| package org.apache.rya.accumulo.mr; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import org.apache.hadoop.io.WritableComparable; |
| import org.apache.rya.api.domain.RyaType; |
| import org.apache.rya.api.utils.LiteralLanguageUtils; |
| import org.eclipse.rdf4j.model.IRI; |
| import org.eclipse.rdf4j.model.impl.SimpleValueFactory; |
| |
| public class RyaTypeWritable implements WritableComparable<RyaTypeWritable>{ |
| |
| private RyaType ryatype; |
| |
| /** |
| * Read part of a statement from an input stream. |
| * @param dataInput Stream for reading serialized statements. |
| * @return The next individual field, as a byte array. |
| * @throws IOException if reading from the stream fails. |
| */ |
| protected byte[] read(final DataInput dataInput) throws IOException { |
| if (dataInput.readBoolean()) { |
| final int len = dataInput.readInt(); |
| final byte[] bytes = new byte[len]; |
| dataInput.readFully(bytes); |
| return bytes; |
| }else { |
| return null; |
| } |
| } |
| |
| @Override |
| public void readFields(final DataInput dataInput) throws IOException { |
| final SimpleValueFactory vfi = SimpleValueFactory.getInstance(); |
| final String data = dataInput.readLine(); |
| final String dataTypeString = dataInput.readLine(); |
| final String language = dataInput.readLine(); |
| final IRI dataType = vfi.createIRI(dataTypeString); |
| final String validatedLanguage = LiteralLanguageUtils.validateLanguage(language, dataType); |
| ryatype.setData(data); |
| ryatype.setDataType(dataType); |
| ryatype.setLanguage(validatedLanguage); |
| |
| } |
| |
| @Override |
| public void write(final DataOutput dataOutput) throws IOException { |
| dataOutput.writeChars(ryatype.getData()); |
| dataOutput.writeChars(ryatype.getDataType().toString()); |
| dataOutput.writeChars(ryatype.getLanguage()); |
| } |
| |
| /** |
| * Gets the contained RyaStatement. |
| * @return The statement represented by this RyaStatementWritable. |
| */ |
| public RyaType getRyaType() { |
| return ryatype; |
| } |
| /** |
| * Sets the contained RyaStatement. |
| * @param ryaStatement The statement to be represented by this |
| * RyaStatementWritable. |
| */ |
| public void setRyaType(final RyaType ryatype) { |
| this.ryatype = ryatype; |
| } |
| |
| @Override |
| public int compareTo(final RyaTypeWritable o) { |
| return ryatype.compareTo(o.ryatype); |
| } |
| |
| /** |
| * Tests for equality using the equals method of the enclosed RyaType. |
| * @param o Object to compare with |
| * @return true if both objects are RyaTypeWritables containing equivalent |
| * RyaTypes. |
| */ |
| @Override |
| public boolean equals(final Object o) { |
| if (o == this) { |
| return true; |
| } |
| if (o == null || !(o instanceof RyaTypeWritable)) { |
| return false; |
| } |
| final RyaType rtThis = ryatype; |
| final RyaType rtOther = ((RyaTypeWritable) o).ryatype; |
| if (rtThis == null) { |
| return rtOther == null; |
| } |
| else { |
| return rtThis.equals(rtOther); |
| } |
| } |
| |
| @Override |
| public int hashCode() { |
| if (ryatype == null) { |
| return 0; |
| } |
| else { |
| return ryatype.hashCode(); |
| } |
| } |
| } |