com.eucalyptus.imaging.manifest.ImportImageManifest.java Source code

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Here is the source code for com.eucalyptus.imaging.manifest.ImportImageManifest.java

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/*************************************************************************
 * 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.imaging.manifest;

import java.io.IOException;

import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;
import org.apache.log4j.Logger;

import com.eucalyptus.util.EucalyptusCloudException;

public enum ImportImageManifest implements ImageManifest {
    INSTANCE;

    private static Logger LOG = Logger.getLogger(ImportImageManifest.class);

    @Override
    public FileType getFileType() {
        // TODO: return actual type from import manifest
        return FileType.RAW;
    }

    @Override
    public String getPartsPath() {
        return "/manifest/import/parts/part";
    }

    @Override
    public String getPartUrlElement() {
        return "get-url";
    }

    @Override
    public boolean signPartUrl() {
        return false;
    }

    @Override
    public String getSizePath() {
        return "/manifest/import/size";
    }

    @Override
    public String getManifest(String location) throws EucalyptusCloudException {
        HttpClient client = new HttpClient();
        client.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler());
        GetMethod method = new GetMethod(location);
        String s = null;
        try {
            client.executeMethod(method);
            s = method.getResponseBodyAsString();
            if (s == null) {
                throw new EucalyptusCloudException("Can't download manifest from " + location + " content is null");
            }
        } catch (IOException ex) {
            throw new EucalyptusCloudException("Can't download manifest from " + location, ex);
        } finally {
            method.releaseConnection();
        }
        return s;
    }

    @Override
    public String getBaseBucket(String location) {
        throw new UnsupportedOperationException();
    }
}