/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* 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.apache.cocoon.generation;
import org.apache.avalon.framework.parameters.Parameters;
import org.apache.avalon.framework.service.ServiceException;
import org.apache.avalon.framework.service.ServiceManager;
import org.apache.cocoon.ProcessingException;
import org.apache.cocoon.components.profiler.EnvironmentInfo;
import org.apache.cocoon.components.profiler.Profiler;
import org.apache.cocoon.components.profiler.ProfilerResult;
import org.apache.cocoon.components.sax.XMLDeserializer;
import org.apache.cocoon.environment.ObjectModelHelper;
import org.apache.cocoon.environment.Request;
import org.apache.cocoon.environment.SourceResolver;
import org.apache.cocoon.xml.IncludeXMLConsumer;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.AttributesImpl;
import java.io.IOException;
import java.text.DateFormat;
import java.util.Collection;
import java.util.Date;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
/**
* Generates an XML representation of the current status of Profiler.
*
* @author <a href="mailto:vgritsenko@apache.org">Vadim Gritsenko</a>
* @author <a href="mailto:bruno@outerthought.org">Bruno Dumon</a>
* @author <a href="mailto:stephan@apache.org">Stephan Michels</a>
* @version CVS $Id: ProfilerGenerator.java,v 1.6 2004/03/05 13:02:20 bdelacretaz Exp $
*/
public class ProfilerGenerator extends ServiceableGenerator {
/**
* The XML PROFILER_NS for the output document.
*/
private static final String PROFILER_NS = "http://apache.org/cocoon/profiler/1.0";
private static final String PROFILERINFO_ELEMENT = "profilerinfo";
private static final String RESULTS_ELEMENT = "pipeline";
private static final String RESULT_ELEMENT = "result";
private static final String AVERAGERESULT_ELEMENT = "average";
private static final String ENVIROMENTINFO_ELEMENT = "environmentinfo";
private static final String REQUESTPARAMETERS_ELEMENT = "request-parameters";
private static final String REQUESTPARAMETER_ELEMENT = "parameter";
private static final String SESSIONATTRIBUTES_ELEMENT = "session-attributes";
private static final String SESSIONATTRIBUTE_ELEMENT = "attribute";
private static final String COMPONENT_ELEMENT = "component";
private static final String FRAGMENT_ELEMENT = "fragment";
private static final String PREFIX = "profiler";
private static final String PREFIX_COLON = "profiler:";
private Profiler profiler;
// the key identifying the ProfilerResult
private Long key = null;
// Index of the result of latest results
private int resultIndex = -1;
// Index of the componen of the latest results
private int componentIndex = -1;
// Indicates if the fragment only, and not the profiler metadata around it, should be generated
private boolean fragmentOnly;
/**
* Serviceable
*/
public void service(ServiceManager manager) throws ServiceException {
super.service(manager);
this.profiler = (Profiler) super.manager.lookup(Profiler.ROLE);
}
/**
* Setup of the profiler generator.
*/
public void setup(SourceResolver resolver, Map objectModel, String soure,
Parameters parameters)
throws ProcessingException, SAXException,
IOException {
super.setup(resolver, objectModel, source, parameters);
Request request = ObjectModelHelper.getRequest(objectModel);
if (request.getParameter("key")!=null) {
this.key = new Long(Long.parseLong(request.getParameter("key")));
} else {
this.key = null;
}
if ((request.getParameter("result")!=null) && (this.key!=null)) {
this.resultIndex = Integer.parseInt(request.getParameter("result"));
} else {
this.resultIndex = -1;
}
if ((request.getParameter("component")!=null) &&
(this.resultIndex!=-1)) {
this.componentIndex = Integer.parseInt(request.getParameter("component"));
} else {
this.componentIndex = -1;
}
if (request.getParameter("fragmentonly") != null && request.getParameter("fragmentonly").equals("true")) {
fragmentOnly = true;
} else {
fragmentOnly = false;
}
}
/**
* Disposable
*/
public void dispose() {
if (this.profiler!=null) {
super.manager.release(this.profiler);
this.profiler = null;
}
super.dispose();
}
/**
* Generate the status information in XML format.
* @throws SAXException
* when there is a problem creating the output SAX events.
