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/**
* Copyright 2016 Netflix, 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 rx.internal.operators;
import rx.Observable.OnSubscribe;
import rx.Subscriber;
import rx.exceptions.AssemblyStackTraceException;
/**
* Captures the current stack when it is instantiated, makes
* it available through a field and attaches it to all
* passing exception.
*
* @param the value type
*/
public final class OnSubscribeOnAssembly implements OnSubscribe {
final OnSubscribe source;
final String stacktrace;
/**
* If set to true, the creation of PublisherOnAssembly will capture the raw
* stacktrace instead of the sanitized version.
*/
public static volatile boolean fullStackTrace;
public OnSubscribeOnAssembly(OnSubscribe source) {
this.source = source;
this.stacktrace = createStacktrace();
}
static String createStacktrace() {
StackTraceElement[] stacktraceElements = Thread.currentThread().getStackTrace();
StringBuilder sb = new StringBuilder("Assembly trace:");
for (StackTraceElement e : stacktraceElements) {
String row = e.toString();
if (!fullStackTrace) {
if (e.getLineNumber() <= 1) {
continue;
}
if (row.contains("RxJavaHooks.")) {
continue;
}
if (row.contains("OnSubscribeOnAssembly")) {
continue;
}
if (row.contains(".junit.runner")) {
continue;
}
if (row.contains(".junit4.runner")) {
continue;
}
if (row.contains(".junit.internal")) {
continue;
}
if (row.contains("sun.reflect")) {
continue;
}
if (row.contains("java.lang.Thread.")) {
continue;
}
if (row.contains("ThreadPoolExecutor")) {
continue;
}
if (row.contains("org.apache.catalina.")) {
continue;
}
if (row.contains("org.apache.tomcat.")) {
continue;
}
}
sb.append("\n at ").append(row);
}
return sb.append("\nOriginal exception:").toString();
}
@Override
public void call(Subscriber t) {
source.call(new OnAssemblySubscriber(t, stacktrace));
}
static final class OnAssemblySubscriber extends Subscriber {
final Subscriber actual;
final String stacktrace;
public OnAssemblySubscriber(Subscriber actual, String stacktrace) {
super(actual);
this.actual = actual;
this.stacktrace = stacktrace;
}
@Override
public void onCompleted() {
actual.onCompleted();
}
@Override
public void onError(Throwable e) {
new AssemblyStackTraceException(stacktrace).attachTo(e);
actual.onError(e);
}
@Override
public void onNext(T t) {
actual.onNext(t);
}
}
}