mq5.0-source.main.mq-ums.src.main.java.com.sun.messaging.ums.readonly.DefaultReadOnlyService Maven / Gradle / Ivy
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package com.sun.messaging.ums.readonly;
import com.sun.messaging.ums.common.Constants;
import com.sun.messaging.ums.service.UMSServiceException;
import com.sun.messaging.ums.service.UMSServiceImpl;
import java.util.Properties;
import java.util.logging.Level;
/**
*
* @author chiaming
*/
public class DefaultReadOnlyService implements ReadOnlyService {
public static final String REQUEST_URL = "requestURL";
public static final String SERVICE = "service";
public static final String JMSSERVICE = "JMSService";
//this is the default place to add a new readonly service
public static final String BASE = "com.sun.messaging.ums.readonly.impl.";
private Properties initParams = null;
/**
* initialize with the servlet init params.
* @param props
*/
public void init(Properties initParams) {
this.initParams = initParams;
}
/**
* A request message contains message properties and message body.
*
* The message body is the http request message body.
*
* The request message properties contains key/value pair of the http request.
* Each key/value pair of the requestProperties is obtained from
* the request url query string.
*
* The request message properties contains at least the following none
* empty properties.
*
* 1. "service" property.
* 2. "requestURL" property.
*
* The requestURL contains the URL the client used to make the request.
* The URL contains a protocol, server name, port number, and server path,
* but it does not include query string parameters.
*
* Query string is parsed into key/value pair in the requestProperties
* parameter.
*
* A new readonly service can be created in the ./impl package, with the
* service name as its class name:
*
* com.sun.messaging.ums.readonly.impl.service
*
* For example,
*
* http://localhost:8080/ums/simple?service=query1&destination=simpleQ&domain=queue
*
* would result in the following object instantiation.
*
* com.sun.messaging.ums.readonly.impl.query1
*
*
* @param request
* @return The service implementation must construct a proper formatted
* java string object and return as the request response.
*/
public ReadOnlyResponseMessage request (ReadOnlyRequestMessage request) {
ReadOnlyResponseMessage resp = null;
try {
//String svr = getSimpleRequestProperty (Constants.SERVICE_NAME, requestProperties);
String svr = request.getMessageProperty(Constants.SERVICE_NAME);
String cname = BASE + svr;
String requestURL = request.getMessageProperty(this.REQUEST_URL);
UMSServiceImpl.logger.info ("Invoking class, name=" + cname + ", requestURL=" + requestURL );
ReadOnlyService ros = (ReadOnlyService) Class.forName(cname).newInstance();
ros.init(initParams);
resp = ros.request(request);
} catch (Exception e) {
UMSServiceImpl.logger.log(Level.WARNING, e.getMessage(), e);
throw new UMSServiceException (e);
}
return resp;
}
}