*/
public void generate() throws SAXException {
// check if only the stored XML data is requested
if (fragmentOnly && key != null && resultIndex != -1 && componentIndex != -1) {
// find the fragment
Object fragment = null;
try {
ProfilerResult result = profiler.getResult(key);
fragment = result.getSAXFragments()[resultIndex][componentIndex];
} catch (Exception e) {
// fragment will be null
}
if (fragment != null) {
generateSAXFragment(fragment, false);
} else {
this.contentHandler.startDocument();
this.contentHandler.startPrefixMapping(PREFIX, PROFILER_NS);
this.contentHandler.startElement(PROFILER_NS, "fragment-error", PREFIX_COLON + "fragment-error", new AttributesImpl());
char[] message = "Fragment is not available.".toCharArray();
this.contentHandler.characters(message, 0, message.length);
this.contentHandler.endElement(PROFILER_NS, "fragment-error", PREFIX_COLON + "fragment-error");
this.contentHandler.endPrefixMapping(PREFIX);
this.contentHandler.endDocument();
}
} else {
// Start the document and set the PROFILER_NS.
this.contentHandler.startDocument();
this.contentHandler.startPrefixMapping(PREFIX, PROFILER_NS);
generateProfilerInfo();
// End the document.
this.contentHandler.endPrefixMapping(PREFIX);
this.contentHandler.endDocument();
}
}
/**
* Generate the main status document.
*/
private void generateProfilerInfo() throws SAXException {
// Root element.
// The current date and processingTime.
String dateTime = DateFormat.getDateTimeInstance().format(new Date());
AttributesImpl atts = new AttributesImpl();
atts.addAttribute("", "date", "date", "CDATA", dateTime);
this.contentHandler.startElement(PROFILER_NS, PROFILERINFO_ELEMENT,
PREFIX_COLON + PROFILERINFO_ELEMENT, atts);
Collection resultsKeys = profiler.getResultKeys();
for (Iterator i = resultsKeys.iterator(); i.hasNext(); ) {
Long key = (Long) i.next();
if ((this.key==null) || (this.key.equals(key))) {
generateResults(key, profiler.getResult(key));
}
}
// End root element.
this.contentHandler.endElement(PROFILER_NS, PROFILERINFO_ELEMENT,
PREFIX_COLON + PROFILERINFO_ELEMENT);
}
/**
*
*
* @param key
* @param result
*/
private void generateResults(Long key,
ProfilerResult result) throws SAXException {
AttributesImpl atts = new AttributesImpl();
int count = result.getCount();
String[] roles = result.getRoles(); // Roles of the components
String[] sources = result.getSources(); // Source of the components
EnvironmentInfo[] environmentInfos = result.getLatestEnvironmentInfos();
long[] totalTime = result.getTotalTime(); // Total time of the requests
long[][] setupTimes = result.getSetupTimes(); // Setup time of each component
long[][] processingTimes = result.getProcessingTimes(); // Processing time of each component
Object[][] fragments = result.getSAXFragments(); // SAX Fragments of each component
// Total time of all requests
long totalTimeSum = 0;
for (int i = 0; i<count; i++)
totalTimeSum += totalTime[i];
atts.addAttribute("", "uri", "uri", "CDATA", result.getURI());
atts.addAttribute("", "count", "count", "CDATA",
Integer.toString(result.getCount()));
atts.addAttribute("", "processingTime", "processingTime", "CDATA",
Long.toString(totalTimeSum));
atts.addAttribute("", "key", "key", "CDATA", key.toString());
this.contentHandler.startElement(PROFILER_NS, RESULTS_ELEMENT,
PREFIX_COLON + RESULTS_ELEMENT, atts);
atts.clear();
// Generate average result
if ((count>0) && (this.resultIndex==-1)) {
atts.addAttribute("", "time", "time", "CDATA",
