@@ -0,0 +1,2078 @@
+/*%0A * Licensed to the Apache Software Foundation (ASF) under one%0A * or more contributor license agreements. See the NOTICE file%0A * distributed with this work for additional information%0A * regarding copyright ownership. The SF licenses this file%0A * to you under the Apache License, Version 2.0 (the%0A * %22License%22); you may not use this file except in compliance%0A * with the License. You may obtain a copy of the License at%0A *%0A *     http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing,%0A * software distributed under the License is distributed on an%0A * %22AS IS%22 BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY%0A * KIND, either express or implied. See the License for the%0A * specific language governing permissions and limitations under the License.%0A */%0Apackage org.apache.sling.metrics.impl;%0A%0Aimport javax.annotation.Nonnull;%0A%0Aimport org.apache.sling.metrics.api.MetricsUtil;%0Aimport org.objectweb.asm.MethodVisitor;%0Aimport org.objectweb.asm.Opcodes;%0Aimport org.objectweb.asm.commons.AdviceAdapter;%0A%0A/**%0A * Adapts method calls wrapping the byte code of the method with calls to a meter.%0A */%0Apublic class APITimerCounterAdapter extends AdviceAdapter %7B%0A%0A%0A    private static final String METRICS_UTIL_CL = MetricsUtil.class.getName().replace('.', '/');%0A    private static final String METRICS_UTIL_DESC = %22(Ljava/lang/String;)V;%22;%0A    private String timerName;%0A%0A    public APITimerCounterAdapter(@Nonnull MethodVisitor mv, int access, @Nonnull String name, @Nonnull String descriptor, @Nonnull String timerName) %7B%0A        super(Opcodes.ASM4, mv, access, name, descriptor);%0A        this.timerName = timerName;%0A    %7D%0A%0A    @Override%0A    protected void onMethodEnter() %7B%0A        mv.visitLdcInsn(timerName);%0A        mv.visitMethodInsn(Opcodes.INVOKESTATIC, METRICS_UTIL_CL, %22startAPICount%22, METRICS_UTIL_DESC, false);%0A    %7D%0A%0A    @Override%0A    protected void onMethodExit(int opcode) %7B%0A        mv.visitLdcInsn(timerName);%0A        mv.visitMethodInsn(Opcodes.INVOKESTATIC, METRICS_UTIL_CL, %22endAPICount%22, METRICS_UTIL_DESC, false);%0A    %7D%0A%0A%7D%0A

Add APITimerCounter which only counts the first call within a thread to an API