Java Code Examples for com.alibaba.dubbo.rpc.Invoker#isAvailable()
The following examples show how to use
com.alibaba.dubbo.rpc.Invoker#isAvailable() .
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Example 1
| Source File: AbstractClusterInvoker.java From dubbox with Apache License 2.0 | 5 votes |
|
public boolean isAvailable() {
Invoker<T> invoker = stickyInvoker;
if (invoker != null) {
return invoker.isAvailable();
}
return directory.isAvailable();
}
Example 2
| Source File: RegistryDirectory.java From dubbox with Apache License 2.0 | 5 votes |
|
public boolean isAvailable() {
if (isDestroyed()) {
return false;
}
Map<String, Invoker<T>> localUrlInvokerMap = urlInvokerMap;
if (localUrlInvokerMap != null && localUrlInvokerMap.size() > 0) {
for (Invoker<T> invoker : new ArrayList<Invoker<T>>(localUrlInvokerMap.values())) {
if (invoker.isAvailable()) {
return true;
}
}
}
return false;
}
Example 3
| Source File: AvailableCluster.java From dubbox with Apache License 2.0 | 5 votes |
|
public <T> Invoker<T> join(Directory<T> directory) throws RpcException {
return new AbstractClusterInvoker<T>(directory) {
public Result doInvoke(Invocation invocation, List<Invoker<T>> invokers, LoadBalance loadbalance) throws RpcException {
for (Invoker<T> invoker : invokers) {
if (invoker.isAvailable()) {
return invoker.invoke(invocation);
}
}
throw new RpcException("No provider available in " + invokers);
}
};
}
Example 4
| Source File: AvailableCluster.java From dubbox-hystrix with Apache License 2.0 | 5 votes |
|
public <T> Invoker<T> join(Directory<T> directory) throws RpcException {
return new AbstractClusterInvoker<T>(directory) {
public Result doInvoke(Invocation invocation, List<Invoker<T>> invokers, LoadBalance loadbalance) throws RpcException {
for (Invoker<T> invoker : invokers) {
if (invoker.isAvailable()) {
return invoker.invoke(invocation);
}
}
throw new RpcException("No provider available in " + invokers);
}
};
}
Example 5
| Source File: StaticDirectory.java From dubbox with Apache License 2.0 | 5 votes |
|
public boolean isAvailable() {
if (isDestroyed()) {
return false;
}
for (Invoker<T> invoker : invokers) {
if (invoker.isAvailable()) {
return true;
}
}
return false;
}
Example 6
| Source File: StaticDirectory.java From dubbox-hystrix with Apache License 2.0 | 5 votes |
|
public boolean isAvailable() {
if (isDestroyed()) {
return false;
}
for (Invoker<T> invoker : invokers) {
if (invoker.isAvailable()) {
return true;
}
}
return false;
}
Example 7
| Source File: ProtocolFilterWrapper.java From dubbo3 with Apache License 2.0 | 5 votes |
|
private static <T> Invoker<T> buildInvokerChain(final Invoker<T> invoker, String key, String group) {
Invoker<T> last = invoker;
List<Filter> filters = ExtensionLoader.getExtensionLoader(Filter.class).getActivateExtension(invoker.getUrl(), key, group);
if (filters.size() > 0) {
for (int i = filters.size() - 1; i >= 0; i --) {
final Filter filter = filters.get(i);
final Invoker<T> next = last;
last = new Invoker<T>() {
public Class<T> getInterface() {
return invoker.getInterface();
}
public URL getUrl() {
return invoker.getUrl();
}
public boolean isAvailable() {
return invoker.isAvailable();
}
public Result invoke(Invocation invocation) throws RpcException {
return filter.invoke(next, invocation);
}
public void destroy() {
invoker.destroy();
}
@Override
public String toString() {
return invoker.toString();
}
};
}
}
return last;
}
Example 8
| Source File: ProtocolFilterWrapper.java From dubbox with Apache License 2.0 | 5 votes |
|
private static <T> Invoker<T> buildInvokerChain(final Invoker<T> invoker, String key, String group) {
Invoker<T> last = invoker;
List<Filter> filters = ExtensionLoader.getExtensionLoader(Filter.class).getActivateExtension(invoker.getUrl(), key, group);
if (filters.size() > 0) {
for (int i = filters.size() - 1; i >= 0; i --) {
final Filter filter = filters.get(i);
final Invoker<T> next = last;
last = new Invoker<T>() {
public Class<T> getInterface() {
return invoker.getInterface();
}
public URL getUrl() {
return invoker.getUrl();
}
public boolean isAvailable() {
return invoker.isAvailable();
}
public Result invoke(Invocation invocation) throws RpcException {
return filter.invoke(next, invocation);
}
public void destroy() {
invoker.destroy();
}
@Override
public String toString() {
return invoker.toString();
}
};
}
}
return last;
}
Example 9
| Source File: AbstractClusterInvokerTest.java From dubbox with Apache License 2.0 | 5 votes |
|
/**
* 测试均衡.
