/*
* Copyright 2003-2010 Tufts University  Licensed under the
 * Educational Community 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.osedu.org/licenses/ECL-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.
 */
package edu.tufts.vue.dsm.impl;

public class VueAssetResolver
implements edu.tufts.vue.dsm.AssetResolver
{
	/**
	*/
	public edu.tufts.vue.dsm.AssetReference getAssetReference(org.osid.shared.Id assetId,
											org.osid.shared.Id repositoryId) {
		try {
			edu.tufts.vue.dsm.DataSourceManager dsm = VueDataSourceManager.getInstance();
			edu.tufts.vue.dsm.DataSource[] dataSources = dsm.getDataSources();
			for (int i=0; i < dataSources.length; i++) {
				if (dataSources[i].getRepositoryId().isEqual(repositoryId)) {
					return new VueAssetReference(dataSources[i].getOsidLoadKey(),
												 assetId.getIdString());
				}
			}
		} catch (Throwable t) {
			edu.tufts.vue.util.Logger.log(t,"getting reference for Asset");
		}
		return null;
	}

	/**
	*/
	public org.osid.repository.Asset getAsset(String osidLoadKey,
											  String assetIdString)
	throws org.osid.repository.RepositoryException {
		try {
			org.osid.id.IdManager idManager = VueOsidFactory.getInstance().getIdManagerInstance();
			org.osid.repository.RepositoryManager repositoryManager = VueOsidFactory.getInstance().getRepositoryManagerInstance(osidLoadKey);
			return repositoryManager.getAsset(idManager.getId(assetIdString));
		} catch (org.osid.repository.RepositoryException rex) {
			edu.tufts.vue.util.Logger.log("getting Asset from reference");
			throw rex;
		} catch (Throwable t) {
			edu.tufts.vue.util.Logger.log(t,"getting Asset from reference");
		}
		return null;
	}
}