Package io.fabric8.dosgi.api

Source Code of io.fabric8.dosgi.api.ObjectSerializationStrategy

/**
*  Copyright 2005-2014 Red Hat, Inc.
*
*  Red Hat 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 io.fabric8.dosgi.api;

import io.fabric8.dosgi.util.ClassLoaderObjectInputStream;
import org.fusesource.hawtbuf.DataByteArrayInputStream;
import org.fusesource.hawtbuf.DataByteArrayOutputStream;

import java.io.IOException;
import java.io.ObjectOutputStream;

/**
* <p>
* </p>
*
*/
public class ObjectSerializationStrategy implements SerializationStrategy {
    public static final ObjectSerializationStrategy INSTANCE = new ObjectSerializationStrategy();

    public String name() {
        return "object";
    }

    public void encodeRequest(ClassLoader loader, Class<?>[] types, Object[] args, DataByteArrayOutputStream target) throws IOException {
        ObjectOutputStream oos = new ObjectOutputStream(target);
        oos.writeObject(args);
        oos.flush();
    }

    public void decodeResponse(ClassLoader loader, Class<?> type, DataByteArrayInputStream source, AsyncCallback result) throws IOException, ClassNotFoundException {
        ClassLoaderObjectInputStream ois = new ClassLoaderObjectInputStream(source);
        ois.setClassLoader(loader);
        Throwable error = (Throwable) ois.readObject();
        Object value = ois.readObject();
        if (error != null) {
            result.onFailure(error);
        } else {
            result.onSuccess(value);
        }
    }

    public void decodeRequest(ClassLoader loader, Class<?>[] types, DataByteArrayInputStream source, Object[] target) throws IOException, ClassNotFoundException {
        final ClassLoaderObjectInputStream ois = new ClassLoaderObjectInputStream(source);
        ois.setClassLoader(loader);
        final Object[] args = (Object[]) ois.readObject();
        if( args!=null ) {
            System.arraycopy(args, 0, target, 0, args.length);
        }
    }


    public void encodeResponse(ClassLoader loader, Class<?> type, Object value, Throwable error, DataByteArrayOutputStream target) throws IOException, ClassNotFoundException {
        ObjectOutputStream oos = new ObjectOutputStream(target);
        oos.writeObject(error);
        oos.writeObject(value);
        oos.flush();
    }


}
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