*/
@Test
public void testSelectBalance(){
LoadBalance lb = ExtensionLoader.getExtensionLoader(LoadBalance.class).getExtension(RoundRobinLoadBalance.NAME);
initlistsize5();
Map<Invoker,AtomicLong> counter = new ConcurrentHashMap<Invoker,AtomicLong>();
for(Invoker invoker :invokers){
counter.put(invoker, new AtomicLong(0));
}
int runs = 1000;
for(int i=0;i<runs;i++){
selectedInvokers.clear();
Invoker sinvoker = cluster.select(lb, invocation, invokers, selectedInvokers);
counter.get(sinvoker).incrementAndGet();
}
for (Invoker minvoker :counter.keySet() ){
Long count = counter.get(minvoker).get();
// System.out.println(count);
if(minvoker.isAvailable())
Assert.assertTrue("count should > avg", count>runs/invokers.size());
}
Assert.assertEquals(runs, counter.get(invoker2).get()+counter.get(invoker4).get());;
}
Example 10
| Source File: ProtocolFilterWrapper.java From dubbox-hystrix with Apache License 2.0 | 5 votes |
|
private static <T> Invoker<T> buildInvokerChain(final Invoker<T> invoker, String key, String group) {
Invoker<T> last = invoker;
List<Filter> filters = ExtensionLoader.getExtensionLoader(Filter.class).getActivateExtension(invoker.getUrl(), key, group);
if (filters.size() > 0) {
for (int i = filters.size() - 1; i >= 0; i --) {
final Filter filter = filters.get(i);
final Invoker<T> next = last;
last = new Invoker<T>() {
public Class<T> getInterface() {
return invoker.getInterface();
}
public URL getUrl() {
return invoker.getUrl();
}
public boolean isAvailable() {
return invoker.isAvailable();
}
public Result invoke(Invocation invocation) throws RpcException {
return filter.invoke(next, invocation);
}
public void destroy() {
invoker.destroy();
}
@Override
public String toString() {
return invoker.toString();
}
};
}
}
return last;
}
Example 11
| Source File: AvailableCluster.java From dubbo3 with Apache License 2.0 | 5 votes |
|
public <T> Invoker<T> join(Directory<T> directory) throws RpcException {
return new AbstractClusterInvoker<T>(directory) {
public Result doInvoke(Invocation invocation, List<Invoker<T>> invokers, LoadBalance loadbalance) throws RpcException {
for (Invoker<T> invoker : invokers) {
if (invoker.isAvailable()) {
return invoker.invoke(invocation);
}
}
throw new RpcException("No provider available in " + invokers);
}
};
}
Example 12
| Source File: AbstractClusterInvoker.java From dubbox with Apache License 2.0 | 5 votes |
|
private Invoker<T> doselect(LoadBalance loadbalance, Invocation invocation, List<Invoker<T>> invokers, List<Invoker<T>> selected) throws RpcException {
if (invokers == null || invokers.size() == 0)
return null;
if (invokers.size() == 1)
return invokers.get(0);
// 如果只有两个invoker，退化成轮循
if (invokers.size() == 2 && selected != null && selected.size() > 0) {
return selected.get(0) == invokers.get(0) ? invokers.get(1) : invokers.get(0);
}
Invoker<T> invoker = loadbalance.select(invokers, getUrl(), invocation);
//如果 selected中包含（优先判断） 或者 不可用&&availablecheck=true 则重试.
if( (selected != null && selected.contains(invoker))
||(!invoker.isAvailable() && getUrl()!=null && availablecheck)){
try{
Invoker<T> rinvoker = reselect(loadbalance, invocation, invokers, selected, availablecheck);
if(rinvoker != null){
invoker = rinvoker;
}else{
//看下第一次选的位置，如果不是最后，选+1位置.
