/*
* #%L
* JBossOSGi Runtime
* %%
* Copyright (C) 2013 JBoss by Red Hat
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 2.1 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/lgpl-2.1.html>.
* #L%
*/
package org.jboss.gravia.runtime.util;
import java.util.Dictionary;
import java.util.Hashtable;
import java.util.jar.Attributes;
import java.util.jar.Attributes.Name;
import java.util.jar.Manifest;
import org.jboss.gravia.utils.NotNullException;
/**
* Provides Moduel headers from a manifest
*
* @author thomas.diesler@jboss.com
* @since 27-Sep-2013
*
* @ThreadSafe
*/
public final class ManifestHeadersProvider {
private final Manifest manifest;
public ManifestHeadersProvider(Manifest manifest) {
NotNullException.assertValue(manifest, "manifest");
this.manifest = manifest;
}
/**
* Return a mutable dictionary of manifest headers
*/
public Dictionary<String, String> getHeaders() {
Hashtable<String, String> headers = new Hashtable<String, String>();
Attributes mainAttributes = manifest.getMainAttributes();
for (Object key : mainAttributes.keySet()) {
Name name = (Name) key;
String value = mainAttributes.getValue(name);
headers.put(name.toString(), value);
}
return headers;
}
}