Moving metric logger from jive-utils to its own repo and upgraded to …

…log4j 2.1

.gitignore

@@ -0,0 +1,20 @@
+/.bash*
+/.j-log
+/.ssh/
+/.m2/
+/.vim*
+*.iml
+*.ipr
+*.iws
+.repository/
+.vagrant
+*.log
+.idea/
+.classpath
+.settings/
+.project
+*.class
+nbactions.xml
+target/
+.checkstyle
+.checkstyle-cachefile

code/com/jivesoftware/os/mlogger/core/pom.xml

@@ -0,0 +1,75 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>com.jivesoftware.os.mlogger.inheritance.poms</groupId>
+        <artifactId>shared-lib-build-management</artifactId>
+        <version>0.1-SNAPSHOT</version>
+        <relativePath>../inheritance-poms/shared-lib-build-management/pom.xml</relativePath>
+    </parent>
+    <groupId>com.jivesoftware.os.mlogger</groupId>
+    <artifactId>core</artifactId>
+    <properties>
+        <module.type>shared_lib</module.type>
+    </properties>
+
+    <dependencies>
+
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-api</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-core</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-math</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>commons-lang</groupId>
+            <artifactId>commons-lang</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.testng</groupId>
+            <artifactId>testng</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.powermock</groupId>
+            <artifactId>powermock-api-mockito</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.powermock</groupId>
+            <artifactId>powermock-core</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.powermock</groupId>
+            <artifactId>powermock-module-testng</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.powermock</groupId>
+            <artifactId>powermock-module-testng-common</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-all</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>

code/com/jivesoftware/os/mlogger/core/src/main/java/com/jivesoftware/os/mlogger/core/AbsoluteTimeDateFormat.java

@@ -0,0 +1,128 @@
+package com.jivesoftware.os.mlogger.core;
+
+import java.text.DateFormat;
+import java.text.FieldPosition;
+import java.text.ParsePosition;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.TimeZone;
+
+// Source ripped from log4j 1.2.16
+/**
+ Formats a {@link java.util.Date} in the format "HH:mm:ss,SSS" for example,
+ "15:49:37,459".
+
+ @author Ceki Gülcü
+ @author Andrew Vajoczki
+
+ @since 0.7.5
+ */
+public class AbsoluteTimeDateFormat extends DateFormat {
+
+    private static final long serialVersionUID = -388856345976723342L;
+
+    /**
+     String constant used to specify {@link
+     org.apache.log4j.helpers.AbsoluteTimeDateFormat} in layouts. Current
+     value is <b>ABSOLUTE</b>.  */
+    public final static String ABS_TIME_DATE_FORMAT = "ABSOLUTE";
+
+    /**
+     String constant used to specify {@link
+     org.apache.log4j.helpers.DateTimeDateFormat} in layouts.  Current
+     value is <b>DATE</b>.
+     */
+    public final static String DATE_AND_TIME_DATE_FORMAT = "DATE";
+
+    /**
+     String constant used to specify {@link
+     org.apache.log4j.helpers.ISO8601DateFormat} in layouts. Current
+     value is <b>ISO8601</b>.
+     */
+    public final static String ISO8601_DATE_FORMAT = "ISO8601";
+
+    public
+        AbsoluteTimeDateFormat() {
+        setCalendar(Calendar.getInstance());
+    }
+
+    public
+        AbsoluteTimeDateFormat(TimeZone timeZone) {
+        setCalendar(Calendar.getInstance(timeZone));
+    }
+
+    private static long previousTime;
+    private static char[] previousTimeWithoutMillis = new char[9]; // "HH:mm:ss."
+
+    /**
+     Appends to <code>sbuf</code> the time in the format
+     "HH:mm:ss,SSS" for example, "15:49:37,459"
+
+     @param date the date to format
+     @param sbuf the string buffer to write to
+     @param fieldPosition remains untouched
+     */
+    public
+        StringBuffer format(Date date, StringBuffer sbuf,
+            FieldPosition fieldPosition) {
+
+        long now = date.getTime();
+        int millis = (int) (now % 1000);
+
+        if ((now - millis) != previousTime || previousTimeWithoutMillis[0] == 0) {
+            // We reach this point at most once per second
+            // across all threads instead of each time format()
+            // is called. This saves considerable CPU time.
+
+            calendar.setTime(date);
+
+            int start = sbuf.length();
+
+            int hour = calendar.get(Calendar.HOUR_OF_DAY);
+            if (hour < 10) {
+                sbuf.append('0');
+            }
+            sbuf.append(hour);
+            sbuf.append(':');
+
+            int mins = calendar.get(Calendar.MINUTE);
+            if (mins < 10) {
+                sbuf.append('0');
+            }
+            sbuf.append(mins);
+            sbuf.append(':');
+
+            int secs = calendar.get(Calendar.SECOND);
+            if (secs < 10) {
+                sbuf.append('0');
+            }
+            sbuf.append(secs);
+            sbuf.append(',');
+
+            // store the time string for next time to avoid recomputation
+            sbuf.getChars(start, sbuf.length(), previousTimeWithoutMillis, 0);
+
+            previousTime = now - millis;
+        } else {
+            sbuf.append(previousTimeWithoutMillis);
+        }
+
+        if (millis < 100) {
+            sbuf.append('0');
+        }
+        if (millis < 10) {
+            sbuf.append('0');
+        }
+
+        sbuf.append(millis);
+        return sbuf;
+    }
+
+    /**
+     This method does not do anything but return <code>null</code>.
+     */
+    public
+        Date parse(String s, ParsePosition pos) {
+        return null;
+    }
+}

