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Posted to commits@accumulo.apache.org by el...@apache.org on 2013/11/23 02:41:58 UTC
[05/19] WIP Merge branch 'ACCUMULO-1854-merge' into
ACCUMULO-1854-1.5-merge
http://git-wip-us.apache.org/repos/asf/accumulo/blob/16a2e0f0/core/src/main/java/org/apache/accumulo/core/client/mapreduce/InputFormatBase.java
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diff --cc core/src/main/java/org/apache/accumulo/core/client/mapreduce/InputFormatBase.java
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--- a/core/src/main/java/org/apache/accumulo/core/client/mapreduce/InputFormatBase.java
+++ b/core/src/main/java/org/apache/accumulo/core/client/mapreduce/InputFormatBase.java
@@@ -1,1359 -1,0 +1,1293 @@@
+/*
+ * 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.client.mapreduce;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.lang.reflect.Method;
+import java.math.BigInteger;
+import java.net.InetAddress;
+import java.net.URLDecoder;
+import java.net.URLEncoder;
+import java.nio.ByteBuffer;
++import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+import java.util.StringTokenizer;
+
+import org.apache.accumulo.core.Constants;
+import org.apache.accumulo.core.client.AccumuloException;
+import org.apache.accumulo.core.client.AccumuloSecurityException;
+import org.apache.accumulo.core.client.ClientSideIteratorScanner;
+import org.apache.accumulo.core.client.Connector;
+import org.apache.accumulo.core.client.Instance;
+import org.apache.accumulo.core.client.IsolatedScanner;
+import org.apache.accumulo.core.client.IteratorSetting;
+import org.apache.accumulo.core.client.RowIterator;
+import org.apache.accumulo.core.client.Scanner;
+import org.apache.accumulo.core.client.TableDeletedException;
+import org.apache.accumulo.core.client.TableNotFoundException;
+import org.apache.accumulo.core.client.TableOfflineException;
+import org.apache.accumulo.core.client.ZooKeeperInstance;
+import org.apache.accumulo.core.client.impl.OfflineScanner;
+import org.apache.accumulo.core.client.impl.Tables;
+import org.apache.accumulo.core.client.impl.TabletLocator;
+import org.apache.accumulo.core.client.mapreduce.lib.util.InputConfigurator;
+import org.apache.accumulo.core.client.mock.MockInstance;
+import org.apache.accumulo.core.client.security.tokens.AuthenticationToken;
+import org.apache.accumulo.core.client.security.tokens.PasswordToken;
+import org.apache.accumulo.core.data.ByteSequence;
+import org.apache.accumulo.core.data.Key;
+import org.apache.accumulo.core.data.KeyExtent;
+import org.apache.accumulo.core.data.PartialKey;
+import org.apache.accumulo.core.data.Range;
+import org.apache.accumulo.core.data.Value;
+import org.apache.accumulo.core.iterators.user.VersioningIterator;
+import org.apache.accumulo.core.master.state.tables.TableState;
+import org.apache.accumulo.core.security.Authorizations;
+import org.apache.accumulo.core.security.CredentialHelper;
+import org.apache.accumulo.core.security.thrift.TCredentials;
+import org.apache.accumulo.core.util.Pair;
+import org.apache.accumulo.core.util.UtilWaitThread;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.io.Text;
+import org.apache.hadoop.io.Writable;
+import org.apache.hadoop.mapreduce.InputFormat;
+import org.apache.hadoop.mapreduce.InputSplit;
+import org.apache.hadoop.mapreduce.Job;
+import org.apache.hadoop.mapreduce.JobContext;
+import org.apache.hadoop.mapreduce.RecordReader;
+import org.apache.hadoop.mapreduce.TaskAttemptContext;
+import org.apache.log4j.Level;
+import org.apache.log4j.Logger;
+
+/**
+ * This abstract {@link InputFormat} class allows MapReduce jobs to use Accumulo as the source of K,V pairs.
+ * <p>
+ * Subclasses must implement a {@link #createRecordReader(InputSplit, TaskAttemptContext)} to provide a {@link RecordReader} for K,V.
+ * <p>
+ * A static base class, RecordReaderBase, is provided to retrieve Accumulo {@link Key}/{@link Value} pairs, but one must implement its
+ * {@link RecordReaderBase#nextKeyValue()} to transform them to the desired generic types K,V.
+ * <p>
+ * See {@link AccumuloInputFormat} for an example implementation.
+ */
+public abstract class InputFormatBase<K,V> extends InputFormat<K,V> {
+
+ private static final Class<?> CLASS = AccumuloInputFormat.class;
+ protected static final Logger log = Logger.getLogger(CLASS);
+
+ /**
+ * Sets the connector information needed to communicate with Accumulo in this job.
+ *
+ * <p>
+ * <b>WARNING:</b> The serialized token is stored in the configuration and shared with all MapReduce tasks. It is BASE64 encoded to provide a charset safe
+ * conversion to a string, and is not intended to be secure.
+ *
+ * @param job
+ * the Hadoop job instance to be configured
+ * @param principal
+ * a valid Accumulo user name (user must have Table.CREATE permission)
+ * @param token
+ * the user's password
+ * @throws AccumuloSecurityException
+ * @since 1.5.0
+ */
+ public static void setConnectorInfo(Job job, String principal, AuthenticationToken token) throws AccumuloSecurityException {
+ InputConfigurator.setConnectorInfo(CLASS, job.getConfiguration(), principal, token);
+ }
+
+ /**
+ * Determines if the connector has been configured.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @return true if the connector has been configured, false otherwise
+ * @since 1.5.0
+ * @see #setConnectorInfo(Job, String, AuthenticationToken)
+ */
+ protected static Boolean isConnectorInfoSet(JobContext context) {
+ return InputConfigurator.isConnectorInfoSet(CLASS, getConfiguration(context));
+ }
+
+ /**
+ * Gets the user name from the configuration.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @return the user name
+ * @since 1.5.0
+ * @see #setConnectorInfo(Job, String, AuthenticationToken)
+ */
+ protected static String getPrincipal(JobContext context) {
+ return InputConfigurator.getPrincipal(CLASS, getConfiguration(context));
+ }
+
+ /**
+ * Gets the serialized token class from the configuration.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @return the user name
+ * @since 1.5.0
+ * @see #setConnectorInfo(Job, String, AuthenticationToken)
+ */
+ protected static String getTokenClass(JobContext context) {
+ return InputConfigurator.getTokenClass(CLASS, getConfiguration(context));
+ }
+
+ /**
+ * Gets the password from the configuration. WARNING: The password is stored in the Configuration and shared with all MapReduce tasks; It is BASE64 encoded to
+ * provide a charset safe conversion to a string, and is not intended to be secure.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @return the decoded user password
+ * @since 1.5.0
+ * @see #setConnectorInfo(Job, String, AuthenticationToken)
+ */
+ protected static byte[] getToken(JobContext context) {
+ return InputConfigurator.getToken(CLASS, getConfiguration(context));
+ }
+
+ /**
+ * Configures a {@link ZooKeeperInstance} for this job.
+ *
+ * @param job
+ * the Hadoop job instance to be configured
+ * @param instanceName
+ * the Accumulo instance name
+ * @param zooKeepers
+ * a comma-separated list of zookeeper servers
+ * @since 1.5.0
+ */
+ public static void setZooKeeperInstance(Job job, String instanceName, String zooKeepers) {
+ InputConfigurator.setZooKeeperInstance(CLASS, job.getConfiguration(), instanceName, zooKeepers);
+ }
+
+ /**
+ * Configures a {@link MockInstance} for this job.
+ *
+ * @param job
+ * the Hadoop job instance to be configured
+ * @param instanceName
+ * the Accumulo instance name
+ * @since 1.5.0
+ */
+ public static void setMockInstance(Job job, String instanceName) {
+ InputConfigurator.setMockInstance(CLASS, job.getConfiguration(), instanceName);
+ }
+
+ /**
+ * Initializes an Accumulo {@link Instance} based on the configuration.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @return an Accumulo instance
+ * @since 1.5.0
+ * @see #setZooKeeperInstance(Job, String, String)
+ * @see #setMockInstance(Job, String)
+ */
+ protected static Instance getInstance(JobContext context) {
+ return InputConfigurator.getInstance(CLASS, getConfiguration(context));
+ }
+
+ /**
+ * Sets the log level for this job.
