/*
* 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;
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Collection;
import java.util.concurrent.ExecutorService;
import org.apache.ignite.cache.affinity.Affinity;
import org.apache.ignite.cluster.ClusterGroup;
import org.apache.ignite.configuration.CacheConfiguration;
import org.apache.ignite.configuration.CollectionConfiguration;
import org.apache.ignite.configuration.IgniteConfiguration;
import org.apache.ignite.configuration.NearCacheConfiguration;
import org.apache.ignite.internal.util.typedef.G;
import org.apache.ignite.internal.util.typedef.internal.S;
import org.apache.ignite.lang.IgniteProductVersion;
import org.apache.ignite.plugin.IgnitePlugin;
import org.apache.ignite.plugin.PluginNotFoundException;
import org.jetbrains.annotations.Nullable;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
/**
* Ignite Spring bean allows to bypass {@link Ignition} methods.
* In other words, this bean class allows to inject new grid instance from
* Spring configuration file directly without invoking static
* {@link Ignition} methods. This class can be wired directly from
* Spring and can be referenced from within other Spring beans.
* By virtue of implementing {@link DisposableBean} and {@link InitializingBean}
* interfaces, {@code IgniteSpringBean} automatically starts and stops underlying
* grid instance.
* <p>
* <h1 class="header">Spring Configuration Example</h1>
* Here is a typical example of describing it in Spring file:
* <pre name="code" class="xml">
* <bean id="mySpringBean" class="org.apache.ignite.IgniteSpringBean">
* <property name="configuration">
* <bean id="grid.cfg" class="org.apache.ignite.configuration.IgniteConfiguration">
* <property name="igniteInstanceName" value="mySpringGrid"/>
* </bean>
* </property>
* </bean>
* </pre>
* Or use default configuration:
* <pre name="code" class="xml">
* <bean id="mySpringBean" class="org.apache.ignite.IgniteSpringBean"/>
* </pre>
* <h1 class="header">Java Example</h1>
* Here is how you may access this bean from code:
* <pre name="code" class="java">
* AbstractApplicationContext ctx = new FileSystemXmlApplicationContext("/path/to/spring/file");
*
* // Register Spring hook to destroy bean automatically.
* ctx.registerShutdownHook();
*
* Ignite ignite = (Ignite)ctx.getBean("mySpringBean");
* </pre>
* <p>
*/
public class IgniteSpringBean implements Ignite, DisposableBean, InitializingBean,
ApplicationContextAware, Externalizable {
/** */
private static final long serialVersionUID = 0L;
/** */
private Ignite g;
/** */
private IgniteConfiguration cfg;
/** */
private ApplicationContext appCtx;
/** {@inheritDoc} */
@Override public IgniteConfiguration configuration() {
return cfg;
}
/**
* Gets the configuration of this Ignite instance.
* <p>
* This method is required for proper Spring integration and is the same as
* {@link #configuration()}.
* See https://issues.apache.org/jira/browse/IGNITE-1102 for details.
* <p>
* <b>NOTE:</b>
* <br>
* SPIs obtains through this method should never be used directly. SPIs provide
* internal view on the subsystem and is used internally by Ignite kernal. In rare use cases when
* access to a specific implementation of this SPI is required - an instance of this SPI can be obtained
* via this method to check its configuration properties or call other non-SPI
* methods.
*
* @return Ignite configuration instance.
* @see #configuration()
*/
public IgniteConfiguration getConfiguration() {
return cfg;
}
/**
* Sets Ignite configuration.
*
* @param cfg Ignite configuration.
*/
public void setConfiguration(IgniteConfiguration cfg) {
this.cfg = cfg;
}
/**
* Gets the spring application context this Ignite runs in.
*
* @return Application context this Ignite runs in.
*/
public ApplicationContext getApplicationContext() throws BeansException {
return appCtx;
}
/** {@inheritDoc} */
@Override public void setApplicationContext(ApplicationContext ctx) throws BeansException {
appCtx = ctx;
}
/** {@inheritDoc} */
@Override public void destroy() throws Exception {
// If there were some errors when afterPropertiesSet() was called.
if (g != null) {
// Do not cancel started tasks, wait for them.
