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/**
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You 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.
 */
package org.apache.geronimo.system.repository;

import java.io.File;
import java.net.URI;
import java.net.URISyntaxException;

import org.apache.geronimo.system.serverinfo.ServerInfo;

/**
 * @version $Rev: 476049 $ $Date: 2006-11-17 15:35:17 +1100 (Fri, 17 Nov 2006) $
 */
public class ServerInfoRootResolver {
    private final ServerInfo serverInfo;
    private final boolean resolveToServer;

    public ServerInfoRootResolver(ServerInfo serverInfo, boolean resolveToServer) {
        this.serverInfo = serverInfo;
        this.resolveToServer = resolveToServer;
    }
    
    public File resolve(URI root) {
        if (root == null) throw new NullPointerException("root is null");

        if (!root.toString().endsWith("/")) {
            try {
                root = new URI(root.toString() + "/");
            } catch (URISyntaxException e) {
                throw new RuntimeException("Invalid repository root (does not end with / ) and can't add myself", e);
            }
        }

        URI resolvedUri;
        if (serverInfo != null) {
            resolvedUri = resolveToServer ? serverInfo.resolveServer(root) : serverInfo.resolve(root);
        } else {
            resolvedUri = root;
        }

        if (!resolvedUri.getScheme().equals("file")) {
            throw new IllegalStateException("FileSystemRepository must have a root that's a local directory (not " + resolvedUri + ")");
        }

        File rootFile = new File(resolvedUri);
        return rootFile;
    }

}