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Use MainSupport as base for running Camel apache#9
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lburgazzoli committed Oct 3, 2019
1 parent 4123df5 commit d079568
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Expand Up @@ -10,6 +10,7 @@
* `camel-quarkus-jdbc`
* `camel-quarkus-log`
* `camel-quarkus-mail`
* `camel-quarkus-main`
* `camel-quarkus-microprofile-metrics`
* `camel-quarkus-netty-http`
* `camel-quarkus-paho`
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Expand Up @@ -16,44 +16,24 @@
*/
package org.apache.camel.quarkus.core.deployment;

import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Properties;
import java.util.Set;
import java.util.stream.Stream;
import javax.inject.Inject;

import io.quarkus.arc.deployment.AdditionalBeanBuildItem;
import io.quarkus.arc.deployment.BeanContainerBuildItem;
import io.quarkus.arc.deployment.BeanContainerListenerBuildItem;
import io.quarkus.arc.deployment.RuntimeBeanBuildItem;
import io.quarkus.deployment.annotations.BuildProducer;
import io.quarkus.deployment.annotations.BuildStep;
import io.quarkus.deployment.annotations.ExecutionTime;
import io.quarkus.deployment.annotations.Record;
import io.quarkus.deployment.builditem.ApplicationArchivesBuildItem;
import io.quarkus.deployment.builditem.CombinedIndexBuildItem;
import io.quarkus.deployment.builditem.ServiceStartBuildItem;
import io.quarkus.deployment.builditem.ShutdownContextBuildItem;
import io.quarkus.runtime.RuntimeValue;
import org.apache.camel.RoutesBuilder;
import org.apache.camel.builder.AdviceWithRouteBuilder;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.CamelContext;
import org.apache.camel.quarkus.core.runtime.CamelConfig;
import org.apache.camel.quarkus.core.runtime.CamelConfig.BuildTime;
import org.apache.camel.quarkus.core.runtime.CamelProducers;
import org.apache.camel.quarkus.core.runtime.CamelRecorder;
import org.apache.camel.quarkus.core.runtime.CamelRuntime;
import org.apache.camel.quarkus.core.runtime.support.RuntimeRegistry;
import org.jboss.jandex.ClassInfo;
import org.jboss.jandex.DotName;
import org.apache.camel.spi.Registry;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

Expand All @@ -67,151 +47,57 @@ class BuildProcessor {

@Record(ExecutionTime.STATIC_INIT)
@BuildStep
CamelRuntimeBuildItem create(
CamelRegistryBuildItem registry(
CamelRecorder recorder,
List<CamelBeanBuildItem> camelBeans,
BuildProducer<RuntimeBeanBuildItem> runtimeBeans) {
List<CamelBeanBuildItem> registryItems) {

RuntimeRegistry registry = new RuntimeRegistry();
RuntimeValue<CamelRuntime> camelRuntime = recorder.create(registry);
RuntimeValue<Registry> registry = recorder.createRegistry();

getBuildTimeRouteBuilderClasses().forEach(
b -> recorder.addBuilder(camelRuntime, b)
);

services().filter(
si -> camelBeans.stream().noneMatch(
CamelSupport.services(applicationArchivesBuildItem).filter(
si -> registryItems.stream().noneMatch(
c -> Objects.equals(si.name, c.getName()) && c.getType().isAssignableFrom(si.type)
)
).forEach(
si -> {
LOGGER.debug("Binding camel service {} with type {}", si.name, si.type);

recorder.bind(
camelRuntime,
registry,
si.name,
si.type
);
}
);

for (CamelBeanBuildItem item: camelBeans) {
for (CamelBeanBuildItem item: registryItems) {
LOGGER.debug("Binding item with name: {}, type {}", item.getName(), item.getType());

recorder.bind(
camelRuntime,
registry,
item.getName(),
item.getType(),
item.getValue()
);
}

runtimeBeans.produce(RuntimeBeanBuildItem.builder(CamelRuntime.class).setRuntimeValue(camelRuntime).build());

return new CamelRuntimeBuildItem(camelRuntime);
return new CamelRegistryBuildItem(registry);
}

