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/*
* 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.tuscany.sca.binding.erlang.impl.types;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;
import com.ericsson.otp.erlang.OtpErlangObject;
import com.ericsson.otp.erlang.OtpErlangTuple;
/**
* @version $Rev$ $Date$
*/
public class TupleTypeHelper implements TypeHelper {
public OtpErlangObject toErlang(Object object) {
Class<?> forClass = object.getClass();
List<OtpErlangObject> tupleMembers = new ArrayList<OtpErlangObject>();
Field[] fields = forClass.getFields();
for (int i = 0; i < fields.length; i++) {
try {
OtpErlangObject member = TypeHelpersProxy.toErlang(fields[i]
.get(object), fields[i].getAnnotations());
tupleMembers.add(member);
} catch (IllegalArgumentException e) {
// no problem should occur here
} catch (IllegalAccessException e) {
// and here
}
}
OtpErlangObject result = new OtpErlangTuple(tupleMembers
.toArray(new OtpErlangObject[tupleMembers.size()]));
return result;
}
public Object toJava(OtpErlangObject object, Class<?> forClass)
throws Exception {
Object result = null;
OtpErlangTuple tuple = (OtpErlangTuple) object;
Field[] fields = forClass.getFields();
result = forClass.newInstance();
for (int i = 0; i < tuple.arity(); i++) {
OtpErlangObject tupleMember = tuple.elementAt(i);
Object javaMember = TypeHelpersProxy.toJava(tupleMember, fields[i]
.getType(), fields[i].getAnnotations());
fields[i].setAccessible(true);
fields[i].set(result, javaMember);
}
return result;
}
}
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