org.vertx.spring.examples.AbstractHandlerBean.java Source code

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Here is the source code for org.vertx.spring.examples.AbstractHandlerBean.java

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/*
 * Copyright 2013 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.vertx.spring.examples;

import org.springframework.context.SmartLifecycle;
import org.vertx.java.core.AsyncResult;
import org.vertx.java.core.AsyncResultHandler;
import org.vertx.java.core.Handler;
import org.vertx.java.core.eventbus.EventBus;
import org.vertx.java.core.eventbus.Message;

/**
 * @author swilliams
 *
 */
public abstract class AbstractHandlerBean<T> implements SmartLifecycle, Handler<Message<T>> {

    private final EventBus eventBus;

    private volatile boolean running = false;

    private boolean autoStartup = true;

    private int phase;

    private String address;

    private boolean addressFixed = false;

    public AbstractHandlerBean(EventBus eventBus) {
        this.eventBus = eventBus;
        this.address = this.getClass().getName().toLowerCase();
    }

    /* (non-Javadoc)
     * @see org.springframework.context.Lifecycle#start()
     */
    @Override
    public void start() {
        this.addressFixed = true;
        eventBus.registerHandler(getAddress(), this, new AsyncResultHandler<Void>() {
            @Override
            public void handle(AsyncResult<Void> event) {
                AbstractHandlerBean.this.running = true;
            }
        });
    }

    /* (non-Javadoc)
     * @see org.springframework.context.Lifecycle#stop()
     */
    @Override
    public void stop() {
        // TODO Auto-generated method stub
    }

    /* (non-Javadoc)
     * @see org.springframework.context.SmartLifecycle#stop(java.lang.Runnable)
     */
    @Override
    public void stop(final Runnable callback) {
        eventBus.unregisterHandler(getAddress(), this, new AsyncResultHandler<Void>() {
            @Override
            public void handle(AsyncResult<Void> event) {
                callback.run();
            }
        });
    }

    /* (non-Javadoc)
     * @see org.springframework.context.SmartLifecycle#isAutoStartup()
     */
    @Override
    public boolean isAutoStartup() {
        return autoStartup;
    }

    /* (non-Javadoc)
     * @see org.springframework.context.Lifecycle#isRunning()
     */
    @Override
    public boolean isRunning() {
        return running;
    }

    /* (non-Javadoc)
     * @see org.springframework.context.Phased#getPhase()
     */
    @Override
    public int getPhase() {
        return phase;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        if (this.addressFixed) {
            throw new IllegalStateException("Can't set the address after startup");
        }
        this.address = address;
    }

    public void setAutoStartup(boolean autoStartup) {
        this.autoStartup = autoStartup;
    }

    public void setPhase(int phase) {
        this.phase = phase;
    }

}