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demo: Update slot chain SPI demo (#1581) 

Signed-off-by: yunfeiyanggzq <yunfeiyang@buaa.edu.cn>
This commit is contained in:
ZhiQiang Gu 2020-07-06 13:46:04 +08:00 committed by GitHub
parent 57f9bc7a6a
commit 5e1a443663
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4 changed files with 10 additions and 14 deletions
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4
sentinel-demo/sentinel-demo-slot-chain-spi/src/main/java/com/alibaba/csp/sentinel/demo/slot/DemoSlot.java
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@ -19,17 +19,19 @@ import com.alibaba.csp.sentinel.context.Context;
import com.alibaba.csp.sentinel.node.DefaultNode; import com.alibaba.csp.sentinel.node.DefaultNode;
import com.alibaba.csp.sentinel.slotchain.AbstractLinkedProcessorSlot; import com.alibaba.csp.sentinel.slotchain.AbstractLinkedProcessorSlot;
import com.alibaba.csp.sentinel.slotchain.ResourceWrapper; import com.alibaba.csp.sentinel.slotchain.ResourceWrapper;
import com.alibaba.csp.sentinel.spi.SpiOrder;
/** /**
* An example slot that records current context and entry resource. * An example slot that records current context and entry resource.
* *
* @author Eric Zhao * @author Eric Zhao
*/ */
@SpiOrder(-3500)
public class DemoSlot extends AbstractLinkedProcessorSlot<DefaultNode> { public class DemoSlot extends AbstractLinkedProcessorSlot<DefaultNode> {
@Override @Override
public void entry(Context context, ResourceWrapper resourceWrapper, DefaultNode node, int count, boolean prioritized, Object... args) public void entry(Context context, ResourceWrapper resourceWrapper, DefaultNode node, int count, boolean prioritized, Object... args)
throws Throwable { throws Throwable {
System.out.println("Current context: " + context.getName()); System.out.println("Current context: " + context.getName());
System.out.println("Current entry resource: " + context.getCurEntry().getResourceWrapper().getName()); System.out.println("Current entry resource: " + context.getCurEntry().getResourceWrapper().getName());

16
sentinel-demo/sentinel-demo-slot-chain-spi/src/main/java/com/alibaba/csp/sentinel/demo/slot/DemoSlotChainBuilder.java
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@ -20,17 +20,11 @@ import com.alibaba.csp.sentinel.slotchain.SlotChainBuilder;
import com.alibaba.csp.sentinel.slots.DefaultSlotChainBuilder; import com.alibaba.csp.sentinel.slots.DefaultSlotChainBuilder;
/** /**
* An example slot chain builder. To activate this slot chain builder,
* add the class name to corresponding SPI file in `resource/META-INF/services` directory.
*
* @author Eric Zhao * @author Eric Zhao
*
* @deprecated since 1.7.2, we can use @SpiOrder(-3500) to adjust the order of {@link DemoSlot},
* this class is reserved for compatibility with older versions.
*/ */
public class DemoSlotChainBuilder implements SlotChainBuilder { @Deprecated
public class DemoSlotChainBuilder extends DefaultSlotChainBuilder {
@Override
public ProcessorSlotChain build() {
ProcessorSlotChain chain = new DefaultSlotChainBuilder().build();
chain.addLast(new DemoSlot());
return chain;
}
} }

2
sentinel-demo/sentinel-demo-slot-chain-spi/src/main/resources/META-INF/services/com.alibaba.csp.sentinel.slotchain.ProcessorSlot Normal file
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@ -0,0 +1,2 @@
# Custom slot processor
com.alibaba.csp.sentinel.demo.slot.DemoSlot

2
sentinel-demo/sentinel-demo-slot-chain-spi/src/main/resources/META-INF/services/com.alibaba.csp.sentinel.slotchain.SlotChainBuilder
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@ -1,2 +0,0 @@
# Custom slot chain builder
com.alibaba.csp.sentinel.demo.slot.DemoSlotChainBuilder