| /* |
| * 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.accumulo.core.clientImpl; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.DataInput; |
| import java.io.DataInputStream; |
| import java.io.DataOutput; |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| import java.io.UncheckedIOException; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| import org.apache.accumulo.core.client.IteratorSetting; |
| import org.apache.accumulo.core.client.admin.CompactionConfig; |
| import org.apache.accumulo.core.client.admin.PluginConfig; |
| import org.apache.hadoop.io.Text; |
| |
| import com.google.common.base.Preconditions; |
| |
| public class UserCompactionUtils { |
| |
| private static final int MAGIC = 0x02040810; |
| private static final int SELECTOR_MAGIC = 0xae9270bf; |
| private static final int CONFIGURER_MAGIC = 0xf93e570a; |
| |
| public static final PluginConfig DEFAULT_CONFIGURER = new PluginConfig("", Map.of()); |
| public static final PluginConfig DEFAULT_SELECTOR = new PluginConfig("", Map.of()); |
| |
| public static void encode(DataOutput dout, Map<String,String> options) { |
| try { |
| dout.writeInt(options.size()); |
| |
| for (Entry<String,String> entry : options.entrySet()) { |
| dout.writeUTF(entry.getKey()); |
| dout.writeUTF(entry.getValue()); |
| } |
| } catch (IOException e) { |
| throw new UncheckedIOException(e); |
| } |
| } |
| |
| public static void encode(DataOutput dout, int magic, int version, String className, |
| Map<String,String> options) { |
| |
| try { |
| dout.writeInt(magic); |
| dout.writeByte(version); |
| |
| dout.writeUTF(className); |
| encode(dout, options); |
| |
| } catch (IOException e) { |
| throw new UncheckedIOException(e); |
| } |
| } |
| |
| public static interface Encoder<T> { |
| public void encode(DataOutput dout, T p); |
| } |
| |
| public static <T> byte[] encode(T csc, Encoder<T> encoder) { |
| |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| DataOutputStream dos = new DataOutputStream(baos); |
| |
| try { |
| encoder.encode(dos, csc); |
| dos.close(); |
| return baos.toByteArray(); |
| } catch (IOException ioe) { |
| throw new UncheckedIOException(ioe); |
| } |
| } |
| |
| public static class PluginConfigData { |
| String className; |
| Map<String,String> opts; |
| } |
| |
| public static Map<String,String> decodeMap(DataInput din) { |
| try { |
| int numEntries = din.readInt(); |
| |
| var opts = new HashMap<String,String>(); |
| |
| for (int i = 0; i < numEntries; i++) { |
| String k = din.readUTF(); |
| String v = din.readUTF(); |
| opts.put(k, v); |
| } |
| |
| return opts; |
| } catch (IOException ioe) { |
| throw new UncheckedIOException(ioe); |
| } |
| } |
| |
| public static PluginConfigData decode(DataInput din, int magic, int version) { |
| |
| try { |
| if (din.readInt() != magic) { |
| throw new IllegalArgumentException("Unexpected MAGIC "); |
| } |
| |
| if (din.readByte() != version) { |
| throw new IllegalArgumentException("Unexpected version"); |
| } |
| |
| var pcd = new PluginConfigData(); |
| |
| pcd.className = din.readUTF(); |
| int numEntries = din.readInt(); |
| |
| pcd.opts = new HashMap<>(); |
| |
| for (int i = 0; i < numEntries; i++) { |
| String k = din.readUTF(); |
| String v = din.readUTF(); |
| pcd.opts.put(k, v); |
| } |
| |
| return pcd; |
| } catch (IOException e) { |
| throw new UncheckedIOException(e); |
| } |
| } |
| |
| public static interface Decoder<T> { |
| T decode(DataInput di); |
| } |
| |
| public static <T> T decode(byte[] encodedCsc, Decoder<T> decoder) { |
| ByteArrayInputStream bais = new ByteArrayInputStream(encodedCsc); |
| DataInputStream dis = new DataInputStream(bais); |
| return decoder.decode(dis); |
| } |
| |
