fm.last.peyote.cacti.JmxInputProcessor.java Source code

Introduction

Here is the source code for fm.last.peyote.cacti.JmxInputProcessor.java

Source

/*
 * Copyright 2013 Last.fm
 *
 *  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 fm.last.peyote.cacti;

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.List;

import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.fluent.Request;
import org.springframework.stereotype.Component;

import com.google.common.collect.Lists;

@Component
public class JmxInputProcessor {

    public InputData getInputDataFromJmx(String name, String url) throws ClientProtocolException, IOException {
        InputData result = new InputData();
        result.setName(name);
        result.setUrl(convertToCactiUrl(url));
        result.setCactiDataItems(fetchCactiDataItemsFromUrl(url));
        return result;
    }

    private String convertToCactiUrl(String urlString) throws MalformedURLException {
        URL url = new URL(urlString);
        return url.getProtocol() + "://<host>:" + url.getPort() + url.getPath();
    }

    private String[] fetchCactiDataItemsFromUrl(String url) throws ClientProtocolException, IOException {
        String content = Request.Get(url).execute().returnContent().asString();
        String[] keyValues = content.split(" ");
        List<String> result = Lists.newArrayList();
        for (String keyValue : keyValues) {
            result.add(keyValue.split(":")[0]);
        }
        return result.toArray(new String[0]);
    }

}