Retry policy needed to know if the callback was successful.

This commit is contained in:
dsyer
2008-08-22 14:31:10 +00:00
parent d270ac3345
commit fac1c2b22b
16 changed files with 175 additions and 39 deletions

View File

@@ -29,7 +29,7 @@ public class AlwaysRetryPolicyTests extends TestCase {
assertTrue(policy.canRetry(context));
policy.registerThrowable(context, null);
assertTrue(policy.canRetry(context));
policy.close(context);
policy.close(context, true);
assertTrue(policy.canRetry(context));
}

View File

@@ -78,17 +78,17 @@ public class CompositeRetryPolicyTests extends TestCase {
final List<String> list = new ArrayList<String>();
CompositeRetryPolicy policy = new CompositeRetryPolicy();
policy.setPolicies(new RetryPolicy[] { new MockRetryPolicySupport() {
public void close(RetryContext context) {
public void close(RetryContext context, boolean succeeded) {
list.add("1");
}
}, new MockRetryPolicySupport() {
public void close(RetryContext context) {
public void close(RetryContext context, boolean succeeded) {
list.add("2");
}
} });
RetryContext context = policy.open(null, null);
assertNotNull(context);
policy.close(context);
policy.close(context, true);
assertEquals(2, list.size());
}
@@ -96,19 +96,19 @@ public class CompositeRetryPolicyTests extends TestCase {
final List<String> list = new ArrayList<String>();
CompositeRetryPolicy policy = new CompositeRetryPolicy();
policy.setPolicies(new RetryPolicy[] { new MockRetryPolicySupport() {
public void close(RetryContext context) {
public void close(RetryContext context, boolean succeeded) {
list.add("1");
throw new RuntimeException("Pah!");
}
}, new MockRetryPolicySupport() {
public void close(RetryContext context) {
public void close(RetryContext context, boolean succeeded) {
list.add("2");
}
} });
RetryContext context = policy.open(null, null);
assertNotNull(context);
try {
policy.close(context);
policy.close(context, true);
fail("Expected RuntimeException");
} catch (RuntimeException e) {
assertEquals("Pah!", e.getMessage());

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@@ -106,7 +106,7 @@ public class ExceptionClassifierRetryPolicyTests extends TestCase {
public void testClose() throws Exception {
policy.setPolicyMap(Collections.singletonMap(ExceptionClassifierSupport.DEFAULT,
(RetryPolicy) new MockRetryPolicySupport() {
public void close(RetryContext context) {
public void close(RetryContext context, boolean succeeded) {
count++;
}
}));
@@ -114,12 +114,12 @@ public class ExceptionClassifierRetryPolicyTests extends TestCase {
// The mapped (child) policy hasn't been used yet, so if we close now
// we don't incur the possible expense of ceating the child context.
policy.close(context);
policy.close(context, true);
assertEquals(0, count); // not classified yet
// This forces a child context to be created and the child policy is
// then closed
policy.registerThrowable(context, new IllegalStateException());
policy.close(context);
policy.close(context, true);
assertEquals(1, count); // now classified
}

