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Posted to dev@cxf.apache.org by GitBox <gi...@apache.org> on 2018/09/23 14:59:27 UTC
[GitHub] deki closed pull request #449: [CXF-7846] jaxrs client instantiator
lifecycle and pluggability
deki closed pull request #449: [CXF-7846] jaxrs client instantiator lifecycle and pluggability
URL: https://github.com/apache/cxf/pull/449
This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:
As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):
diff --git a/rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/impl/ConfigurableImpl.java b/rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/impl/ConfigurableImpl.java
index fe2427a7b7f..6ac7ca6a9e8 100644
--- a/rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/impl/ConfigurableImpl.java
+++ b/rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/impl/ConfigurableImpl.java
@@ -19,10 +19,14 @@
package org.apache.cxf.jaxrs.impl;
+import java.util.ArrayList;
import java.util.Arrays;
+import java.util.Collection;
import java.util.HashSet;
+import java.util.Iterator;
import java.util.List;
import java.util.Map;
+import java.util.ServiceLoader;
import java.util.Set;
import java.util.logging.Logger;
import java.util.stream.Collectors;
@@ -41,7 +45,7 @@
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.jaxrs.utils.AnnotationUtils;
-public class ConfigurableImpl<C extends Configurable<C>> implements Configurable<C> {
+public class ConfigurableImpl<C extends Configurable<C>> implements Configurable<C>, AutoCloseable {
private static final Logger LOG = LogUtils.getL7dLogger(ConfigurableImpl.class);
private static final Class<?>[] RESTRICTED_CLASSES_IN_SERVER = {ClientRequestFilter.class,
@@ -51,11 +55,19 @@
private ConfigurationImpl config;
private final C configurable;
-
+ private final ClassLoader classLoader;
+
private final Class<?>[] restrictedContractTypes;
+ private final Collection<Object> instantiatorInstances = new ArrayList<>();
+ private volatile Instantiator instantiator;
+
public interface Instantiator {
<T> Object create(Class<T> cls);
+
+ default void release(Object instance) {
+ // no-op
+ }
}
public ConfigurableImpl(C configurable, RuntimeType rt) {
@@ -66,7 +78,8 @@ public ConfigurableImpl(C configurable, Configuration config) {
this.configurable = configurable;
this.config = config instanceof ConfigurationImpl
? (ConfigurationImpl)config : new ConfigurationImpl(config);
- restrictedContractTypes = RuntimeType.CLIENT.equals(config.getRuntimeType()) ? RESTRICTED_CLASSES_IN_CLIENT
+ this.classLoader = Thread.currentThread().getContextClassLoader();
+ restrictedContractTypes = RuntimeType.CLIENT.equals(config.getRuntimeType()) ? RESTRICTED_CLASSES_IN_CLIENT
: RESTRICTED_CLASSES_IN_SERVER;
}
@@ -110,6 +123,17 @@ protected C getConfigurable() {
return configurable;
}
+ @Override
+ public void close() {
+ synchronized (instantiatorInstances) {
+ if (instantiatorInstances.isEmpty()) {
+ return;
+ }
+ instantiatorInstances.forEach(instantiator::release);
+ instantiatorInstances.clear();
+ }
+ }
+
@Override
public Configuration getConfiguration() {
return config;
@@ -128,6 +152,12 @@ public C register(Object provider) {
@Override
public C register(Object provider, int bindingPriority) {
+ if (Instantiator.class.isInstance(provider)) {
+ synchronized (this) {
+ instantiator = Instantiator.class.cast(provider);
+ }
+ return configurable;
+ }
return doRegister(provider, bindingPriority, getImplementedContracts(provider, restrictedContractTypes));
}
@@ -148,7 +178,7 @@ public C register(Class<?> providerClass) {
@Override
public C register(Class<?> providerClass, int bindingPriority) {
- return doRegister(getInstantiator().create(providerClass), bindingPriority,
+ return doRegister(createProvider(providerClass), bindingPriority,
getImplementedContracts(providerClass, restrictedContractTypes));
}
@@ -159,11 +189,25 @@ public C register(Class<?> providerClass, Class<?>... contracts) {
@Override
