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Java-based middleware for in-memory processing of big data in a distributed environment.
/*
* 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.ignite.internal.util.spring;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicReference;
import org.apache.ignite.IgniteCheckedException;
import org.apache.ignite.IgniteLogger;
import org.apache.ignite.configuration.IgniteConfiguration;
import org.apache.ignite.internal.processors.resource.GridSpringResourceContext;
import org.apache.ignite.internal.processors.resource.GridSpringResourceContextImpl;
import org.apache.ignite.internal.util.typedef.F;
import org.apache.ignite.internal.util.typedef.X;
import org.apache.ignite.internal.util.typedef.internal.U;
import org.apache.ignite.lang.IgniteBiTuple;
import org.jetbrains.annotations.Nullable;
import org.springframework.beans.BeansException;
import org.springframework.beans.PropertyValue;
import org.springframework.beans.factory.ListableBeanFactory;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.BeanDefinitionHolder;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.GenericApplicationContext;
import org.springframework.core.io.ByteArrayResource;
import org.springframework.core.io.InputStreamResource;
import org.springframework.core.io.UrlResource;
/**
* Spring configuration helper.
*/
public class IgniteSpringHelperImpl implements IgniteSpringHelper {
/** Path to {@code ignite.xml} file. */
public static final String IGNITE_XML_PATH = "META-INF/ignite.xml";
/** System class loader user version. */
private static final AtomicReference SYS_LDR_VER = new AtomicReference<>(null);
/**
* Try to execute LogFactory.getFactory().setAttribute("org.apache.commons.logging.Log", null)
* to turn off default logging for Spring Framework.
*/
static {
Class logFactoryCls = null;
try {
logFactoryCls = Class.forName("org.apache.commons.logging.LogFactory");
}
catch (ClassNotFoundException ignored) {
// No-op.
}
if (logFactoryCls != null) {
try {
Object factory = logFactoryCls.getMethod("getFactory").invoke(null);
factory.getClass().getMethod("setAttribute", String.class, Object.class).
invoke(factory, "org.apache.commons.logging.Log", null);
}
catch (Exception ignored) {
// No-op.
}
}
}
/** {@inheritDoc} */
@Override public IgniteBiTuple, ? extends GridSpringResourceContext>
loadConfigurations(URL cfgUrl, String... excludedProps) throws IgniteCheckedException {
return loadConfigurations(cfgUrl, IgniteConfiguration.class, excludedProps);
}
/** {@inheritDoc} */
@Override public IgniteBiTuple, ? extends GridSpringResourceContext>
loadConfigurations(URL cfgUrl, Class cls, String... excludedProps) throws IgniteCheckedException {
ApplicationContext springCtx = applicationContext(cfgUrl, excludedProps);
Map cfgMap;
try {
cfgMap = springCtx.getBeansOfType(cls);
}
catch (BeansException e) {
throw new IgniteCheckedException("Failed to instantiate bean [type=" + cls +
", err=" + e.getMessage() + ']', e);
}
if (cfgMap == null || cfgMap.isEmpty())
throw new IgniteCheckedException("Failed to find configuration in: " + cfgUrl);
return F.t(cfgMap.values(), new GridSpringResourceContextImpl(springCtx));
}
/** {@inheritDoc} */
@Override public IgniteBiTuple, ? extends GridSpringResourceContext>
loadConfigurations(InputStream cfgStream, String... excludedProps) throws IgniteCheckedException {
return loadConfigurations(cfgStream, IgniteConfiguration.class, excludedProps);
}
/** {@inheritDoc} */
@Override public IgniteBiTuple, ? extends GridSpringResourceContext> loadConfigurations(
InputStream cfgStream, Class cls, String... excludedProps) throws IgniteCheckedException {
ApplicationContext springCtx = applicationContext(cfgStream, excludedProps);
Map cfgMap;