+ *
+ * @param job
+ * the Hadoop job instance to be configured
+ * @param level
+ * the logging level
+ * @since 1.5.0
+ */
+ public static void setLogLevel(Job job, Level level) {
+ InputConfigurator.setLogLevel(CLASS, job.getConfiguration(), level);
+ }
+
+ /**
+ * Gets the log level from this configuration.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @return the log level
+ * @since 1.5.0
+ * @see #setLogLevel(Job, Level)
+ */
+ protected static Level getLogLevel(JobContext context) {
+ return InputConfigurator.getLogLevel(CLASS, getConfiguration(context));
+ }
+
+ /**
+ * Sets the name of the input table, over which this job will scan.
+ *
+ * @param job
+ * the Hadoop job instance to be configured
+ * @param tableName
+ * the table to use when the tablename is null in the write call
+ * @since 1.5.0
+ */
+ public static void setInputTableName(Job job, String tableName) {
+ InputConfigurator.setInputTableName(CLASS, job.getConfiguration(), tableName);
+ }
+
+ /**
+ * Gets the table name from the configuration.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @return the table name
+ * @since 1.5.0
+ * @see #setInputTableName(Job, String)
+ */
+ protected static String getInputTableName(JobContext context) {
+ return InputConfigurator.getInputTableName(CLASS, getConfiguration(context));
+ }
+
+ /**
+ * Sets the {@link Authorizations} used to scan. Must be a subset of the user's authorization. Defaults to the empty set.
+ *
+ * @param job
+ * the Hadoop job instance to be configured
+ * @param auths
+ * the user's authorizations
+ * @since 1.5.0
+ */
+ public static void setScanAuthorizations(Job job, Authorizations auths) {
+ InputConfigurator.setScanAuthorizations(CLASS, job.getConfiguration(), auths);
+ }
+
+ /**
+ * Gets the authorizations to set for the scans from the configuration.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @return the Accumulo scan authorizations
+ * @since 1.5.0
+ * @see #setScanAuthorizations(Job, Authorizations)
+ */
+ protected static Authorizations getScanAuthorizations(JobContext context) {
+ return InputConfigurator.getScanAuthorizations(CLASS, getConfiguration(context));
+ }
+
+ /**
+ * Sets the input ranges to scan for this job. If not set, the entire table will be scanned.
+ *
+ * @param job
+ * the Hadoop job instance to be configured
+ * @param ranges
+ * the ranges that will be mapped over
+ * @since 1.5.0
+ */
+ public static void setRanges(Job job, Collection<Range> ranges) {
+ InputConfigurator.setRanges(CLASS, job.getConfiguration(), ranges);
+ }
+
+ /**
+ * Gets the ranges to scan over from a job.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @return the ranges
+ * @throws IOException
+ * if the ranges have been encoded improperly
+ * @since 1.5.0
+ * @see #setRanges(Job, Collection)
+ */
+ protected static List<Range> getRanges(JobContext context) throws IOException {
+ return InputConfigurator.getRanges(CLASS, getConfiguration(context));
+ }
+
+ /**
+ * Restricts the columns that will be mapped over for this job.
+ *
+ * @param job
+ * the Hadoop job instance to be configured
+ * @param columnFamilyColumnQualifierPairs
+ * a pair of {@link Text} objects corresponding to column family and column qualifier. If the column qualifier is null, the entire column family is
+ * selected. An empty set is the default and is equivalent to scanning the all columns.
+ * @since 1.5.0
+ */
+ public static void fetchColumns(Job job, Collection<Pair<Text,Text>> columnFamilyColumnQualifierPairs) {
+ InputConfigurator.fetchColumns(CLASS, job.getConfiguration(), columnFamilyColumnQualifierPairs);
+ }
+
+ /**
+ * Gets the columns to be mapped over from this job.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @return a set of columns
+ * @since 1.5.0
+ * @see #fetchColumns(Job, Collection)
+ */
+ protected static Set<Pair<Text,Text>> getFetchedColumns(JobContext context) {
+ return InputConfigurator.getFetchedColumns(CLASS, getConfiguration(context));
+ }
+
+ /**
+ * Encode an iterator on the input for this job.
+ *
+ * @param job
+ * the Hadoop job instance to be configured
+ * @param cfg
+ * the configuration of the iterator
+ * @since 1.5.0
+ */
+ public static void addIterator(Job job, IteratorSetting cfg) {
+ InputConfigurator.addIterator(CLASS, job.getConfiguration(), cfg);
+ }
+
+ /**
+ * Gets a list of the iterator settings (for iterators to apply to a scanner) from this configuration.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @return a list of iterators
+ * @since 1.5.0
+ * @see #addIterator(Job, IteratorSetting)
+ */
+ protected static List<IteratorSetting> getIterators(JobContext context) {
+ return InputConfigurator.getIterators(CLASS, getConfiguration(context));
+ }
+
+ /**
+ * Controls the automatic adjustment of ranges for this job. This feature merges overlapping ranges, then splits them to align with tablet boundaries.
+ * Disabling this feature will cause exactly one Map task to be created for each specified range. The default setting is enabled. *
+ *
+ * <p>
+ * By default, this feature is <b>enabled</b>.
+ *
+ * @param job
+ * the Hadoop job instance to be configured
+ * @param enableFeature
+ * the feature is enabled if true, disabled otherwise
+ * @see #setRanges(Job, Collection)
+ * @since 1.5.0
+ */
+ public static void setAutoAdjustRanges(Job job, boolean enableFeature) {
+ InputConfigurator.setAutoAdjustRanges(CLASS, job.getConfiguration(), enableFeature);
+ }
+
+ /**
+ * Determines whether a configuration has auto-adjust ranges enabled.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @return false if the feature is disabled, true otherwise
+ * @since 1.5.0
+ * @see #setAutoAdjustRanges(Job, boolean)
+ */
+ protected static boolean getAutoAdjustRanges(JobContext context) {
+ return InputConfigurator.getAutoAdjustRanges(CLASS, getConfiguration(context));
+ }
+
+ /**
+ * Controls the use of the {@link IsolatedScanner} in this job.
+ *
+ * <p>
+ * By default, this feature is <b>disabled</b>.
+ *
+ * @param job
+ * the Hadoop job instance to be configured
+ * @param enableFeature
+ * the feature is enabled if true, disabled otherwise
+ * @since 1.5.0
+ */
+ public static void setScanIsolation(Job job, boolean enableFeature) {
+ InputConfigurator.setScanIsolation(CLASS, job.getConfiguration(), enableFeature);
+ }
+
+ /**
+ * Determines whether a configuration has isolation enabled.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @return true if the feature is enabled, false otherwise
+ * @since 1.5.0
+ * @see #setScanIsolation(Job, boolean)
+ */
+ protected static boolean isIsolated(JobContext context) {
+ return InputConfigurator.isIsolated(CLASS, getConfiguration(context));
+ }
+
+ /**
+ * Controls the use of the {@link ClientSideIteratorScanner} in this job. Enabling this feature will cause the iterator stack to be constructed within the Map
+ * task, rather than within the Accumulo TServer. To use this feature, all classes needed for those iterators must be available on the classpath for the task.
+ *
+ * <p>
+ * By default, this feature is <b>disabled</b>.
+ *
+ * @param job
+ * the Hadoop job instance to be configured
+ * @param enableFeature
+ * the feature is enabled if true, disabled otherwise
+ * @since 1.5.0
+ */
+ public static void setLocalIterators(Job job, boolean enableFeature) {
+ InputConfigurator.setLocalIterators(CLASS, job.getConfiguration(), enableFeature);
+ }
+
+ /**
+ * Determines whether a configuration uses local iterators.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @return true if the feature is enabled, false otherwise
+ * @since 1.5.0
+ * @see #setLocalIterators(Job, boolean)
+ */
+ protected static boolean usesLocalIterators(JobContext context) {
+ return InputConfigurator.usesLocalIterators(CLASS, getConfiguration(context));
+ }
+
+ /**
+ * <p>
+ * Enable reading offline tables. By default, this feature is disabled and only online tables are scanned. This will make the map reduce job directly read the
+ * table's files. If the table is not offline, then the job will fail. If the table comes online during the map reduce job, it is likely that the job will
+ * fail.
+ *
+ * <p>
+ * To use this option, the map reduce user will need access to read the Accumulo directory in HDFS.