Long.toString(totalTimeSum/count));
this.contentHandler.startElement(PROFILER_NS,
AVERAGERESULT_ELEMENT,
PREFIX_COLON + AVERAGERESULT_ELEMENT, atts);
atts.clear();
// Total time of each component for all requests
long[] totalTimeOfComponents = new long[roles.length];
for (int i = 0; i<roles.length; i++) {
totalTimeOfComponents[i] = 0;
for (int j = 0; j<count; j++) {
totalTimeOfComponents[i] += setupTimes[j][i]+
processingTimes[j][i];
}
}
for (int i = 0; i<roles.length; i++) {
atts.addAttribute("", "offset", "offset", "CDATA",
String.valueOf(i));
if (roles[i]!=null) {
atts.addAttribute("", "role", "role", "CDATA", roles[i]);
}
if (sources[i]!=null) {
atts.addAttribute("", "source", "source", "CDATA",
sources[i]);
}
atts.addAttribute("", "time", "time", "CDATA",
Long.toString(totalTimeOfComponents[i]/
count));
this.contentHandler.startElement(PROFILER_NS,
COMPONENT_ELEMENT,
PREFIX_COLON + COMPONENT_ELEMENT, atts);
atts.clear();
this.contentHandler.endElement(PROFILER_NS,
COMPONENT_ELEMENT,
PREFIX_COLON + COMPONENT_ELEMENT);
}
this.contentHandler.endElement(PROFILER_NS,
AVERAGERESULT_ELEMENT,
PREFIX_COLON + AVERAGERESULT_ELEMENT);
}
for (int j = 0; j<count; j++) {
if ((this.resultIndex==-1) || (this.resultIndex==j)) {
generateResult(j, roles, sources, environmentInfos[j],
totalTime[j], setupTimes[j],
processingTimes[j], fragments[j]);
}
}
this.contentHandler.endElement(PROFILER_NS, RESULTS_ELEMENT,
PREFIX_COLON + RESULTS_ELEMENT);
}
private void generateResult(int resultIndex, String[] roles,
String[] sources,
EnvironmentInfo environmentInfo,
long totalTime, long[] setupTimes,
long[] processingTimes,
Object[] fragments) throws SAXException {
AttributesImpl atts = new AttributesImpl();
atts.addAttribute("", "time", "time", "CDATA",
Long.toString(totalTime));
atts.addAttribute("", "index", "index", "CDATA",
String.valueOf(resultIndex));
this.contentHandler.startElement(PROFILER_NS, RESULT_ELEMENT,
PREFIX_COLON + RESULT_ELEMENT, atts);
atts.clear();
if (this.resultIndex!=-1) {
generateEnvironmentInfo(environmentInfo);
}
for (int i = 0; i<roles.length; i++) {
generateComponent(i, roles[i], sources[i], setupTimes[i],
processingTimes[i], fragments[i]);
}
this.contentHandler.endElement(PROFILER_NS, RESULT_ELEMENT,
PREFIX_COLON + RESULT_ELEMENT);
}
private void generateComponent(int componentIndex, String role,
String source, long setupTime,
long processingTime,
Object fragment) throws SAXException {
AttributesImpl atts = new AttributesImpl();
atts.addAttribute("", "index", "index", "CDATA",
String.valueOf(componentIndex));
if (role!=null) {
atts.addAttribute("", "role", "role", "CDATA", role);
}
if (source!=null) {
atts.addAttribute("", "source", "source", "CDATA", source);
}
atts.addAttribute("", "setup", "setup", "CDATA",
Long.toString(setupTime));
atts.addAttribute("", "processing", "processing", "CDATA",
Long.toString(processingTime));
atts.addAttribute("", "time", "time", "CDATA",
Long.toString(setupTime+processingTime));
this.contentHandler.startElement(PROFILER_NS, COMPONENT_ELEMENT,
PREFIX_COLON + COMPONENT_ELEMENT, atts);
atts.clear();
if (this.componentIndex==componentIndex) {
this.contentHandler.startElement(PROFILER_NS, FRAGMENT_ELEMENT,
PREFIX_COLON + FRAGMENT_ELEMENT,
new AttributesImpl());
generateSAXFragment(fragment, true);
this.contentHandler.endElement(PROFILER_NS, FRAGMENT_ELEMENT,
PREFIX_COLON + FRAGMENT_ELEMENT);
}
this.contentHandler.endElement(PROFILER_NS, COMPONENT_ELEMENT,
PREFIX_COLON + COMPONENT_ELEMENT);
}