int index = invokers.indexOf(invoker);
try{
//最后在避免碰撞
invoker = index <invokers.size()-1?invokers.get(index+1) :invoker;
}catch (Exception e) {
logger.warn(e.getMessage()+" may because invokers list dynamic change, ignore.",e);
}
}
}catch (Throwable t){
logger.error("clustor relselect fail reason is :"+t.getMessage() +" if can not slove ,you can set cluster.availablecheck=false in url",t);
}
}
return invoker;
}
Example 13
| Source File: AvailableClusterInvoker.java From dubbox with Apache License 2.0 | 5 votes |
|
public Result doInvoke(Invocation invocation, List<Invoker<T>> invokers, LoadBalance loadbalance) throws RpcException {
for (Invoker<T> invoker : invokers) {
if (invoker.isAvailable()) {
return invoker.invoke(invocation);
}
}
throw new RpcException("No provider available in " + invokers);
}
Example 14
| Source File: AbstractClusterInvokerTest.java From dubbox with Apache License 2.0 | 5 votes |
|
/**
* 测试均衡.
*/
@Test
public void testSelectBalance(){
LoadBalance lb = ExtensionLoader.getExtensionLoader(LoadBalance.class).getExtension(RoundRobinLoadBalance.NAME);
initlistsize5();
Map<Invoker,AtomicLong> counter = new ConcurrentHashMap<Invoker,AtomicLong>();
for(Invoker invoker :invokers){
counter.put(invoker, new AtomicLong(0));
}
int runs = 1000;
for(int i=0;i<runs;i++){
selectedInvokers.clear();
Invoker sinvoker = cluster.select(lb, invocation, invokers, selectedInvokers);
counter.get(sinvoker).incrementAndGet();
}
for (Invoker minvoker :counter.keySet() ){
Long count = counter.get(minvoker).get();
// System.out.println(count);
if(minvoker.isAvailable())
Assert.assertTrue("count should > avg", count>runs/invokers.size());
}
Assert.assertEquals(runs, counter.get(invoker2).get()+counter.get(invoker4).get());;
}
Example 15
| Source File: StaticDirectory.java From dubbo3 with Apache License 2.0 | 5 votes |
|
public boolean isAvailable() {
if (isDestroyed()) {
return false;
}
for (Invoker<T> invoker : invokers) {
if (invoker.isAvailable()) {
return true;
}
}
return false;
}
Example 16
| Source File: AbstractClusterInvokerTest.java From dubbo-2.6.5 with Apache License 2.0 | 5 votes |
|
/**
* Test balance.
*/
@Test
public void testSelectBalance() {
LoadBalance lb = ExtensionLoader.getExtensionLoader(LoadBalance.class).getExtension(RoundRobinLoadBalance.NAME);
initlistsize5();
Map<Invoker, AtomicLong> counter = new ConcurrentHashMap<Invoker, AtomicLong>();
for (Invoker invoker : invokers) {
counter.put(invoker, new AtomicLong(0));
}
int runs = 1000;
for (int i = 0; i < runs; i++) {
selectedInvokers.clear();
Invoker sinvoker = cluster.select(lb, invocation, invokers, selectedInvokers);
counter.get(sinvoker).incrementAndGet();
}
for (Invoker minvoker : counter.keySet()) {
Long count = counter.get(minvoker).get();
// System.out.println(count);
if (minvoker.isAvailable())
Assert.assertTrue("count should > avg", count > runs / invokers.size());
}
Assert.assertEquals(runs, counter.get(invoker2).get() + counter.get(invoker4).get());
;
}
Example 17
| Source File: AbstractClusterInvoker.java From dubbo-2.6.5 with Apache License 2.0 | 5 votes |
|
private Invoker<T> doSelect(LoadBalance loadbalance, Invocation invocation, List<Invoker<T>> invokers, List<Invoker<T>> selected) throws RpcException {
if (invokers == null || invokers.isEmpty())
return null;
if (invokers.size() == 1)
return invokers.get(0);
if (loadbalance == null) {
// 默认负载均衡策略 random
loadbalance = ExtensionLoader.getExtensionLoader(LoadBalance.class).getExtension(Constants.DEFAULT_LOADBALANCE);
}
Invoker<T> invoker = loadbalance.select(invokers, getUrl(), invocation);
//If the `invoker` is in the `selected` or invoker is unavailable && availablecheck is true, reselect.