+ *
+ * <p>
+ * Reading the offline table will create the scan time iterator stack in the map process. So any iterators that are configured for the table will need to be
+ * on the mapper's classpath. The accumulo-site.xml may need to be on the mapper's classpath if HDFS or the Accumulo directory in HDFS are non-standard.
+ *
+ * <p>
+ * One way to use this feature is to clone a table, take the clone offline, and use the clone as the input table for a map reduce job. If you plan to map
+ * reduce over the data many times, it may be better to the compact the table, clone it, take it offline, and use the clone for all map reduce jobs. The
+ * reason to do this is that compaction will reduce each tablet in the table to one file, and it is faster to read from one file.
+ *
+ * <p>
+ * There are two possible advantages to reading a tables file directly out of HDFS. First, you may see better read performance. Second, it will support
+ * speculative execution better. When reading an online table speculative execution can put more load on an already slow tablet server.
+ *
+ * <p>
+ * By default, this feature is <b>disabled</b>.
+ *
+ * @param job
+ * the Hadoop job instance to be configured
+ * @param enableFeature
+ * the feature is enabled if true, disabled otherwise
+ * @since 1.5.0
+ */
+ public static void setOfflineTableScan(Job job, boolean enableFeature) {
+ InputConfigurator.setOfflineTableScan(CLASS, job.getConfiguration(), enableFeature);
+ }
+
+ /**
+ * Determines whether a configuration has the offline table scan feature enabled.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @return true if the feature is enabled, false otherwise
+ * @since 1.5.0
+ * @see #setOfflineTableScan(Job, boolean)
+ */
+ protected static boolean isOfflineScan(JobContext context) {
+ return InputConfigurator.isOfflineScan(CLASS, getConfiguration(context));
+ }
+
+ /**
+ * Initializes an Accumulo {@link TabletLocator} based on the configuration.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @return an Accumulo tablet locator
+ * @throws TableNotFoundException
+ * if the table name set on the configuration doesn't exist
+ * @since 1.5.0
+ */
+ protected static TabletLocator getTabletLocator(JobContext context) throws TableNotFoundException {
+ return InputConfigurator.getTabletLocator(CLASS, getConfiguration(context));
+ }
+
+ // InputFormat doesn't have the equivalent of OutputFormat's checkOutputSpecs(JobContext job)
+ /**
+ * Check whether a configuration is fully configured to be used with an Accumulo {@link org.apache.hadoop.mapreduce.InputFormat}.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @throws IOException
+ * if the context is improperly configured
+ * @since 1.5.0
+ */
+ protected static void validateOptions(JobContext context) throws IOException {
+ InputConfigurator.validateOptions(CLASS, getConfiguration(context));
+ }
+
+ /**
+ * An abstract base class to be used to create {@link RecordReader} instances that convert from Accumulo {@link Key}/{@link Value} pairs to the user's K/V
+ * types.
+ *
+ * Subclasses must implement {@link #nextKeyValue()} and use it to update the following variables:
+ * <ul>
+ * <li>K {@link #currentK}</li>
+ * <li>V {@link #currentV}</li>
+ * <li>Key {@link #currentKey} (used for progress reporting)</li>
+ * <li>int {@link #numKeysRead} (used for progress reporting)</li>
+ * </ul>
+ */
+ protected abstract static class RecordReaderBase<K,V> extends RecordReader<K,V> {
+ protected long numKeysRead;
+ protected Iterator<Entry<Key,Value>> scannerIterator;
+ protected RangeInputSplit split;
+
+ /**
+ * Apply the configured iterators from the configuration to the scanner.
+ *
+ * @param context
+ * the Hadoop context for the configured job
+ * @param scanner
+ * the scanner to configure
+ */
- protected void setupIterators(TaskAttemptContext context, Scanner scanner) {
- List<IteratorSetting> iterators = getIterators(context);
++ protected void setupIterators(List<IteratorSetting> iterators, Scanner scanner) {
+ for (IteratorSetting iterator : iterators) {
+ scanner.addScanIterator(iterator);
+ }
+ }
+
+ /**
+ * Initialize a scanner over the given input split using this task attempt configuration.
+ */
+ @Override
+ public void initialize(InputSplit inSplit, TaskAttemptContext attempt) throws IOException {
+ Scanner scanner;
+ split = (RangeInputSplit) inSplit;
- log.debug("Initializing input split: " + split.range);
- Instance instance = getInstance(attempt);
- String principal = getPrincipal(attempt);
- String tokenClass = getTokenClass(attempt);
- byte[] token = getToken(attempt);
- Authorizations authorizations = getScanAuthorizations(attempt);
++ log.debug("Initializing input split: " + split.getRange());
++
++ Instance instance = split.getInstance();
++ if (null == instance) {
++ instance = getInstance(attempt);
++ }
++
++ String principal = split.getPrincipal();
++ if (null == principal) {
++ principal = getPrincipal(attempt);
++ }
++
++ AuthenticationToken token = split.getToken();
++ if (null == token) {
++ String tokenClass = getTokenClass(attempt);
++ byte[] tokenBytes = getToken(attempt);
++ try {
++ token = CredentialHelper.extractToken(tokenClass, tokenBytes);
++ } catch (AccumuloSecurityException e) {
++ throw new IOException(e);
++ }
++ }
++
++ Authorizations authorizations = split.getAuths();
++ if (null == authorizations) {
++ authorizations = getScanAuthorizations(attempt);
++ }
++
++ String table = split.getTable();
++ if (null == table) {
++ table = getInputTableName(attempt);
++ }
++
++ Boolean isOffline = split.isOffline();
++ if (null == isOffline) {
++ isOffline = isOfflineScan(attempt);
++ }
++
++ Boolean isIsolated = split.isIsolatedScan();
++ if (null == isIsolated) {
++ isIsolated = isIsolated(attempt);
++ }
++
++ Boolean usesLocalIterators = split.usesLocalIterators();
++ if (null == usesLocalIterators) {
++ usesLocalIterators = usesLocalIterators(attempt);
++ }
++
++ List<IteratorSetting> iterators = split.getIterators();
++ if (null == iterators) {
++ iterators = getIterators(attempt);
++ }
++
++ Set<Pair<Text,Text>> columns = split.getFetchedColumns();
++ if (null == columns) {
++ columns = getFetchedColumns(attempt);
++ }
+
+ try {
+ log.debug("Creating connector with user: " + principal);
- Connector conn = instance.getConnector(principal, CredentialHelper.extractToken(tokenClass, token));
- log.debug("Creating scanner for table: " + getInputTableName(attempt));
++ Connector conn = instance.getConnector(principal, token);
++ log.debug("Creating scanner for table: " + table);
+ log.debug("Authorizations are: " + authorizations);
+ if (isOfflineScan(attempt)) {
- scanner = new OfflineScanner(instance, new TCredentials(principal, tokenClass, ByteBuffer.wrap(token), instance.getInstanceID()), Tables.getTableId(
- instance, getInputTableName(attempt)), authorizations);
++ String tokenClass = token.getClass().getCanonicalName();
++ ByteBuffer tokenBuffer = ByteBuffer.wrap(CredentialHelper.toBytes(token));
++ scanner = new OfflineScanner(instance, new TCredentials(principal, tokenClass, tokenBuffer, instance.getInstanceID()), Tables.getTableId(
++ instance, table), authorizations);
+ } else {
- scanner = conn.createScanner(getInputTableName(attempt), authorizations);
++ scanner = conn.createScanner(table, authorizations);
+ }
- if (isIsolated(attempt)) {
++ if (isIsolated) {
+ log.info("Creating isolated scanner");
+ scanner = new IsolatedScanner(scanner);
+ }
- if (usesLocalIterators(attempt)) {
++ if (usesLocalIterators) {
+ log.info("Using local iterators");
+ scanner = new ClientSideIteratorScanner(scanner);
+ }
- setupIterators(attempt, scanner);
++ setupIterators(iterators, scanner);
+ } catch (Exception e) {
+ throw new IOException(e);
+ }
+
+ // setup a scanner within the bounds of this split
- for (Pair<Text,Text> c : getFetchedColumns(attempt)) {
++ for (Pair<Text,Text> c : columns) {
+ if (c.getSecond() != null) {
+ log.debug("Fetching column " + c.getFirst() + ":" + c.getSecond());
