| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.ambari.metrics.core.timeline.sink; |
| |
| import static org.apache.ambari.metrics.core.timeline.TimelineMetricConfiguration.TIMELINE_METRICS_CACHE_COMMIT_INTERVAL; |
| |
| import java.io.BufferedReader; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.OutputStream; |
| import java.net.HttpURLConnection; |
| import java.net.URL; |
| import java.security.KeyStore; |
| import java.util.Collection; |
| |
| import javax.net.ssl.HttpsURLConnection; |
| import javax.net.ssl.SSLContext; |
| import javax.net.ssl.SSLSocketFactory; |
| import javax.net.ssl.TrustManagerFactory; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.metrics2.sink.timeline.TimelineMetrics; |
| import org.apache.ambari.metrics.core.timeline.TimelineMetricConfiguration; |
| import org.apache.ambari.metrics.core.timeline.source.InternalSourceProvider; |
| import org.apache.http.client.utils.URIBuilder; |
| import org.codehaus.jackson.map.AnnotationIntrospector; |
| import org.codehaus.jackson.map.ObjectMapper; |
| import org.codehaus.jackson.map.annotate.JsonSerialize; |
| import org.codehaus.jackson.xc.JaxbAnnotationIntrospector; |
| |
| public class HttpSinkProvider implements ExternalSinkProvider { |
| private static final Log LOG = LogFactory.getLog(HttpSinkProvider.class); |
| TimelineMetricConfiguration conf = TimelineMetricConfiguration.getInstance(); |
| |
| private String connectUrl; |
| private SSLSocketFactory sslSocketFactory; |
| protected static ObjectMapper mapper; |
| |
| static { |
| mapper = new ObjectMapper(); |
| AnnotationIntrospector introspector = new JaxbAnnotationIntrospector(); |
| mapper.setAnnotationIntrospector(introspector); |
| mapper.getSerializationConfig() |
| .withSerializationInclusion(JsonSerialize.Inclusion.NON_NULL); |
| } |
| |
| public HttpSinkProvider() { |
| Configuration config; |
| try { |
| config = conf.getMetricsConf(); |
| } catch (Exception e) { |
| throw new ExceptionInInitializerError("Unable to read configuration for sink."); |
| } |
| String protocol = config.get("timeline.metrics.service.external.http.sink.protocol", "http"); |
| String host = config.get("timeline.metrics.service.external.http.sink.host", "localhost"); |
| String port = config.get("timeline.metrics.service.external.http.sink.port", "6189"); |
| |
| if (protocol.contains("https")) { |
| loadTruststore( |
| config.getTrimmed("timeline.metrics.service.external.http.sink.truststore.path"), |
| config.getTrimmed("timeline.metrics.service.external.http.sink.truststore.type"), |
| config.getTrimmed("timeline.metrics.service.external.http.sink.truststore.password") |
| ); |
| } |
| |
| URIBuilder uriBuilder = new URIBuilder(); |
| uriBuilder.setScheme(protocol); |
| uriBuilder.setHost(host); |
| uriBuilder.setPort(Integer.parseInt(port)); |
| connectUrl = uriBuilder.toString(); |
| } |
| |
| @Override |
| public ExternalMetricsSink getExternalMetricsSink(InternalSourceProvider.SOURCE_NAME sourceName) { |
| return new DefaultHttpMetricsSink(); |
| } |
| |
| protected HttpURLConnection getConnection(String spec) throws IOException { |
| return (HttpURLConnection) new URL(spec).openConnection(); |
| } |
| |
| // Get an ssl connection |
| protected HttpsURLConnection getSSLConnection(String spec) |
| throws IOException, IllegalStateException { |
| |
| HttpsURLConnection connection = (HttpsURLConnection) (new URL(spec).openConnection()); |
| connection.setSSLSocketFactory(sslSocketFactory); |
| return connection; |
| } |
| |
| protected void loadTruststore(String trustStorePath, String trustStoreType, |
| String trustStorePassword) { |