try {
cfgMap = springCtx.getBeansOfType(cls);
}
catch (BeansException e) {
throw new IgniteCheckedException("Failed to instantiate bean [type=" + cls +
", err=" + e.getMessage() + ']', e);
}
if (cfgMap == null || cfgMap.isEmpty())
throw new IgniteCheckedException("Failed to find configuration in: " + cfgStream);
return F.t(cfgMap.values(), new GridSpringResourceContextImpl(springCtx));
}
/** {@inheritDoc} */
@Override public Map, Object> loadBeans(URL cfgUrl, Class... beanClasses) throws IgniteCheckedException {
assert beanClasses.length > 0;
ApplicationContext springCtx = initContext(cfgUrl);
Map, Object> beans = new HashMap<>();
for (Class cls : beanClasses)
beans.put(cls, bean(springCtx, cls));
return beans;
}
/** {@inheritDoc} */
@SuppressWarnings("unchecked")
@Override public T loadBean(URL url, String beanName) throws IgniteCheckedException {
ApplicationContext springCtx = initContext(url);
try {
return (T)springCtx.getBean(beanName);
}
catch (NoSuchBeanDefinitionException ignored) {
throw new IgniteCheckedException("Spring bean with provided name doesn't exist [url=" + url +
", beanName=" + beanName + ']');
}
catch (BeansException e) {
throw new IgniteCheckedException("Failed to load Spring bean with provided name [url=" + url +
", beanName=" + beanName + ']', e);
}
}
/** {@inheritDoc} */
@Override public Map, Object> loadBeans(InputStream cfgStream, Class... beanClasses)
throws IgniteCheckedException {
assert beanClasses.length > 0;
ApplicationContext springCtx = initContext(cfgStream);
Map, Object> beans = new HashMap<>();
for (Class cls : beanClasses)
beans.put(cls, bean(springCtx, cls));
return beans;
}
/** {@inheritDoc} */
@SuppressWarnings("unchecked")
@Override public T loadBean(InputStream cfgStream, String beanName) throws IgniteCheckedException {
ApplicationContext springCtx = initContext(cfgStream);
try {
return (T)springCtx.getBean(beanName);
}
catch (NoSuchBeanDefinitionException ignored) {
throw new IgniteCheckedException("Spring bean with provided name doesn't exist " +
", beanName=" + beanName + ']');
}
catch (BeansException e) {
throw new IgniteCheckedException("Failed to load Spring bean with provided name " +
", beanName=" + beanName + ']', e);
}
}
/** {@inheritDoc} */
@Override public T loadBeanFromAppContext(Object appContext, String beanName) throws IgniteCheckedException {
ApplicationContext springCtx = (ApplicationContext)appContext;
try {
return (T)springCtx.getBean(beanName);
}
catch (NoSuchBeanDefinitionException ignored) {
throw new IgniteCheckedException("Spring bean with provided name doesn't exist " +
", beanName=" + beanName + ']');
}
catch (BeansException e) {
throw new IgniteCheckedException("Failed to load Spring bean with provided name " +
", beanName=" + beanName + ']', e);
}
}
/**
* @param stream Input stream containing Spring XML configuration.
* @return Context.
* @throws IgniteCheckedException In case of error.
*/
private ApplicationContext initContext(InputStream stream) throws IgniteCheckedException {
GenericApplicationContext springCtx;
try {
springCtx = new GenericApplicationContext();
XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(springCtx);
reader.setValidationMode(XmlBeanDefinitionReader.VALIDATION_XSD);
reader.loadBeanDefinitions(new InputStreamResource(stream));
springCtx.refresh();
}
catch (BeansException e) {
if (X.hasCause(e, ClassNotFoundException.class))
throw new IgniteCheckedException("Failed to instantiate Spring XML application context " +
"(make sure all classes used in Spring configuration are present at CLASSPATH) ", e);
else
throw new IgniteCheckedException("Failed to instantiate Spring XML application context" +
", err=" + e.getMessage() + ']', e);
}
return springCtx;
}
/**
* @param url XML file URL.
