/*
 * 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.ode.jacob.oo;

import java.lang.reflect.Method;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.Set;


@SuppressWarnings("serial")
public abstract class ReceiveProcess extends ChannelListener {
    private transient Set<Method> _implementedMethods;
    private transient Channel channel;
    private Channel receiver;
    
    public ReceiveProcess() {        
    }

    public Channel getChannel() {
        return channel;
    }

    public ReceiveProcess setChannel(Channel channel) {
        this.channel = channel;
        return this;
    }

    public Channel getReceiver() {
        return receiver;
    }

    public ReceiveProcess setReceiver(Channel receiver) {
        this.receiver = receiver;
        return this;
    }

    public Set<Method> getImplementedMethods() {
        if (_implementedMethods == null) {
            Set<Method> implementedMethods = new LinkedHashSet<Method>();
            ClassUtil.getImplementedMethods(implementedMethods, receiver.getClass());
            _implementedMethods = Collections.unmodifiableSet(implementedMethods);
        }
        return _implementedMethods;
    }

    public String toString() {
        // TODO: needs improvement
        StringBuffer buf = new StringBuffer(getClass().getSimpleName());
        buf.append('{');
        for (Method m : getImplementedMethods()) {
            buf.append(m.getName());
            buf.append("()");
            buf.append(",");
        }
        buf.setLength(buf.length()-1);
        buf.append('}');
        return buf.toString();
    }
}