| if (sslSocketFactory == null) { |
| if (trustStorePath == null || trustStorePassword == null) { |
| String msg = "Can't load TrustStore. Truststore path or password is not set."; |
| LOG.error(msg); |
| throw new IllegalStateException(msg); |
| } |
| FileInputStream in = null; |
| try { |
| in = new FileInputStream(new File(trustStorePath)); |
| KeyStore store = KeyStore.getInstance(trustStoreType == null ? |
| KeyStore.getDefaultType() : trustStoreType); |
| store.load(in, trustStorePassword.toCharArray()); |
| TrustManagerFactory tmf = TrustManagerFactory |
| .getInstance(TrustManagerFactory.getDefaultAlgorithm()); |
| tmf.init(store); |
| SSLContext context = SSLContext.getInstance("TLS"); |
| context.init(null, tmf.getTrustManagers(), null); |
| sslSocketFactory = context.getSocketFactory(); |
| } catch (Exception e) { |
| LOG.error("Unable to load TrustStore", e); |
| } finally { |
| if (in != null) { |
| try { |
| in.close(); |
| } catch (IOException e) { |
| LOG.error("Unable to load TrustStore", e); |
| } |
| } |
| } |
| } |
| } |
| |
| class DefaultHttpMetricsSink implements ExternalMetricsSink { |
| |
| @Override |
| public int getSinkTimeOutSeconds() { |
| try { |
| return conf.getMetricsConf().getInt("timeline.metrics.external.sink.http.timeout.seconds", 10); |
| } catch (Exception e) { |
| return 10; |
| } |
| } |
| |
| @Override |
| public int getFlushSeconds() { |
| try { |
| return conf.getMetricsConf().getInt(TIMELINE_METRICS_CACHE_COMMIT_INTERVAL, 3); |
| } catch (Exception e) { |
| LOG.warn("Cannot read cache commit interval."); |
| } |
| return 3; |
| } |
| |
| /** |
| * Cleans up and closes an input stream |
| * see http://docs.oracle.com/javase/6/docs/technotes/guides/net/http-keepalive.html |
| * @param is the InputStream to clean up |
| * @return string read from the InputStream |
| * @throws IOException |
| */ |
| protected String cleanupInputStream(InputStream is) throws IOException { |
| StringBuilder sb = new StringBuilder(); |
| if (is != null) { |
| try ( |
| InputStreamReader isr = new InputStreamReader(is); |
| BufferedReader br = new BufferedReader(isr) |
| ) { |
| // read the response body |
| String line; |
| while ((line = br.readLine()) != null) { |
| if (LOG.isDebugEnabled()) { |
| sb.append(line); |
| } |
| } |
| } finally { |
| is.close(); |
| } |
| } |
| return sb.toString(); |
| } |
| |
| @Override |
| public void sinkMetricData(Collection<TimelineMetrics> metrics) { |
| HttpURLConnection connection = null; |
| try { |
| connection = connectUrl.startsWith("https") ? getSSLConnection(connectUrl) : getConnection(connectUrl); |
| |
| connection.setRequestMethod("POST"); |
| connection.setRequestProperty("Content-Type", "application/json"); |
| connection.setRequestProperty("Connection", "Keep-Alive"); |
| connection.setConnectTimeout(getSinkTimeOutSeconds()); |
| connection.setReadTimeout(getSinkTimeOutSeconds()); |
| connection.setDoOutput(true); |
| |
| if (metrics != null) { |
| String jsonData = mapper.writeValueAsString(metrics); |
| try (OutputStream os = connection.getOutputStream()) { |
| os.write(jsonData.getBytes("UTF-8")); |
| } |
| } |
| |
| int statusCode = connection.getResponseCode(); |
| |
| if (statusCode != 200) { |
| LOG.info("Unable to POST metrics to external sink, " + connectUrl + |
| ", statusCode = " + statusCode); |
| } else { |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("Metrics posted to external sink " + connectUrl); |
| } |
| } |
| cleanupInputStream(connection.getInputStream()); |
| |
| } catch (IOException io) { |
| LOG.warn("Unable to sink data to external system.", io); |
| } |
| } |
| } |
| } |