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package eu.dnetlib.data.hadoop;
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import java.io.IOException;
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import java.util.List;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.Set;
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import com.google.common.collect.Lists;
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import com.google.common.collect.Maps;
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import eu.dnetlib.data.hadoop.config.ClusterName;
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import eu.dnetlib.data.hadoop.rmi.HadoopJobDescriptor;
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import eu.dnetlib.data.hadoop.rmi.HadoopService;
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import eu.dnetlib.data.hadoop.rmi.HadoopServiceException;
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import eu.dnetlib.enabling.tools.AbstractBaseService;
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import eu.dnetlib.enabling.tools.blackboard.NotificationHandler;
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import org.apache.hadoop.conf.Configuration;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Required;
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/**
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* The Class HadoopServiceImpl.
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*/
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public class HadoopServiceImpl extends AbstractBaseService implements HadoopService {
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/**
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* notification handler.
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*/
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private NotificationHandler notificationHandler;
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/** The hadoop service core. */
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@Autowired
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private HadoopServiceCore hadoopServiceCore;
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/** The job registry. */
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@Autowired
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private JobRegistry jobRegistry;
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/*
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* (non-Javadoc)
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*
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* @see eu.dnetlib.data.hadoop.rmi.HadoopService#listAvailableJobs()
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*/
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@Override
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public List<String> listAvailableJobs() throws HadoopServiceException {
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List<String> res = Lists.newArrayList();
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return res;
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}
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/*
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* (non-Javadoc)
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*
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* @see eu.dnetlib.data.hadoop.rmi.HadoopService#listJobs(java.lang.String)
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*/
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@Override
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public List<HadoopJobDescriptor> listJobs(final String clusterName) throws HadoopServiceException {
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return jobRegistry.listJobs(checkExists(clusterName));
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}
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/*
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* (non-Javadoc)
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*
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* @see eu.dnetlib.data.hadoop.rmi.HadoopService#killJob(java.lang.String)
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*/
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@Override
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public boolean killJob(final String jobId) throws HadoopServiceException {
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jobRegistry.unregisterJob(jobId);
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return true;
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}
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/*
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* (non-Javadoc)
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*
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* @see eu.dnetlib.enabling.tools.AbstractBaseService#notify(java.lang.String, java.lang.String, java.lang.String, java.lang.String)
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*/
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@Override
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public void notify(final String subscriptionId, final String topic, final String isId, final String message) {
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getNotificationHandler().notified(subscriptionId, topic, isId, message);
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}
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/*
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* (non-Javadoc)
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*
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* @see eu.dnetlib.data.hadoop.rmi.HadoopService#listHbaseTables(java.lang.String)
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*/
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@Override
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public List<String> listHbaseTables(final String clusterName) throws HadoopServiceException {
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try {
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return hadoopServiceCore.listTables(checkExists(clusterName));
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} catch (IOException e) {
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throw new HadoopServiceException(e);
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}
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}
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/*
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* (non-Javadoc)
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*
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* @see eu.dnetlib.data.hadoop.rmi.HadoopService#ensureHbaseTable(java.lang.String, java.lang.String, java.util.Set)
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*/
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@Override
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public boolean ensureHbaseTable(final String clusterName, final String tableName, final Set<String> columns) throws HadoopServiceException {
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try {
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hadoopServiceCore.ensureTable(checkExists(clusterName), tableName, columns);
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return true;
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} catch (IOException e) {
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throw new HadoopServiceException(e);
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}
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}
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/*
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* (non-Javadoc)
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*
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* @see eu.dnetlib.data.hadoop.rmi.HadoopService#createHbaseTable(java.lang.String, java.lang.String, java.util.Set)
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*/
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@Override
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public boolean createHbaseTable(final String clusterName, final String tableName, final Set<String> columns) throws HadoopServiceException {
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try {
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hadoopServiceCore.createTable(checkExists(clusterName), tableName, columns);
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return true;
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} catch (IOException e) {
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throw new HadoopServiceException(e);
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}
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}
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/*
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* (non-Javadoc)
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*
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* @see eu.dnetlib.data.hadoop.rmi.HadoopService#truncateHbaseTable(java.lang.String, java.lang.String)