+ scanner.fetchColumn(c.getFirst(), c.getSecond());
+ } else {
+ log.debug("Fetching column family " + c.getFirst());
+ scanner.fetchColumnFamily(c.getFirst());
+ }
+ }
+
- scanner.setRange(split.range);
++ scanner.setRange(split.getRange());
+
+ numKeysRead = 0;
+
+ // do this last after setting all scanner options
+ scannerIterator = scanner.iterator();
+ }
+
+ @Override
+ public void close() {}
+
+ @Override
+ public float getProgress() throws IOException {
+ if (numKeysRead > 0 && currentKey == null)
+ return 1.0f;
+ return split.getProgress(currentKey);
+ }
+
+ protected K currentK = null;
+ protected V currentV = null;
+ protected Key currentKey = null;
+ protected Value currentValue = null;
+
+ @Override
+ public K getCurrentKey() throws IOException, InterruptedException {
+ return currentK;
+ }
+
+ @Override
+ public V getCurrentValue() throws IOException, InterruptedException {
+ return currentV;
+ }
+ }
+
+ Map<String,Map<KeyExtent,List<Range>>> binOfflineTable(JobContext context, String tableName, List<Range> ranges) throws TableNotFoundException,
+ AccumuloException, AccumuloSecurityException {
+
+ Map<String,Map<KeyExtent,List<Range>>> binnedRanges = new HashMap<String,Map<KeyExtent,List<Range>>>();
+
+ Instance instance = getInstance(context);
+ Connector conn = instance.getConnector(getPrincipal(context), CredentialHelper.extractToken(getTokenClass(context), getToken(context)));
+ String tableId = Tables.getTableId(instance, tableName);
+
+ if (Tables.getTableState(instance, tableId) != TableState.OFFLINE) {
+ Tables.clearCache(instance);
+ if (Tables.getTableState(instance, tableId) != TableState.OFFLINE) {
+ throw new AccumuloException("Table is online " + tableName + "(" + tableId + ") cannot scan table in offline mode ");
+ }
+ }
+
+ for (Range range : ranges) {
+ Text startRow;
+
+ if (range.getStartKey() != null)
+ startRow = range.getStartKey().getRow();
+ else
+ startRow = new Text();
+
+ Range metadataRange = new Range(new KeyExtent(new Text(tableId), startRow, null).getMetadataEntry(), true, null, false);
+ Scanner scanner = conn.createScanner(Constants.METADATA_TABLE_NAME, Constants.NO_AUTHS);
+ Constants.METADATA_PREV_ROW_COLUMN.fetch(scanner);
+ scanner.fetchColumnFamily(Constants.METADATA_LAST_LOCATION_COLUMN_FAMILY);
+ scanner.fetchColumnFamily(Constants.METADATA_CURRENT_LOCATION_COLUMN_FAMILY);
+ scanner.fetchColumnFamily(Constants.METADATA_FUTURE_LOCATION_COLUMN_FAMILY);
+ scanner.setRange(metadataRange);
+
+ RowIterator rowIter = new RowIterator(scanner);
+
+ KeyExtent lastExtent = null;
+
+ while (rowIter.hasNext()) {
+ Iterator<Entry<Key,Value>> row = rowIter.next();
+ String last = "";
+ KeyExtent extent = null;
+ String location = null;
+
+ while (row.hasNext()) {
+ Entry<Key,Value> entry = row.next();
+ Key key = entry.getKey();
+
+ if (key.getColumnFamily().equals(Constants.METADATA_LAST_LOCATION_COLUMN_FAMILY)) {
+ last = entry.getValue().toString();
+ }
+
+ if (key.getColumnFamily().equals(Constants.METADATA_CURRENT_LOCATION_COLUMN_FAMILY)
+ || key.getColumnFamily().equals(Constants.METADATA_FUTURE_LOCATION_COLUMN_FAMILY)) {
+ location = entry.getValue().toString();
+ }
+
+ if (Constants.METADATA_PREV_ROW_COLUMN.hasColumns(key)) {
+ extent = new KeyExtent(key.getRow(), entry.getValue());
+ }
+
+ }
+
+ if (location != null)
+ return null;
+
+ if (!extent.getTableId().toString().equals(tableId)) {
+ throw new AccumuloException("Saw unexpected table Id " + tableId + " " + extent);
+ }
+
+ if (lastExtent != null && !extent.isPreviousExtent(lastExtent)) {
+ throw new AccumuloException(" " + lastExtent + " is not previous extent " + extent);
+ }
+
+ Map<KeyExtent,List<Range>> tabletRanges = binnedRanges.get(last);
+ if (tabletRanges == null) {
+ tabletRanges = new HashMap<KeyExtent,List<Range>>();
+ binnedRanges.put(last, tabletRanges);
+ }
+
+ List<Range> rangeList = tabletRanges.get(extent);
+ if (rangeList == null) {
+ rangeList = new ArrayList<Range>();
+ tabletRanges.put(extent, rangeList);
+ }
+
+ rangeList.add(range);
+
+ if (extent.getEndRow() == null || range.afterEndKey(new Key(extent.getEndRow()).followingKey(PartialKey.ROW))) {
+ break;
+ }
+
+ lastExtent = extent;
+ }
+
+ }
+
+ return binnedRanges;
+ }
+
+ /**
+ * Read the metadata table to get tablets and match up ranges to them.
+ */
+ @Override
+ public List<InputSplit> getSplits(JobContext context) throws IOException {
+ log.setLevel(getLogLevel(context));
+ validateOptions(context);
+
+ String tableName = getInputTableName(context);
+ boolean autoAdjust = getAutoAdjustRanges(context);
+ List<Range> ranges = autoAdjust ? Range.mergeOverlapping(getRanges(context)) : getRanges(context);
+
+ if (ranges.isEmpty()) {
+ ranges = new ArrayList<Range>(1);
+ ranges.add(new Range());
+ }
+
+ // get the metadata information for these ranges
+ Map<String,Map<KeyExtent,List<Range>>> binnedRanges = new HashMap<String,Map<KeyExtent,List<Range>>>();
+ TabletLocator tl;
+ try {
+ if (isOfflineScan(context)) {
+ binnedRanges = binOfflineTable(context, tableName, ranges);
+ while (binnedRanges == null) {
+ // Some tablets were still online, try again
+ UtilWaitThread.sleep(100 + (int) (Math.random() * 100)); // sleep randomly between 100 and 200 ms
+ binnedRanges = binOfflineTable(context, tableName, ranges);
+ }
+ } else {
+ Instance instance = getInstance(context);
+ String tableId = null;
+ tl = getTabletLocator(context);
+ // its possible that the cache could contain complete, but old information about a tables tablets... so clear it
+ tl.invalidateCache();
+ while (!tl.binRanges(ranges, binnedRanges,
+ new TCredentials(getPrincipal(context), getTokenClass(context), ByteBuffer.wrap(getToken(context)), getInstance(context).getInstanceID()))
+ .isEmpty()) {
+ if (!(instance instanceof MockInstance)) {
+ if (tableId == null)
+ tableId = Tables.getTableId(instance, tableName);
+ if (!Tables.exists(instance, tableId))
+ throw new TableDeletedException(tableId);
+ if (Tables.getTableState(instance, tableId) == TableState.OFFLINE)
+ throw new TableOfflineException(instance, tableId);
+ }
+ binnedRanges.clear();
+ log.warn("Unable to locate bins for specified ranges. Retrying.");
+ UtilWaitThread.sleep(100 + (int) (Math.random() * 100)); // sleep randomly between 100 and 200 ms
+ tl.invalidateCache();
+ }
+ }
+ } catch (Exception e) {
+ throw new IOException(e);
+ }
+
+ ArrayList<InputSplit> splits = new ArrayList<InputSplit>(ranges.size());
+ HashMap<Range,ArrayList<String>> splitsToAdd = null;
+
+ if (!autoAdjust)
+ splitsToAdd = new HashMap<Range,ArrayList<String>>();
+
+ HashMap<String,String> hostNameCache = new HashMap<String,String>();
+
+ for (Entry<String,Map<KeyExtent,List<Range>>> tserverBin : binnedRanges.entrySet()) {
+ String ip = tserverBin.getKey().split(":", 2)[0];
+ String location = hostNameCache.get(ip);
+ if (location == null) {
+ InetAddress inetAddress = InetAddress.getByName(ip);
+ location = inetAddress.getHostName();
+ hostNameCache.put(ip, location);
+ }
+
+ for (Entry<KeyExtent,List<Range>> extentRanges : tserverBin.getValue().entrySet()) {
+ Range ke = extentRanges.getKey().toDataRange();
+ for (Range r : extentRanges.getValue()) {
+ if (autoAdjust) {
+ // divide ranges into smaller ranges, based on the tablets
- splits.add(new RangeInputSplit(tableName, ke.clip(r), new String[] {location}));
++ splits.add(new RangeInputSplit(ke.clip(r), new String[] {location}));
+ } else {
+ // don't divide ranges
+ ArrayList<String> locations = splitsToAdd.get(r);
+ if (locations == null)
+ locations = new ArrayList<String>(1);
+ locations.add(location);
+ splitsToAdd.put(r, locations);
+ }
+ }
+ }
+ }
+
+ if (!autoAdjust)
+ for (Entry<Range,ArrayList<String>> entry : splitsToAdd.entrySet())
- splits.add(new RangeInputSplit(tableName, entry.getKey(), entry.getValue().toArray(new String[0])));
++ splits.add(new RangeInputSplit(entry.getKey(), entry.getValue().toArray(new String[0])));
+ return splits;
+ }
-
- /**
- * The Class RangeInputSplit. Encapsulates an Accumulo range for use in Map Reduce jobs.
