/*
* #%L
* Gravia :: Runtime :: API
* %%
* Copyright (C) 2013 - 2014 JBoss by Red Hat
* %%
* 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.
* #L%
*/
package org.jboss.gravia.runtime.spi;
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;
}
}