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/*******************************************************************************
* Copyright (c) 2008-2010 Sonatype, Inc.
* 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:
* Sonatype, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.m2e.core.internal.preferences;
import java.util.Map;
import org.osgi.service.prefs.BackingStoreException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.ListenerList;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.preferences.DefaultScope;
import org.eclipse.core.runtime.preferences.IEclipsePreferences;
import org.eclipse.core.runtime.preferences.IEclipsePreferences.INodeChangeListener;
import org.eclipse.core.runtime.preferences.IEclipsePreferences.IPreferenceChangeListener;
import org.eclipse.core.runtime.preferences.IEclipsePreferences.NodeChangeEvent;
import org.eclipse.core.runtime.preferences.IEclipsePreferences.PreferenceChangeEvent;
import org.eclipse.core.runtime.preferences.IPreferenceFilter;
import org.eclipse.core.runtime.preferences.IPreferencesService;
import org.eclipse.core.runtime.preferences.InstanceScope;
import org.eclipse.m2e.core.core.IMavenConstants;
import org.eclipse.m2e.core.embedder.IMavenConfiguration;
import org.eclipse.m2e.core.embedder.IMavenConfigurationChangeListener;
import org.eclipse.m2e.core.embedder.MavenConfigurationChangeEvent;
public class MavenConfigurationImpl implements IMavenConfiguration, IPreferenceChangeListener, INodeChangeListener {
private static final Logger log = LoggerFactory.getLogger(MavenConfigurationImpl.class);
private final IEclipsePreferences[] preferencesLookup = new IEclipsePreferences[2];
private final IPreferencesService preferenceStore;
private final ListenerList listeners = new ListenerList(ListenerList.IDENTITY);
public MavenConfigurationImpl() {
preferenceStore = Platform.getPreferencesService();
init();
}
private boolean exists(IEclipsePreferences preferenceNode) {
if(preferenceNode == null) {
return false;
}
try {
return preferenceNode.nodeExists("");
} catch(BackingStoreException ex) {
log.error(ex.getMessage(), ex);
return false;
}
}
private void init() {
if(exists(preferencesLookup[0])) {
((IEclipsePreferences) preferencesLookup[0].parent()).removeNodeChangeListener(this);
preferencesLookup[0].removePreferenceChangeListener(this);
}
preferencesLookup[0] = new InstanceScope().getNode(IMavenConstants.PLUGIN_ID);
((IEclipsePreferences) preferencesLookup[0].parent()).addNodeChangeListener(this);
preferencesLookup[0].addPreferenceChangeListener(this);
if(exists(preferencesLookup[1])) {
((IEclipsePreferences) preferencesLookup[1].parent()).removeNodeChangeListener(this);
preferencesLookup[1].removePreferenceChangeListener(this);
}
preferencesLookup[1] = new DefaultScope().getNode(IMavenConstants.PLUGIN_ID);
((IEclipsePreferences) preferencesLookup[1].parent()).addNodeChangeListener(this);
}
public String getGlobalSettingsFile() {
return preferenceStore.get(MavenPreferenceConstants.P_GLOBAL_SETTINGS_FILE, null, preferencesLookup);
}
public String getUserSettingsFile() {
return preferenceStore.get(MavenPreferenceConstants.P_USER_SETTINGS_FILE, null, preferencesLookup);
}
public boolean isDebugOutput() {
return Boolean.parseBoolean(preferenceStore.get(MavenPreferenceConstants.P_DEBUG_OUTPUT, null, preferencesLookup));
}
public boolean isDownloadJavaDoc() {
return Boolean.parseBoolean(preferenceStore.get(MavenPreferenceConstants.P_DOWNLOAD_JAVADOC, null,
preferencesLookup));
}
public boolean isDownloadSources() {
return Boolean.parseBoolean(preferenceStore.get(MavenPreferenceConstants.P_DOWNLOAD_SOURCES, null,
preferencesLookup));
}
public void setDownloadSources(boolean downloadSources) {
preferencesLookup[0].putBoolean(MavenPreferenceConstants.P_DOWNLOAD_SOURCES, downloadSources);
}
public boolean isHideFoldersOfNestedProjects() {
return Boolean.parseBoolean(preferenceStore.get(MavenPreferenceConstants.P_HIDE_FOLDERS_OF_NESTED_PROJECTS, null,
preferencesLookup));
}
public boolean isOffline() {
return Boolean.parseBoolean(preferenceStore.get(MavenPreferenceConstants.P_OFFLINE, null, preferencesLookup));
}
public void setUserSettingsFile(String settingsFile) throws CoreException {
preferencesLookup[0].put(MavenPreferenceConstants.P_USER_SETTINGS_FILE, nvl(settingsFile));
preferenceStore.applyPreferences(preferencesLookup[0], new IPreferenceFilter[] {getPreferenceFilter()});
}
public void setGlobalSettingsFile(String globalSettingsFile) throws CoreException {
preferencesLookup[0].put(MavenPreferenceConstants.P_GLOBAL_SETTINGS_FILE, nvl(globalSettingsFile));
preferenceStore.applyPreferences(preferencesLookup[0], new IPreferenceFilter[] {getPreferenceFilter()});
}
private static String nvl(String s) {
return s == null ? "" : s; //$NON-NLS-1$
}
public boolean isUpdateProjectsOnStartup() {
return Boolean.parseBoolean(preferenceStore
.get(MavenPreferenceConstants.P_UPDATE_PROJECTS, null, preferencesLookup));
}
public boolean isUpdateIndexesOnStartup() {
return Boolean
.parseBoolean(preferenceStore.get(MavenPreferenceConstants.P_UPDATE_INDEXES, null, preferencesLookup));
}
public synchronized void addConfigurationChangeListener(IMavenConfigurationChangeListener listener) {
this.listeners.add(listener);
}
public void preferenceChange(PreferenceChangeEvent event) {
MavenConfigurationChangeEvent mavenEvent = new MavenConfigurationChangeEvent(event.getKey(), event.getNewValue(),
event.getOldValue());
for(Object listener : listeners.getListeners()) {
try {
((IMavenConfigurationChangeListener) listener).mavenConfigurationChange(mavenEvent);
} catch(Exception e) {
log.error("Could not deliver maven configuration change event", e);
}
}
}
public void added(NodeChangeEvent event) {
}
public void removed(NodeChangeEvent event) {
if(event.getChild() == preferencesLookup[0] || event.getChild() == preferencesLookup[1]) {
init();
}
}
private IPreferenceFilter getPreferenceFilter() {
return new IPreferenceFilter() {
public String[] getScopes() {
return new String[] {InstanceScope.SCOPE, DefaultScope.SCOPE};
}
public Map getMapping(String scope) {
return null;
}
};
}
}
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