code/com/jivesoftware/os/mlogger/core/src/main/java/com/jivesoftware/os/mlogger/core/AtomicCounter.java

@@ -0,0 +1,93 @@
+/*
+ * Copyright 2013 Jive Software, 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.jivesoftware.os.mlogger.core;
+
+import java.util.concurrent.atomic.AtomicLong;
+
+public final class AtomicCounter implements AtomicCounterMXBean {
+
+    private ValueType type;
+    private AtomicLong value = new AtomicLong(0L);
+
+    public AtomicCounter() {
+    }
+
+    public AtomicCounter(ValueType type) {
+        this.type = type;
+    }
+
+    public String toJsonString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("{");
+        sb.append("\"type\":\"");
+        sb.append(type.name());
+        sb.append("\",");
+        sb.append("\"value\":");
+        sb.append(value.get());
+        sb.append("}");
+        return sb.toString();
+    }
+
+    public ValueType getValueType() {
+        return type;
+    }
+
+    public void setType(ValueType type) {
+        this.type = type;
+    }
+
+    @Override
+    public long getValue() {
+        return value.get();
+    }
+
+    public void setValue(long value) {
+        this.value.set(value);
+    }
+
+    @Override
+    public String getType() {
+        return type.name();
+    }
+
+    public void reset() {
+        this.value.set(0);
+    }
+
+    public void inc() {
+        value.incrementAndGet();
+    }
+
+    public void inc(long amount) {
+        value.addAndGet(amount);
+    }
+
+    public void dec() {
+        value.decrementAndGet();
+    }
+
+    public void dec(long amount) {
+        value.addAndGet(-amount);
+    }
+
+    public void set(long value) {
+        this.value.set(value);
+    }
+
+    public long getCount() {
+        return value.get();
+    }
+}

code/com/jivesoftware/os/mlogger/core/src/main/java/com/jivesoftware/os/mlogger/core/AtomicCounterMXBean.java

@@ -0,0 +1,23 @@
+/*
+ * Copyright 2013 Jive Software, 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.jivesoftware.os.mlogger.core;
+
+public interface AtomicCounterMXBean {
+
+    public long getValue();
+
+    public String getType();
+}

code/com/jivesoftware/os/mlogger/core/src/main/java/com/jivesoftware/os/mlogger/core/CallMonitor.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2013 Jive Software, 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.jivesoftware.os.mlogger.core;
+
+import java.util.concurrent.Callable;
+
+/**
+ * Interface to generalize tracking info around a method call.
+ *
+ * @author jonathan
+ */
+public interface CallMonitor {
+
+    public <V> V call(Callable<V> callable) throws Exception;
+}