/*************************************************************************
* Copyright 2009-2014 Eucalyptus Systems, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3 of the License.
*
* 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 Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*
* Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
* CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
* additional information or have any questions.
************************************************************************/
package com.eucalyptus.objectstorage.policy;
import java.util.Collections;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import net.sf.json.JSONException;
import com.eucalyptus.auth.policy.ern.Ern;
import com.eucalyptus.auth.policy.ern.ServiceErnBuilder;
/**
*
*/
public class S3ErnBuilder extends ServiceErnBuilder {
public static final Pattern RESOURCE_PATTERN = Pattern.compile("([^\\s/]+)(?:(/\\S+))?");
public static final int ARN_PATTERNGROUP_S3_BUCKET = 1;
public static final int ARN_PATTERNGROUP_S3_OBJECT = 2;
public S3ErnBuilder() {
super(Collections.singleton("s3"));
}
@Override
public Ern build(final String ern, final String service, final String region, final String account, final String resource) throws JSONException {
final Matcher matcher = RESOURCE_PATTERN.matcher(resource);
if (matcher.matches()) {
String bucket = matcher.group(ARN_PATTERNGROUP_S3_BUCKET);
String object = matcher.group(ARN_PATTERNGROUP_S3_OBJECT);
return new S3ResourceName(account, bucket, object);
}
throw new JSONException("'" + ern + "' is not a valid ARN");
}
}