/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.openjpa.lib.meta;
import java.security.AccessController;
import org.apache.openjpa.lib.util.J2DoPrivHelper;
import org.apache.openjpa.lib.util.Localizer;
/**
* Utility class for performing common operations on {@link SourceTracker}s.
*
* @since 0.3.3.1
*/
public class SourceTrackers {
private static final Localizer _loc =
Localizer.forPackage(SourceTrackers.class);
private static final String SEP = J2DoPrivHelper.getLineSeparator();
/**
* Create a message appropriate for display to the user describing
* the location(s) that <code>trackers</code> were loaded from.
*
* @param trackers the source-trackers for which location info should
* be provided.
*/
public static String getSourceLocationMessage(SourceTracker[] trackers) {
StringBuilder buf = new StringBuilder(20 * (trackers.length + 1));
buf.append(_loc.get("source-trackers-location-header")).append(SEP);
String sourceFilePath;
for (int i = 0; i < trackers.length; i++) {
sourceFilePath = (trackers[i].getSourceFile() == null ?
_loc.get("source-tracker-file-unknown").getMessage() :
AccessController.doPrivileged(
J2DoPrivHelper.getAbsolutePathAction(
trackers[i].getSourceFile())));
buf.append(" ").append(_loc.get(
"source-trackers-location-line-item",
trackers[i].getResourceName(), sourceFilePath));
if (i < trackers.length - 1)
buf.append(SEP);
}
return buf.toString();
}
}