G.stop(g.name(), false);
}
}
/** {@inheritDoc} */
@Override public void afterPropertiesSet() throws Exception {
if (cfg == null)
cfg = new IgniteConfiguration();
g = IgniteSpring.start(cfg, appCtx);
}
/** {@inheritDoc} */
@Override public IgniteLogger log() {
checkIgnite();
return cfg.getGridLogger();
}
/** {@inheritDoc} */
@Override public IgniteProductVersion version() {
checkIgnite();
return g.version();
}
/** {@inheritDoc} */
@Override public IgniteCompute compute() {
checkIgnite();
return g.compute();
}
/** {@inheritDoc} */
@Override public IgniteServices services() {
checkIgnite();
return g.services();
}
/** {@inheritDoc} */
@Override public IgniteMessaging message() {
checkIgnite();
return g.message();
}
/** {@inheritDoc} */
@Override public IgniteEvents events() {
checkIgnite();
return g.events();
}
/** {@inheritDoc} */
@Override public ExecutorService executorService() {
checkIgnite();
return g.executorService();
}
/** {@inheritDoc} */
@Override public IgniteCluster cluster() {
checkIgnite();
return g.cluster();
}
/** {@inheritDoc} */
@Override public IgniteCompute compute(ClusterGroup grp) {
checkIgnite();
return g.compute(grp);
}
/** {@inheritDoc} */
@Override public IgniteMessaging message(ClusterGroup prj) {
checkIgnite();
return g.message(prj);
}
/** {@inheritDoc} */
@Override public IgniteEvents events(ClusterGroup grp) {
checkIgnite();
return g.events(grp);
}
/** {@inheritDoc} */
@Override public IgniteServices services(ClusterGroup grp) {
checkIgnite();
return g.services(grp);
}
/** {@inheritDoc} */
@Override public ExecutorService executorService(ClusterGroup grp) {
checkIgnite();
return g.executorService(grp);
}
/** {@inheritDoc} */
@Override public IgniteScheduler scheduler() {
checkIgnite();
return g.scheduler();
}
/** {@inheritDoc} */
@Override public String name() {
checkIgnite();
return g.name();
}
/** {@inheritDoc} */
@Override public void resetLostPartitions(Collection<String> cacheNames) {
checkIgnite();
g.resetLostPartitions(cacheNames);
}
/** {@inheritDoc} */
@Override public Collection<MemoryMetrics> memoryMetrics() {
checkIgnite();
return g.memoryMetrics();
}
/** {@inheritDoc} */
@Override public <K, V> IgniteCache<K, V> cache(@Nullable String name) {
checkIgnite();
return g.cache(name);
}
/** {@inheritDoc} */
@Override public Collection<String> cacheNames() {
checkIgnite();
return g.cacheNames();
}
/** {@inheritDoc} */
@Override public <K, V> IgniteCache<K, V> createCache(CacheConfiguration<K, V> cacheCfg) {
checkIgnite();
return g.createCache(cacheCfg);
}
/** {@inheritDoc} */
@Override public <K, V> IgniteCache<K, V> getOrCreateCache(CacheConfiguration<K, V> cacheCfg) {
checkIgnite();
return g.getOrCreateCache(cacheCfg);
}
/** {@inheritDoc} */
@Override public <K, V> IgniteCache<K, V> createCache(CacheConfiguration<K, V> cacheCfg,
NearCacheConfiguration<K, V> nearCfg) {
checkIgnite();
return g.createCache(cacheCfg, nearCfg);
}
/** {@inheritDoc} */
@Override public Collection<IgniteCache> createCaches(Collection<CacheConfiguration> cacheCfgs) {
checkIgnite();
return g.createCaches(cacheCfgs);
}
/** {@inheritDoc} */
@Override public <K, V> IgniteCache<K, V> getOrCreateCache(CacheConfiguration<K, V> cacheCfg, NearCacheConfiguration<K, V> nearCfg) {
checkIgnite();
return g.getOrCreateCache(cacheCfg, nearCfg);
}
/** {@inheritDoc} */
@Override public <K, V> IgniteCache<K, V> createNearCache(String cacheName, NearCacheConfiguration<K, V> nearCfg) {
checkIgnite();
return g.createNearCache(cacheName, nearCfg);
}
/** {@inheritDoc} */
@Override public <K, V> IgniteCache<K, V> getOrCreateNearCache(@Nullable String cacheName, NearCacheConfiguration<K, V> nearCfg) {
checkIgnite();
return g.getOrCreateNearCache(cacheName, nearCfg);
}
/** {@inheritDoc} */
@Override public <K, V> IgniteCache<K, V> getOrCreateCache(String cacheName) {
checkIgnite();
return g.getOrCreateCache(cacheName);
}
/** {@inheritDoc} */
@Override public Collection<IgniteCache> getOrCreateCaches(Collection<CacheConfiguration> cacheCfgs) {
checkIgnite();
return g.getOrCreateCaches(cacheCfgs);
}
/** {@inheritDoc} */
@Override public <K, V> IgniteCache<K, V> createCache(String cacheName) {
checkIgnite();
return g.createCache(cacheName);
}