| public static void encodeSelector(DataOutput dout, PluginConfig csc) { |
| encode(dout, SELECTOR_MAGIC, 1, csc.getClassName(), csc.getOptions()); |
| } |
| |
| public static byte[] encodeSelector(PluginConfig csc) { |
| return encode(csc, UserCompactionUtils::encodeSelector); |
| } |
| |
| public static PluginConfig decodeSelector(DataInput di) { |
| var pcd = decode(di, SELECTOR_MAGIC, 1); |
| return new PluginConfig(pcd.className, pcd.opts); |
| } |
| |
| public static PluginConfig decodeSelector(byte[] bytes) { |
| return decode(bytes, UserCompactionUtils::decodeSelector); |
| } |
| |
| public static void encodeConfigurer(DataOutput dout, PluginConfig ccc) { |
| encode(dout, CONFIGURER_MAGIC, 1, ccc.getClassName(), ccc.getOptions()); |
| } |
| |
| public static byte[] encodeConfigurer(PluginConfig ccc) { |
| return encode(ccc, UserCompactionUtils::encodeConfigurer); |
| } |
| |
| public static PluginConfig decodeConfigurer(DataInput di) { |
| var pcd = decode(di, CONFIGURER_MAGIC, 1); |
| return new PluginConfig(pcd.className, pcd.opts); |
| } |
| |
| public static PluginConfig decodeConfigurer(byte[] bytes) { |
| return decode(bytes, UserCompactionUtils::decodeConfigurer); |
| } |
| |
| public static byte[] encode(Map<String,String> options) { |
| return encode(options, UserCompactionUtils::encode); |
| } |
| |
| public static Map<String,String> decodeMap(byte[] bytes) { |
| return decode(bytes, UserCompactionUtils::decodeMap); |
| } |
| |
| public static void encode(DataOutput dout, CompactionConfig cc) { |
| try { |
| dout.writeInt(MAGIC); |
| |
| dout.writeBoolean(cc.getStartRow() != null); |
| if (cc.getStartRow() != null) { |
| cc.getStartRow().write(dout); |
| } |
| |
| dout.writeBoolean(cc.getEndRow() != null); |
| if (cc.getEndRow() != null) { |
| cc.getEndRow().write(dout); |
| } |
| |
| dout.writeInt(cc.getIterators().size()); |
| for (IteratorSetting is : cc.getIterators()) { |
| is.write(dout); |
| } |
| |
| CompactionStrategyConfigUtil.encode(dout, cc); |
| |
| encodeConfigurer(dout, cc.getConfigurer()); |
| encodeSelector(dout, cc.getSelector()); |
| encode(dout, cc.getExecutionHints()); |
| |
| } catch (IOException ioe) { |
| throw new UncheckedIOException(ioe); |
| } |
| |
| } |
| |
| public static byte[] encode(CompactionConfig cc) { |
| return encode(cc, UserCompactionUtils::encode); |
| } |
| |
| public static CompactionConfig decodeCompactionConfig(DataInput din) { |
| try { |
| Preconditions.checkArgument(MAGIC == din.readInt()); |
| |
| CompactionConfig cc = new CompactionConfig(); |
| |
| if (din.readBoolean()) { |
| Text startRow = new Text(); |
| startRow.readFields(din); |
| cc.setStartRow(startRow); |
| } |
| |
| if (din.readBoolean()) { |
| Text endRow = new Text(); |
| endRow.readFields(din); |
| cc.setEndRow(endRow); |
| } |
| |
| int num = din.readInt(); |
| var iterators = new ArrayList<IteratorSetting>(num); |
| |
| for (int i = 0; i < num; i++) { |
| iterators.add(new IteratorSetting(din)); |
| } |
| |
| cc.setIterators(iterators); |
| |
| CompactionStrategyConfigUtil.decode(cc, din); |
| |
| var configurer = decodeConfigurer(din); |
| if (!isDefault(configurer)) { |
| cc.setConfigurer(configurer); |
| } |
| |
| var selector = decodeSelector(din); |
| if (!isDefault(selector)) { |
| cc.setSelector(selector); |
| } |
| |
| var hints = decodeMap(din); |
| cc.setExecutionHints(hints); |
| |
| return cc; |
| } catch (IOException ioe) { |
| throw new UncheckedIOException(ioe); |
| } |
| } |
| |
| public static boolean isDefault(PluginConfig configurer) { |
| return configurer.equals(DEFAULT_CONFIGURER); |
| } |
| |
| public static CompactionConfig decodeCompactionConfig(byte[] bytes) { |
| return decode(bytes, UserCompactionUtils::decodeCompactionConfig); |
| } |
| } |