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package org.glassfish.jersey.server.internal.monitoring;
import java.util.Collections;
import java.util.Comparator;
import java.util.Map;
import java.util.SortedMap;
import org.glassfish.jersey.server.model.Resource;
import org.glassfish.jersey.server.model.ResourceMethod;
import org.glassfish.jersey.server.model.ResourceModel;
import org.glassfish.jersey.server.monitoring.ApplicationStatistics;
import org.glassfish.jersey.server.monitoring.ExceptionMapperStatistics;
import org.glassfish.jersey.server.monitoring.ExecutionStatistics;
import org.glassfish.jersey.server.monitoring.MonitoringStatistics;
import org.glassfish.jersey.server.monitoring.ResourceStatistics;
import jersey.repackaged.com.google.common.base.Function;
import jersey.repackaged.com.google.common.collect.Maps;
/**
* Monitoring statistics implementation.
*
* @author Miroslav Fuksa (miroslav.fuksa at oracle.com)
*/
class MonitoringStatisticsImpl implements MonitoringStatistics {
/**
* Builder of monitoring statistics.
*/
static class Builder {
private ExecutionStatisticsImpl.Builder requestStatisticsBuilder;
private final ResponseStatisticsImpl.Builder responseStatisticsBuilder;
private ApplicationStatisticsImpl applicationStatisticsImpl;
private ExceptionMapperStatisticsImpl.Builder exceptionMapperStatisticsBuilder;
private SortedMap uriStatistics = Maps.newTreeMap();
private SortedMap, ResourceStatisticsImpl.Builder> resourceClassStatistics
= Maps.newTreeMap(new Comparator>() {
@Override
public int compare(Class o1, Class o2) {
return o1.getName().compareTo(o2.getName());
}
});
/**
* Create a new builder.
*/
Builder() {
this.requestStatisticsBuilder = new ExecutionStatisticsImpl.Builder();
this.responseStatisticsBuilder = new ResponseStatisticsImpl.Builder();
this.exceptionMapperStatisticsBuilder = new ExceptionMapperStatisticsImpl.Builder();
}
/**
* Create a new builder and initialize it from resource model.
* @param resourceModel resource model.
*/
public Builder(ResourceModel resourceModel) {
this();
for (Resource resource : resourceModel.getRootResources()) {
processResource(resource, "");
for (Resource child : resource.getChildResources()) {
processResource(child, "/" + resource.getPath());
}
}
}
private void processResource(Resource resource, String pathPrefix) {
this.uriStatistics.put(pathPrefix + "/" + resource.getPath(), new ResourceStatisticsImpl.Builder(resource));
for (ResourceMethod resourceMethod : resource.getResourceMethods()) {
ResourceStatisticsImpl.Builder builder = getOrCreateResourceBuilder(resourceMethod);
builder.addMethod(resourceMethod);
}
}
private ResourceStatisticsImpl.Builder getOrCreateResourceBuilder(ResourceMethod resourceMethod) {
final Class clazz = resourceMethod.getInvocable().getHandler().getHandlerClass();
ResourceStatisticsImpl.Builder builder = resourceClassStatistics.get(clazz);
if (builder == null) {
builder = new ResourceStatisticsImpl.Builder();
resourceClassStatistics.put(clazz, builder);
}
return builder;
}
/**
* Get the request statistics builder.
* @return Builder of internal request statistics.
*/
ExecutionStatisticsImpl.Builder getRequestStatisticsBuilder() {
return requestStatisticsBuilder;
}
/**
* Get the exception mapper statistics builder.
* @return Builder of internal exception mapper statistics.
*/
ExceptionMapperStatisticsImpl.Builder getExceptionMapperStatisticsBuilder() {
return exceptionMapperStatisticsBuilder;
}
/**
* Add execution of a resource method.
*
* @param uri String uri which was executed.
* @param resourceMethod Resource method.
* @param methodTime Time spent on execution of resource method itself (Unix timestamp format).
* @param methodDuration Time of execution of the resource method.
