NEZ-762 OLP_exporter程序开发：olp_exporter 首次提交

2021-06-25 18:32:58 +08:00
parent ac4260e5f5
commit 991a81e068
20 changed files with 943 additions and 0 deletions
--- a/src/main/java/com/nis/util/TextFormatUtils.java
+++ b/src/main/java/com/nis/util/TextFormatUtils.java
@@ -0,0 +1,110 @@
+package com.nis.util;
+
+import java.io.IOException;
+import java.io.Writer;
+import java.util.List;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import io.prometheus.client.Collector;
+import io.prometheus.client.Collector.MetricFamilySamples;
+
+public class TextFormatUtils {
+	
+	private static final Logger logger = LoggerFactory.getLogger(TextFormatUtils.class);
+	
+	public static void write004(Writer writer, List<MetricFamilySamples> mfs) {
+		try {
+			String enter = "\n";
+	        for(MetricFamilySamples mfSample:mfs) {
+	            Collector.MetricFamilySamples metricFamilySamples = mfSample;
+	            writer.write("# HELP ");
+	            writer.write(metricFamilySamples.name);
+	            writer.write(' ');
+	            writeEscapedHelp(writer, metricFamilySamples.help);
+	            writer.write(enter);
+
+	            writer.write("# TYPE ");
+	            writer.write(metricFamilySamples.name);
+	            writer.write(' ');
+	            writer.write(typeString(metricFamilySamples.type));
+	            writer.write(enter);
+
+	            for (Collector.MetricFamilySamples.Sample sample: metricFamilySamples.samples) {
+		              writer.write(sample.name);
+		              if (sample.labelNames.size() > 0) {
+			                writer.write('{');
+			                for (int i = 0; i < sample.labelNames.size(); ++i) {
+				                  writer.write(sample.labelNames.get(i));
+				                  writer.write("=\"");
+				                  writeEscapedLabelValue(writer, sample.labelValues.get(i));
+				                  writer.write("\",");
+			                }
+			                writer.write('}');
+		              }
+		              writer.write(' ');
+		              writer.write(Collector.doubleToGoString(sample.value));
+		              if (sample.timestampMs != null){
+			                writer.write(' ');
+			                writer.write(sample.timestampMs.toString());
+		              }
+		              writer.write(enter);
+	            }
+	          }
+		}catch (Exception e) {
+			logger.error(e.getMessage());
+		}
+	}
+	
+	private static void writeEscapedHelp(Writer writer, String s) throws IOException {
+        for (int i = 0; i < s.length(); i++) {
+          char c = s.charAt(i);
+          switch (c) {
+            case '\\':
+              writer.append("\\\\");
+              break;
+            case '\n':
+              writer.append("\\n");
+              break;
+            default:
+              writer.append(c);
+          }
+        }
+    }
+    
+    private static String typeString(Collector.Type t) {
+        switch (t) {
+          case GAUGE:
+            return "gauge";
+          case COUNTER:
+            return "counter";
+          case SUMMARY:
+            return "summary";
+          case HISTOGRAM:
+            return "histogram";
+          default:
+            return "untyped";
+        }
+    }
+    
+    private static void writeEscapedLabelValue(Writer writer, String s) throws IOException {
+        for (int i = 0; i < s.length(); i++) {
+          char c = s.charAt(i);
+          switch (c) {
+            case '\\':
+              writer.append("\\\\");
+              break;
+            case '\"':
+              writer.append("\\\"");
+              break;
+            case '\n':
+              writer.append("\\n");
+              break;
+            default:
+              writer.append(c);
+          }
+        }
+    }
+
+}