/*
 * 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.chemistry.opencmis.inmemory;

import java.util.Map;

import org.apache.chemistry.opencmis.commons.exceptions.CmisRuntimeException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public final class ConfigurationSettings {

    private static final Logger LOG = LoggerFactory.getLogger(ConfigurationSettings.class.getName());

    private static ConfigurationSettings singleInstance;

    private final Map<String, String> parameters;

    private ConfigurationSettings(Map<String, String> parameters) {
        this.parameters = parameters;
    }

    private String getConfigurationValueIntern(String key) {
        return parameters.get(key);
    }

    public static String getConfigurationValueAsString(String key) {
        if (null == singleInstance) {
            LOG.error("ConfigurationSettings are not initialized. Initialize before reading values");
            throw new CmisRuntimeException("ConfigurationSettings are not initialized.");
        }
        return singleInstance.getConfigurationValueIntern(key);
    }

    public static Long getConfigurationValueAsLong(String key) {
        String str = getConfigurationValueAsString(key);
        if (null != str) {
            return Long.valueOf(str);
        } else {
            return null;
        }
    }

    public static void init(Map<String, String> parameters) {
        singleInstance = new ConfigurationSettings(parameters);
    }

    public static Map<String, String> getParameters() {
        return singleInstance.parameters;
    }
}