if ((selected != null && selected.contains(invoker))
|| (!invoker.isAvailable() && getUrl() != null && availablecheck)) {
try {
// 如果选择的执行器不可用，重新选择=》
Invoker<T> rinvoker = reselect(loadbalance, invocation, invokers, selected, availablecheck);
if (rinvoker != null) {
invoker = rinvoker;
} else {
//Check the index of current selected invoker, if it's not the last one, choose the one at index+1. 检查当前选定调用程序的索引，如果不是最后一个，则选择index+1处的索引。
int index = invokers.indexOf(invoker);
try {
//Avoid collision
invoker = index < invokers.size() - 1 ? invokers.get(index + 1) : invokers.get(0);
} catch (Exception e) {
logger.warn(e.getMessage() + " may because invokers list dynamic change, ignore.", e);
}
}
} catch (Throwable t) {
logger.error("cluster reselect fail reason is :" + t.getMessage() + " if can not solve, you can set cluster.availablecheck=false in url", t);
}
}
return invoker;
}
Example 18
| Source File: AbstractClusterInvoker.java From dubbo-2.6.5 with Apache License 2.0 | 5 votes |
|
@Override
public boolean isAvailable() {
Invoker<T> invoker = stickyInvoker;
if (invoker != null) {
return invoker.isAvailable();
}
return directory.isAvailable();
}
Example 19
| Source File: AbstractClusterInvoker.java From dubbox with Apache License 2.0 | 5 votes |
|
private Invoker<T> doselect(LoadBalance loadbalance, Invocation invocation, List<Invoker<T>> invokers, List<Invoker<T>> selected) throws RpcException {
if (invokers == null || invokers.size() == 0)
return null;
if (invokers.size() == 1)
return invokers.get(0);
// 如果只有两个invoker，退化成轮循
if (invokers.size() == 2 && selected != null && selected.size() > 0) {
return selected.get(0) == invokers.get(0) ? invokers.get(1) : invokers.get(0);
}
Invoker<T> invoker = loadbalance.select(invokers, getUrl(), invocation);
//如果 selected中包含（优先判断） 或者 不可用&&availablecheck=true 则重试.
if( (selected != null && selected.contains(invoker))
||(!invoker.isAvailable() && getUrl()!=null && availablecheck)){
try{
Invoker<T> rinvoker = reselect(loadbalance, invocation, invokers, selected, availablecheck);
if(rinvoker != null){
invoker = rinvoker;
}else{
//看下第一次选的位置，如果不是最后，选+1位置.
int index = invokers.indexOf(invoker);
try{
//最后在避免碰撞
invoker = index <invokers.size()-1?invokers.get(index+1) :invoker;
}catch (Exception e) {
logger.warn(e.getMessage()+" may because invokers list dynamic change, ignore.",e);
}
}
}catch (Throwable t){
logger.error("clustor relselect fail reason is :"+t.getMessage() +" if can not slove ,you can set cluster.availablecheck=false in url",t);
}
}
return invoker;
}
Example 20
| Source File: AbstractClusterInvokerTest.java From dubbo3 with Apache License 2.0 | 5 votes |
|
/**
* 测试均衡.
*/
@Test
public void testSelectBalance(){
LoadBalance lb = ExtensionLoader.getExtensionLoader(LoadBalance.class).getExtension(RoundRobinLoadBalance.NAME);
initlistsize5();
Map<Invoker,AtomicLong> counter = new ConcurrentHashMap<Invoker,AtomicLong>();
for(Invoker invoker :invokers){
counter.put(invoker, new AtomicLong(0));
}
int runs = 1000;
for(int i=0;i<runs;i++){
selectedInvokers.clear();
Invoker sinvoker = cluster.select(lb, invocation, invokers, selectedInvokers);
counter.get(sinvoker).incrementAndGet();
}
for (Invoker minvoker :counter.keySet() ){
Long count = counter.get(minvoker).get();
// System.out.println(count);
if(minvoker.isAvailable())
Assert.assertTrue("count should > avg", count>runs/invokers.size());
}
Assert.assertEquals(runs, counter.get(invoker2).get()+counter.get(invoker4).get());;
}