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@@ -0,0 +1,133 @@
/*
* Copyright 2006-2007 the original author or authors.
*
* Licensed 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.springframework.batch.retry.policy;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import org.junit.Test;
import org.springframework.batch.retry.RetryCallback;
import org.springframework.batch.retry.RetryContext;
import org.springframework.batch.retry.callback.RecoveryRetryCallback;
import org.springframework.batch.retry.support.RetryTemplate;
/**
* @author Dave Syer
*
*/
public class ExternalRetryIntergrationTests {
@Test
public void testExternalRetryWithFailAndNoRetry() throws Exception {
MockRetryCallback callback = new MockRetryCallback();
RecoveryRetryCallback recoveryCallback = new RecoveryRetryCallback("foo", callback);
RetryTemplate retryTemplate = new RetryTemplate();
RecoveryCallbackRetryPolicy retryPolicy = new RecoveryCallbackRetryPolicy(new SimpleRetryPolicy(1));
MapRetryContextCache cache = new MapRetryContextCache();
retryPolicy.setRetryContextCache(cache);
retryTemplate.setRetryPolicy(retryPolicy);
assertFalse(cache.containsKey("foo"));
Object result = "start_foo";
try {
result = retryTemplate.execute(recoveryCallback);
// The first failed attempt we expect to retry...
fail("Expected RuntimeException");
}
catch (RuntimeException e) {
assertNull(e.getMessage());
}
assertTrue(cache.containsKey("foo"));
try {
result = retryTemplate.execute(recoveryCallback);
// We always get a second attempt...
}
catch (IllegalArgumentException e) {
// This is now the "exhausted" message:
assertNotNull(e.getMessage());
// But if template is external we should
// swallow the exception when retry is impossible.
fail("Did not expect IllegalArgumentException");
}
assertFalse(cache.containsKey("foo"));
// Callback is called once: the recovery path should be called in
// handleRetryExhausted (so not in this test)...
assertEquals(1, callback.attempts);
assertEquals(null, result);
}
@Test
public void testExternalRetryWithSuccessOnRetry() throws Exception {
MockRetryCallback callback = new MockRetryCallback();
RecoveryRetryCallback recoveryCallback = new RecoveryRetryCallback("foo", callback);
RetryTemplate retryTemplate = new RetryTemplate();
RecoveryCallbackRetryPolicy retryPolicy = new RecoveryCallbackRetryPolicy(new SimpleRetryPolicy(2));
MapRetryContextCache cache = new MapRetryContextCache();
retryPolicy.setRetryContextCache(cache);
retryTemplate.setRetryPolicy(retryPolicy);
assertFalse(cache.containsKey("foo"));
Object result = "start_foo";
try {
result = retryTemplate.execute(recoveryCallback);
// The first failed attempt we expect to retry...
fail("Expected RuntimeException");
}
catch (RuntimeException e) {
assertNull(e.getMessage());
}
assertTrue(cache.containsKey("foo"));
result = retryTemplate.execute(recoveryCallback);
assertFalse(cache.containsKey("foo"));
assertEquals(2, callback.attempts);
assertEquals("bar", result);
}
/**
* @author Dave Syer
*
*/
private final class MockRetryCallback implements RetryCallback {
int attempts = 0;
public Object doWithRetry(RetryContext context) throws Throwable {
attempts++;
if (attempts < 2) {
throw new RuntimeException();
}
return "bar";
}
}
}

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@@ -94,7 +94,6 @@ public class ExternalRetryPolicyTests extends TestCase {
}
catch (IllegalArgumentException e) {
// Expected
System.err.println(e.getMessage());
assertTrue(Pattern.matches(".*not.*Throwable.*", e.getMessage()));
}
@@ -192,7 +191,7 @@ public class ExternalRetryPolicyTests extends TestCase {
return attempts < retryLimit;
}
public void close(RetryContext context) {
public void close(RetryContext context, boolean succeeded) {
// do nothing
}

View File

@@ -31,7 +31,7 @@ public class NeverRetryPolicyTests extends TestCase {
assertTrue(policy.canRetry(context));
policy.registerThrowable(context, null);
assertFalse(policy.canRetry(context));
policy.close(context);
policy.close(context, true);
assertFalse(policy.canRetry(context));
}

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@@ -109,7 +109,7 @@ public class RecoveryRetryPolicyTests extends TestCase {
assertNotNull(context);
policy.registerThrowable(context, new Exception());
assertFalse(policy.canRetry(context));
policy.close(context);
policy.close(context, true);
// still can't retry, even if policy is closed
// (not that this would happen in practice)...
assertFalse(policy.canRetry(context));
@@ -129,14 +129,14 @@ public class RecoveryRetryPolicyTests extends TestCase {
assertNotNull(context);
policy.registerThrowable(context, new Exception());
assertTrue(policy.canRetry(context));
policy.close(context);
policy.close(context, false);
// Second call...
context = policy.open(callback, null);
assertNotNull(context);
policy.registerThrowable(context, new Exception());
assertFalse(policy.canRetry(context));
policy.close(context);
policy.close(context, true);
}
@@ -229,7 +229,7 @@ public class RecoveryRetryPolicyTests extends TestCase {
// False before close...
assertFalse(policy.canRetry(context));
policy.close(context);
policy.close(context, true);
Object result = policy.handleRetryExhausted(context);
assertNull(result); // default result is null

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@@ -30,7 +30,7 @@ public class TimeoutRetryPolicyTests extends TestCase {
assertTrue(policy.canRetry(context));
Thread.sleep(200);
assertFalse(policy.canRetry(context));
policy.close(context);
policy.close(context, true);
}
public void testRetryCount() throws Exception {