/*
 * Copyright 2011 the original author or authors.
 *
 * 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 org.gradle.messaging.remote.internal;

import org.gradle.messaging.remote.Address;
import org.gradle.messaging.serialize.ObjectReader;
import org.gradle.messaging.serialize.ObjectWriter;

import java.io.InputStream;
import java.io.OutputStream;

public class DefaultMessageSerializer<T> implements MessageSerializer<T> {
    private final ClassLoader classLoader;

    public DefaultMessageSerializer(ClassLoader classLoader) {
        this.classLoader = classLoader;
    }

    public ObjectReader<T> newReader(InputStream inputStream, Address localAddress, Address remoteAddress) {
        return new MessageReader<T>(inputStream, classLoader);
    }

    public ObjectWriter<T> newWriter(OutputStream outputStream) {
        return new MessageWriter<T>(outputStream);
    }

    private static class MessageReader<T> implements ObjectReader<T> {
        private final InputStream inputStream;
        private final ClassLoader classLoader;

        public MessageReader(InputStream inputStream, ClassLoader classLoader) {
            this.inputStream = inputStream;
            this.classLoader = classLoader;
        }

        public T read() throws Exception {
            return (T) Message.receive(inputStream, classLoader);
        }
    }

    private static class MessageWriter<T> implements ObjectWriter<T> {
        private final OutputStream outputStream;

        public MessageWriter(OutputStream outputStream) {
            this.outputStream = outputStream;
        }

        public void write(T value) throws Exception {
            Message.send(value, outputStream);
        }
    }
}
