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/*
* Copyright (C) 2013 BMW Group Author: Manfred Bathelt (manfred.bathelt@bmw.de)
* Author: Juergen Gehring (juergen.gehring@bmw.de) This Source Code Form is
* subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the
* MPL was not distributed with this file, You can obtain one at
* http://mozilla.org/MPL/2.0/.
*/
package org.genivi.commonapi.core.ui.preferences;
import java.io.IOException;
import java.io.OutputStream;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.QualifiedName;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.preference.PreferenceStore;
public class PropertyStore extends PreferenceStore {
private IResource resource;
private IPreferenceStore workbenchStore;
private String pageId;
private boolean inserting = false;
public PropertyStore(IResource resource, IPreferenceStore workbenchStore, String pageId) throws IOException {
this.resource = resource;
this.workbenchStore = workbenchStore;
this.pageId = pageId;
}
/*** Write modified values back to properties ***/
/*
* (non-Javadoc)
* @see org.eclipse.jface.preference.IPersistentPreferenceStore#save()
*/
public void save() throws IOException {
writeProperties();
}
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.preference.PreferenceStore#save(java.io.OutputStream,
* java.lang.String)
*/
public void save(OutputStream out, String header) throws IOException {
writeProperties();
}
/**
* Writes modified preferences into resource properties.
*/
private void writeProperties() throws IOException {
String[] preferences = super.preferenceNames();
for (int i = 0; i < preferences.length; i++) {
String name = preferences[i];
try {
setProperty(name, getString(name));
} catch (CoreException e) {
throw new IOException(Messages.getString("PropertyStore.Cannot_write_resource_property") + name); //$NON-NLS-1$
}
}
}
/**
* Convenience method to set a property
* @param name
* - the preference name
* @param value
* - the property value or null to delete the property
* @throws CoreException
*/
private void setProperty(String name, String value) throws CoreException {
resource.setPersistentProperty(new QualifiedName(pageId, name), value);
}
/*** Get default values (Delegate to workbench store) ***/
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.preference.IPreferenceStore#getDefaultBoolean(java.
* lang.String)
*/
public boolean getDefaultBoolean(String name) {
return workbenchStore.getDefaultBoolean(name);
}
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.preference.IPreferenceStore#getDefaultDouble(java.lang
* .String)
*/
public double getDefaultDouble(String name) {
return workbenchStore.getDefaultDouble(name);
}
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.preference.IPreferenceStore#getDefaultFloat(java.lang
* .String)
*/
public float getDefaultFloat(String name) {
return workbenchStore.getDefaultFloat(name);
}
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.preference.IPreferenceStore#getDefaultInt(java.lang
* .String)
*/
public int getDefaultInt(String name) {
return workbenchStore.getDefaultInt(name);
}
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.preference.IPreferenceStore#getDefaultLong(java.lang
* .String)
*/
public long getDefaultLong(String name) {
return workbenchStore.getDefaultLong(name);
}
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.preference.IPreferenceStore#getDefaultString(java.lang
* .String)
*/
public String getDefaultString(String name) {
return workbenchStore.getDefaultString(name);
}
/*** Get property values ***/
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.preference.IPreferenceStore#getBoolean(java.lang.String
* )
*/
public boolean getBoolean(String name) {
insertValue(name);
return super.getBoolean(name);
}
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.preference.IPreferenceStore#getDouble(java.lang.String)
*/
public double getDouble(String name) {
insertValue(name);
return super.getDouble(name);
}
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.preference.IPreferenceStore#getFloat(java.lang.String)
*/
public float getFloat(String name) {
insertValue(name);
return super.getFloat(name);
}
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.preference.IPreferenceStore#getInt(java.lang.String)
*/
public int getInt(String name) {
insertValue(name);
return super.getInt(name);
}
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.preference.IPreferenceStore#getLong(java.lang.String)
*/
public long getLong(String name) {
insertValue(name);
return super.getLong(name);
}
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.preference.IPreferenceStore#getString(java.lang.String)
*/
public String getString(String name) {
insertValue(name);
return super.getString(name);
}
/**
* @param name
*/
private synchronized void insertValue(String name) {
if (inserting)
return;
if (super.contains(name))
return;
inserting = true;
String prop = null;
try {
prop = getProperty(name);
} catch (CoreException e) {
}
if (prop == null)
prop = workbenchStore.getString(name);
if (prop != null)
setValue(name, prop);
inserting = false;
}
/**
* Convenience method to fetch a property
* @param name
* - the preference name
* @return - the property value
* @throws CoreException
*/
private String getProperty(String name) throws CoreException {
return resource.getPersistentProperty(new QualifiedName(pageId, name));
}
/*** Misc ***/
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.preference.IPreferenceStore#contains(java.lang.String)
*/
public boolean contains(String name) {
return workbenchStore.contains(name);
}
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.preference.IPreferenceStore#setToDefault(java.lang.
* String)
*/
public void setToDefault(String name) {
setValue(name, getDefaultString(name));
}
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.preference.IPreferenceStore#isDefault(java.lang.String)
*/
public boolean isDefault(String name) {
String defaultValue = getDefaultString(name);
if (defaultValue == null)
return false;
return defaultValue.equals(getString(name));
}
}
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