org.dcache.sf.AbstractSfNearlineStorage.java Source code

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Here is the source code for org.dcache.sf.AbstractSfNearlineStorage.java

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/* dCache - http://www.dcache.org/
 *
 * Copyright (C) 2014 Deutsches Elektronen-Synchrotron
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.dcache.sf;

import com.mongodb.MongoClient;
import com.mongodb.MongoClientURI;

import java.util.Map;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkState;

public abstract class AbstractSfNearlineStorage extends ListeningNearlineStorage {
    protected final String type;
    protected final String name;

    protected volatile String mongoUrl;

    protected MongoClient client;

    public AbstractSfNearlineStorage(String type, String name) {
        this.type = type;
        this.name = name;
    }

    @Override
    public synchronized void configure(Map<String, String> properties) throws IllegalArgumentException {
        checkState(!hasTasks(), "The nearline storage is busy and cannot be reconfigured.");

        mongoUrl = properties.get("mongoUrl");
        checkArgument(mongoUrl != null, "mongoUrl attribute is required");

        client = MongoClientProvider.get(new MongoClientURI(mongoUrl));
    }
}