/** {@inheritDoc} */
@Override public <K, V> void addCacheConfiguration(CacheConfiguration<K, V> cacheCfg) {
checkIgnite();
g.addCacheConfiguration(cacheCfg);
}
/** {@inheritDoc} */
@Override public void destroyCache(String cacheName) {
checkIgnite();
g.destroyCache(cacheName);
}
/** {@inheritDoc} */
@Override public void destroyCaches(Collection<String> cacheNames) {
checkIgnite();
g.destroyCaches(cacheNames);
}
/** {@inheritDoc} */
@Override public IgniteTransactions transactions() {
checkIgnite();
return g.transactions();
}
/** {@inheritDoc} */
@Override public <K, V> IgniteDataStreamer<K, V> dataStreamer(@Nullable String cacheName) {
checkIgnite();
return g.dataStreamer(cacheName);
}
/** {@inheritDoc} */
@Override public IgniteFileSystem fileSystem(String name) {
checkIgnite();
return g.fileSystem(name);
}
/** {@inheritDoc} */
@Override public Collection<IgniteFileSystem> fileSystems() {
checkIgnite();
return g.fileSystems();
}
/** {@inheritDoc} */
@Override public <T extends IgnitePlugin> T plugin(String name) throws PluginNotFoundException {
checkIgnite();
return g.plugin(name);
}
/** {@inheritDoc} */
@Override public IgniteBinary binary() {
checkIgnite();
return g.binary();
}
/** {@inheritDoc} */
@Override public void close() throws IgniteException {
g.close();
}
/** {@inheritDoc} */
@Nullable @Override public IgniteAtomicSequence atomicSequence(String name, long initVal, boolean create) {
checkIgnite();
return g.atomicSequence(name, initVal, create);
}
/** {@inheritDoc} */
@Nullable @Override public IgniteAtomicLong atomicLong(String name, long initVal, boolean create) {
checkIgnite();
return g.atomicLong(name, initVal, create);
}
/** {@inheritDoc} */
@Nullable @Override public <T> IgniteAtomicReference<T> atomicReference(String name,
@Nullable T initVal,
boolean create)
{
checkIgnite();
return g.atomicReference(name, initVal, create);
}
/** {@inheritDoc} */
@Nullable @Override public <T, S> IgniteAtomicStamped<T, S> atomicStamped(String name,
@Nullable T initVal,
@Nullable S initStamp,
boolean create)
{
checkIgnite();
return g.atomicStamped(name, initVal, initStamp, create);
}
/** {@inheritDoc} */
@Nullable @Override public IgniteCountDownLatch countDownLatch(String name,
int cnt,
boolean autoDel,
boolean create)
{
checkIgnite();
return g.countDownLatch(name, cnt, autoDel, create);
}
/** {@inheritDoc} */
@Nullable @Override public IgniteSemaphore semaphore(String name,
int cnt,
boolean failoverSafe,
boolean create)
{
checkIgnite();
return g.semaphore(name, cnt,
failoverSafe, create);
}
/** {@inheritDoc} */
@Nullable @Override public IgniteLock reentrantLock(String name,
boolean failoverSafe,
boolean fair,
boolean create)
{
checkIgnite();
return g.reentrantLock(name, failoverSafe, fair, create);
}
/** {@inheritDoc} */
@Nullable @Override public <T> IgniteQueue<T> queue(String name,
int cap,
CollectionConfiguration cfg)
{
checkIgnite();
return g.queue(name, cap, cfg);
}
/** {@inheritDoc} */
@Nullable @Override public <T> IgniteSet<T> set(String name,
CollectionConfiguration cfg)
{
checkIgnite();
return g.set(name, cfg);
}
/** {@inheritDoc} */
@Override public <K> Affinity<K> affinity(String cacheName) {
return g.affinity(cacheName);
}
/** {@inheritDoc} */
@Override public boolean active() {
checkIgnite();
return g.active();
}
/** {@inheritDoc} */
@Override public void active(boolean active) {
checkIgnite();
g.active(active);
}
/** {@inheritDoc} */
@Override public void writeExternal(ObjectOutput out) throws IOException {
out.writeObject(g);
}
/** {@inheritDoc} */
@Override public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
g = (Ignite)in.readObject();
cfg = g.configuration();
}
/**
* Checks if this bean is valid.
*
* @throws IllegalStateException If bean is not valid, i.e. Ignite has already been stopped
* or has not yet been started.
*/
protected void checkIgnite() throws IllegalStateException {
if (g == null) {
throw new IllegalStateException("Ignite is in invalid state to perform this operation. " +
"It either not started yet or has already being or have stopped " +
"[ignite=" + g + ", cfg=" + cfg + ']');
}
}
/** {@inheritDoc} */
@Override public String toString() {
return S.toString(IgniteSpringBean.class, this);
}
}