- */
- public static class RangeInputSplit extends InputSplit implements Writable {
- private Range range;
- private String[] locations;
-
- public RangeInputSplit() {
- range = new Range();
- locations = new String[0];
- }
-
- public RangeInputSplit(RangeInputSplit split) throws IOException {
- this.setRange(split.getRange());
- this.setLocations(split.getLocations());
- }
-
- protected RangeInputSplit(String table, Range range, String[] locations) {
- this.range = range;
- this.locations = locations;
- }
-
- public Range getRange() {
- return range;
- }
-
- public void setRange(Range range) {
- this.range = range;
- }
-
- private static byte[] extractBytes(ByteSequence seq, int numBytes) {
- byte[] bytes = new byte[numBytes + 1];
- bytes[0] = 0;
- for (int i = 0; i < numBytes; i++) {
- if (i >= seq.length())
- bytes[i + 1] = 0;
- else
- bytes[i + 1] = seq.byteAt(i);
- }
- return bytes;
- }
-
- public static float getProgress(ByteSequence start, ByteSequence end, ByteSequence position) {
- int maxDepth = Math.min(Math.max(end.length(), start.length()), position.length());
- BigInteger startBI = new BigInteger(extractBytes(start, maxDepth));
- BigInteger endBI = new BigInteger(extractBytes(end, maxDepth));
- BigInteger positionBI = new BigInteger(extractBytes(position, maxDepth));
- return (float) (positionBI.subtract(startBI).doubleValue() / endBI.subtract(startBI).doubleValue());
- }
-
- public float getProgress(Key currentKey) {
- if (currentKey == null)
- return 0f;
- if (range.getStartKey() != null && range.getEndKey() != null) {
- if (!range.getStartKey().equals(range.getEndKey(), PartialKey.ROW)) {
- // just look at the row progress
- return getProgress(range.getStartKey().getRowData(), range.getEndKey().getRowData(), currentKey.getRowData());
- } else if (!range.getStartKey().equals(range.getEndKey(), PartialKey.ROW_COLFAM)) {
- // just look at the column family progress
- return getProgress(range.getStartKey().getColumnFamilyData(), range.getEndKey().getColumnFamilyData(), currentKey.getColumnFamilyData());
- } else if (!range.getStartKey().equals(range.getEndKey(), PartialKey.ROW_COLFAM_COLQUAL)) {
- // just look at the column qualifier progress
- return getProgress(range.getStartKey().getColumnQualifierData(), range.getEndKey().getColumnQualifierData(), currentKey.getColumnQualifierData());
- }
- }
- // if we can't figure it out, then claim no progress
- return 0f;
- }
-
- /**
- * This implementation of length is only an estimate, it does not provide exact values. Do not have your code rely on this return value.
- */
- @Override
- public long getLength() throws IOException {
- Text startRow = range.isInfiniteStartKey() ? new Text(new byte[] {Byte.MIN_VALUE}) : range.getStartKey().getRow();
- Text stopRow = range.isInfiniteStopKey() ? new Text(new byte[] {Byte.MAX_VALUE}) : range.getEndKey().getRow();
- int maxCommon = Math.min(7, Math.min(startRow.getLength(), stopRow.getLength()));
- long diff = 0;
-
- byte[] start = startRow.getBytes();
- byte[] stop = stopRow.getBytes();
- for (int i = 0; i < maxCommon; ++i) {
- diff |= 0xff & (start[i] ^ stop[i]);
- diff <<= Byte.SIZE;
- }
-
- if (startRow.getLength() != stopRow.getLength())
- diff |= 0xff;
-
- return diff + 1;
- }
-
- @Override
- public String[] getLocations() throws IOException {
- return locations;
- }
-
- public void setLocations(String[] locations) {
- this.locations = locations;
- }
-
- @Override
- public void readFields(DataInput in) throws IOException {
- range.readFields(in);
- int numLocs = in.readInt();
- locations = new String[numLocs];
- for (int i = 0; i < numLocs; ++i)
- locations[i] = in.readUTF();
- }
-
- @Override
- public void write(DataOutput out) throws IOException {
- range.write(out);
- out.writeInt(locations.length);
- for (int i = 0; i < locations.length; ++i)
- out.writeUTF(locations[i]);
- }
- }
-
++
+ // ----------------------------------------------------------------------------------------------------
+ // Everything below this line is deprecated and should go away in future versions
+ // ----------------------------------------------------------------------------------------------------
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #setScanIsolation(Job, boolean)} instead.
+ */
+ @Deprecated
+ public static void setIsolated(Configuration conf, boolean enable) {
+ InputConfigurator.setScanIsolation(CLASS, conf, enable);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #setLocalIterators(Job, boolean)} instead.
+ */
+ @Deprecated
+ public static void setLocalIterators(Configuration conf, boolean enable) {
+ InputConfigurator.setLocalIterators(CLASS, conf, enable);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #setConnectorInfo(Job, String, AuthenticationToken)}, {@link #setInputTableName(Job, String)}, and
+ * {@link #setScanAuthorizations(Job, Authorizations)} instead.
+ */
+ @Deprecated
+ public static void setInputInfo(Configuration conf, String user, byte[] passwd, String table, Authorizations auths) {
+ try {
+ InputConfigurator.setConnectorInfo(CLASS, conf, user, new PasswordToken(passwd));
+ } catch (AccumuloSecurityException e) {
+ throw new RuntimeException(e);
+ }
+ InputConfigurator.setInputTableName(CLASS, conf, table);
+ InputConfigurator.setScanAuthorizations(CLASS, conf, auths);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #setZooKeeperInstance(Job, String, String)} instead.
+ */
+ @Deprecated
+ public static void setZooKeeperInstance(Configuration conf, String instanceName, String zooKeepers) {
+ InputConfigurator.setZooKeeperInstance(CLASS, conf, instanceName, zooKeepers);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #setMockInstance(Job, String)} instead.
+ */
+ @Deprecated
+ public static void setMockInstance(Configuration conf, String instanceName) {
+ InputConfigurator.setMockInstance(CLASS, conf, instanceName);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #setRanges(Job, Collection)} instead.
+ */
+ @Deprecated
+ public static void setRanges(Configuration conf, Collection<Range> ranges) {
+ InputConfigurator.setRanges(CLASS, conf, ranges);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #setAutoAdjustRanges(Job, boolean)} instead.
+ */
+ @Deprecated
+ public static void disableAutoAdjustRanges(Configuration conf) {
+ InputConfigurator.setAutoAdjustRanges(CLASS, conf, false);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #addIterator(Job, IteratorSetting)} to add the {@link VersioningIterator} instead.
+ */
+ @Deprecated
+ public static void setMaxVersions(Configuration conf, int maxVersions) throws IOException {
+ IteratorSetting vers = new IteratorSetting(1, "vers", VersioningIterator.class);
+ try {
+ VersioningIterator.setMaxVersions(vers, maxVersions);
+ } catch (IllegalArgumentException e) {
+ throw new IOException(e);
+ }
+ InputConfigurator.addIterator(CLASS, conf, vers);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #setOfflineTableScan(Job, boolean)} instead.
+ */
+ @Deprecated
+ public static void setScanOffline(Configuration conf, boolean scanOff) {
+ InputConfigurator.setOfflineTableScan(CLASS, conf, scanOff);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #fetchColumns(Job, Collection)} instead.
