/*
* Sonatype Nexus (TM) Open Source Version
* Copyright (c) 2007-2014 Sonatype, Inc.
* All rights reserved. Includes the third-party code listed at http://links.sonatype.com/products/nexus/oss/attributions.
*
* This program and the accompanying materials are made available under the terms of the Eclipse Public License Version 1.0,
* which accompanies this distribution and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Sonatype Nexus (TM) Professional Version is available from Sonatype, Inc. "Sonatype" and "Sonatype Nexus" are trademarks
* of Sonatype, Inc. Apache Maven is a trademark of the Apache Software Foundation. M2eclipse is a trademark of the
* Eclipse Foundation. All other trademarks are the property of their respective owners.
*/
package org.sonatype.nexus.obr;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Properties;
import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;
import org.sonatype.nexus.configuration.application.ApplicationConfiguration;
import org.sonatype.sisu.goodies.common.ComponentSupport;
import org.sonatype.sisu.goodies.common.io.FileReplacer;
import org.sonatype.sisu.goodies.common.io.FileReplacer.ContentWriter;
import com.google.common.base.Throwables;
import org.apache.commons.io.IOUtils;
import org.codehaus.plexus.util.PropertyUtils;
import org.codehaus.plexus.util.StringUtils;
import static com.google.common.base.Preconditions.checkNotNull;
@Named
@Singleton
public class DefaultObrPluginConfiguration
extends ComponentSupport
implements ObrPluginConfiguration
{
private static final String DEFAULT_OBR_PROPERTY_PATH = "/META-INF/nexus-obr-plugin/nexus-obr-plugin.properties";
private final ApplicationConfiguration applicationConfiguration;
private Map<String, String> configMap;
private long lastLoaded;
@Inject
public DefaultObrPluginConfiguration(final ApplicationConfiguration applicationConfiguration) {
this.applicationConfiguration = checkNotNull(applicationConfiguration);
}
protected File getConfigurationFile() {
return new File(applicationConfiguration.getConfigurationDirectory(), "nexus-obr-plugin.properties");
}
private synchronized Map<String, String> getConfiguration() {
final File configFile = getConfigurationFile();
if (null == configMap || lastLoaded < configFile.lastModified()) {
if (!configFile.exists()) {
writeDefaultConfiguration();
}
configMap = loadConfiguration(configFile);
lastLoaded = System.currentTimeMillis();
}
return configMap;
}
private static Map<String, String> loadConfiguration(final File file) {
final Map<String, String> newConfig = new HashMap<String, String>();
final Properties properties = PropertyUtils.loadProperties(file);
for (final Entry<?, ?> e : properties.entrySet()) {
final String key = StringUtils.defaultString(e.getKey(), null);
if (key != null) {
newConfig.put(key, StringUtils.defaultString(e.getValue(), null));
}
}
return newConfig;
}
private void writeDefaultConfiguration() {
final File configurationFile = getConfigurationFile();
log.debug("Saving configuration: {}", configurationFile);
try {
final FileReplacer fileReplacer = new FileReplacer(configurationFile);
// we save this file many times, don't litter backups
fileReplacer.setDeleteBackupFile(true);
fileReplacer.replace(new ContentWriter()
{
@Override
public void write(final BufferedOutputStream output)
throws IOException
{
try (InputStream is = DefaultObrPluginConfiguration.class.getResourceAsStream(DEFAULT_OBR_PROPERTY_PATH)) {
IOUtils.copy(is, output);
}
}
});
}
catch (IOException e) {
log.warn(
"Could not write the OBR plugin configuration to path " + configurationFile.getAbsolutePath(), e);
Throwables.propagate(e);
}
}
private boolean getBoolean(final String key) {
return Boolean.valueOf(getConfiguration().get(key));
}
public boolean isBundleCacheActive() {
return getBoolean(ObrPluginConfiguration.CATEGORY_BUNDLE_CACHE + ".enabled");
}
}