/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.cxf.tracing.brave;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import com.github.kristofa.brave.Brave;
import com.github.kristofa.brave.http.SpanNameProvider;
import org.apache.cxf.helpers.CastUtils;
import org.apache.cxf.message.Message;
import org.apache.cxf.message.MessageUtils;
import org.apache.cxf.phase.PhaseInterceptor;
public abstract class AbstractBraveInterceptor extends AbstractBraveProvider implements PhaseInterceptor<Message> {
private final String phase;
protected static class ParsedMessage {
private Message message;
ParsedMessage(Message message) {
this.message = message;
}
String safeGet(String key) {
if (!message.containsKey(key)) {
return null;
}
Object value = message.get(key);
return (value instanceof String) ? value.toString() : null;
}
private String getUriSt() {
String uri = safeGet(Message.REQUEST_URL);
if (uri == null) {
String address = safeGet(Message.ENDPOINT_ADDRESS);
uri = safeGet(Message.REQUEST_URI);
if (uri != null && uri.startsWith("/")) {
if (address != null && !address.startsWith(uri)) {
if (address.endsWith("/") && address.length() > 1) {
address = address.substring(0, address.length());
}
uri = address + uri;
}
} else {
uri = address;
}
}
String query = safeGet(Message.QUERY_STRING);
if (query != null) {
return uri + "?" + query;
} else {
return uri;
}
}
URI getUri() {
try {
String uriSt = getUriSt();
return uriSt != null ? new URI(uriSt) : new URI("");
} catch (URISyntaxException e) {
throw new RuntimeException(e.getMessage(), e);
}
}
Message getEffectiveMessage() {
boolean isRequestor = MessageUtils.isRequestor(message);
boolean isOutbound = MessageUtils.isOutbound(message);
if (isRequestor) {
return isOutbound ? message : message.getExchange().getOutMessage();
} else {
return isOutbound ? message.getExchange().getInMessage() : message;
}
}
Map<String, List<String>> getHeaders() {
Map<String, List<String>> headers = CastUtils.cast((Map<?, ?>)message.get(Message.PROTOCOL_HEADERS));
if (headers == null) {
return Collections.emptyMap();
}
return headers;
}
void addHeader(String key, String value) {
Map<String, List<String>> headers = CastUtils.cast((Map<?, ?>)message.get(Message.PROTOCOL_HEADERS));
if (headers == null) {
headers = new HashMap<>();
message.put(Message.PROTOCOL_HEADERS, headers);
}
headers.put(key, Arrays.asList(value));
}
String getHttpMethod() {
ParsedMessage eMessage = new ParsedMessage(getEffectiveMessage());
return eMessage.safeGet(Message.HTTP_REQUEST_METHOD);
}
}
protected AbstractBraveInterceptor(String phase, Brave brave, SpanNameProvider spanNameProvider) {
super(brave, spanNameProvider);
this.phase = phase;
}
@Override
public Set<String> getAfter() {
return Collections.emptySet();
}
@Override
public Set<String> getBefore() {
return Collections.emptySet();
}
@Override
public String getId() {
return getClass().getName();
}
@Override
public String getPhase() {
return phase;
}
@Override
public Collection<PhaseInterceptor<? extends Message>> getAdditionalInterceptors() {
return null;
}
@Override
public void handleFault(Message message) {
}
}