+ */
+ @Deprecated
+ public static void fetchColumns(Configuration conf, Collection<Pair<Text,Text>> columnFamilyColumnQualifierPairs) {
+ InputConfigurator.fetchColumns(CLASS, conf, columnFamilyColumnQualifierPairs);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #setLogLevel(Job, Level)} instead.
+ */
+ @Deprecated
+ public static void setLogLevel(Configuration conf, Level level) {
+ InputConfigurator.setLogLevel(CLASS, conf, level);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #addIterator(Job, IteratorSetting)} instead.
+ */
+ @Deprecated
+ public static void addIterator(Configuration conf, IteratorSetting cfg) {
+ InputConfigurator.addIterator(CLASS, conf, cfg);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #isIsolated(JobContext)} instead.
+ */
+ @Deprecated
+ protected static boolean isIsolated(Configuration conf) {
+ return InputConfigurator.isIsolated(CLASS, conf);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #usesLocalIterators(JobContext)} instead.
+ */
+ @Deprecated
+ protected static boolean usesLocalIterators(Configuration conf) {
+ return InputConfigurator.usesLocalIterators(CLASS, conf);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #getPrincipal(JobContext)} instead.
+ */
+ @Deprecated
+ protected static String getPrincipal(Configuration conf) {
+ return InputConfigurator.getPrincipal(CLASS, conf);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #getToken(JobContext)} instead.
+ */
+ @Deprecated
+ protected static byte[] getToken(Configuration conf) {
+ return InputConfigurator.getToken(CLASS, conf);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #getInputTableName(JobContext)} instead.
+ */
+ @Deprecated
+ protected static String getTablename(Configuration conf) {
+ return InputConfigurator.getInputTableName(CLASS, conf);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #getScanAuthorizations(JobContext)} instead.
+ */
+ @Deprecated
+ protected static Authorizations getAuthorizations(Configuration conf) {
+ return InputConfigurator.getScanAuthorizations(CLASS, conf);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #getInstance(JobContext)} instead.
+ */
+ @Deprecated
+ protected static Instance getInstance(Configuration conf) {
+ return InputConfigurator.getInstance(CLASS, conf);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #getTabletLocator(JobContext)} instead.
+ */
+ @Deprecated
+ protected static TabletLocator getTabletLocator(Configuration conf) throws TableNotFoundException {
+ return InputConfigurator.getTabletLocator(CLASS, conf);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #getRanges(JobContext)} instead.
+ */
+ @Deprecated
+ protected static List<Range> getRanges(Configuration conf) throws IOException {
+ return InputConfigurator.getRanges(CLASS, conf);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #getFetchedColumns(JobContext)} instead.
+ */
+ @Deprecated
+ protected static Set<Pair<Text,Text>> getFetchedColumns(Configuration conf) {
+ return InputConfigurator.getFetchedColumns(CLASS, conf);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #getAutoAdjustRanges(JobContext)} instead.
+ */
+ @Deprecated
+ protected static boolean getAutoAdjustRanges(Configuration conf) {
+ return InputConfigurator.getAutoAdjustRanges(CLASS, conf);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #getLogLevel(JobContext)} instead.
+ */
+ @Deprecated
+ protected static Level getLogLevel(Configuration conf) {
+ return InputConfigurator.getLogLevel(CLASS, conf);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #validateOptions(JobContext)} instead.
+ */
+ @Deprecated
+ protected static void validateOptions(Configuration conf) throws IOException {
+ InputConfigurator.validateOptions(CLASS, conf);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #addIterator(Job, IteratorSetting)} to add the {@link VersioningIterator} instead.
+ */
+ @Deprecated
+ protected static int getMaxVersions(Configuration conf) {
+ // This is so convoluted, because the only reason to get the number of maxVersions is to construct the same type of IteratorSetting object we have to
+ // deconstruct to get at this option in the first place, but to preserve correct behavior, this appears necessary.
+ List<IteratorSetting> iteratorSettings = InputConfigurator.getIterators(CLASS, conf);
+ for (IteratorSetting setting : iteratorSettings) {
+ if ("vers".equals(setting.getName()) && 1 == setting.getPriority() && VersioningIterator.class.getName().equals(setting.getIteratorClass())) {
+ if (setting.getOptions().containsKey("maxVersions"))
+ return Integer.parseInt(setting.getOptions().get("maxVersions"));
+ else
+ return -1;
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #isOfflineScan(JobContext)} instead.
+ */
+ @Deprecated
+ protected static boolean isOfflineScan(Configuration conf) {
+ return InputConfigurator.isOfflineScan(CLASS, conf);
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #getIterators(JobContext)} instead.
+ */
+ @Deprecated
+ protected static List<AccumuloIterator> getIterators(Configuration conf) {
+ List<IteratorSetting> iteratorSettings = InputConfigurator.getIterators(CLASS, conf);
+ List<AccumuloIterator> deprecatedIterators = new ArrayList<AccumuloIterator>(iteratorSettings.size());
+ for (IteratorSetting setting : iteratorSettings) {
+ AccumuloIterator deprecatedIter = new AccumuloIterator(new String(setting.getPriority() + AccumuloIterator.FIELD_SEP + setting.getIteratorClass()
+ + AccumuloIterator.FIELD_SEP + setting.getName()));
+ deprecatedIterators.add(deprecatedIter);
+ }
+ return deprecatedIterators;
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link #getIterators(JobContext)} instead.
+ */
+ @Deprecated
+ protected static List<AccumuloIteratorOption> getIteratorOptions(Configuration conf) {
+ List<IteratorSetting> iteratorSettings = InputConfigurator.getIterators(CLASS, conf);
+ List<AccumuloIteratorOption> deprecatedIteratorOptions = new ArrayList<AccumuloIteratorOption>(iteratorSettings.size());
+ for (IteratorSetting setting : iteratorSettings) {
+ for (Entry<String,String> opt : setting.getOptions().entrySet()) {
+ String deprecatedOption;
+ try {
+ deprecatedOption = new String(setting.getName() + AccumuloIteratorOption.FIELD_SEP + URLEncoder.encode(opt.getKey(), "UTF-8")
+ + AccumuloIteratorOption.FIELD_SEP + URLEncoder.encode(opt.getValue(), "UTF-8"));
+ } catch (UnsupportedEncodingException e) {
+ throw new RuntimeException(e);
+ }
+ deprecatedIteratorOptions.add(new AccumuloIteratorOption(deprecatedOption));
+ }
+ }
+ return deprecatedIteratorOptions;
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link IteratorSetting} instead.
+ */
+ @Deprecated
+ static class AccumuloIterator {
+
+ private static final String FIELD_SEP = ":";
+
+ private int priority;
+ private String iteratorClass;
+ private String iteratorName;
+
+ public AccumuloIterator(int priority, String iteratorClass, String iteratorName) {
+ this.priority = priority;
+ this.iteratorClass = iteratorClass;
+ this.iteratorName = iteratorName;
+ }
+
+ // Parses out a setting given an string supplied from an earlier toString() call
+ public AccumuloIterator(String iteratorSetting) {
+ // Parse the string to expand the iterator
+ StringTokenizer tokenizer = new StringTokenizer(iteratorSetting, FIELD_SEP);
+ priority = Integer.parseInt(tokenizer.nextToken());
+ iteratorClass = tokenizer.nextToken();
+ iteratorName = tokenizer.nextToken();
+ }
+
+ public int getPriority() {
+ return priority;
+ }
+
+ public String getIteratorClass() {
+ return iteratorClass;
+ }
+
+ public String getIteratorName() {
+ return iteratorName;
+ }
+
+ @Override
+ public String toString() {
+ return new String(priority + FIELD_SEP + iteratorClass + FIELD_SEP + iteratorName);
+ }
+
+ }
+
+ /**
+ * @deprecated since 1.5.0; Use {@link IteratorSetting} instead.
