| /* |
| * 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.drill.exec.store; |
| |
| import org.apache.drill.shaded.guava.com.google.common.collect.Lists; |
| import io.netty.buffer.DrillBuf; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.drill.common.expression.SchemaPath; |
| import org.apache.drill.exec.exception.SchemaChangeException; |
| import org.apache.drill.exec.expr.TypeHelper; |
| import org.apache.drill.exec.memory.BufferAllocator; |
| import org.apache.drill.exec.physical.impl.OutputMutator; |
| import org.apache.drill.exec.record.MaterializedField; |
| import org.apache.drill.exec.record.VectorContainer; |
| import org.apache.drill.exec.record.VectorWrapper; |
| import org.apache.drill.exec.util.CallBack; |
| import org.apache.drill.exec.vector.ValueVector; |
| |
| import org.apache.drill.shaded.guava.com.google.common.collect.Maps; |
| |
| public class TestOutputMutator implements OutputMutator, Iterable<VectorWrapper<?>> { |
| static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(TestOutputMutator.class); |
| |
| private final VectorContainer container = new VectorContainer(); |
| private final Map<MaterializedField, ValueVector> fieldVectorMap = Maps.newHashMap(); |
| private final BufferAllocator allocator; |
| |
| public TestOutputMutator(BufferAllocator allocator) { |
| this.allocator = allocator; |
| } |
| |
| public void removeField(MaterializedField field) throws SchemaChangeException { |
| ValueVector vector = fieldVectorMap.remove(field); |
| if (vector == null) { |
| throw new SchemaChangeException("Failure attempting to remove an unknown field."); |
| } |
| container.remove(vector); |
| vector.close(); |
| } |
| |
| public void addField(ValueVector vector) { |
| container.add(vector); |
| fieldVectorMap.put(vector.getField(), vector); |
| } |
| |
| private void replace(ValueVector newVector, SchemaPath schemaPath) { |
| List<ValueVector> vectors = Lists.newArrayList(); |
| for (VectorWrapper w : container) { |
| ValueVector vector = w.getValueVector(); |
| if (vector.getField().getName().equals(schemaPath.getRootSegmentPath())) { |
| vectors.add(newVector); |
| } else { |
| vectors.add(w.getValueVector()); |
| } |
| container.remove(vector); |
| } |
| container.addCollection(vectors); |
| } |
| |
| public Iterator<VectorWrapper<?>> iterator() { |
| return container.iterator(); |
| } |
| |
| public void clear() { |
| |
| } |
| |
| @Override |
| public boolean isNewSchema() { |
| return false; |
| } |
| |
| @Override |
| public void allocate(int recordCount) { |
| return; |
| } |
| |
| @Override |
| public <T extends ValueVector> T addField(MaterializedField field, Class<T> clazz) throws SchemaChangeException { |
| ValueVector v = TypeHelper.getNewVector(field, allocator); |
| if (!clazz.isAssignableFrom(v.getClass())) { |
| throw new SchemaChangeException(String.format("The class that was provided %s does not correspond to the expected vector type of %s.", clazz.getSimpleName(), v.getClass().getSimpleName())); |
| } |
| addField(v); |
| return (T) v; |
| } |
| |
| @Override |
| public DrillBuf getManagedBuffer() { |
| return allocator.buffer(255); |
| } |
| |
| @Override |
| public CallBack getCallBack() { |
| return null; |
| } |
| |
| public VectorContainer getContainer() { |
| return container; |
| } |
| |
| } |