| /* |
| * 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.flink.graph.drivers.transform; |
| |
| import org.apache.flink.api.common.ExecutionConfig; |
| import org.apache.flink.api.common.typeinfo.AtomicType; |
| import org.apache.flink.api.common.typeinfo.TypeInfo; |
| import org.apache.flink.api.common.typeinfo.TypeInfoFactory; |
| import org.apache.flink.api.common.typeinfo.TypeInformation; |
| import org.apache.flink.api.common.typeutils.TypeComparator; |
| import org.apache.flink.api.common.typeutils.TypeSerializer; |
| import org.apache.flink.api.common.typeutils.base.LongSerializer; |
| import org.apache.flink.api.common.typeutils.base.LongValueComparator; |
| import org.apache.flink.api.common.typeutils.base.TypeSerializerSingleton; |
| import org.apache.flink.api.java.typeutils.TypeExtractor; |
| import org.apache.flink.core.memory.DataInputView; |
| import org.apache.flink.core.memory.DataOutputView; |
| import org.apache.flink.types.LongValue; |
| |
| import java.io.IOException; |
| import java.lang.reflect.Type; |
| import java.util.Collections; |
| import java.util.Map; |
| |
| /** |
| * Fix for {@link LongValue#hashCode()}. |
| */ |
| @TypeInfo(LongValueWithProperHashCode.LongValueWithProperHashCodeTypeInfoFactory.class) |
| public class LongValueWithProperHashCode |
| extends LongValue { |
| |
| @Override |
| public int hashCode() { |
| return (int) (this.getValue() ^ this.getValue() >>> 32); |
| } |
| |
| /** |
| * Initializes the encapsulated long with 0. |
| */ |
| public LongValueWithProperHashCode() { |
| super(); |
| } |
| |
| /** |
| * Initializes the encapsulated long with the specified value. |
| * |
| * @param value Initial value of the encapsulated long. |
| */ |
| public LongValueWithProperHashCode(final long value) { |
| super(value); |
| } |
| |
| /** |
| * Used by {@link TypeExtractor} to create a {@link TypeInformation} for |
| * {@link LongValueWithProperHashCode}. |
| */ |
| public static class LongValueWithProperHashCodeTypeInfoFactory extends TypeInfoFactory<LongValueWithProperHashCode> { |
| @Override |
| public TypeInformation<LongValueWithProperHashCode> createTypeInfo(Type t, Map<String, TypeInformation<?>> genericParameters) { |
| @SuppressWarnings("unchecked") |
| TypeInformation<LongValueWithProperHashCode> typeInfo = new LongValueWithProperHashCodeTypeInfo(); |
| |
| return typeInfo; |
| } |
| } |
| |
| /** |
| * A {@link TypeInformation} for the {@link LongValueWithProperHashCode} type. |
| * |
| * @see org.apache.flink.api.java.typeutils.ValueTypeInfo#LONG_VALUE_TYPE_INFO |
| */ |
| public static class LongValueWithProperHashCodeTypeInfo extends TypeInformation<LongValueWithProperHashCode> implements AtomicType<LongValueWithProperHashCode> { |
| private static final long serialVersionUID = 1L; |
| |
| @Override |
| public int getArity() { |
| return 1; |
| } |
| |
| @Override |
| public int getTotalFields() { |
| return 1; |
| } |
| |
| @SuppressWarnings("unchecked") |
| @Override |
| public Class<LongValueWithProperHashCode> getTypeClass() { |
| return LongValueWithProperHashCode.class; |
| } |
| |
| @Override |
| public boolean isBasicType() { |
| return false; |
| } |
| |
| @Override |
| public boolean isTupleType() { |
| return false; |
| } |
| |
| @Override |
| public boolean isKeyType() { |
| return Comparable.class.isAssignableFrom(LongValueWithProperHashCode.class); |
| } |
| |
| @Override |
| @SuppressWarnings("unchecked") |
| public TypeSerializer<LongValueWithProperHashCode> createSerializer(ExecutionConfig executionConfig) { |
| return new LongValueWithProperHashCodeSerializer(); |
| } |
| |
| @SuppressWarnings({ "unchecked", "rawtypes" }) |
| @Override |
| public TypeComparator<LongValueWithProperHashCode> createComparator(boolean sortOrderAscending, ExecutionConfig executionConfig) { |
| return (TypeComparator<LongValueWithProperHashCode>) (TypeComparator<?>) new LongValueComparator(sortOrderAscending); |
| } |
| |
| @Override |
| public Map<String, TypeInformation<?>> getGenericParameters() { |
| return Collections.emptyMap(); |
| } |
| |
| // -------------------------------------------------------------------------------------------- |
| |
| @Override |
| public int hashCode() { |
| return 0; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| return obj instanceof LongValueWithProperHashCodeTypeInfo; |
| } |
| |
| @Override |
| public boolean canEqual(Object obj) { |
| return obj instanceof LongValueWithProperHashCodeTypeInfo; |
| } |
| |
| @Override |
| public String toString() { |
| return LongValueWithProperHashCodeTypeInfo.class.getSimpleName(); |
| } |
| } |
| |
| /** |
| * Serializer for {@link LongValueWithProperHashCode}. |
| * |
| * @see org.apache.flink.api.common.typeutils.base.LongValueSerializer |
| */ |
| public static final class LongValueWithProperHashCodeSerializer extends TypeSerializerSingleton<LongValueWithProperHashCode> { |
| private static final long serialVersionUID = 1L; |
| |
| @Override |
| public boolean isImmutableType() { |
| return false; |
| } |
| |
| @Override |
| public LongValueWithProperHashCode createInstance() { |
| return new LongValueWithProperHashCode(); |
| } |
| |
| @Override |
| public LongValueWithProperHashCode copy(LongValueWithProperHashCode from) { |
| return copy(from, new LongValueWithProperHashCode()); |
| } |
| |
| @Override |
| public LongValueWithProperHashCode copy(LongValueWithProperHashCode from, LongValueWithProperHashCode reuse) { |
| reuse.setValue(from.getValue()); |
| return reuse; |
| } |
| |
| @Override |
| public int getLength() { |
| return 8; |
| } |
| |
| @Override |
| public void serialize(LongValueWithProperHashCode record, DataOutputView target) throws IOException { |
| record.write(target); |
| } |
| |
| @Override |
| public LongValueWithProperHashCode deserialize(DataInputView source) throws IOException { |
| return deserialize(new LongValueWithProperHashCode(), source); |
| } |
| |
| @Override |
| public LongValueWithProperHashCode deserialize(LongValueWithProperHashCode reuse, DataInputView source) throws IOException { |
| reuse.read(source); |
| return reuse; |
| } |
| |
| @Override |
| public void copy(DataInputView source, DataOutputView target) throws IOException { |
| target.writeLong(source.readLong()); |
| } |
| |
| @Override |
| public boolean canEqual(Object obj) { |
| return obj instanceof LongValueWithProperHashCodeSerializer; |
| } |
| |
| @Override |
| protected boolean isCompatibleSerializationFormatIdentifier(String identifier) { |
| return super.isCompatibleSerializationFormatIdentifier(identifier) |
| || identifier.equals(LongSerializer.class.getCanonicalName()); |
| } |
| } |
| } |