Copyright 2014 Netflix, Inc.
Licensed 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.
/**
 * Copyright 2014 Netflix, Inc.
 *
 * Licensed 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 com.netflix.config;

import com.netflix.config.sources.URLConfigurationSource;

A DynamicConfiguration that uses a URLConfigurationSource and FixedDelayPollingScheduler. 
Author:
awang/**
 * A {@link DynamicConfiguration} that uses a {@link URLConfigurationSource} and 
 * {@link FixedDelayPollingScheduler}.
 * 
 * @author awang
 *
 */
public class DynamicURLConfiguration extends DynamicConfiguration {
        
    
Create an instance with default URLConfigurationSource() and FixedDelayPollingScheduler() and start polling the source if there is any URLs available for polling. /**
     * Create an instance with default {@link URLConfigurationSource#URLConfigurationSource()} and 
     * {@link FixedDelayPollingScheduler#FixedDelayPollingScheduler()} and start polling the source
     * if there is any URLs available for polling.
     */
    public DynamicURLConfiguration() {
        URLConfigurationSource source = new URLConfigurationSource();
        if (source.getConfigUrls() != null && source.getConfigUrls().size() > 0) {
            startPolling(source, new FixedDelayPollingScheduler());
        }
    }

    
Create an instance and start polling the source.
Params:
initialDelayMillis – initial delay in milliseconds used by FixedDelayPollingScheduler
delayMillis – delay interval in milliseconds used by FixedDelayPollingScheduler
ignoreDeletesFromSource – whether the scheduler should ignore deletes of properties from configuration source when
applying the polling result to a configuration.
urls – The set of URLs to be polled by URLConfigurationSource/**
     * Create an instance and start polling the source.
     * 
     * @param initialDelayMillis initial delay in milliseconds used by {@link FixedDelayPollingScheduler}
     * @param delayMillis delay interval in milliseconds used by {@link FixedDelayPollingScheduler}
     * @param ignoreDeletesFromSource whether the scheduler should ignore deletes of properties from configuration source when
     * applying the polling result to a configuration.
     * @param urls The set of URLs to be polled by {@link URLConfigurationSource}
     */
    public DynamicURLConfiguration(int initialDelayMillis, int delayMillis, boolean ignoreDeletesFromSource, 
            String... urls) {
        super(new URLConfigurationSource(urls),
                new FixedDelayPollingScheduler(initialDelayMillis, delayMillis, ignoreDeletesFromSource));
    }    
}