* @return Context.
* @throws IgniteCheckedException In case of error.
*/
private ApplicationContext initContext(URL url) throws IgniteCheckedException {
GenericApplicationContext springCtx;
try {
springCtx = new GenericApplicationContext();
new XmlBeanDefinitionReader(springCtx).loadBeanDefinitions(new UrlResource(url));
springCtx.refresh();
}
catch (BeansException e) {
if (X.hasCause(e, ClassNotFoundException.class))
throw new IgniteCheckedException("Failed to instantiate Spring XML application context " +
"(make sure all classes used in Spring configuration are present at CLASSPATH) " +
"[springUrl=" + url + ']', e);
else
throw new IgniteCheckedException("Failed to instantiate Spring XML application context [springUrl=" +
url + ", err=" + e.getMessage() + ']', e);
}
return springCtx;
}
/** {@inheritDoc} */
@Override public String userVersion(ClassLoader ldr, IgniteLogger log) {
assert ldr != null;
assert log != null;
// For system class loader return cached version.
if (ldr == U.gridClassLoader() && SYS_LDR_VER.get() != null)
return SYS_LDR_VER.get();
String usrVer = U.DFLT_USER_VERSION;
InputStream in = ldr.getResourceAsStream(IGNITE_XML_PATH);
if (in != null) {
// Note: use ByteArrayResource instead of InputStreamResource because
// InputStreamResource doesn't work.
ByteArrayOutputStream out = new ByteArrayOutputStream();
try {
U.copy(in, out);
DefaultListableBeanFactory factory = new DefaultListableBeanFactory();
XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(factory);
reader.loadBeanDefinitions(new ByteArrayResource(out.toByteArray()));
usrVer = (String)factory.getBean("userVersion");
usrVer = usrVer == null ? U.DFLT_USER_VERSION : usrVer.trim();
}
catch (NoSuchBeanDefinitionException ignored) {
if (log.isInfoEnabled())
log.info("User version is not explicitly defined (will use default version) [file=" +
IGNITE_XML_PATH + ", clsLdr=" + ldr + ']');
usrVer = U.DFLT_USER_VERSION;
}
catch (BeansException e) {
U.error(log, "Failed to parse Spring XML file (will use default user version) [file=" +
IGNITE_XML_PATH + ", clsLdr=" + ldr + ']', e);
usrVer = U.DFLT_USER_VERSION;
}
catch (IOException e) {
U.error(log, "Failed to read Spring XML file (will use default user version) [file=" +
IGNITE_XML_PATH + ", clsLdr=" + ldr + ']', e);
usrVer = U.DFLT_USER_VERSION;
}
finally {
U.close(out, log);
}
}
// For system class loader return cached version.
if (ldr == U.gridClassLoader())
SYS_LDR_VER.compareAndSet(null, usrVer);
return usrVer;
}
/**
* Gets bean configuration.
*
* @param ctx Spring context.
* @param beanCls Bean class.
* @return Spring bean.
*/
@Nullable private static T bean(ListableBeanFactory ctx, Class beanCls) {
Map.Entry entry = F.firstEntry(ctx.getBeansOfType(beanCls));
return entry == null ? null : entry.getValue();
}
/**
* Creates Spring application context. Optionally excluded properties can be specified,
* it means that if such a property is found in {@link org.apache.ignite.configuration.IgniteConfiguration}
* then it is removed before the bean is instantiated.
* For example, {@code streamerConfiguration} can be excluded from the configs that Visor uses.
*
* @param cfgUrl Resource where config file is located.
* @param excludedProps Properties to be excluded.
* @return Spring application context.
* @throws IgniteCheckedException If configuration could not be read.
