com.moss.jaxwslite.ServiceFactory.java Source code

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Here is the source code for com.moss.jaxwslite.ServiceFactory.java

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/**
 * Copyright (C) 2013, Moss Computing Inc.
 *
 * This file is part of jaxws-lite.
 *
 * jaxws-lite is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * jaxws-lite is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with jaxws-lite; see the file COPYING.  If not, write to the
 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 *
 * Linking this library statically or dynamically with other modules is
 * making a combined work based on this library.  Thus, the terms and
 * conditions of the GNU General Public License cover the whole
 * combination.
 *
 * As a special exception, the copyright holders of this library give you
 * permission to link this library with independent modules to produce an
 * executable, regardless of the license terms of these independent
 * modules, and to copy and distribute the resulting executable under
 * terms of your choice, provided that you also meet, for each linked
 * independent module, the terms and conditions of the license of that
 * module.  An independent module is a module which is not derived from
 * or based on this library.  If you modify this library, you may extend
 * this exception to your version of the library, but you are not
 * obligated to do so.  If you do not wish to do so, delete this
 * exception statement from your version.
 */
package com.moss.jaxwslite;

import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;

import javax.xml.namespace.QName;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpConnectionManager;
import org.apache.commons.httpclient.MultiThreadedHttpConnectionManager;
import org.apache.commons.httpclient.params.HttpConnectionManagerParams;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class ServiceFactory {

    private static final ServiceFactory defaultFactory = new ServiceFactory();

    public static ServiceFactory defaultInstance() {
        return defaultFactory;
    }

    public static <T> T createDefault(String url, String namespace, Class<T> iface) {

        URL u;
        try {
            u = new URL(url);
        } catch (MalformedURLException ex) {
            throw new RuntimeException(ex);
        }

        return defaultFactory.create(u, namespace, iface);
    }

    public static <T> T createDefault(String url, QName qname, Class<T> iface) {
        try {
            return defaultFactory.create(new URL(url), qname.getNamespaceURI(), iface);
        } catch (MalformedURLException e) {
            throw new RuntimeException(e);
        }
    }

    public static <T> T createDefault(URL url, QName qname, Class<T> iface) {
        return defaultFactory.create(url, qname.getNamespaceURI(), iface);
    }

    public static <T> T createDefault(URL url, String namespace, Class<T> iface) {
        return defaultFactory.create(url, namespace, iface);
    }

    private final Log log = LogFactory.getLog(getClass());
    private final HttpClient client;
    private final Map<Class<?>, ServiceType> typesCache = new HashMap<Class<?>, ServiceType>();
    private final Map<String, Service> servicesCache = new HashMap<String, Service>();

    public ServiceFactory() {

        HttpConnectionManager connectionManager = new MultiThreadedHttpConnectionManager();
        client = new HttpClient(connectionManager);

        setConnectionTimeout(30000);
    }

    public synchronized void setConnectionTimeout(int timeout) {

        HttpConnectionManager manager = client.getHttpConnectionManager();
        HttpConnectionManagerParams p = manager.getParams();

        p.setConnectionTimeout(timeout);

        manager.setParams(p);
    }

    @SuppressWarnings("unchecked")
    public synchronized <T> T create(URL url, String namespace, Class<T> iface) {
        try {
            String key = url.toString();

            Service service = servicesCache.get(key);

            if (service != null) {

                T proxy = (T) service.proxy();

                if (log.isDebugEnabled()) {
                    log.debug("Re-using service resources: " + key + " -> proxy(" + proxy + ")");
                }

                return (T) service.proxy();
            } else {

                ServiceType serviceType = typesCache.get(iface);

                if (serviceType != null) {

                    if (log.isDebugEnabled()) {
                        log.debug("Initializing service resources: " + key);
                    }

                    service = new Service(client, key, serviceType);
                    servicesCache.put(key, service);

                    return (T) service.proxy();
                } else {

                    if (log.isDebugEnabled()) {
                        log.debug("Initializing service type resources: " + iface.getName());
                    }

                    serviceType = new ServiceType(iface, namespace);
                    typesCache.put(iface, serviceType);

                    if (log.isDebugEnabled()) {
                        log.debug("Initializing service resources: " + url);
                    }

                    service = new Service(client, key, serviceType);
                    servicesCache.put(key, service);

                    return (T) service.proxy();
                }
            }
        } catch (Exception ex) {
            throw new RuntimeException(ex);
        }
    }

    public synchronized void initType(String namespace, Class<?> iface) {
        try {
            ServiceType serviceType = typesCache.get(iface);

            if (serviceType == null) {

                if (log.isDebugEnabled()) {
                    log.debug("Initializing service type resources: " + iface.getName());
                }

                serviceType = new ServiceType(iface, namespace);
                typesCache.put(iface, serviceType);
            }
        } catch (Exception ex) {
            throw new RuntimeException(ex);
        }
    }
}