| /** |
| * 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.avro.specific; |
| |
| import java.lang.reflect.Constructor; |
| |
| import org.apache.avro.Schema; |
| import org.apache.avro.data.ErrorBuilder; |
| import org.apache.avro.data.RecordBuilderBase; |
| |
| /** |
| * Abstract base class for specific ErrorBuilder implementations. |
| * Not thread-safe. |
| */ |
| abstract public class SpecificErrorBuilderBase<T extends SpecificExceptionBase> |
| extends RecordBuilderBase<T> implements ErrorBuilder<T> { |
| private Constructor<T> errorConstructor; |
| private Object value; |
| private boolean hasValue; |
| private Throwable cause; |
| private boolean hasCause; |
| |
| /** |
| * Creates a SpecificErrorBuilderBase for building errors of the given type. |
| * @param schema the schema associated with the error class. |
| */ |
| protected SpecificErrorBuilderBase(Schema schema) { |
| super(schema, SpecificData.get()); |
| } |
| |
| /** |
| * SpecificErrorBuilderBase copy constructor. |
| * @param other SpecificErrorBuilderBase instance to copy. |
| */ |
| protected SpecificErrorBuilderBase(SpecificErrorBuilderBase<T> other) { |
| super(other, SpecificData.get()); |
| this.errorConstructor = other.errorConstructor; |
| this.value = other.value; |
| this.hasValue = other.hasValue; |
| this.cause = other.cause; |
| this.hasCause = other.hasCause; |
| } |
| |
| /** |
| * Creates a SpecificErrorBuilderBase by copying an existing error instance. |
| * @param other the error instance to copy. |
| */ |
| protected SpecificErrorBuilderBase(T other) { |
| super(other.getSchema(), SpecificData.get()); |
| |
| Object otherValue = other.getValue(); |
| if (otherValue != null) { |
| setValue(otherValue); |
| } |
| |
| Throwable otherCause = other.getCause(); |
| if (otherCause != null) { |
| setCause(otherCause); |
| } |
| } |
| |
| @Override |
| public Object getValue() { |
| return value; |
| } |
| |
| @Override |
| public SpecificErrorBuilderBase<T> setValue(Object value) { |
| this.value = value; |
| hasValue = true; |
| return this; |
| } |
| |
| @Override |
| public boolean hasValue() { |
| return hasValue; |
| } |
| |
| @Override |
| public SpecificErrorBuilderBase<T> clearValue() { |
| value = null; |
| hasValue = false; |
| return this; |
| } |
| |
| @Override |
| public Throwable getCause() { |
| return cause; |
| } |
| |
| @Override |
| public SpecificErrorBuilderBase<T> setCause(Throwable cause) { |
| this.cause = cause; |
| hasCause = true; |
| return this; |
| } |
| |
| @Override |
| public boolean hasCause() { |
| return hasCause; |
| } |
| |
| @Override |
| public SpecificErrorBuilderBase<T> clearCause() { |
| cause = null; |
| hasCause = false; |
| return this; |
| } |
| } |