+ */
+ @Deprecated
+ static class AccumuloIteratorOption {
+ private static final String FIELD_SEP = ":";
+
+ private String iteratorName;
+ private String key;
+ private String value;
+
+ public AccumuloIteratorOption(String iteratorName, String key, String value) {
+ this.iteratorName = iteratorName;
+ this.key = key;
+ this.value = value;
+ }
+
+ // Parses out an option given a string supplied from an earlier toString() call
+ public AccumuloIteratorOption(String iteratorOption) {
+ StringTokenizer tokenizer = new StringTokenizer(iteratorOption, FIELD_SEP);
+ this.iteratorName = tokenizer.nextToken();
+ try {
+ this.key = URLDecoder.decode(tokenizer.nextToken(), "UTF-8");
+ this.value = URLDecoder.decode(tokenizer.nextToken(), "UTF-8");
+ } catch (UnsupportedEncodingException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ public String getIteratorName() {
+ return iteratorName;
+ }
+
+ public String getKey() {
+ return key;
+ }
+
+ public String getValue() {
+ return value;
+ }
+
+ @Override
+ public String toString() {
+ try {
+ return new String(iteratorName + FIELD_SEP + URLEncoder.encode(key, "UTF-8") + FIELD_SEP + URLEncoder.encode(value, "UTF-8"));
+ } catch (UnsupportedEncodingException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ }
+
+ // use reflection to pull the Configuration out of the JobContext for Hadoop 1 and Hadoop 2 compatibility
+ static Configuration getConfiguration(JobContext context) {
+ try {
+ Class<?> c = InputFormatBase.class.getClassLoader().loadClass("org.apache.hadoop.mapreduce.JobContext");
+ Method m = c.getMethod("getConfiguration");
+ Object o = m.invoke(context, new Object[0]);
+ return (Configuration) o;
+ } catch (Exception e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+}
http://git-wip-us.apache.org/repos/asf/accumulo/blob/16a2e0f0/core/src/main/java/org/apache/accumulo/core/client/mapreduce/RangeInputSplit.java
----------------------------------------------------------------------
diff --cc core/src/main/java/org/apache/accumulo/core/client/mapreduce/RangeInputSplit.java
index 0000000,0000000..d613836
new file mode 100644
--- /dev/null
+++ b/core/src/main/java/org/apache/accumulo/core/client/mapreduce/RangeInputSplit.java
@@@ -1,0 -1,0 +1,503 @@@
++/*
++ * 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.client.mapreduce;
++
++import java.io.DataInput;
++import java.io.DataOutput;
++import java.io.IOException;
++import java.math.BigInteger;
++import java.nio.charset.Charset;
++import java.util.ArrayList;
++import java.util.List;
++import java.util.Set;
++
++import org.apache.accumulo.core.client.AccumuloSecurityException;
++import org.apache.accumulo.core.client.Instance;
++import org.apache.accumulo.core.client.IteratorSetting;
++import org.apache.accumulo.core.client.ZooKeeperInstance;
++import org.apache.accumulo.core.client.mapreduce.lib.util.InputConfigurator;
++import org.apache.accumulo.core.client.mock.MockInstance;
++import org.apache.accumulo.core.client.security.tokens.AuthenticationToken;
++import org.apache.accumulo.core.data.ByteSequence;
++import org.apache.accumulo.core.data.Key;
++import org.apache.accumulo.core.data.PartialKey;
++import org.apache.accumulo.core.data.Range;
++import org.apache.accumulo.core.security.Authorizations;
++import org.apache.accumulo.core.security.CredentialHelper;
++import org.apache.accumulo.core.util.Pair;
++import org.apache.commons.codec.binary.Base64;
++import org.apache.hadoop.io.Text;
++import org.apache.hadoop.io.Writable;
++import org.apache.hadoop.mapreduce.InputSplit;
++import org.apache.hadoop.util.StringUtils;
++import org.apache.log4j.Level;
++
++/**
++ * The Class RangeInputSplit. Encapsulates an Accumulo range for use in Map Reduce jobs.
++ */
++public class RangeInputSplit extends InputSplit implements Writable {
++ private Range range;
++ private String[] locations;
++ private String table, instanceName, zooKeepers, principal;
++ private String rowRegex, colfamRegex, colqualRegex, valueRegex;
++ private AuthenticationToken token;
++ private Boolean offline, mockInstance, isolatedScan, localIterators;
++ private Integer maxVersions;
++ private Authorizations auths;
++ private Set<Pair<Text,Text>> fetchedColumns;
++ private List<IteratorSetting> iterators;
++ private Level level;
++
++ public RangeInputSplit() {
++ range = new Range();
++ locations = new String[0];
++ }
++
++ public RangeInputSplit(Range range, String[] locations) {
++ this.range = range;
++ this.locations = locations;
++ }
++
++ public Range getRange() {
++ return range;
++ }
++
++ private static byte[] extractBytes(ByteSequence seq, int numBytes) {
++ byte[] bytes = new byte[numBytes + 1];
++ bytes[0] = 0;
++ for (int i = 0; i < numBytes; i++) {
++ if (i >= seq.length())
++ bytes[i + 1] = 0;
++ else
++ bytes[i + 1] = seq.byteAt(i);
++ }
++ return bytes;
++ }
++
++ public static float getProgress(ByteSequence start, ByteSequence end, ByteSequence position) {
++ int maxDepth = Math.min(Math.max(end.length(), start.length()), position.length());
++ BigInteger startBI = new BigInteger(extractBytes(start, maxDepth));
++ BigInteger endBI = new BigInteger(extractBytes(end, maxDepth));
++ BigInteger positionBI = new BigInteger(extractBytes(position, maxDepth));
++ return (float) (positionBI.subtract(startBI).doubleValue() / endBI.subtract(startBI).doubleValue());
++ }
++
++ public float getProgress(Key currentKey) {
++ if (currentKey == null)
++ return 0f;
++ if (range.getStartKey() != null && range.getEndKey() != null) {
++ if (range.getStartKey().compareTo(range.getEndKey(), PartialKey.ROW) != 0) {
++ // just look at the row progress
++ return getProgress(range.getStartKey().getRowData(), range.getEndKey().getRowData(), currentKey.getRowData());
++ } else if (range.getStartKey().compareTo(range.getEndKey(), PartialKey.ROW_COLFAM) != 0) {
++ // just look at the column family progress
++ return getProgress(range.getStartKey().getColumnFamilyData(), range.getEndKey().getColumnFamilyData(), currentKey.getColumnFamilyData());
++ } else if (range.getStartKey().compareTo(range.getEndKey(), PartialKey.ROW_COLFAM_COLQUAL) != 0) {
++ // just look at the column qualifier progress
++ return getProgress(range.getStartKey().getColumnQualifierData(), range.getEndKey().getColumnQualifierData(), currentKey.getColumnQualifierData());
++ }
++ }
++ // if we can't figure it out, then claim no progress
++ return 0f;
++ }
++
++ /**
++ * This implementation of length is only an estimate, it does not provide exact values. Do not have your code rely on this return value.