@Record(ExecutionTime.STATIC_INIT)
@BuildStep
AdditionalBeanBuildItem createProducers(
CamelRuntimeBuildItem runtime,
CamelContextBuildItem context(
CamelRecorder recorder,
BuildProducer<BeanContainerListenerBuildItem> listeners) {

listeners.produce(new BeanContainerListenerBuildItem(recorder.initRuntimeInjection(runtime.getRuntime())));

return AdditionalBeanBuildItem.unremovableOf(CamelProducers.class);
}

@Record(ExecutionTime.STATIC_INIT)
@BuildStep
void init(
// TODO: keep this field as we need to be sure ArC is initialized before starting events
// We need to re-evaluate the need of fire events from context once doing
// https://github.com/apache/camel-quarkus/issues/9
CamelRegistryBuildItem registry,
// TODO: this add a dependency on Arc
BeanContainerBuildItem beanContainerBuildItem,
CamelRuntimeBuildItem runtime,
CamelRecorder recorder,
BuildTime buildTimeConfig) {
CamelConfig.BuildTime buildTimeConfig) {

recorder.init(runtime.getRuntime(), buildTimeConfig);
RuntimeValue<CamelContext> context = recorder.createContext(registry.getRegistry(), beanContainerBuildItem.getValue(), buildTimeConfig);
return new CamelContextBuildItem(context);
}

@Record(ExecutionTime.RUNTIME_INIT)
@BuildStep
void start(
CamelRecorder recorder,
CamelRuntimeBuildItem runtime,
ShutdownContextBuildItem shutdown,
// TODO: keep this list as placeholder to ensure the ArC container is fully
// started before starting the runtime
List<ServiceStartBuildItem> startList,
CamelConfig.Runtime runtimeConfig)
throws Exception {

recorder.start(shutdown, runtime.getRuntime(), runtimeConfig);
}

protected Stream<String> getBuildTimeRouteBuilderClasses() {
Set<ClassInfo> allKnownImplementors = new HashSet<>();
allKnownImplementors.addAll(
combinedIndexBuildItem.getIndex().getAllKnownImplementors(DotName.createSimple(RoutesBuilder.class.getName())));
allKnownImplementors.addAll(
combinedIndexBuildItem.getIndex().getAllKnownSubclasses(DotName.createSimple(RouteBuilder.class.getName())));
allKnownImplementors.addAll(combinedIndexBuildItem.getIndex()
.getAllKnownSubclasses(DotName.createSimple(AdviceWithRouteBuilder.class.getName())));

return allKnownImplementors
.stream()
.filter(CamelSupport::isConcrete)
.filter(CamelSupport::isPublic)
.map(ClassInfo::toString);
}

protected Stream<ServiceInfo> services() {
return CamelSupport.resources(applicationArchivesBuildItem, CamelSupport.CAMEL_SERVICE_BASE_PATH)
.map(this::services)
.flatMap(Collection::stream);
}

protected List<ServiceInfo> services(Path p) {
List<ServiceInfo> answer = new ArrayList<>();

String name = p.getFileName().toString();
try (InputStream is = Files.newInputStream(p)) {
Properties props = new Properties();
props.load(is);
for (Map.Entry<Object, Object> entry : props.entrySet()) {
String k = entry.getKey().toString();
if (k.equals("class")) {
String clazz = entry.getValue().toString();
Class<?> cl = Class.forName(clazz);

answer.add(new ServiceInfo(name, cl));
}
}
} catch (Exception e) {
throw new RuntimeException(e);
}

return answer;
}

static class ServiceInfo {
final String name;
final Class<?> type;

public ServiceInfo(String name, Class<?> type) {
this.name = name;
this.type = type;
}

@Override
public String toString() {
return "ServiceInfo{"
+ "name='" + name + '\''
+ ", type=" + type
+ '}';
}
void beans(BuildProducer<AdditionalBeanBuildItem> beanProducer) {
beanProducer.produce(AdditionalBeanBuildItem.unremovableOf(CamelProducers.class));
}
}
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Expand Up @@ -16,19 +16,19 @@
*/
package org.apache.camel.quarkus.core.deployment;


import io.quarkus.builder.item.SimpleBuildItem;
import io.quarkus.runtime.RuntimeValue;
import org.apache.camel.quarkus.core.runtime.CamelRuntime;

public final class CamelRuntimeBuildItem extends SimpleBuildItem {
import org.apache.camel.CamelContext;

private final RuntimeValue<CamelRuntime> runtime;
public final class CamelContextBuildItem extends SimpleBuildItem {
private final RuntimeValue<CamelContext> value;

public CamelRuntimeBuildItem(RuntimeValue<CamelRuntime> runtime) {
this.runtime = runtime;
public CamelContextBuildItem(RuntimeValue<CamelContext> value) {
this.value = value;
}

