Share project "druid" into "http://code.alibabatech.com/svn/druid"

git-svn-id: http://code.alibabatech.com/svn/druid/trunk@2 b9813039-fb51-4c41-a8b9-e21c2acb5095
2023-03-04 19:17:16 +00:00 · 2011-05-11 01:35:21 +00:00
parent 239363b62e
commit 0e60b7d988
524 changed files with 67045 additions and 0 deletions
@@ -0,0 +1,177 @@
+/**
+ * Project: druid
+ * 
+ * File Created at 2010-12-2
+ * $Id$
+ * 
+ * Copyright 1999-2100 Alibaba.com Corporation Limited.
+ * All rights reserved.
+ *
+ * This software is the confidential and proprietary information of
+ * Alibaba Company. ("Confidential Information").  You shall not
+ * disclose such Confidential Information and shall use it only in
+ * accordance with the terms of the license agreement you entered into
+ * with Alibaba.com.
+ */
+package com.alibaba.druid.stat;
+
+import java.util.Date;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicLong;
+
+public class JdbcResultSetStat implements JdbcResultSetStatMBean {
+	private final AtomicInteger concurrentCount = new AtomicInteger();
+	private final AtomicInteger concurrentMax = new AtomicInteger();
+
+	private final AtomicLong count = new AtomicLong();
+	private final AtomicLong errorCount = new AtomicLong();
+
+	private final AtomicLong nanoTotal = new AtomicLong();
+	private Throwable lastError;
+	private long lastErrorTime;
+
+	private long lastSampleTime = 0;
+
+	private final AtomicLong fetchRowCounter = new AtomicLong(0); // 总共读取的行数
+	private final AtomicLong closeCount = new AtomicLong(0); // ResultSet打开的计数
+
+	public void reset() {
+		concurrentCount.set(0);
+		concurrentMax.set(0);
+		count.set(0);
+		errorCount.set(0);
+		nanoTotal.set(0);
+		lastError = null;
+		lastErrorTime = 0;
+		lastSampleTime = 0;
+	}
+
+	public void beforeOpen() {
+		int invoking = concurrentCount.incrementAndGet();
+
+		for (;;) {
+			int max = concurrentMax.get();
+			if (invoking > max) {
+				if (concurrentMax.compareAndSet(max, invoking)) {
+					break;
+				} else {
+					continue;
+				}
+			} else {
+				break;
+			}
+		}
+
+		count.incrementAndGet();
+		lastSampleTime = System.currentTimeMillis();
+	}
+
+	public long getErrorCount() {
+		return errorCount.get();
+	}
+
+	public int getRunningCount() {
+		return concurrentCount.get();
+	}
+
+	public int getConcurrentMax() {
+		return concurrentMax.get();
+	}
+
+	public long getOpenCount() {
+		return count.get();
+	}
+
+	public Date getLastConnectTime() {
+		if (lastSampleTime == 0) {
+			return null;
+		}
+
+		return new Date(lastSampleTime);
+	}
+
+	public long getNanoTotal() {
+		return nanoTotal.get();
+	}
+
+	public void afterClose(long nanoSpan) {
+		concurrentCount.decrementAndGet();
+
+		nanoTotal.addAndGet(nanoSpan);
+	}
+
+	public Throwable getLastError() {
+		return lastError;
+	}
+
+	public Date getLastErrorTime() {
+		if (lastErrorTime <= 0) {
+			return null;
+		}
+
+		return new Date(lastErrorTime);
+	}
+
+	public void error(Throwable error) {
+		errorCount.incrementAndGet();
+		lastError = error;
+		lastErrorTime = System.currentTimeMillis();
+	}
+
+	@Override
+	public long getHoldMillisTotal() {
+		return JdbcStatManager.getInstance().getResultSetStat().getNanoTotal() / (1000 * 1000);
+	}
+
+	@Override
+	public long getFetchRowCount() {
+		return fetchRowCounter.get();
+	}
+
+	@Override
+	public long getCloseCount() {
+		return closeCount.get();
+	}
+	
+	public void addFetchRowCount(long fetchCount) {
+		fetchRowCounter.addAndGet(fetchCount);
+	}
+
+	public void incrementCloseCounter() {
+		closeCount.incrementAndGet();
+	}
+
+	public static class Entry {
+		protected final long constructNano;
+		protected int cusorIndex = 0;
+		protected int fetchRowCount = 0;
+
+		public Entry() {
+			this.constructNano = System.nanoTime();
+		}
+
+		public void decrementCusorIndex() {
+			cusorIndex--;
+		}
+
+		public long getConstructNano() {
+			return constructNano;
+		}
+
+		public int getCusorIndex() {
+			return cusorIndex;
+		}
+
+		public void setCusorIndex(int cusorIndex) {
+			this.cusorIndex = cusorIndex;
+		}
+
+		public int getFetchRowCount() {
+			return fetchRowCount;
+		}
+
+		public void setFetchRowCount(int fetchRowCount) {
+			this.fetchRowCount = fetchRowCount;
+		}
+	}
+}