/*
* Copyright 2014 NAVER Corp.
*
* 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.navercorp.pinpoint.plugin.okhttp.interceptor;
import com.navercorp.pinpoint.bootstrap.context.*;
import com.navercorp.pinpoint.bootstrap.interceptor.AroundInterceptor;
import com.navercorp.pinpoint.bootstrap.interceptor.annotation.Scope;
import com.navercorp.pinpoint.bootstrap.interceptor.scope.ExecutionPolicy;
import com.navercorp.pinpoint.bootstrap.interceptor.scope.InterceptorScope;
import com.navercorp.pinpoint.bootstrap.interceptor.scope.InterceptorScopeInvocation;
import com.navercorp.pinpoint.bootstrap.logging.PLogger;
import com.navercorp.pinpoint.bootstrap.logging.PLoggerFactory;
import com.navercorp.pinpoint.bootstrap.sampler.SamplingFlagUtils;
import com.navercorp.pinpoint.plugin.okhttp.*;
import com.squareup.okhttp.HttpUrl;
import com.squareup.okhttp.Request;
/**
* @author jaehong.kim
*/
@Scope(value = OkHttpConstants.SEND_REQUEST_SCOPE, executionPolicy = ExecutionPolicy.INTERNAL)
public class RequestBuilderBuildMethodInterceptor implements AroundInterceptor {
private final PLogger logger = PLoggerFactory.getLogger(this.getClass());
private final boolean isDebug = logger.isDebugEnabled();
private TraceContext traceContext;
private MethodDescriptor methodDescriptor;
private InterceptorScope interceptorScope;
public RequestBuilderBuildMethodInterceptor(TraceContext traceContext, MethodDescriptor methodDescriptor, InterceptorScope interceptorScope) {
this.traceContext = traceContext;
this.methodDescriptor = methodDescriptor;
this.interceptorScope = interceptorScope;
}
@Override
public void before(Object target, Object[] args) {
if (isDebug) {
logger.beforeInterceptor(target, args);
}
final Trace trace = traceContext.currentRawTraceObject();
if (trace == null) {
return;
}
try {
if(!(target instanceof Request.Builder)) {
return;
}
final Request.Builder builder = ((Request.Builder) target);
if (!trace.canSampled()) {
if (isDebug) {
logger.debug("set Sampling flag=false");
}
((Request.Builder) target).header(Header.HTTP_SAMPLED.toString(), SamplingFlagUtils.SAMPLING_RATE_FALSE);
return;
}
final InterceptorScopeInvocation invocation = interceptorScope.getCurrentInvocation();
if (invocation == null || invocation.getAttachment() == null || !(invocation.getAttachment() instanceof TraceId)) {
logger.debug("Invalid interceptor scope invocation. {}", invocation);
return;
}
final TraceId nextId = (TraceId) invocation.getAttachment();
builder.header(Header.HTTP_TRACE_ID.toString(), nextId.getTransactionId());
builder.header(Header.HTTP_SPAN_ID.toString(), String.valueOf(nextId.getSpanId()));
builder.header(Header.HTTP_PARENT_SPAN_ID.toString(), String.valueOf(nextId.getParentSpanId()));
builder.header(Header.HTTP_FLAGS.toString(), String.valueOf(nextId.getFlags()));
builder.header(Header.HTTP_PARENT_APPLICATION_NAME.toString(), traceContext.getApplicationName());
builder.header(Header.HTTP_PARENT_APPLICATION_TYPE.toString(), Short.toString(traceContext.getServerTypeCode()));
if (target instanceof HttpUrlGetter) {
final HttpUrl url = ((HttpUrlGetter) target)._$PINPOINT$_getHttpUrl();
if (url != null) {
final String endpoint = getDestinationId(url);
logger.debug("Set HTTP_HOST {}", endpoint);
builder.header(Header.HTTP_HOST.toString(), endpoint);
}
}
} catch (Throwable t) {
logger.warn("Failed to BEFORE process. {}", t.getMessage(), t);
}
}
private String getDestinationId(HttpUrl httpUrl) {
if (httpUrl == null || httpUrl.host() == null) {
return "UnknownHttpClient";
}
if (httpUrl.port() <= 0 || httpUrl.port() == HttpUrl.defaultPort(httpUrl.scheme())) {
return httpUrl.host();
}
final StringBuilder sb = new StringBuilder();
sb.append(httpUrl.host());
sb.append(':');
sb.append(httpUrl.port());
return sb.toString();
}
@Override
public void after(Object target, Object[] args, Object result, Throwable throwable) {
if (isDebug) {
logger.afterInterceptor(target, args);
}
}
}