.getContent().get(0);
if (first instanceof String) {
return first.toString();
} else {
return JAXBElement.class.cast(first).getValue().toString();
}
}
@Override
public Value encode(String input) {
Preconditions.checkNotNull(input, "Input");
final Value value = factory.createValue();
value.getContent().add(factory.createValueString(input));
return value;
}
}