org.uiautomation.ios.wkrdp.internal.DefaultMessageHandler.java Source code

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Here is the source code for org.uiautomation.ios.wkrdp.internal.DefaultMessageHandler.java

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/*
 * Copyright 2012 ios-driver committers.
 * 
 * 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.uiautomation.ios.wkrdp.internal;

import org.json.JSONObject;
import org.openqa.selenium.TimeoutException;
import org.uiautomation.ios.wkrdp.MessageHandler;
import org.uiautomation.ios.wkrdp.MessageListener;
import org.uiautomation.ios.wkrdp.ResponseFinder;
import org.uiautomation.ios.wkrdp.ResponseFinderList;
import org.uiautomation.ios.wkrdp.message.ApplicationDataMessage;
import org.uiautomation.ios.wkrdp.message.IOSMessage;
import org.uiautomation.ios.wkrdp.message.MessageFactory;

import java.util.*;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.logging.Logger;

public class DefaultMessageHandler implements MessageHandler {

    private final static long timeoutInMs = 5000;
    private final List<MessageListener> listeners = new CopyOnWriteArrayList<MessageListener>();
    private Set<Thread> threads = new HashSet<Thread>();
    private boolean stopped;
    private static final Logger log = Logger.getLogger(DefaultMessageHandler.class.getName());
    private List<ResponseFinder> extraFinders = new ArrayList<ResponseFinder>();
    private final MessageFactory factory = new MessageFactory();
    private final DefaultWebKitResponseFinder defaultFinder = new DefaultWebKitResponseFinder(timeoutInMs);

    public DefaultMessageHandler(MessageListener listener, ResponseFinder... finders) {
        listeners.add(listener);

        Collections.addAll(this.extraFinders, finders);
    }

    private static int threadCount;

    @Override
    public synchronized void handle(final String msg) {
        if (stopped) {
            throw new IllegalStateException("stopped");
        }

        Thread t = new Thread("DefaultMessageHandler-" + ++threadCount) {
            @Override
            public void run() {
                process(msg);
                threads.remove(this);
            }
        };
        threads.add(t);
        t.start();
    }

    private void process(String rawMessage) {
        IOSMessage message = factory.create(rawMessage);

        for (MessageListener l : listeners) {
            l.onMessage(message);
        }

        if (message instanceof ApplicationDataMessage) {
            JSONObject content = ((ApplicationDataMessage) message).getMessage();
            if ((content.optInt("id", -1) != -1)) {
                defaultFinder.addResponse(content);
            }
        }
    }

    @Override
    public JSONObject getResponse(int id) throws TimeoutException {
        // there can be 2 things happening here.
        // 1) the response is received.
        // 2) the response is never received because there is an alert.

        // ResponseFinder.
        // startSearch
        // interruptSearch
        // waitForResult

        long start = System.currentTimeMillis();

        List<ResponseFinder> finders = new ArrayList<ResponseFinder>();
        finders.add(defaultFinder);
        finders.addAll(extraFinders);

        ResponseFinderList all = new ResponseFinderList(finders, timeoutInMs);
        try {
            JSONObject res = all.findResponse(id);
            log.fine("response " + id + " , " + (System.currentTimeMillis() - start) + "ms. " + res.toString());

            return res;
        } catch (RuntimeException e) {
            throw e;
        }
    }

    @Override
    public void addListener(MessageListener listener) {
        listeners.add(listener);
    }

    @Override
    public synchronized void stop() {
        stopped = true;
        for (Thread t : threads) {
            t.interrupt();
        }
    }

}