++ */
++ public long getLength() throws IOException {
++ Text startRow = range.isInfiniteStartKey() ? new Text(new byte[] {Byte.MIN_VALUE}) : range.getStartKey().getRow();
++ Text stopRow = range.isInfiniteStopKey() ? new Text(new byte[] {Byte.MAX_VALUE}) : range.getEndKey().getRow();
++ int maxCommon = Math.min(7, Math.min(startRow.getLength(), stopRow.getLength()));
++ long diff = 0;
++
++ byte[] start = startRow.getBytes();
++ byte[] stop = stopRow.getBytes();
++ for (int i = 0; i < maxCommon; ++i) {
++ diff |= 0xff & (start[i] ^ stop[i]);
++ diff <<= Byte.SIZE;
++ }
++
++ if (startRow.getLength() != stopRow.getLength())
++ diff |= 0xff;
++
++ return diff + 1;
++ }
++
++ public String[] getLocations() throws IOException {
++ return locations;
++ }
++
++ public void readFields(DataInput in) throws IOException {
++ range.readFields(in);
++ int numLocs = in.readInt();
++ locations = new String[numLocs];
++ for (int i = 0; i < numLocs; ++i)
++ locations[i] = in.readUTF();
++
++ if (in.readBoolean()) {
++ isolatedScan = in.readBoolean();
++ }
++
++ if (in.readBoolean()) {
++ offline = in.readBoolean();
++ }
++
++ if (in.readBoolean()) {
++ localIterators = in.readBoolean();
++ }
++
++ if (in.readBoolean()) {
++ mockInstance = in.readBoolean();
++ }
++
++ if (in.readBoolean()) {
++ maxVersions = in.readInt();
++ }
++
++ if (in.readBoolean()) {
++ rowRegex = in.readUTF();
++ }
++
++ if (in.readBoolean()) {
++ colfamRegex = in.readUTF();
++ }
++
++ if (in.readBoolean()) {
++ colqualRegex = in.readUTF();
++ }
++
++ if (in.readBoolean()) {
++ valueRegex = in.readUTF();
++ }
++
++ if (in.readBoolean()) {
++ int numColumns = in.readInt();
++ List<String> columns = new ArrayList<String>(numColumns);
++ for (int i = 0; i < numColumns; i++) {
++ columns.set(i, in.readUTF());
++ }
++
++ fetchedColumns = InputConfigurator.deserializeFetchedColumns(columns);
++ }
++
++ if (in.readBoolean()) {
++ auths = new Authorizations(StringUtils.split(in.readUTF()));
++ }
++
++ if (in.readBoolean()) {
++ principal = in.readUTF();
++ }
++
++ if (in.readBoolean()) {
++ String tokenClass = in.readUTF();
++ byte[] base64TokenBytes = in.readUTF().getBytes(Charset.forName("UTF-8"));
++ byte[] tokenBytes = Base64.decodeBase64(base64TokenBytes);
++
++ try {
++ token = CredentialHelper.extractToken(tokenClass, tokenBytes);
++ } catch (AccumuloSecurityException e) {
++ throw new IOException(e);
++ }
++ }
++
++ if (in.readBoolean()) {
++ instanceName = in.readUTF();
++ }
++
++ if (in.readBoolean()) {
++ zooKeepers = in.readUTF();
++ }
++
++ if (in.readBoolean()) {
++ level = Level.toLevel(in.readInt());
++ }
++ }
++
++ public void write(DataOutput out) throws IOException {
++ range.write(out);
++ out.writeInt(locations.length);
++ for (int i = 0; i < locations.length; ++i)
++ out.writeUTF(locations[i]);
++
++ out.writeBoolean(null != isolatedScan);
++ if (null != isolatedScan) {
++ out.writeBoolean(isolatedScan);
++ }
++
++ out.writeBoolean(null != offline);
++ if (null != offline) {
++ out.writeBoolean(offline);
++ }
++
++ out.writeBoolean(null != localIterators);
++ if (null != localIterators) {
++ out.writeBoolean(localIterators);
++ }
++
++ out.writeBoolean(null != mockInstance);
++ if (null != mockInstance) {
++ out.writeBoolean(mockInstance);
++ }
++
++ out.writeBoolean(null != maxVersions);
++ if (null != maxVersions) {
++ out.writeInt(getMaxVersions());
++ }
++
++ out.writeBoolean(null != rowRegex);
++ if (null != rowRegex) {
++ out.writeUTF(rowRegex);
++ }
++
++ out.writeBoolean(null != colfamRegex);
++ if (null != colfamRegex) {
++ out.writeUTF(colfamRegex);
++ }
++
++ out.writeBoolean(null != colqualRegex);
++ if (null != colqualRegex) {
++ out.writeUTF(colqualRegex);
++ }
++
++ out.writeBoolean(null != valueRegex);
++ if (null != valueRegex) {
++ out.writeUTF(valueRegex);
++ }
++
++ out.writeBoolean(null != fetchedColumns);
++ if (null != fetchedColumns) {
++ String[] cols = InputConfigurator.serializeColumns(fetchedColumns);
++ out.writeInt(cols.length);
++ for (String col : cols) {
++ out.writeUTF(col);
++ }
++ }
++
++ out.writeBoolean(null != auths);
++ if (null != auths) {
++ out.writeUTF(auths.serialize());
++ }
++
++ out.writeBoolean(null != principal);
++ if (null != principal) {
++ out.writeUTF(principal);
++ }
++
++ out.writeBoolean(null != token);
++ if (null != token) {
++ out.writeUTF(token.getClass().getCanonicalName());
++ try {
++ out.writeUTF(CredentialHelper.tokenAsBase64(token));
++ } catch (AccumuloSecurityException e) {
++ throw new IOException(e);
++ }
++ }
++
++ out.writeBoolean(null != instanceName);
++ if (null != instanceName) {
++ out.writeUTF(instanceName);
++ }
++
++ out.writeBoolean(null != zooKeepers);
++ if (null != zooKeepers) {
++ out.writeUTF(zooKeepers);
++ }
++
++ out.writeBoolean(null != level);
++ if (null != level) {
++ out.writeInt(level.toInt());
++ }
++ }
++
++ @Override
++ public String toString() {
++ StringBuilder sb = new StringBuilder(128);
++ sb.append("Range: ").append(range);
++ sb.append(" Locations: ").append(locations);
++ sb.append(" Table: ").append(table);
++ // TODO finish building of string
++ return sb.toString();
++ }
++
++ public String getTable() {
++ return table;
++ }
++
++ public void setTable(String table) {
++ this.table = table;
++ }
++
++ public Instance getInstance() {
++ if (null == instanceName) {
++ return null;
++ }
++
++ if (isMockInstance()) {
++ return new MockInstance(getInstanceName());
++ }
++
++ if (null == zooKeepers) {
++ return null;
++ }
++
++ return new ZooKeeperInstance(getInstanceName(), getZooKeepers());
++ }
++
++ public String getInstanceName() {
++ return instanceName;
++ }
++
++ public void setInstanceName(String instanceName) {
++ this.instanceName = instanceName;
++ }
++
++ public String getZooKeepers() {
++ return zooKeepers;
++ }
++
++ public void setZooKeepers(String zooKeepers) {
++ this.zooKeepers = zooKeepers;
++ }
++
++ public String getPrincipal() {
++ return principal;
++ }
++
++ public void setPrincipal(String principal) {
++ this.principal = principal;
++ }
++
++ public AuthenticationToken getToken() {
++ return token;
++ }
++
++ public void setToken(AuthenticationToken token) {
++ this.token = token;;
++ }
++
++ public Boolean isOffline() {
++ return offline;
++ }
++
++ public void setOffline(Boolean offline) {
++ this.offline = offline;
++ }
++
++ public void setLocations(String[] locations) {
++ this.locations = locations;
++ }
++
++ public String getRowRegex() {
++ return rowRegex;
++ }
++
++ public void setRowRegex(String rowRegex) {
++ this.rowRegex = rowRegex;
++ }
++
++ public String getColfamRegex() {
++ return colfamRegex;
++ }
++
++ public void setColfamRegex(String colfamRegex) {
++ this.colfamRegex = colfamRegex;
++ }
++
++ public String getColqualRegex() {
++ return colqualRegex;
++ }
++
++ public void setColqualRegex(String colqualRegex) {
++ this.colqualRegex = colqualRegex;
++ }
++
++ public String getValueRegex() {
++ return valueRegex;
++ }
++
++ public void setValueRegex(String valueRegex) {
++ this.valueRegex = valueRegex;
++ }
++
++ public Boolean isMockInstance() {
++ return mockInstance;
++ }
++
++ public void setMockInstance(Boolean mockInstance) {
++ this.mockInstance = mockInstance;
++ }
++
++ public Boolean isIsolatedScan() {
++ return isolatedScan;
++ }
++
++ public void setIsolatedScan(Boolean isolatedScan) {
++ this.isolatedScan = isolatedScan;
++ }
++
++ public Integer getMaxVersions() {
++ return maxVersions;
++ }
++
++ public void setMaxVersions(Integer maxVersions) {
++ this.maxVersions = maxVersions;
++ }
++
++ public Authorizations getAuths() {
++ return auths;
++ }
++
++ public void setAuths(Authorizations auths) {
++ this.auths = auths;
++ }
++
++ public void setRange(Range range) {
++ this.range = range;
++ }
++
++ public Boolean usesLocalIterators() {
++ return localIterators;
++ }
++
++ public void setUsesLocalIterators(Boolean localIterators) {
++ this.localIterators = localIterators;
++ }
++
++ public Set<Pair<Text,Text>> getFetchedColumns() {
++ return fetchedColumns;
++ }
++
++ public void setFetchedColumns(Set<Pair<Text,Text>> fetchedColumns) {
++ this.fetchedColumns = fetchedColumns;
++ }
++
++ public List<IteratorSetting> getIterators() {
++ return iterators;
++ }
++
++ public void setIterators(List<IteratorSetting> iterators) {
++ this.iterators = iterators;
++ }
++
++ public Level getLogLevel() {
++ return level;
++ }
++
++ public void setLogLevel(Level level) {
++ this.level = level;
++ }
++}