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package com.sun.enterprise.admin.wsmgmt.transform;
import com.sun.enterprise.admin.wsmgmt.config.spi.Constants;
import com.sun.enterprise.admin.wsmgmt.config.spi.TransformationRule;
import com.sun.enterprise.admin.wsmgmt.filter.spi.Filter;
import com.sun.enterprise.admin.wsmgmt.filter.spi.FilterContext;
import com.sun.enterprise.admin.wsmgmt.config.spi.WebServiceConfig;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import java.util.concurrent.locks.Lock;
import java.util.logging.Logger;
import java.util.logging.Level;
import com.sun.logging.LogDomains;
import com.sun.enterprise.util.i18n.StringManager;
/**
* Filter that can implement XSLT transformations.
*/
public class TransformFilter implements Filter {
/**
* Public Constructor.
*
* @param appId name of the application
* @param endpoint end point name for which stats are collected
*/
public TransformFilter(String appId, String endpoint) {
_applicationId = appId;
_endpointId = endpoint;
_rwl = new ReentrantReadWriteLock();
_readLock = _rwl.readLock();
_writeLock = _rwl.writeLock();
}
/**
* Public Constructor.
*
* @param appId name of the application
* @param endpoint end point name for which stats are collected
*/
public TransformFilter(String appId, WebServiceConfig wsc)
throws TransformException {
_applicationId = appId;
_endpointId = wsc.getName();
TransformationRule[] reqRules = wsc.getRequestTransformationRule();
if ( reqRules != null) {
reqChain = new FilterChain(reqRules, false);
//reqChain.addFilter(reqRules, false);
} else {
reqChain = null;
}
TransformationRule[] resRules = wsc.getResponseTransformationRule();
if (resRules != null) {
resChain = new FilterChain(resRules, true);
//resChain.addFilter(resRules, true);
} else {
resChain = null;
}
_rwl = new ReentrantReadWriteLock();
_readLock = _rwl.readLock();
_writeLock = _rwl.writeLock();
}
// XXX optimize these resetXXXChain, rather than creating the new chain
// modify the existing RequestChain.
public void resetRequestChain(TransformationRule[] tRules) throws
TransformException {
_writeLock.lock();
try {
reqChain = new FilterChain(tRules, false);
} finally {
_writeLock.unlock();
}
}
public void resetResponseChain(TransformationRule[] tRules) throws
TransformException {
_writeLock.lock();
try {
resChain = new FilterChain(tRules, true);
} finally {
_writeLock.unlock();
}
}
/**
* Returns the unique name for this filter
*/
public String getName() {
return (NAME_PREFIX + _applicationId + DELIM + _endpointId);
}
/**
* Returns the unique name for this filter
*/
static public String getName(String appId, WebServiceConfig wsc) {
return (NAME_PREFIX + appId + DELIM + wsc.getName());
}
/**
* Invoke the filter.
*
* @param stage stage of the execution
* @param endpoint name of the endpoint
* @param context filter context
*/
public void process(String stage, String endpoint, FilterContext context) {
_readLock.lock();
try {
// SOAP request
if ( stage.equals(Filter.PROCESS_REQUEST) ) {
// optmize this XXX
if ( reqChain != null) {
reqChain.process(context);
}
// SOAP response
} else if ( stage.equals(Filter.PROCESS_RESPONSE) ) {
if ( resChain != null) {
resChain.process(context);
}
}
} catch(Exception e) {
// log a warning
e.printStackTrace();
String msg = _stringMgr.getString("transform_failed", endpoint);
_logger.log(Level.INFO, msg, e.getMessage());
} finally {
_readLock.unlock();
}
}
// -- PRIVATE - VARIABLES -------------------------
private String _applicationId = null;
private String _endpointId = null;
private static final String DELIM = "#";
private static final String NAME_PREFIX = "TRANSFORMFILTER_";
private FilterChain reqChain = null;
private FilterChain resChain= null;
private ReentrantReadWriteLock _rwl = null;
private Lock _readLock = null;
private Lock _writeLock = null;
private static final Logger _logger =
Logger.getLogger(LogDomains.ADMIN_LOGGER);
private static final StringManager _stringMgr =
StringManager.getManager(TransformFilter.class);
}
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