com.eucalyptus.portal.provider.impl.S3TagProvider.java Source code

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Here is the source code for com.eucalyptus.portal.provider.impl.S3TagProvider.java

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/*************************************************************************
 * (c) Copyright 2016 Hewlett Packard Enterprise Development Company LP
 *
 * 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/.
 ************************************************************************/
package com.eucalyptus.portal.provider.impl;

import java.util.Set;
import javax.annotation.Nonnull;
import org.apache.log4j.Logger;
import com.amazonaws.AmazonServiceException;
import com.amazonaws.services.s3.model.Bucket;
import com.amazonaws.services.s3.model.BucketTaggingConfiguration;
import com.eucalyptus.auth.principal.User;
import com.eucalyptus.objectstorage.client.EucaS3Client;
import com.eucalyptus.objectstorage.client.EucaS3ClientFactory;
import com.eucalyptus.objectstorage.policy.S3PolicySpec;
import com.eucalyptus.portal.common.provider.TagProvider;
import com.google.common.collect.Sets;

/**
 * Tag provider for S3 tags
 */
public class S3TagProvider implements TagProvider {
    private static final Logger logger = Logger.getLogger(S3TagProvider.class);

    @Nonnull
    @Override
    public String getVendor() {
        return S3PolicySpec.VENDOR_S3;
    }

    @Nonnull
    @Override
    public Set<String> getTagKeys(@Nonnull final User user) {
        final Set<String> tagKeys = Sets.newHashSet();
        try (final EucaS3Client client = EucaS3ClientFactory.getEucaS3Client(user)) {
            for (final Bucket bucket : client.listBuckets())
                try {
                    final BucketTaggingConfiguration taggingConfiguration = client
                            .getBucketTaggingConfiguration(bucket.getName());
                    if (taggingConfiguration != null) {
                        tagKeys.addAll(taggingConfiguration.getTagSet().getAllTags().keySet());
                    }
                } catch (final AmazonServiceException e) {
                    if (!"NoSuchTagSetError".equals(e.getErrorCode())) {
                        throw e;
                    }
                }
        } catch (final Exception e) {
            logger.error("Error describing keys for s3", e);
        }
        return tagKeys;
    }
}