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package eu.dnetlib.data.hadoop;
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import java.io.IOException;
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import java.util.Map;
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import com.google.common.collect.Maps;
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import com.google.gson.Gson;
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import eu.dnetlib.data.hadoop.config.ClusterName;
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import eu.dnetlib.data.hadoop.hbase.HBaseAdminFactory;
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import eu.dnetlib.data.hadoop.mapred.JobClientFactory;
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import eu.dnetlib.data.hadoop.oozie.OozieClientFactory;
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import eu.dnetlib.data.hadoop.rmi.HadoopServiceException;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.apache.hadoop.hbase.client.HBaseAdmin;
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import org.apache.hadoop.mapred.JobClient;
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import org.apache.oozie.client.OozieClient;
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import org.springframework.beans.factory.annotation.Required;
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public class HadoopClientMap {
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private static final Log log = LogFactory.getLog(HadoopClientMap.class); // NOPMD by marko on 11/24/08 5:02 PM
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private JobClientFactory jobClientFactory;
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private OozieClientFactory oozieClientFactory;
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private HBaseAdminFactory hbaseAdminFactory;
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private Map<String, Map<String, String>> enabledClients = Maps.newHashMap();
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public boolean isMapreduceAvailable(final ClusterName name) {
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return isClientAvailable(name, "mapred");
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}
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public boolean isOozieAvailable(final ClusterName name) {
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return isClientAvailable(name, "oozie");
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}
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public boolean isHbaseAvailable(final ClusterName name) {
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return isClientAvailable(name, "hbase");
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}
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private boolean isClientAvailable(final ClusterName name, final String clientName) {
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final String clusterName = name.toString();
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return enabledClients.containsKey(clusterName) && "true".equals(enabledClients.get(clusterName).get(clientName));
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}
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public JobClient getJtClient(final ClusterName clusterName, final String username) throws HadoopServiceException, IOException {
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if (!isMapreduceAvailable(clusterName)) {
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throw new HadoopServiceException("jobtracker is not available for cluster " + clusterName.toString());
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}
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return getJobClientFactory().newInstance(clusterName, username);
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}
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public JobClient getJtClient(final ClusterName clusterName) throws HadoopServiceException, IOException {
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if (!isMapreduceAvailable(clusterName)) {
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throw new HadoopServiceException("jobtracker is not available for cluster " + clusterName.toString());
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}
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return getJobClientFactory().newInstance(clusterName);
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}
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public OozieClient getOozieClient(final ClusterName name) throws HadoopServiceException {
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if (!isOozieAvailable(name)) {
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throw new HadoopServiceException("oozie is not available for cluster " + name.toString());
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}
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return getOozieClientFactory().newInstance(name);
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}
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public HBaseAdmin getHbaseAdmin(final ClusterName name) throws HadoopServiceException {
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if (!isHbaseAvailable(name)) {
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throw new HadoopServiceException("hbase is not available for cluster " + name.toString());
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}
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return getHbaseAdminFactory().newInstance(name);
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}
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// //////////
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public String getEnabledClients() {
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return new Gson().toJson(enabledClients);
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}
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@Required
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@SuppressWarnings("unchecked")
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public void setEnabledClients(final String enabledClients) {
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this.enabledClients = new Gson().fromJson(enabledClients, Map.class);
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}
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public JobClientFactory getJobClientFactory() {
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return jobClientFactory;
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}
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@Required
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public void setJobClientFactory(final JobClientFactory jobClientFactory) {
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this.jobClientFactory = jobClientFactory;
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}
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public OozieClientFactory getOozieClientFactory() {
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return oozieClientFactory;
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}
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@Required
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public void setOozieClientFactory(final OozieClientFactory oozieClientFactory) {
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this.oozieClientFactory = oozieClientFactory;
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}
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public HBaseAdminFactory getHbaseAdminFactory() {
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return hbaseAdminFactory;
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}
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@Required
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public void setHbaseAdminFactory(final HBaseAdminFactory hbaseAdminFactory) {
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this.hbaseAdminFactory = hbaseAdminFactory;
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}
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}
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