*/
public static ApplicationContext applicationContext(URL cfgUrl, final String... excludedProps)
throws IgniteCheckedException {
try {
GenericApplicationContext springCtx = prepareSpringContext(excludedProps);
new XmlBeanDefinitionReader(springCtx).loadBeanDefinitions(new UrlResource(cfgUrl));
springCtx.refresh();
return springCtx;
}
catch (BeansException e) {
if (X.hasCause(e, ClassNotFoundException.class))
throw new IgniteCheckedException("Failed to instantiate Spring XML application context " +
"(make sure all classes used in Spring configuration are present at CLASSPATH) " +
"[springUrl=" + cfgUrl + ']', e);
else
throw new IgniteCheckedException("Failed to instantiate Spring XML application context [springUrl=" +
cfgUrl + ", err=" + e.getMessage() + ']', e);
}
}
/**
* Creates Spring application context. Optionally excluded properties can be specified,
* it means that if such a property is found in {@link org.apache.ignite.configuration.IgniteConfiguration}
* then it is removed before the bean is instantiated.
* For example, {@code streamerConfiguration} can be excluded from the configs that Visor uses.
*
* @param cfgStream Stream where config file is located.
* @param excludedProps Properties to be excluded.
* @return Spring application context.
* @throws IgniteCheckedException If configuration could not be read.
*/
public static ApplicationContext applicationContext(InputStream cfgStream, final String... excludedProps)
throws IgniteCheckedException {
try {
GenericApplicationContext springCtx = prepareSpringContext(excludedProps);
XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(springCtx);
reader.setValidationMode(XmlBeanDefinitionReader.VALIDATION_XSD);
reader.loadBeanDefinitions(new InputStreamResource(cfgStream));
springCtx.refresh();
return springCtx;
}
catch (BeansException e) {
if (X.hasCause(e, ClassNotFoundException.class))
throw new IgniteCheckedException("Failed to instantiate Spring XML application context " +
"(make sure all classes used in Spring configuration are present at CLASSPATH) ", e);
else
throw new IgniteCheckedException("Failed to instantiate Spring XML application context [err=" +
e.getMessage() + ']', e);
}
}
/**
* Prepares Spring context.
*
* @param excludedProps Properties to be excluded.
* @return application context.
*/
private static GenericApplicationContext prepareSpringContext(final String... excludedProps) {
GenericApplicationContext springCtx = new GenericApplicationContext();
if (excludedProps.length > 0) {
final List excludedPropsList = Arrays.asList(excludedProps);
BeanFactoryPostProcessor postProc = new BeanFactoryPostProcessor() {
/**
* @param def Registered BeanDefinition.
* @throws BeansException in case of errors.
*/
private void processNested(BeanDefinition def) throws BeansException {
Iterator iterVals = def.getPropertyValues().getPropertyValueList().iterator();
while (iterVals.hasNext()) {
PropertyValue val = iterVals.next();
if (excludedPropsList.contains(val.getName())) {
iterVals.remove();
continue;
}
if (val.getValue() instanceof Iterable) {
Iterator iterNested = ((Iterable)val.getValue()).iterator();
while (iterNested.hasNext()) {
Object item = iterNested.next();
if (item instanceof BeanDefinitionHolder) {
BeanDefinitionHolder h = (BeanDefinitionHolder)item;
try {
if (h.getBeanDefinition().getBeanClassName() != null)
Class.forName(h.getBeanDefinition().getBeanClassName());
processNested(h.getBeanDefinition());
}
catch (ClassNotFoundException ignored) {
iterNested.remove();
}
}
}
}
}
}
@Override public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)
throws BeansException {
for (String beanName : beanFactory.getBeanDefinitionNames()) {
try {
BeanDefinition def = beanFactory.getBeanDefinition(beanName);
if (def.getBeanClassName() != null)
Class.forName(def.getBeanClassName());
processNested(def);
}
catch (ClassNotFoundException ignored) {
((BeanDefinitionRegistry)beanFactory).removeBeanDefinition(beanName);
}
}
}
};
springCtx.addBeanFactoryPostProcessor(postProc);
}
return springCtx;
}
}
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