private void generateEnvironmentInfo(EnvironmentInfo environmentInfo)
throws SAXException {
this.contentHandler.startElement(PROFILER_NS, ENVIROMENTINFO_ELEMENT,
PREFIX_COLON + ENVIROMENTINFO_ELEMENT,
new AttributesImpl());
if (environmentInfo!=null) {
// Generate SAX events for the request parameters
this.contentHandler.startElement(PROFILER_NS,
REQUESTPARAMETERS_ELEMENT,
PREFIX_COLON + REQUESTPARAMETERS_ELEMENT,
new AttributesImpl());
Map requestParameters = environmentInfo.getRequestParameters();
Set requestParamEntries = requestParameters.entrySet();
Iterator requestParamEntriesIt = requestParamEntries.iterator();
while (requestParamEntriesIt.hasNext()) {
AttributesImpl atts = new AttributesImpl();
Map.Entry entry = (Map.Entry) requestParamEntriesIt.next();
atts.addAttribute("", "name", "name", "CDATA",
(String) entry.getKey());
atts.addAttribute("", "value", "value", "CDATA",
(String) entry.getValue());
this.contentHandler.startElement(PROFILER_NS,
REQUESTPARAMETER_ELEMENT,
PREFIX_COLON + REQUESTPARAMETER_ELEMENT,
atts);
this.contentHandler.endElement(PROFILER_NS,
REQUESTPARAMETER_ELEMENT,
PREFIX_COLON + REQUESTPARAMETER_ELEMENT);
}
this.contentHandler.endElement(PROFILER_NS,
REQUESTPARAMETERS_ELEMENT,
PREFIX_COLON + REQUESTPARAMETERS_ELEMENT);
// Generate SAX events for the session attributes
this.contentHandler.startElement(PROFILER_NS,
SESSIONATTRIBUTES_ELEMENT,
PREFIX_COLON + SESSIONATTRIBUTES_ELEMENT,
new AttributesImpl());
Map sessionAttributes = environmentInfo.getSessionAttributes();
Set sessionAttrEntries = sessionAttributes.entrySet();
Iterator sessionAttrEntriesIt = sessionAttrEntries.iterator();
while (sessionAttrEntriesIt.hasNext()) {
AttributesImpl atts = new AttributesImpl();
Map.Entry entry = (Map.Entry) sessionAttrEntriesIt.next();
atts.addAttribute("", "name", "name", "CDATA",
(String) entry.getKey());
atts.addAttribute("", "value", "value", "CDATA",
(String) entry.getValue());
this.contentHandler.startElement(PROFILER_NS,
SESSIONATTRIBUTE_ELEMENT,
PREFIX_COLON + SESSIONATTRIBUTE_ELEMENT,
atts);
this.contentHandler.endElement(PROFILER_NS,
SESSIONATTRIBUTE_ELEMENT,
PREFIX_COLON + SESSIONATTRIBUTE_ELEMENT);
}
this.contentHandler.endElement(PROFILER_NS,
SESSIONATTRIBUTES_ELEMENT,
PREFIX_COLON + SESSIONATTRIBUTES_ELEMENT);
// And the rest
this.contentHandler.startElement(PROFILER_NS, "uri", PREFIX_COLON + "uri",
new AttributesImpl());
this.contentHandler.characters(environmentInfo.getURI().toCharArray(),
0, environmentInfo.getURI().length());
this.contentHandler.endElement(PROFILER_NS, "uri", PREFIX_COLON + "uri");
}
this.contentHandler.endElement(PROFILER_NS, ENVIROMENTINFO_ELEMENT,
PREFIX_COLON + ENVIROMENTINFO_ELEMENT);
}
public void generateSAXFragment(Object fragment, boolean embed) throws SAXException {
if (fragment!=null) {
XMLDeserializer deserializer = null;
try {
deserializer = (XMLDeserializer) this.manager.lookup(XMLDeserializer.ROLE);
if (embed)
deserializer.setConsumer(new IncludeXMLConsumer(this.xmlConsumer));
else
deserializer.setConsumer(this.xmlConsumer);
deserializer.deserialize(fragment);
} catch (ServiceException ce) {
getLogger().debug("Could not retrieve XMLDeserializer component",
ce);
throw new SAXException("Could not retrieve XMLDeserializer component",
ce);
} catch (Exception e) {
getLogger().debug("Could not serialize SAX fragment", e);
throw new SAXException("Could not serialize SAX fragment", e);
} finally {
if (deserializer!=null) {
this.manager.release(deserializer);
}
}
}
}
}