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No more mind-boggling ExternalResourceReleasable

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This commit is contained in:
Trustin Lee 2012-07-07 13:42:36 +09:00
parent 8dc1f321cb
commit cda2d6f5aa
2 changed files with 0 additions and 76 deletions
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31
common/src/main/java/io/netty/util/ExternalResourceReleasable.java
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/*
* Copyright 2012 The Netty Project
*
* The Netty Project 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 io.netty.util;
/**
* A common interface for a class which depends on external resources that
* need explicit release or shutdown.
* @apiviz.landmark
*/
public interface ExternalResourceReleasable {
/**
* Releases the external resources that this object depends on. You should
* not call this method if the external resources (e.g. thread pool) are
* in use by other objects.
*/
void releaseExternalResources();
}

45
common/src/main/java/io/netty/util/ExternalResourceUtil.java
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/*
* Copyright 2012 The Netty Project
*
* The Netty Project 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 io.netty.util;
/**
* A utility class that provides the convenient shutdown of
* {@link ExternalResourceReleasable}s.
*/
public final class ExternalResourceUtil {
/**
* Releases the specified {@link ExternalResourceReleasable}s.
*/
public static void release(ExternalResourceReleasable... releasables) {
ExternalResourceReleasable[] releasablesCopy =
new ExternalResourceReleasable[releasables.length];
for (int i = 0; i < releasables.length; i ++) {
if (releasables[i] == null) {
throw new NullPointerException("releasables[" + i + "]");
}
releasablesCopy[i] = releasables[i];
}
for (ExternalResourceReleasable e: releasablesCopy) {
e.releaseExternalResources();
}
}
private ExternalResourceUtil() {
}
}