public RuntimeValue<CamelRuntime> getRuntime() {
return runtime;
public RuntimeValue<CamelContext> getCamelContext() {
return value;
}
}
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@@ -0,0 +1,33 @@
/*
* 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.camel.quarkus.core.deployment;

import io.quarkus.builder.item.SimpleBuildItem;
import io.quarkus.runtime.RuntimeValue;
import org.apache.camel.spi.Registry;

public final class CamelRegistryBuildItem extends SimpleBuildItem {
private final RuntimeValue<Registry> value;

public CamelRegistryBuildItem(RuntimeValue<Registry> value) {
this.value = value;
}

public RuntimeValue<Registry> getRegistry() {
return value;
}
}
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Expand Up @@ -18,13 +18,26 @@

import java.io.IOError;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Modifier;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import java.util.stream.Stream;

import io.quarkus.deployment.builditem.ApplicationArchivesBuildItem;
import org.apache.camel.RoutesBuilder;
import org.apache.camel.builder.AdviceWithRouteBuilder;
import org.apache.camel.builder.RouteBuilder;
import org.jboss.jandex.ClassInfo;
import org.jboss.jandex.DotName;
import org.jboss.jandex.IndexView;

public final class CamelSupport {
public static final String CAMEL_SERVICE_BASE_PATH = "META-INF/services/org/apache/camel";
Expand Down Expand Up @@ -56,4 +69,67 @@ public static Stream<Path> resources(ApplicationArchivesBuildItem archives, Stri
.flatMap(CamelSupport::safeWalk)
.filter(Files::isRegularFile);
}

public static Stream<String> getRouteBuilderClasses(IndexView view) {
Set<ClassInfo> allKnownImplementors = new HashSet<>();
allKnownImplementors.addAll(
view.getAllKnownImplementors(DotName.createSimple(RoutesBuilder.class.getName())));
allKnownImplementors.addAll(
view.getAllKnownSubclasses(DotName.createSimple(RouteBuilder.class.getName())));
allKnownImplementors.addAll(
view.getAllKnownSubclasses(DotName.createSimple(AdviceWithRouteBuilder.class.getName())));

return allKnownImplementors
.stream()
.filter(CamelSupport::isConcrete)
.filter(CamelSupport::isPublic)
.map(ClassInfo::toString);
}

public static Stream<ServiceInfo> services(ApplicationArchivesBuildItem applicationArchivesBuildItem) {
return CamelSupport.resources(applicationArchivesBuildItem, CamelSupport.CAMEL_SERVICE_BASE_PATH)
.map(CamelSupport::services)
.flatMap(Collection::stream);
}

public static List<ServiceInfo> services(Path p) {
List<ServiceInfo> answer = new ArrayList<>();

String name = p.getFileName().toString();
try (InputStream is = Files.newInputStream(p)) {
Properties props = new Properties();
props.load(is);
for (Map.Entry<Object, Object> entry : props.entrySet()) {
String k = entry.getKey().toString();
if (k.equals("class")) {
String clazz = entry.getValue().toString();
Class<?> cl = Class.forName(clazz);

answer.add(new ServiceInfo(name, cl));
}
}
} catch (Exception e) {
throw new RuntimeException(e);
}

return answer;
}

public static class ServiceInfo {
public final String name;
public final Class<?> type;

public ServiceInfo(String name, Class<?> type) {
this.name = name;
this.type = type;
}

@Override
public String toString() {
return "ServiceInfo{"
+ "name='" + name + '\''
+ ", type=" + type
+ '}';
}
}
}
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Expand Up @@ -44,6 +44,7 @@
import org.apache.camel.Producer;
import org.apache.camel.TypeConverter;
import org.apache.camel.spi.ExchangeFormatter;
import org.apache.camel.spi.PropertiesComponent;
import org.apache.camel.spi.ScheduledPollConsumerScheduler;
import org.apache.camel.spi.StreamCachingStrategy;
import org.jboss.jandex.AnnotationTarget.Kind;
Expand All @@ -66,7 +67,8 @@ class SubstrateProcessor {
Component.class,
CamelContext.class,
StreamCachingStrategy.class,
StreamCachingStrategy.SpoolUsedHeapMemoryLimit.class);
StreamCachingStrategy.SpoolUsedHeapMemoryLimit.class,
PropertiesComponent.class);

@Inject
BuildProducer<ReflectiveClassBuildItem> reflectiveClass;
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