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*/
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@Override
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public boolean truncateHbaseTable(final String clusterName, final String tableName) throws HadoopServiceException {
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try {
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hadoopServiceCore.truncateTable(checkExists(clusterName), tableName);
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} catch (IOException e) {
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throw new HadoopServiceException(e);
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}
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return true;
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}
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/*
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* (non-Javadoc)
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*
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* @see eu.dnetlib.data.hadoop.rmi.HadoopService#dropHbaseTable(java.lang.String, java.lang.String)
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*/
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@Override
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public boolean dropHbaseTable(final String clusterName, final String tableName) throws HadoopServiceException {
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try {
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hadoopServiceCore.dropTable(checkExists(clusterName), tableName);
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} catch (IOException e) {
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throw new HadoopServiceException(e);
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}
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return true;
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}
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/*
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* (non-Javadoc)
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*
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* @see eu.dnetlib.data.hadoop.rmi.HadoopService#existHbaseTable(java.lang.String, java.lang.String)
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*/
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@Override
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public boolean existHbaseTable(final String clusterName, final String tableName) throws HadoopServiceException {
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try {
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return hadoopServiceCore.existTable(checkExists(clusterName), tableName);
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} catch (IOException e) {
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throw new HadoopServiceException(e);
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}
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}
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/*
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* (non-Javadoc)
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*
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* @see eu.dnetlib.data.hadoop.rmi.HadoopService#getClusterConfiguration(java.lang.String)
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*/
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@Override
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public Map<String, String> getClusterConfiguration(final String clusterName) throws HadoopServiceException {
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final Configuration conf = hadoopServiceCore.getClusterConiguration(checkExists(clusterName));
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final Map<String, String> res = Maps.newHashMap();
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for (Entry<String, String> e : conf) {
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res.put(e.getKey(), e.getValue());
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}
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return res;
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}
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@Override
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public boolean deleteHdfsPath(final String clusterName, final String path) throws HadoopServiceException {
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return hadoopServiceCore.deleteFromHdfs(checkExists(clusterName), path);
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}
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@Override
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public boolean createHdfsDirectory(final String clusterName, final String path, final boolean force) throws HadoopServiceException {
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return hadoopServiceCore.createHdfsDir(checkExists(clusterName), path, force);
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}
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@Override
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public List<String> listClusters() throws HadoopServiceException {
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try {
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return ClusterName.asStringList();
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} catch (Throwable e) {
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throw new HadoopServiceException(e);
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}
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}
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@Override
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public List<String> describeHbaseTable(final String clusterName, final String tableName) throws HadoopServiceException {
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try {
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return hadoopServiceCore.describeTable(checkExists(clusterName), tableName);
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} catch (IOException e) {
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throw new HadoopServiceException(e);
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}
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}
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// /////////////////
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/**
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* Check exists.
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*
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* @param clusterName
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* the cluster name
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* @return the cluster name
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* @throws HadoopServiceException
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* the hadoop service exception
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*/
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private ClusterName checkExists(final String clusterName) throws HadoopServiceException {
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try {
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return ClusterName.valueOf(clusterName);
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} catch (final IllegalArgumentException e) {
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throw new HadoopServiceException("Invalid cluster name: " + clusterName);
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}
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}
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/**
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* Gets the notification handler.
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*
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* @return the notification handler
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*/
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public NotificationHandler getNotificationHandler() {
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return notificationHandler;
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}
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/**
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* Sets the notification handler.
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*
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* @param notificationHandler
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* the new notification handler
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*/
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@Required
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public void setNotificationHandler(final NotificationHandler notificationHandler) {
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this.notificationHandler = notificationHandler;
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}
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}
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