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/*******************************************************************************
* Copyright (c) 2008, 2018 Red Hat, Inc.
*
* This program and the accompanying materials are made
* available under the terms of the Eclipse Public License 2.0
* which is available at https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Kent Sebastian <ksebasti@redhat.com> - initial API and implementation
*******************************************************************************/
package org.eclipse.linuxtools.internal.oprofile.core.model;
import org.eclipse.linuxtools.internal.oprofile.core.Oprofile;
/**
* A root node for the data model. Only one instance exists at any time,
* although the contents will change. On instantiation the events and sessions
* are gathered.
*
* Note that this data model does not map 1:1 to the oprofile data model. This
* model is for use in profiling one application compiled with debug info, from
* within eclipse.
*/
public class OpModelRoot {
// single instance
private static OpModelRoot modelRoot = new OpModelRoot();
private OpModelSession[] session;
protected OpModelRoot() {
session = null;
}
public static OpModelRoot getDefault() {
return modelRoot;
}
public void refreshModel() {
// TODO-performance/interactivity: some persistence for events/sessions
// that dont change from run to run (non default sessions)
session = getNewSessions();
if (session != null) {
for (int i = 0; i < session.length; i++) {
if (session[i] != null)
session[i].refreshModel();
}
}
}
/**
* return list of session collected on this system as well as events under each
* of them.
*
* @return collected sessions list
* @since 3.0
*/
protected OpModelSession[] getNewSessions() {
// launch `opxml sessions`, gather up events & the sessions under them
return Oprofile.getSessions();
}
public OpModelSession[] getSessions() {
return session;
}
@Override
public String toString() {
String s = ""; //$NON-NLS-1$
if (session != null) {
for (int i = 0; i < session.length; i++) {
if (session[i] != null) {
s += "Session: "; //$NON-NLS-1$
s += session[i].toString("\t"); //$NON-NLS-1$
}
}
}
return s;
}
}
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