* @param requestTime Time of whole request processing (from receiving
* the request until writing the response). (Unix timestamp format)
* @param requestDuration Time when the request matching to the executed resource method has been received
* by Jersey.
*/
void addExecution(String uri, ResourceMethod resourceMethod,
long methodTime, long methodDuration,
long requestTime, long requestDuration) {
ResourceStatisticsImpl.Builder uriStatsBuilder = uriStatistics.get(uri);
if (uriStatsBuilder == null) {
uriStatsBuilder = new ResourceStatisticsImpl.Builder(resourceMethod.getParent());
uriStatistics.put(uri, uriStatsBuilder);
}
uriStatsBuilder.addExecution(resourceMethod, methodTime, methodDuration,
requestTime, requestDuration);
ResourceStatisticsImpl.Builder resourceClassBuilder = getOrCreateResourceBuilder(resourceMethod);
resourceClassBuilder.addExecution(resourceMethod, methodTime, methodDuration,
requestTime, requestDuration);
}
/**
* Add a response status code produces by Jersey.
* @param responseCode Response status code.
*/
void addResponseCode(int responseCode) {
responseStatisticsBuilder.addResponseCode(responseCode);
}
/**
* Set the application statistics.
* @param applicationStatisticsImpl Application statistics.
*/
void setApplicationStatisticsImpl(ApplicationStatisticsImpl applicationStatisticsImpl) {
this.applicationStatisticsImpl = applicationStatisticsImpl;
}
/**
* Build a new instance of monitoring statistics.
* @return New instance of {@code MonitoringStatisticsImpl}.
*/
MonitoringStatisticsImpl build() {
final Function buildingFunction
= new Function() {
@Override
public ResourceStatistics apply(ResourceStatisticsImpl.Builder builder) {
return builder.build();
}
};
Map uriStats = Collections.unmodifiableMap(
Maps.transformValues(uriStatistics, buildingFunction));
Map, ResourceStatistics> classStats = Collections.unmodifiableMap(
Maps.transformValues(this.resourceClassStatistics,
buildingFunction));
return new MonitoringStatisticsImpl(
uriStats, classStats,
requestStatisticsBuilder.build(),
responseStatisticsBuilder.build(),
applicationStatisticsImpl,
exceptionMapperStatisticsBuilder.build());
}
}
private final ExecutionStatistics requestStatistics;
private final ResponseStatisticsImpl responseStatisticsImpl;
private final ApplicationStatistics applicationStatistics;
private final ExceptionMapperStatistics exceptionMapperStatistics;
private final Map uriStatistics;
private final Map, ResourceStatistics> resourceClassStatistics;
private MonitoringStatisticsImpl(Map uriStatistics,
Map, ResourceStatistics> resourceClassStatistics,
ExecutionStatistics requestStatistics,
ResponseStatisticsImpl responseStatistics,
ApplicationStatistics applicationStatistics,
ExceptionMapperStatistics exceptionMapperStatistics) {
this.uriStatistics = uriStatistics;
this.resourceClassStatistics = resourceClassStatistics;
this.requestStatistics = requestStatistics;
this.responseStatisticsImpl = responseStatistics;
this.applicationStatistics = applicationStatistics;
this.exceptionMapperStatistics = exceptionMapperStatistics;
}
@Override
public ExecutionStatistics getRequestStatistics() {
return requestStatistics;
}
@Override
public ResponseStatisticsImpl getResponseStatistics() {
return responseStatisticsImpl;
}
@Override
public Map getUriStatistics() {
return uriStatistics;
}
@Override
public Map, ResourceStatistics> getResourceClassStatistics() {
return resourceClassStatistics;
}
@Override
public ApplicationStatistics getApplicationStatistics() {
return applicationStatistics;
}
@Override
public ExceptionMapperStatistics getExceptionMapperStatistics() {
return exceptionMapperStatistics;
}
@Override
public MonitoringStatistics snapshot() {
// snapshot functionality not yet implemented
return this;
}
}
