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Moved BoundedHashMap (used by SimpleMessageStore) to the sandbox.

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This commit is contained in:
Mark Fisher
2008-11-02 17:17:23 +00:00
parent 7cc24bba50
commit c322dfd61e
2 changed files with 0 additions and 102 deletions
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54
org.springframework.integration/src/main/java/org/springframework/integration/util/BoundedHashMap.java
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@@ -1,54 +0,0 @@
/*
* Copyright 2002-2008 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.integration.util;
import java.util.LinkedHashMap;
import java.util.Map.Entry;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.util.Assert;
/**
* A Map implementation that enforces the specified capacity.
*
* @author Mark Fisher
*/
public class BoundedHashMap<K, V> extends LinkedHashMap<K, V> {
private static final Log logger = LogFactory.getLog(BoundedHashMap.class);
private final int capacity;
public BoundedHashMap(int capacity) {
Assert.isTrue(capacity > 0, "capacity must be a positive value");
this.capacity = capacity;
}
@Override
protected boolean removeEldestEntry(Entry<K, V> eldest) {
boolean shouldRemove = this.size() > this.capacity;
if (shouldRemove && logger.isDebugEnabled()) {
logger.debug("removing eldest entry from BoundedHashMap with capacity of " + this.capacity);
}
return shouldRemove;
}
}

48
org.springframework.integration/src/test/java/org/springframework/integration/util/BoundedHashMapTests.java
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@@ -1,48 +0,0 @@
/*
* Copyright 2002-2008 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.integration.util;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
/**
* @author Mark Fisher
*/
public class BoundedHashMapTests {
@Test
public void testCapacityEnforced() {
BoundedHashMap<String, Integer> map = new BoundedHashMap<String, Integer>(3);
map.put("A", 1);
map.put("B", 2);
map.put("C", 3);
assertEquals(3, map.size());
assertTrue(map.containsKey("A"));
assertTrue(map.containsKey("B"));
assertTrue(map.containsKey("C"));
map.put("D", 4);
assertEquals(3, map.size());
assertFalse(map.containsKey("A"));
assertTrue(map.containsKey("B"));
assertTrue(map.containsKey("C"));
assertTrue(map.containsKey("D"));
}
}