public C register(Class<?> providerClass, Map<Class<?>, Integer> contracts) {
- return register(getInstantiator().create(providerClass), contracts);
+ return register(createProvider(providerClass), contracts);
}
protected Instantiator getInstantiator() {
- return ConfigurationImpl::createProvider;
+ if (instantiator != null) {
+ return instantiator;
+ }
+ synchronized (this) {
+ if (instantiator != null) {
+ return instantiator;
+ }
+ final Iterator<Instantiator> instantiators = ServiceLoader.load(Instantiator.class, classLoader).iterator();
+ if (instantiators.hasNext()) {
+ instantiator = instantiators.next();
+ } else {
+ instantiator = ConfigurationImpl::createProvider;
+ }
+ }
+ return instantiator;
}
private C doRegister(Object provider, int bindingPriority, Class<?>... contracts) {
@@ -217,4 +261,13 @@ private boolean checkConstraints(Object provider) {
}
return true;
}
+
+ private Object createProvider(final Class<?> providerClass) {
+ final Object instance = getInstantiator().create(providerClass);
+ synchronized (instantiatorInstances) {
+ instantiatorInstances.add(instance);
+ }
+ return instance;
+ }
}
+
diff --git a/rt/rs/client/src/main/java/org/apache/cxf/jaxrs/client/spec/ClientBuilderImpl.java b/rt/rs/client/src/main/java/org/apache/cxf/jaxrs/client/spec/ClientBuilderImpl.java
index 93f8034c2ec..5f6027581d3 100644
--- a/rt/rs/client/src/main/java/org/apache/cxf/jaxrs/client/spec/ClientBuilderImpl.java
+++ b/rt/rs/client/src/main/java/org/apache/cxf/jaxrs/client/spec/ClientBuilderImpl.java
@@ -32,14 +32,13 @@
import javax.ws.rs.RuntimeType;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
-import javax.ws.rs.core.Configurable;
import javax.ws.rs.core.Configuration;
import org.apache.cxf.jaxrs.client.AbstractClient;
public class ClientBuilderImpl extends ClientBuilder {
- private Configurable<ClientBuilder> configImpl;
+ private ClientConfigurableImpl<ClientBuilder> configImpl;
private TLSConfiguration secConfig = new TLSConfiguration();
public ClientBuilderImpl() {
@@ -98,7 +97,13 @@ public ClientBuilder register(Object object, Map<Class<?>, Integer> map) {
@Override
public Client build() {
- return new ClientImpl(configImpl.getConfiguration(), secConfig);
+ return new ClientImpl(configImpl.getConfiguration(), secConfig) {
+ @Override
+ public void close() {
+ super.close();
+ configImpl.close();
+ }
+ };
}
@Override
@@ -181,3 +186,4 @@ private void validateTimeout(long timeout) {
}
}
}
+
diff --git a/rt/rs/client/src/test/java/org/apache/cxf/jaxrs/client/spec/ClientBuilderImplTest.java b/rt/rs/client/src/test/java/org/apache/cxf/jaxrs/client/spec/ClientBuilderImplTest.java
new file mode 100644
index 00000000000..da45a0eb2b8
--- /dev/null
+++ b/rt/rs/client/src/test/java/org/apache/cxf/jaxrs/client/spec/ClientBuilderImplTest.java
@@ -0,0 +1,62 @@
+/**
+ * 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.jaxrs.client.spec;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+import javax.ws.rs.client.Client;
+
+import org.apache.cxf.jaxrs.impl.ConfigurableImpl;
+import org.apache.cxf.jaxrs.provider.PrimitiveTextProvider;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.fail;
+
+public class ClientBuilderImplTest {
+ @Test
+ public void withCustomInstantiator() {
+ final AtomicInteger create = new AtomicInteger();
+ final AtomicInteger close = new AtomicInteger();
+ final Client build = new ClientBuilderImpl().register(new ConfigurableImpl.Instantiator() {
+ @Override
+ public <T> Object create(final Class<T> cls) {
+ try {
+ create.incrementAndGet();
+ return cls.newInstance();
+ } catch (final InstantiationException | IllegalAccessException e) {
+ fail(e.getMessage());
+ }
+ return null;
+ }
+
+ @Override
+ public void release(final Object instance) {
+ close.incrementAndGet();
+ }
+ }).register(PrimitiveTextProvider.class).build();
+ assertEquals(1, create.get());
+ assertEquals(0, close.get());
+ build.close();
+ assertEquals(1, create.get());
+ assertEquals(1, close.get());
+ }
+}
+
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