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/*******************************************************************************
* Copyright (c) 2009, 2010 Andrew Gvozdev
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Andrew Gvozdev - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.codan.internal.ui;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.regex.Pattern;
import org.eclipse.cdt.codan.ui.AbstarctCodanCMarkerResolution;
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtensionPoint;
import org.eclipse.core.runtime.Platform;
import org.eclipse.ui.IMarkerResolution;
import org.eclipse.ui.IMarkerResolutionGenerator;
public class CodanProblemMarkerResolutionGenerator implements
IMarkerResolutionGenerator {
private static final String EXTENSION_POINT_NAME = "codanMarkerResolution"; //$NON-NLS-1$
private static Map<String, Collection<ConditionalResolution>> resolutions = new HashMap<String, Collection<ConditionalResolution>>();
private static boolean resolutionsLoaded = false;
static class ConditionalResolution {
IMarkerResolution res;
String messagePattern;
public ConditionalResolution(IMarkerResolution res2,
String messagePattern2) {
res = res2;
messagePattern = messagePattern2;
}
}
public IMarkerResolution[] getResolutions(IMarker marker) {
if (resolutionsLoaded == false) {
readExtensions();
}
String id = marker.getAttribute(IMarker.PROBLEM, null);
if (id == null)
return new IMarkerResolution[0];
String message = marker.getAttribute(IMarker.MESSAGE, ""); //$NON-NLS-1$
Collection<ConditionalResolution> collection = resolutions.get(id);
if (collection != null) {
ArrayList<IMarkerResolution> list = new ArrayList<IMarkerResolution>();
for (Iterator<ConditionalResolution> iterator = collection
.iterator(); iterator.hasNext();) {
ConditionalResolution res = iterator.next();
if (res.messagePattern != null) {
if (!message.matches(res.messagePattern))
continue;
}
if (res.res instanceof AbstarctCodanCMarkerResolution) {
if (!((AbstarctCodanCMarkerResolution)res.res).isApplicable(marker))
continue;
}
list.add(res.res);
}
if (list.size() > 0)
return list.toArray(new IMarkerResolution[list.size()]);
}
return new IMarkerResolution[0];
}
private static synchronized void readExtensions() {
IExtensionPoint ep = Platform.getExtensionRegistry().getExtensionPoint(
CodanUIActivator.PLUGIN_ID, EXTENSION_POINT_NAME);
if (ep == null)
return;
try {
IConfigurationElement[] elements = ep.getConfigurationElements();
// process categories
for (int i = 0; i < elements.length; i++) {
IConfigurationElement configurationElement = elements[i];
processResolution(configurationElement);
}
} finally {
resolutionsLoaded = true;
}
}
/**
* @param configurationElement
*/
private static void processResolution(
IConfigurationElement configurationElement) {
if (configurationElement.getName().equals("resolution")) { //$NON-NLS-1$
String id = configurationElement.getAttribute("problemId"); //$NON-NLS-1$
if (id == null) {
CodanUIActivator.log("Extension for " + EXTENSION_POINT_NAME //$NON-NLS-1$
+ " problemId is not defined"); //$NON-NLS-1$
return;
}
IMarkerResolution res;
try {
res = (IMarkerResolution) configurationElement
.createExecutableExtension("class");//$NON-NLS-1$
} catch (CoreException e) {
CodanUIActivator.log(e);
return;
}
String messagePattern = configurationElement
.getAttribute("messagePattern"); //$NON-NLS-1$
if (messagePattern != null) {
try {
Pattern.compile(messagePattern);
} catch (Exception e) {
// bad pattern log and ignore
CodanUIActivator.log("Extension for " //$NON-NLS-1$
+ EXTENSION_POINT_NAME
+ " messagePattern is invalid: " + e.getMessage()); //$NON-NLS-1$
return;
}
}
ConditionalResolution co = new ConditionalResolution(res,
messagePattern);
addResolution(id, co);
}
}
public static void addResolution(String id, IMarkerResolution res,
String messagePattern) {
addResolution(id, new ConditionalResolution(res, messagePattern));
}
private static void addResolution(String id, ConditionalResolution res) {
Collection<ConditionalResolution> collection = resolutions.get(id);
if (collection == null) {
collection = new ArrayList<ConditionalResolution>();
resolutions.put(id, collection);
}
collection.add(res);
}
}
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