/
MarshallerContextImpl.java
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/
MarshallerContextImpl.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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 org.apache.ignite.internal;
import org.apache.ignite.*;
import org.apache.ignite.internal.processors.cache.*;
import org.apache.ignite.internal.util.typedef.internal.*;
import java.util.concurrent.*;
/**
* Marshaller context implementation.
*/
public class MarshallerContextImpl extends MarshallerContextAdapter {
/** */
private final CountDownLatch latch = new CountDownLatch(1);
/** */
private volatile GridCacheAdapter<Integer, String> cache;
/**
* @param ctx Kernal context.
*/
public void onMarshallerCacheReady(GridKernalContext ctx) {
assert ctx != null;
cache = ctx.cache().marshallerCache();
latch.countDown();
}
/** {@inheritDoc} */
@Override public void registerClass(int id, Class cls) {
if (!clsNameById.containsKey(id)) {
U.debug("REG: " + cls.getName());
try {
if (cache == null)
U.awaitQuiet(latch);
String old = cache.putIfAbsent(id, cls.getName());
if (old != null && !old.equals(cls.getName()))
throw new IgniteException("Type ID collision occurred in OptimizedMarshaller. Use " +
"OptimizedMarshallerIdMapper to resolve it [id=" + id + ", clsName1=" + cls.getName() +
"clsName2=" + old + ']');
clsNameById.putIfAbsent(id, cls.getName());
}
catch (IgniteCheckedException e) {
throw U.convertException(e);
}
}
}
/** {@inheritDoc} */
@Override public Class className(int id, ClassLoader ldr) throws ClassNotFoundException {
String clsName = clsNameById.get(id);
if (clsName == null) {
try {
if (cache == null)
U.awaitQuiet(latch);
clsName = cache.get(id);
assert clsName != null : id;
String old = clsNameById.putIfAbsent(id, clsName);
if (old != null)
clsName = old;
}
catch (IgniteCheckedException e) {
throw U.convertException(e);
}
}
return Class.forName(clsName, false, ldr);
}
}