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Merge pull request #1838 from ljacomet/issue-1814-1-merge
[release/3.2] Issue #1814 Passive sync of state repository data
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27 changes: 27 additions & 0 deletions
27
clustered/client/src/main/java/org/ehcache/clustered/client/internal/service/ValueCodec.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| /* | ||
| * Copyright Terracotta, Inc. | ||
| * | ||
| * 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. | ||
| */ | ||
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| package org.ehcache.clustered.client.internal.service; | ||
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| /** | ||
| * ValueCodec | ||
| */ | ||
| interface ValueCodec<T> { | ||
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| Object encode(T input); | ||
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| T decode(Object input); | ||
| } |
105 changes: 105 additions & 0 deletions
105
...client/src/main/java/org/ehcache/clustered/client/internal/service/ValueCodecFactory.java
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|---|---|---|
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| /* | ||
| * Copyright Terracotta, Inc. | ||
| * | ||
| * 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. | ||
| */ | ||
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| package org.ehcache.clustered.client.internal.service; | ||
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| import org.ehcache.clustered.common.internal.store.ValueWrapper; | ||
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| import java.io.ByteArrayInputStream; | ||
| import java.io.ByteArrayOutputStream; | ||
| import java.io.IOException; | ||
| import java.io.ObjectInputStream; | ||
| import java.io.ObjectOutputStream; | ||
| import java.io.Serializable; | ||
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| /** | ||
| * ValueCodecFactory | ||
| */ | ||
| class ValueCodecFactory { | ||
| static <T> ValueCodec<T> getCodecForClass(Class<T> clazz) { | ||
| if (!Serializable.class.isAssignableFrom(clazz)) { | ||
| throw new IllegalArgumentException("The provided type is invalid as it is not Serializable " + clazz); | ||
| } | ||
| if (Integer.class.equals(clazz) || Long.class.equals(clazz) | ||
| || Float.class.equals(clazz) || Double.class.equals(clazz) | ||
| || Byte.class.equals(clazz) || Character.class.equals(clazz) | ||
| || clazz.isPrimitive() || String.class.equals(clazz)) { | ||
| return new IdentityCodec<T>(); | ||
| } else { | ||
| return new SerializationWrapperCodec<T>(); | ||
| } | ||
| } | ||
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| private static class IdentityCodec<T> implements ValueCodec<T> { | ||
| @Override | ||
| public Object encode(T input) { | ||
| return input; | ||
| } | ||
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| @Override | ||
| @SuppressWarnings("unchecked") | ||
| public T decode(Object input) { | ||
| return (T) input; | ||
| } | ||
| } | ||
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| private static class SerializationWrapperCodec<T> implements ValueCodec<T> { | ||
| @Override | ||
| public Object encode(T input) { | ||
| if (input == null) { | ||
| return null; | ||
| } | ||
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); | ||
| try { | ||
| ObjectOutputStream oos = new ObjectOutputStream(baos); | ||
| try { | ||
| oos.writeObject(input); | ||
| } catch(IOException e) { | ||
| throw new RuntimeException("Object cannot be serialized", e); | ||
| } finally { | ||
| oos.close(); | ||
| } | ||
| } catch(IOException e) { | ||
| // ignore | ||
| } | ||
| return new ValueWrapper(input.hashCode(), baos.toByteArray()); | ||
| } | ||
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| @Override | ||
| public T decode(Object input) { | ||
| if (input == null) { | ||
| return null; | ||
| } | ||
| ValueWrapper data = (ValueWrapper) input; | ||
| ByteArrayInputStream bais = new ByteArrayInputStream(data.getValue()); | ||
| try { | ||
| ObjectInputStream ois = new ObjectInputStream(bais); | ||
| try { | ||
| @SuppressWarnings("unchecked") | ||
| T result = (T) ois.readObject(); | ||
| return result; | ||
| } catch (ClassNotFoundException e) { | ||
| throw new RuntimeException("Could not load class", e); | ||
| } finally { | ||
| ois.close(); | ||
| } | ||
| } catch(IOException e) { | ||
| // ignore | ||
| } | ||
| throw new AssertionError("Cannot reach here!"); | ||
| } | ||
| } | ||
| } |
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56 changes: 56 additions & 0 deletions
56
clustered/common/src/main/java/org/ehcache/clustered/common/internal/store/ValueWrapper.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| /* | ||
| * Copyright Terracotta, Inc. | ||
| * | ||
| * 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. | ||
| */ | ||
|
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| package org.ehcache.clustered.common.internal.store; | ||
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| import java.io.Serializable; | ||
| import java.util.Arrays; | ||
|
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| /** | ||
| * ValueWrapper | ||
| */ | ||
| public class ValueWrapper implements Serializable { | ||
|
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| private static final long serialVersionUID = -4794738044295644587L; | ||
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| private final int hashCode; | ||
| private final byte[] value; | ||
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| public ValueWrapper(int hashCode, byte[] value) { | ||
| this.hashCode = hashCode; | ||
| this.value = value; | ||
| } | ||
|
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| public byte[] getValue() { | ||
| return value; | ||
| } | ||
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| @Override | ||
| public boolean equals(Object o) { | ||
| if (this == o) return true; | ||
| if (o == null || getClass() != o.getClass()) return false; | ||
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| ValueWrapper that = (ValueWrapper) o; | ||
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| if (hashCode != that.hashCode) return false; | ||
| return Arrays.equals(value, that.value); | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return hashCode; | ||
| } | ||
| } |
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