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// Copyright (C) 2013 The Android Open Source Project
//
// Licensed 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 com.google.gerrit.pgm.util;
import com.google.common.primitives.Longs;
import com.google.gerrit.server.config.GerritServerConfig;
import com.google.gerrit.server.config.SitePaths;
import com.google.gerrit.server.schema.DataSourceProvider;
import com.google.gerrit.server.schema.DataSourceType;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import org.eclipse.jgit.lib.Config;
import java.io.File;
import java.io.FileFilter;
import java.util.Arrays;
import java.util.Comparator;
import javax.sql.DataSource;
/** Loads the site library if not yet loaded. */
@Singleton
public class SiteLibraryBasedDataSourceProvider extends DataSourceProvider {
private final File libdir;
private boolean init;
@Inject
SiteLibraryBasedDataSourceProvider(SitePaths site,
@GerritServerConfig Config cfg,
DataSourceProvider.Context ctx,
DataSourceType dst) {
super(site, cfg, ctx, dst);
libdir = site.lib_dir;
}
public synchronized DataSource get() {
if (!init) {
loadSiteLib();
init = true;
}
return super.get();
}
private void loadSiteLib() {
File[] jars = libdir.listFiles(new FileFilter() {
@Override
public boolean accept(File path) {
String name = path.getName();
return (name.endsWith(".jar") || name.endsWith(".zip"))
&& path.isFile();
}
});
if (jars != null && 0 < jars.length) {
Arrays.sort(jars, new Comparator<File>() {
@Override
public int compare(File a, File b) {
// Sort by reverse last-modified time so newer JARs are first.
int cmp = Longs.compare(b.lastModified(), a.lastModified());
if (cmp != 0) {
return cmp;
}
return a.getName().compareTo(b.getName());
}
});
IoUtil.loadJARs(jars);
}
}
}
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