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TriggerMonitor.java
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TriggerMonitor.java
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/*
* The MIT License
*
* Copyright 2010 Sony Ericsson Mobile Communications. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.sonyericsson.hudson.plugins.gerrit.trigger.hudsontrigger.actions.manual;
import com.sonymobile.tools.gerrit.gerritevents.dto.GerritEvent;
import com.sonyericsson.hudson.plugins.gerrit.trigger.events.lifecycle.GerritEventLifecycle;
import com.sonyericsson.hudson.plugins.gerrit.trigger.events.lifecycle.GerritEventLifecycleListener;
import com.sonyericsson.hudson.plugins.gerrit.trigger.hudsontrigger.data.TriggeredItemEntity;
import hudson.model.BallColor;
import hudson.model.Job;
import hudson.model.Result;
import hudson.model.Run;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
/**
* Keeps track of the lifecycle of a GerritEvent.
* @author Robert Sandell <robert.sandell@sonyericsson.com>
*/
public class TriggerMonitor implements GerritEventLifecycleListener {
private List<EventState> events = new LinkedList<EventState>();
/**
* Adds the event and a holder for its state to the list of triggered events.
* And adds this TriggerMonitor as a listener to the event.
* Unless it doesn't already exists in the list of events.
* @param gerritEventLifecycle the event.
*/
public synchronized void add(GerritEventLifecycle gerritEventLifecycle) {
if (!contains(gerritEventLifecycle)) {
gerritEventLifecycle.addListener(this);
events.add(new EventState(gerritEventLifecycle));
}
}
/**
* Checks to see if the list of triggered events and their states contains the given event.
* @param gerritEventLifecycle the event to check.
* @return true if it exests in the list.
* @see #getEvents()
*/
public synchronized boolean contains(GerritEventLifecycle gerritEventLifecycle) {
if (findState(gerritEventLifecycle.getEvent()) != null) {
return true;
}
return false;
}
/**
* Finds the EventState containing the given event.
* @param gerritEvent the event.
* @return the state, or null if there is none.
*/
private synchronized EventState findState(GerritEvent gerritEvent) {
for (EventState state : events) {
if (state.gerritEventLifecycle.getEvent().equals(gerritEvent)) {
return state;
}
}
return null;
}
@Override
public synchronized void triggerScanStarting(GerritEvent event) {
EventState state = findState(event);
if (state != null) {
state.triggerScanStarted = true;
}
}
@Override
public synchronized void triggerScanDone(GerritEvent event) {
EventState state = findState(event);
if (state != null) {
state.triggerScanDone = true;
}
}
@Override
public synchronized void projectTriggered(GerritEvent event, Job project) {
EventState state = findState(event);
if (state != null) {
state.addProject(project);
}
}
@Override
public synchronized void buildStarted(GerritEvent event, Run build) {
EventState state = findState(event);
if (state != null) {
state.setBuild(build);
}
}
@Override
public synchronized void buildCompleted(GerritEvent event, Run build) {
EventState state = findState(event);
if (state != null) {
if (state.allBuildsCompleted && state.isReallyAllBuildsCompleted()) {
state.gerritEventLifecycle.removeListener(this);
}
}
}
@Override
public synchronized void allBuildsCompleted(GerritEvent event) {
EventState state = findState(event);
if (state != null) {
state.allBuildsCompleted = true;
if (state.isReallyAllBuildsCompleted()) {
state.gerritEventLifecycle.removeListener(this);
}
}
}
/**
* The list of events and their states.
* @return a list.
*/
public synchronized List<EventState> getEvents() {
return events;
}
/**
* An iterator of the list of events and their states.
* @return a iterator.
*/
@SuppressWarnings("unused") //called from Jelly
public synchronized Iterator<EventState> getEventsIterator() {
return events.iterator();
}
/**
* State information about an event.
*/
public static class EventState {
private GerritEventLifecycle gerritEventLifecycle;
private boolean triggerScanStarted = false;
private boolean triggerScanDone = false;
private boolean allBuildsCompleted = false;
private List<TriggeredItemEntity> builds;
/**
* Standard constructor.
* @param gerritEventLifecycle the event to track.
*/
EventState(GerritEventLifecycle gerritEventLifecycle) {
this.gerritEventLifecycle = gerritEventLifecycle;
builds = new LinkedList<TriggeredItemEntity>();
}
/**
* Adds a project to the list of triggered projects.
* @param project the project.
*/
void addProject(Job project) {
builds.add(new TriggeredItemEntity(project));
}
/**
* Sets the started build to an already triggered project.
* @param build the build.
*/
void setBuild(Run build) {
String fullName = build.getParent().getFullName();
for (TriggeredItemEntity entity : builds) {
if (entity.equals(fullName)) {
entity.setBuild(build);
}
}
}
/**
* Returns the appropriate ball color for the current status of this event and its builds.
* @return the path to the image of the ball.
* @see hudson.model.Result#color
* @see hudson.model.BallColor#getImage()
*/
@SuppressWarnings("unused") //called from jelly
public String getBallColor() {
if (!triggerScanStarted) {
return BallColor.GREY.getIconClassName();
} else if (!triggerScanDone) {
return BallColor.GREY_ANIME.getIconClassName();
} else if (isUnTriggered()) {
return BallColor.DISABLED.getIconClassName();
} else {
Result result = getLeastFavorableResult();
if (result != null) {
return result.color.getIconClassName();
} else {
return BallColor.GREY_ANIME.getIconClassName();
}
}
}
/**
* Gives the least favorable {@link hudson.model.Run#getResult()} in the list of build, if there is any results.
* @return the result or null if there is none.
*/
private Result getLeastFavorableResult() {
Result least = null;
for (TriggeredItemEntity entity : builds) {
if (entity.getBuild() != null && entity.getBuild().getResult() != null) {
Result tmp = entity.getBuild().getResult();
if (least == null) {
least = tmp;
} else {
least = least.combine(tmp);
}
}
}
return least;
}
/**
* If no active triggers where interested in this event.
* Determined by: {@link #isTriggerScanDone()} and {@link #getBuilds()}.size() <= 0
* unless not {@link #isTriggerScanStarted()}.
* @return true if so.
*/
public boolean isUnTriggered() {
if (!triggerScanStarted) {
return false;
} else {
return triggerScanDone && builds.size() <= 0;
}
}
/**
* The event.
* @return the event.
*/
public GerritEventLifecycle getEvent() {
return gerritEventLifecycle;
}
/**
* If the active triggers in the system has started to be notified.
* @return true if so.
*/
public boolean isTriggerScanStarted() {
return triggerScanStarted;
}
/**
* If all the active triggers in the system has been notified about this event.
* @return true if so.
*/
public boolean isTriggerScanDone() {
return triggerScanDone;
}
/**
* If all builds started by this event has completed.
* @return true if so.
*/
public boolean isAllBuildsCompleted() {
return allBuildsCompleted;
}
/**
* Gets the builds that has started for this event.
* @return the builds.
*/
public List<TriggeredItemEntity> getBuilds() {
return builds;
}
/**
* Goes through the list of builds and checks if anyone is still building.
* Even though the event {@link TriggerMonitor#allBuildsCompleted(GerritEvent)}
* has been called that only applies to non silent builds, an extra check is needed.
* @return true if all builds has completed.
*/
public boolean isReallyAllBuildsCompleted() {
for (TriggeredItemEntity entity : builds) {
if (entity.getBuild() == null || !entity.getBuild().isLogUpdated()) {
return false;
}
}
return true;
}
}
}